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| Product Type | Managed Gigabit Ethernet Switch |
| Model Number | GSM7352Sv2 |
| Ports | 48 Gigabit Ethernet ports |
| Uplink Ports | 4 SFP+ ports (10 Gigabit) |
| Management | Web-based GUI, CLI, SNMP, Telnet, SSH |
| Layer Support | Layer 2+ (Static routing, VLAN, QoS, IGMP snooping) |
| Stacking | Up to 8 units (with optional stacking module) |
| Switching Capacity | 176 Gbps |
| Forwarding Rate | 130.9 Mpps |
| MAC Address Table | 16K entries |
| Dimensions (W x D x H) | 440 x 310 x 43 mm (17.3 x 12.2 x 1.7 in) |
| Weight | 4.7 kg (10.4 lb) |
| Power Supply | 100-240V AC, 50-60 Hz, 66W max |
| Cooling | Fan (2) - internal |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Safety | CE, FCC, VCCI, cUL |
| Cleaning | Use dry cloth; avoid liquid cleaners |
| Spare Parts | Power supply module, stacking module, fans |
| Repairability | Modular components for easy replacement |
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USER MANUAL GSM7352Sv2 NETGEAR
ProSafe 7300S Managed Switches CLI Manual, Version 8.0.3
NETGEAR
NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134
202-10715-01
July 2010
© 2010 by NETGEAR, Inc. All rights reserved.
Trademarks
NETGEAR and the NETGEAR logo are registered trademarks, and ProSafe is a trademark of NETGEAR, Inc.
Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other brand and product names are registered trademarks or trademarks of their respective holders. Portions of this document are copyright Intoto, Inc.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
EN 55 022 Declaration of Conformance
This is to certify that the ProSafe 7300S Series Layer-3 Managed Stackable Switch is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class B (CISPR 22).
Certificate of the Manufacturer/Importer
It is hereby certified that the ProSafe 7300S Series Layer-3 Managed Stackable Switch has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the notes in the operating instructions.
The Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right to test the series for compliance with the regulations.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the Class B category (information equipment to be used in a residential area or an adjacent area thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and Electronic Office Machines aimed at preventing radio interference in such residential areas. When used near a radio or TV receiver, it may become the cause of radio interference. Read instructions for correct handling.
Product and Publication Details
Model Number: GSM7328S, GSM7352S, GSM7328FS, GSM7328Sv2, and GSM7352Sv2
Publication Date: July 2010
Product Family: managed switch
Product Name: ProSafe 7300S Series Layer-3 Managed Stackable Switch
Home or Business Product: Business
Language: English
Publication Part Number: 202-10715-01
Publication Version Number 1.0
Contents
About This Manual
Audience xi
About Managed Switch Software xi
Scope xi
Chapter 1
Using the Command-Line Interface
Command Syntax 1-1
Command Conventions 1-2
Common Parameter Values 1-3
Unit/Slot/Port Naming Convention 1-3
Using the "No" Form of a Command 1-4
Managed Switch Modules 1-5
Command Modes 1-5
Command Completion and Abbreviation 1-9
CLI Error Messages 1-9
CLI Line-Editing Conventions ...... 1-10
Using CLI Help 1-11
Accessing the CLI 1-12
Chapter 2
Stacking Commands
Dedicated Port Stacking 2-1
Front Panel Stacking Commands 2-10
Chapter 3
Switching Commands
Port Configuration Commands 3-2
Spanning Tree Protocol (STP) Commands 3-11
VLAN Commands 3-31
Double VLAN Commands 3-46
Voice VLAN Commands 3-48
Provisioning (IEEE 802.1p) Commands ....3-51
Protected Ports Commands 3-52
Private Group Commands 3-54
GARP Commands 3-56
GVRP Commands 3-59
GMRP Commands 3-61
Port-Based Network Access Control Commands 3-64
Storm-Control Commands 3-78
Port-Channel/LAG (802.3ad) Commands 3-90
Port Mirroring 3-113
Static MAC Filtering 3-115
DHCP Snooping Configuration Commands 3-120
Dynamic ARP Inspection Commands 3-131
IGMP Snooping Configuration Commands 3-139
IGMP Snooping Querier Commands 3-148
MLD Snooping Commands 3-153
MLD Snooping Querier Commands 3-162
Port Security Commands 3-166
LLDP (802.1AB) Commands 3-170
LLDP-MED Commands 3-181
Denial of Service Commands 3-192
MAC Database Commands 3-204
ISDP Commands 3-206
Chapter 4 Routing Commands
Address Resolution Protocol (ARP) Commands 4-1
IP Routing Commands 4-8
Router Discovery Protocol Commands 4-20
Virtual LAN Routing Commands.... 4-24
Virtual Router Redundancy Protocol Commands.... 4-25
DHCP and BOOTP Relay Commands 4-34
IP Helper Commands 4-36
Open Shortest Path First (OSPF) Commands 4-39
Routing Information Protocol (RIP) Commands 4-82
ICMP Throttling Commands 4-91
Chapter 5
IP Multicast Commands
Multicast Commands 5-1
DVMRP Commands 5-7
PIM-DM Commands 5-12
PIM-SM Commands 5-16
Internet Group Message Protocol (IGMP) Commands 5-26
IGMP Proxy Commands 5-35
Chapter 6
IPv6 Multicast Commands
IPv6 Multicast Forwarder 6-2
IPv6 PIM-DM Commands 6-4
IPv6 PIM-SM Commands 6-8
IPv6 MLD Commands 6-16
IPv6 MLD-Proxy Commands 6-23
Chapter 7
IPv6 Commands
IPv6 Management Commands 7-2
Tunnel Interface Commands 7-6
Loopback Interface Commands....7-8
IPv6 Routing Commands 7-10
OSPFv3 Commands 7-33
DHCPv6 Commands 7-68
Chapter 8
Quality of Service (QoS) Commands
Class of Service (CoS) Commands 8-2
Differentiated Services (DiffServ) Commands 8-8
DiffServ Class Commands 8-10
DiffServ Policy Commands 8-19
DiffServ Service Commands 8-25
DiffServ Show Commands 8-26
MAC Access Control List (ACL) Commands 8-32
IP Access Control List (ACL) Commands 8-37
IPv6 Access Control List (ACL) Commands 8-44
Auto-Voice over IP Commands 8-48
Chapter 9
Utility Commands
Auto Install Commands 9-2
Dual Image Commands 9-4
System Information and Statistics Commands 9-6
Logging Commands 9-18
System Utility and Clear Commands 9-24
Simple Network Time Protocol (SNTP) Commands 9-34
DHCP Server Commands 9-40
DNS Client Commands 9-55
Packet Capture Commands 9-61
Serviceability Packet Tracing Commands 9-63
Cable Test Command.... 9-83
sFlow Commands 9-84
Software License Commands 9-89
Chapter 10 July 2010
Management Commands
Configuring the Switch Management CPU 11-2
Network Interface Commands 11-4
Console Port Access Commands 11-8
Telnet Commands 11-11
Secure Shell (SSH) Commands 11-16
Management Security Commands 11-19
Hypertext Transfer Protocol (HTTP) Commands 11-20
Access Commands 11-28
User Account Commands 11-29
SNMP Commands 11-40
RADIUS Commands 11-52
TACACS+ Commands 11-67
Configuration Scripting Commands 11-71
Pre-login Banner and System Prompt Commands 11-73
Chapter 11
Log Messages
Core 11-1
Utilities 11-4
Management 11-6
Switching 11-10
QoS 11-16
Routing/IPv6 Routing 11-17
Multicast 11-21
Stacking 11-23
Technologies 11-23
O/S Support 11-26
Chapter 12
Captive Portal Commands
Capitve Portal Global Commands 12-1
Captive Portal Configuration Commands 12-5
Captive Portal Status Commands 12-14
Captive Portal Client Connection Commands 12-19
Captive Portal Interface Commands 12-23
Captive Portal Local User Commands 12-24
Captive Portal User Group Commands 12-31
Chapter 13
List of Commands
About This Manual
This document describes command-line interface (CLI) commands you use to view and configure 7300S Series Stackable Switch software. You can access the CLI by using a direct connection to the serial port or by using telnet or SSH over a remote network connection.

Note: This document contains both standalone and stacking commands.
Audience
This document is for system administrators who configure and operate switches using 7300S Series Stackable Switch software. It provides an understanding of the configuration options of the software.
This document assumes that the reader has an understanding of the software base and has read the appropriate specification for the relevant networking device platform. It also assumes that the reader has a basic knowledge of Ethernet and networking concepts.
About Managed Switch Software
The Managed Switch software has two purposes:
- Assist attached hardware in switching frames, based on Layer 2, 3, or 4 information contained in the frames.
- Provide a complete device management portfolio to the network administrator.
Scope
This manual covers the layer 3 managed switches (GSM7328S, GSM7352S, GSM7328FS, GSM7328Sv2, and GSM7352Sv2). Some of the commands described in this manual can only be used on GSM7328Sv2 and GSM7352Sv2 switches. These commands are noted in text.
The following figure shows the GSM7328S and GSM7352S switches. Newer documentation refers to these two switches as GSM7328Sv1 and GSM7352Sv1. Also shown are the GSM7328Sv2 and GSM7352Sv2 switches.
Version 1 Switches

text_image
NETGEAR Green Link at 10008 Yellow Link at 1008 2 4 6 8 10 12 14 16 18 20 22T 24T 21F 22F 23F 24F GSM7328S Module 1 Module 2GSM7328Sv1

text_image
NETGEAR ID 1 Ldc 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41T 43T 45T 47T B A,B,C,D,E,F,G,H,I,J,K,L,M,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N-N Green Link at 10008 Yellow Link at 10008GSM7352Sv1
Version 2 Switches

text_image
NETGEAR PROSAFE GSM73285 Speed: 100 Hz Dial/Max Volume (bit at 10) GB/MB Description (bit at 10) Max: 467 Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power Power PowerGSM7328Sv2

text_image
NETGEAR PROSAFE GSM73525GSM7352Sv2
Conventions and Formats
The conventions, formats, and scope of this manual are described in the following paragraphs:
- Typographical Conventions. This manual uses the following typographical conventions::
| Italic Emphasis, books, CDs, file and server names, extensions | |
| Bold User input, IP addresses, GUI screen text | |
| Fixed Command prompt, CLI text, code | |
| italic URL links |
- Formats. This manual uses the following formats to highlight special messages:
| Note: This format is used to highlight information of importance or special interest. |
| Tip: This format is used to highlight a procedure that will save time or resources. |
| Warning: Ignoring this type of note may result in a malfunction or damage to the equipment. |
| Danger: This is a safety warning. Failure to take heed of this notice may result in personal injury or death. |
For more information about network, Internet, firewall, and VPN technologies, go to: http://kbserver.netgear.com.
How to Print This Manual
To print this manual, your computer must have the free Adobe Acrobat reader installed in order to view and print PDF files. The Acrobat reader is available on the Adobe Web site at http://www.adobe.com.
Revision History
Table 1-1.
| Part Number | Version Number | Date Description |
| 202-10715-01 1 | 0 July 2010 | 0 7300S Managed Switches CLI Manual, Version 8.0.3 |
Chapter 1
Using the Command-Line Interface
The command-line interface (CLI) is a text-based way to manage and monitor the system. You can access the CLI by using a direct serial connection or by using a remote logical connection with telnet or SSH.
This chapter describes the CLI syntax, conventions, and modes. It contains the following sections:
- “Command Syntax” on page 1-1
- “Command Conventions” on page 1-2
- “Common Parameter Values” on page 1-3
- “Unit/Slot/Port Naming Convention” on page 1-3
- “Using the “No” Form of a Command” on page 1-4
- “Managed Switch Modules” on page 1-5
- “Command Modes” on page 1-5
- “Command Completion and Abbreviation” on page 1-9
- “CLI Error Messages” on page 1-9
- “CLI Line-Editing Conventions” on page 1-10
• “Using CLI Help” on page 1-11 - “Accessing the CLI” on page 1-12
Command Syntax
A command is one or more words that might be followed by one or more parameters. Parameters can be required or optional values.
Some commands, such as show network or clear vlan, do not require parameters. Other commands, such as network parms, require that you supply a value after the command. You must type the parameter values in a specific order, and optional parameters follow required parameters. The following example describes the network parms command syntax:
Format network parms
• network parms is the command name.
and are parameters and represent required values that you must enter after you type the command keywords.
• [gateway] is an optional parameter, so you are not required to enter a value in place of the parameter.
The CLI Command Reference lists each command by the command name and provides a brief description of the command. Each command reference also contains the following information:
- Format shows the command keywords and the required and optional parameters.
- Mode identifies the command mode you must be in to access the command.
- Default shows the default value, if any, of a configurable setting on the device.
The show commands also contain a description of the information that the command shows.
Command Conventions
In this document, the command name is in bold font. Parameters are in italic font. You must replace the parameter name with an appropriate value, which might be a name or number. Parameters are order dependent.
The parameters for a command might include mandatory values, optional values, or keyword choices. Table 1 describes the conventions this document uses to distinguish between value types.
Table 1. Parameter Conventions
| Symbol Example Description | ||
| <angle bracketsIndicates that you must enter a value in place of the brackets and text inside them. | ||
| [] square brackets [value] Indicates an optional parameter that you can enter in place of the brackets and text inside them. | ||
| {} curly braces {choice1 | choice2} | Indicates that you must select a parameter from the list of choices. | |
| | Vertical bars choice1 | choice2 Separate | s the mutually exclusive choices. | |
| [{}] Braces within square brackets | [{choice1 | choice2}] | Indicates a choice within an optional element. |
Common Parameter Values
Parameter values might be names (strings) or numbers. To use spaces as part of a name parameter, enclose the name value in double quotes. For example, the expression “System Name with Spaces” forces the system to accept the spaces. Empty strings (“”) are not valid user-defined strings. Table 2 describes common parameter values and value formatting.
Table 2. Parameter Descriptions
| Parameter Description | |
| ipaddr This parameter is a valid IP address. You can enter the IP address in the following formats:a (32 bits)a.b (8.24 bits)a.b.c (8.8.16 bits)a.b.c.d (8.8.8.8)In addition to these formats, the CLI accepts decimal, hexadecimal and octal formats through the following input formats (where n is any valid hexadecimal, octal or decimal number):0xn (CLI assumes hexadecimal format)0n (CLI assumes octal format with leading zeros)n (CLI assumes decimal format) | |
| ipv6-address FE80:0000:0000:0000:020F:24FF:FEBF:DBCB, orFE80:0:0:0:20F:24FF:FEBF:DBCB, orFE80::20F24FF:FEBF:DBCB, orFE80:0:0:0:20F:24FF:128:141:49:32For additional information, refer to RFC 3513. | |
| Interface or unit/slot/port | Valid unit, slot, and port number separated by forward slashes. For example, 0/1 represents slot number 0 and port number 1. |
| Logical Interface Represents a logical slot and port number. This is applicable in the case of a port-channel (LAG). You can use the logical unit/slot/port to configure the port-channel. | |
| Character strings Use double quotation marks to identify character strings, for example, “System Name with Spaces”. An empty string (“”) is not valid. | |
Unit/Slot/Port Naming Convention
Managed switch software references physical entities such as cards and ports by using a unit/slot/port naming convention. The software also uses this convention to identify certain logical entities, such as Port-Channel interfaces.
The slot number has two uses. In the case of physical ports, it identifies the card containing the ports. In the case of logical and CPU ports it also identifies the type of interface or port.
Table 3. Type of Slots
| Slot Type Description | |
| Physical slot numbers Physical slot numbers begin with zero, and are allocated up to the maximum number of physical slots. | |
| Logical slot numbers Logical slots immediately follow physical slots and identify port-channel (LAG) or router interfaces. | |
| CPU slot numbers The CPU slots immediately follow the logical slots. | |
The port identifies the specific physical port or logical interface being managed on a given slot.
Table 4. Type of Ports
| Port Type Description | |
| Physical Ports The physical ports for each slot are numbered sequentially starting from zero. | |
| Logical Interfaces Port-channel or Link Aggregation Group (LAG) interfaces are logical interfaces that are only used for bridging functions.VLAN routing interfaces are only used for routing functions.Loopback interfaces are logical interfaces that are always up.Tunnel interfaces are logical point-to-point links that carry encapsulated packets. | |
| CPU ports CPU ports are handled by the driver as one or more physical entities located on physical slots. | |
| Note: In the CLI, loopback and tunnel interfaces do not use the unit/slot/port format. To specify a loopback interface, you use the loopback ID. To specify a tunnel interface, you use the tunnel ID. |
Using the "No" Form of a Command
The no keyword is a specific form of an existing command and does not represent a new or distinct command. Almost every configuration command has a no form. In general, use the no form to reverse the action of a command or reset a value back to the default. For example, the no
shutdown configuration command reverses the shutdown of an interface. Use the command without the keyword no to re-enable a disabled feature or to enable a feature that is disabled by default. Only the configuration commands are available in the no form.
Managed Switch Modules
Managed switch software consists of flexible modules that can be applied in various combinations to develop advanced Layer 2/3/4+ products. The commands and command modes available on your switch depend on the installed modules. Additionally, for some show commands, the output fields might change based on the modules included in the software.
The software suite includes the following modules:
- Switching (Layer 2)
- Routing (Layer 3)
- IPv6—IPv6 routing
- Multicast
• Quality of Service - Management (CLI, Web UI, and SNMP)
- IPv6 Management—Allows management of the device through an IPv6 through an IPv6 address without requiring the IPv6 Routing package in the system. The management address can be associated with the network port (front-panel switch ports), a routine interface (port or VLAN) and the Service port.
- Stacking
Not all modules are available for all platforms or software releases.
Command Modes
The CLI groups commands into modes according to the command function. Each of the command modes supports specific software commands. The commands in one mode are not available until you switch to that particular mode, with the exception of the User EXEC mode commands. You can execute the User EXEC mode commands in the Privileged EXEC mode.
The command prompt changes in each command mode to help you identify the current mode.
Table 5 describes the command modes and the prompts visible in that mode.
| Note: The command modes available on your switch depend on the software modules that are installed. For example, a switch that does not support BGPv4 does not have the Router BGPv4 Command Mode. |
Table 5. CLI Command Modes
| Command Mode Prompt Mode Description | ||
| User EXEC Switch> Contains a limited set of commands | to viewbasic system information. | |
| Privileged EXEC Switch# Allows you to issue any EXEC command, enter the VLAN mode, or enter the Global Configuration mode. | ||
| Global Config Switch (Config)# Groups general setup commands and permits you to make modifications to the running configuration. | ||
| VLAN Config Switch (Vlan)# Groups all the VLAN commands. | ||
| Interface Config Switch (Interface)#Switch (Interface Loopback)#Switch (Interface Tunnel)# | Manages the operation of an interface and provides access to the router interface configuration commands.Use this mode to set up a physical port for a specific logical connection operation. | |
| Line Config Switch (line)# Contains commands to configure outbound telnet settings and console interface settings. | ||
| Policy Map Config | Switch (Config-policy-map)# Contains the QoS Policy-Map configuration commands. | |
| Policy Class Config | Switch (Config-policy-class-map)# Consists of class creation, deletion, and matching commands. The class match commands specify Layer 2, Layer 3, and general match criteria. | |
| Class Map Config Switch (Config-class-map)# | Contains the QoS class map configuration commands for IPv4. | |
| IPv6_Class-Map Config | Switch (Config-class-map)# | Contains the QoS class map configuration commands for IPv6. |
| Router OSPF Config | Switch (Config-router)# | Contains the OSPF configuration commands. |
Table 5. CLI Command Modes (continued)
| Command Mode Prompt | Mode Description |
| Router OSPFv3 Config | Switch (Config rtr)# Contains the OSPFv3 configuration commands. |
| Router RIP Config | Switch (Config-router)# Contains the RIP configuration commands. |
| Router BGP Config | Switch (Config-router)# Contains the BGP4 configuration commands. |
| MAC Access-list Config | Switch (Config-mac-access-list)# Allows you to create a MAC Access-List and to enter the mode containing MAC Access-List configuration commands. |
| TACACS Config Switch | Switch (Tacacs)# Contains commands to configure properties for the TACACS servers. |
| DHCP Pool Config | Switch (Config dhcp-pool)# Contains the DHCP server IP address pool configuration commands. |
| DHCPv6 Pool Config | Switch (Config dhcp6-pool)# Contains the DHCPv6 server IPv6 address pool configuration commands. |
| Stack Global Config Mode | Switch (Config stack)# Allows you to access the Stack Global Config Mode. |
| ARP Access-List Config Mode | Switch (Config-arp-access-list)# Contains commands to add ARP ACL rules in an ARP Access List. |
Table 6 explains how to enter or exit each mode.
Table 6. CLI Mode Access and Exit
| Command Mode Access Method Exit or Access Previous Mode | ||
| User EXEC This is the first level of access. To exit, enter logout. | ||
| Privileged EXEC | From the User EXEC mode, enter enable. | To exit to the User EXEC mode, enter exit or press Ctrl-Z. |
| Global Config From | the Privileged EXEC mode, enter configure. | To exit to the Privileged EXEC mode, enter exit, or press Ctrl-Z. |
| VLAN Config | From the Privileged EXEC mode, enter vlan database. | To exit to the Privileged EXEC mode, enter exit, or press Ctrl-Z. |
| Interface Config | From the Global Config mode, enterinterfaceor interface loopbackor interface tunnel | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-Z. |
| Line Config From the Global Config mode, enter lineconfig. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. | |
| Policy-Map Config | From the Global Config mode, enter policy-mapin. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Policy-Class-Map Config | From the Policy Map mode enter class. | To exit to the Policy Map mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Class-Map Config | From the Global Config mode, enter class-map, and specify the optional keyword ipv4 to specify the Layer 3 protocol for this class. See “class-map” on page 8-10 for more information. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| IPv6-Class-Map Config | From the Global Config mode, enter class-map and specify the optional keyword ipv6 to specify the Layer 3 protocol for this class. See “class-map” on page 8-10 for more information. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Router OSPF Config | From the Global Config mode, enter router ospf. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Router OSPFv3 Config | From the Global Config mode, enter ipv6 router ospf. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Router RIP Config | From the Global Config mode, enter router rip. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| Router BGP Config | From the Global Config mode, enter router bgp. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| MAC Access-list Config | From the Global Config mode, enter mac access-list extended. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-z. |
| TACACS Config From the Global Config mode, enter tacacs-server host, whereis the IP address of the TACACS server on your network. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-Z. | |
| DHCP Pool Config | From the Global Config mode, enter ip dhcp pool. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-Z. |
| DHCPv6 Pool Config | From the Global Config mode, enter ip dhcpv6 pool. | To exit to the Global Config mode, enter exit. To return to the Privileged EXEC mode, enter Ctrl-Z. |
| Stack Global Config Mode | From the Global Config mode, enter the stack command. | To exit to the Global Config mode, enter the exit command. To return to the Privileged EXEC mode, enter Ctrl-Z. |
| ARP Access-List Config Mode | From the Global Config mode, enter the arp access-list command. | To exit to the Global Config mode, enter the exit command. To return to the Privileged EXEC mode, enter Ctrl-Z. |
Command Completion and Abbreviation
Command completion finishes spelling the command when you type enough letters of a command to uniquely identify the command keyword. Once you have entered enough letters, press the SPACEBAR or TAB key to complete the word.
Command abbreviation allows you to execute a command when you have entered there are enough letters to uniquely identify the command. You must enter all of the required keywords and parameters before you enter the command.
CLI Error Messages
If you enter a command and the system is unable to execute it, an error message appears. Table 7 describes the most common CLI error messages.
Table 7. CLI Error Messages
| Message Text Description | |
| % Invalid input detected at '^' marker. Ind | icates that you entered an incorrect or unavailable command.The carat (^) shows where the invalid text is detected. Thismessage also appears if any of the parameters or values are notrecognized. |
| Command not found / Incompletecommand. Use ? to list commands. | Indicates that you did not enter the required keywords or values. |
| Ambiguous command Indicates that you did not enter enough letters to uniquely identifythe command. | |
CLI Line-Editing Conventions
Table 8 describes the key combinations you can use to edit commands or increase the speed of command entry. You can access this list from the CLI by entering help from the User or Privileged EXEC modes.
Table 8. CLI Editing Conventions
| Key Sequence Description | |
| DEL or Backspace Delete previous character | |
| Ctrl-A Go to beginning of line | |
| Ctrl-E Go to end of line | |
| Ctrl-F Go forward one character | |
| Ctrl-B Go backward one character | |
| Ctrl-D Delete current character | |
| Ctrl-U, X Delete to beginning of line | |
| Ctrl-K Delete to end of line | |
| Ctrl-W Delete previous word | |
| Ctrl-T Transpose previous character | |
| Ctrl-P Go to previous line in history buffer | |
| Ctrl-R Rewrites or pastes the line | |
| Ctrl-N Go to next line in history buffer | |
| Ctrl-Y Prints last deleted character | |
| Ctrl-Q Enables serial flow | |
| Ctrl-S Disables serial flow | |
| Ctrl-Z Return to root command prompt | |
| Tab,Command-line completion | |
| Exit Go to next lower command prompt | |
| ? List available commands, keywords, or parameters |
Using CLI Help
Enter a question mark (?) at the command prompt to display the commands available in the current mode.
(switch) >?
enable Enter into user privilege mode.
help Display help for various special keys.
logout Exit this session. Any unsaved changes are lost.
ping Send ICMP echo packets to a specified IP address.
quit Exit this session. Any unsaved changes are lost.
show Display Switch Options and Settings.
telnet Telnet to a remote host.
Enter a question mark (?) after each word you enter to display available command keywords or parameters.
(switch) #network ?
javamode Enable/Disable.
mgmt_vlan Configure the Management VLAN ID of the switch.
parms Configure Network Parameters of the router.
protocol Select DHCP, BootP, or None as the network config protocol.
If the help output shows a parameter in angle brackets, you must replace the parameter with a value.
(switch) #network parms ?
<ipaddr> Enter the IP address.
If there are no additional command keywords or parameters, or if additional parameters are optional, the following message appears in the output:
You can also enter a question mark (?) after typing one or more characters of a word to list the available command or parameters that begin with the letters, as shown in the following example:
(switch) #show m?
mac-addr-table mac-address-table monitor
Accessing the CLI
You can access the CLI by using a direct console connection or by using a telnet or SSH connection from a remote management host.
For the initial connection, you must use a direct connection to the console port. You cannot access the system remotely until the system has an IP address, subnet mask, and default gateway. You can set the network configuration information manually, or you can configure the system to accept these settings from a BOOTP or DHCP server on your network. For more information, see “Network Interface Commands” on page 10-4.
Chapter 2
Stacking Commands
The Stacking Commands chapter includes the following sections:
- “Dedicated Port Stacking” on page 2-1
- “Front Panel Stacking Commands” on page 2-10

Note: The commands in this chapter are in one of two functional groups:
Note: Show commands display switch settings, statistics, and other information.
Note: Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.

The Primary Management Unit is the unit that controls the stack.
Dedicated Port Stacking
This section describes the commands you use to configure dedicated port stacking.
stack
This command sets the mode to Stack Global Config.
Format stack
Mode Global Config
member
This command configures a switch. The
Format member
Mode Stack Global Config

Note: Switch index can be obtained by executing the show supported switchtype command in User EXEC mode.
no member
This command removes a switch from the stack. The
Format no member
Mode Stack Global Config
switch priority
This command configures the ability of a switch to become the Primary Management Unit. The
Default enabled
Format switch
Mode Global Config
switch renumber
This command changes the switch identifier for a switch in the stack. The

Note: If the management unit is renumbered, then the running configuration is no longer applied (i.e. the stack acts as if the configuration had been cleared)
Format switch
Mode Global Config
movemanagement
This command moves the Primary Management Unit functionality from one switch to another. The
Format movemanagement
Mode Stack Global Config
slot
This command configures a slot in the system. The
Format slot
Mode Global Config

Note: Card index can be obtained by executing show supported cardtype command in User EXEC mode.
no slot
This command removes configured information from an existing slot in the system.
Format no slot
Mode Global Config

Note: Card index can be obtained by executing show supported cardtype command in User EXEC mode.
set slot disable
This command configures the administrative mode of the slot(s). If you specify [all], the command is applied to all slots, otherwise the command is applied to the slot identified by
If a card or other module is present in the slot, this administrative mode will effectively be applied to the contents of the slot. If the slot is empty, this administrative mode will be applied to any module that is inserted into the slot. If a card is disabled, all the ports on the device are operationally disabled and shown as “unplugged” on management screens.
Format set slot disable [
Mode Global Config
no set slot disable
This command unconfigures the administrative mode of the slot(s). If you specify [all], the command removes the configuration from all slots, otherwise the configuration is removed from the slot identified by
If a card or other module is present in the slot, this administrative mode removes the configuration from the contents of the slot. If the slot is empty, this administrative mode removes the configuration from any module inserted into the slot. If a card is disabled, all the ports on the device are operationally disabled and shown as “unplugged” on management screens.
Format no set slot disable [
Mode Global Config
set slot power
This command configures the power mode of the slot(s) and allows power to be supplied to a card located in the slot. If you specify [all], the command is applied to all slots, otherwise the command is applied to the slot identified by
Use this command when installing or removing cards. If a card or other module is present in this slot, the power mode is applied to the contents of the slot. If the slot is empty, the power mode is applied to any card inserted into the slot.
Format set slot power [
Mode Global Config
no set slot power
This command unconfigures the power mode of the slot(s) and prohibits power from being supplied to a card located in the slot. If you specify [all], the command prohibits power to all slots, otherwise the command prohibits power to the slot identified by
Use this command when installing or removing cards. If a card or other module is present in this slot, power is prohibited to the contents of the slot. If the slot is empty, power is prohibited to any card inserted into the slot.
Format no set slot power [
Mode Global Config
reload (Stack)
This command resets the entire stack or the identified
Format reload [
Mode User EXEC
show slot
This command displays information about all the slots in the system or for a specific slot.
Format show slot [
Mode User EXEC
| Term Definition | |
| Slot The slot identifier in aformat. | |
| Slot Status The slot is empty, full, or has encountered an error | |
| Admin State The slot administrative mode is enabled or disabled. | |
| Power State The slot power mode is enabled or disabled. | |
| Configured Card Model Identifier | The model identifier of the card preconfigured in the slot. Model Identifier is a 32-character field used to identify a card. |
| Pluggable Cards are pluggable or non-pluggable in the slot. | |
| Power Down Indicates whether the slot can be powered down. | |
If you supply a value for
| Term Definition | |
| Inserted Card Model Identifier | The model identifier of the card inserted in the slot. Model Identifier is a 32-character field used to identify a card. This field is displayed only if the slot is full. |
| Inserted Card Description | The card description. This field is displayed only if the slot is full. |
| Configured Card Description | The card description of the card preconfigured in the slot. |
show supported cardtype
This commands displays information about all card types or specific card types supported in the system.
Format show supported cardtype [
Mode User EXEC
If you do not supply a value for
| Term Definition | |
| Card Index (CID) | The index into the database of the supported card types. This index is used when preconfiguring a slot. |
| Card Model Identifier | The model identifier for the supported card type. |
If you supply a value for
| Term Definition | |
| Card Type The 32-bit numeric card type for the supported card. | |
| Model Identifier The model identifier for the supported card type. | |
| Card Description The description for the supported card type. | |
show switch
This command displays information about all units in the stack or a single unit when you specify the unit value.
Format show switch [
Mode Privileged EXEC
| Term Definition | |
| Switch The unit identifier assigned to the switch. | |
When you do not specify a value for
| Term Definition | |
| Management Status | Indicates whether the switch is the Primary Management Unit, a stack member, or the status is unassigned. |
| Preconfigured Model Identifier | The model identifier of a preconfigured switch ready to join the stack. The Model Identifier is a 32-character field assigned by the device manufacturer to identify the device. |
| Plugged-In Model Identifier | The model identifier of the switch in the stack. Model Identifier is a 32-character field assigned by the device manufacturer to identify the device. |
| Switch Status The switch status. Possible values for this state are: OK, Unsup ported, Code Mismatch, Config Mismatch, or Not Present. | |
| Code Version The detected version of code on this switch. | |
When you specify a value for
| Term Definition | |
| Management Status | Indicates whether the switch is the Primary Management Unit, a stack member, or the status is unassigned. |
| Hardware Management Preference | The hardware management preference of the switch. The hardware management preference can be disabled or unassigned. |
| Admin Management Preference | The administrative management preference value assigned to the switch. This preference value indicates how likely the switch is to be chosen as the Primary Management Unit. |
| Switch Type The 32-bit numeric switch type. | |
| Model Identifier | The model identifier for this switch. Model Identifier is a 32-character field assigned by the device manufacturer to identify the device. |
| Switch Status The switch status. Possible values are OK, Unsupported, Code Mismatch, Config Mismatch, or Not Present. | |
| Switch Description | The switch description. |
| Expected Code Version | The expected code version. |
| Detected Code Version | The version of code running on this switch. If the switch is not present and the data is from pre-configuration, then the code version is “None”. |
| Detected Code in Flash | The version of code that is currently stored in FLASH memory on the switch. This code executes after the switch is reset. If the switch is not present and the data is from pre-configuration, then the code version is “None”. |
| Up Time The system up time. | |
show supported switchtype
This commands displays information about all supported switch types or a specific switch type.
Format show supported switchtype [
Mode User EXEC
Privileged EXEC
If you do not supply a value for
| Term Definition | |
| Switch Index (SID) | The index into the database of supported switch types. This index is used when preconfiguring a member to be added to the stack. |
| Model Identifier The model identifier for the supported switch type. | |
| Management Preference | The management preference value of the switch type. |
| Code Version The code load target identifier of the switch type. | |
If you supply a value for
| Term Definition | |
| Switch Type The 32-bit numeric switch type for the supported switch. | |
| Model Identifier The model identifier for the supported switch type. | |
| Switch Description | The description for the supported switch type. |
Front Panel Stacking Commands
This section describes the commands you use to view and configure front panel stacking information.
stack-port
This command sets front panel stacking per port to either stack or ethernet mode.
Default stack
Format stack-port
Mode Stack Global Config
show stack-port
This command displays summary stack-port information for all interfaces.
Format show stack-port
Mode Privileged EXEC
| Term Definition | |
| QOS Mode Front Panel Stacking QOS Mode for all Interfaces. | |
For Each Interface:
| Term Definition | |
| Unit The unit number. | |
| Interface The slot and port numbers. | |
| Configured Stack Mode | Stack or Ethernet. |
| Running Stack Mode | Stack or Ethernet. |
| Link Status Status of the link. | |
| Link Speed Speed (Gbps) of the stack port link. | |
show stack-port counters
This command displays summary data counter information for all interfaces.
Table 9:
Format show stack-port counters
Mode Privileged EXEC
| Term Definition | |
| Unit The unit number. | |
| Interface The slot and port numbers. | |
| Tx Data Rate Trashing data rate in megabits per second on the stacking port. | |
| Tx Error Rate Platform-specific number of transmit errors per second. | |
| Tx Total Error Platform-specific number of total transmit errors since power-up. | |
| Rx Data Rate Receive data rate in megabits per second on the stacking port. | |
| Rx Error Rate Platform-specific number of receive errors per second. | |
| Rx Total Errors Platform-specific number of total receive errors since power-up. | |
show stack-port diag
This command shows front panel stacking diagnostics for each port and is only intended for Field Application Engineers (FAEs) and developers. An FAE will advise on the necessity to run this command and capture this information.
Format show stack-port diag
Mode Privileged EXEC
| Term Definition | |
| Unit The unit number. | |
| Interface The slot and port numbers. | |
| Diagnostic Entry1 80 character string used for diagnostics. | |
| Diagnostic Entry2 80 character string used for diagnostics. | |
| Diagnostic Entry3 80 character string used for diagnostics. | |
Chapter 3
Switching Commands
This chapter describes the switching commands available in the managed switch CLI.
The Switching Commands chapter includes the following sections:
- “Port Configuration Commands” on page 3-2
- “show port description” on page 3-9
- “VLAN Commands” on page 3-31
- “Double VLAN Commands” on page 3-46
• “Voice VLAN Commands” on page 3-48 - “Provisioning (IEEE 802.1p) Commands” on page 3-51
- “Protected Ports Commands” on page 3-52
- “Private Group Commands” on page 3-54
• “GVRP Commands” on page 3-59 - “GMRP Commands” on page 3-61
- “Port-Based Network Access Control Commands” on page 3-64
- “Storm-Control Commands” on page 3-78
- “Port-Channel/LAG (802.3ad) Commands” on page 3-90
- “Port Mirroring” on page 3-113
- “Static MAC Filtering” on page 3-115
- “DHCP Snooping Configuration Commands” on page 3-120
- “Dynamic ARP Inspection Commands” on page 3-131
- “IGMP Snooping Configuration Commands” on page 3-139
- “IGMP Snooping Querier Commands” on page 3-148
- “MLD Snooping Commands” on page 3-153
-
“MLD Snooping Querier Commands” on page 3-162
-
“Port Security Commands” on page 3-166
- “LLDP (802.1AB) Commands” on page 3-170
- “LLDP-MED Commands” on page 3-181
- “Denial of Service Commands” on page 3-192
- “MAC Database Commands” on page 3-204
- “ISDP Commands” on page 3-206

Warning: The commands in this chapter are in one of three functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Clear commands clear some or all of the settings to factory defaults.
Port Configuration Commands
This section describes the commands you use to view and configure port settings.
interface
This command gives you access to the Interface Config mode, which allows you to enable or modify the operation of an interface (port).
Format interface
Mode Global Config
interface range
This command gives you access to a range of port interfaces, allowing the same port configuration to be applied to a set of ports.
Format interface range
Mode Global Config
interface vlan
This command gives you access to the vlan virtual interface mode, which allows certain port configurations (for example, the IP address) to be applied to the VLAN interface. Type a question mark (?) after entering the interface configuration mode to see the available options.
Format interface vlan
Mode Global Config
interface lag
This command gives you access to the LAG (link aggregation, or port channel) virtual interface, which allows certain port configurations to be applied to the LAG interface. Type a question mark (?) after entering the interface configuration mode to see the available options.

Note: The IP address cannot be assigned to a LAG virtual interface. The interface must be put under a VLAN group and an IP address assigned to the VLAN group..
Format interface lag
Mode Global Config
auto-negotiate
This command enables automatic negotiation on a port.
Default enabled
Format auto-negotiate
Mode Interface Config
no auto-negotiate
This command disables automatic negotiation on a port.

Note: Automatic sensing is disabled when automatic negotiation is disabled.
auto-negotiate all
Format no auto-negotiate
Mode Interface Config
This command enables automatic negotiation on all ports.
Default enabled
Format auto-negotiate all
Mode Global Config
no auto-negotiate all
This command disables automatic negotiation on all ports.
Format no auto-negotiate all
Mode Global Config
description
Use this command to create an alpha-numeric description of the port.
Format description
Mode Interface Config
mtu
Use the mtu command to set the maximum transmission unit (MTU) size, in bytes, for frames that ingress or egress the interface. You can use the mtu command to configure jumbo frame support for physical and port-channel (LAG) interfaces. For the standard 7000 series implementation, the MTU size is a valid integer between 1522 - 9216 for tagged packets and a valid integer between 1518 - 9216 for untagged packets.

Note: To receive and process packets, the Ethernet MTU must include any extra bytes that Layer-2 headers might require. To configure the IP MTU size, which is the maximum size of the IP packet (IP Header + IP payload), see “ip mtu” on page 4-12.
Default 1518 (untagged)
Format mtu <1518-9216>
Mode Interface Config
no mtu
This command sets the default MTU size (in bytes) for the interface.
Format no mtu
Mode Interface Config
shutdown
This command disables a port.

Note: You can use the shutdown command on physical and port-channel (LAG) interfaces, but not on VLAN routing interfaces.
Default enabled
Format shutdown
Mode Interface Config
no shutdown
This command enables a port.
Format no shutdown
Mode Interface Config
shutdown all
This command disables all ports.

Note: You can use the shutdown all command on physical and port-channel (LAG) interfaces, but not on VLAN routing interfaces.
Default enabled
Format shutdown all
Mode Global Config
no shutdown all
This command enables all ports.
Format no shutdown all
Mode Global Config
speed
This command sets the speed and duplex setting for the interface.
Format speed {<100 | 10>
Mode Interface Config
| Acceptable Values | Definition |
| 100h 100BASE-T half duplex | |
| 100f 100BASE-T full duplex | |
| 10h 10BASE-T half duplex | |
| 10f 10BASE-T full duplex | |
speed all
This command sets the speed and duplex setting for all interfaces.
Format speed all {<100 | 10>
Mode Global Config
| Acceptable Values | Definition |
| 100h 100BASE-T half duplex | |
| 100f 100BASE-T full duplex | |
| 10h 10BASE-T half duplex | |
| 10f 10BASE-T full duplex | |
show port
This command displays port information.
Format show port {
Mode Privileged EXEC
| Term Definition | |
| Interface Valid unit, | slot, and port number separated by forward slashes. |
| Type If not blank, this field indicates that this port is a special type of port. The possible values are:Mirror- this port is a monitoring port. For more information, see “Port Mirroring” on page 3-113.PC Mbr- this port is a member of a port-channel (LAG).Probe- this port is a probe port. | |
| Admin Mode | The Port control administration state. The port must be enabled in order for it to be allowed into the network. - May be enabled or disabled. The factory default is enabled. |
| Physical Mode | The desired port speed and duplex mode. If auto-negotiation support is selected, then the duplex mode and speed is set from the auto-negotiation process. Note that the maximum capability of the port (full duplex -100M) is advertised. Otherwise, this object determines the port's duplex mode and transmission rate. The factory default is Auto. |
| Physical Status The port speed and duplex mode. | |
| Link Status The Link is up or down. | |
| Link Trap | This object determines whether or not to send a trap when link status changes. The factory default is enabled. |
| LACP Mode LACP is enabled or disabled on this port. | |
show port protocol
This command displays the Protocol-Based VLAN information for either the entire system, or for the indicated group.
Format show port protocol {
Mode Privileged EXEC
| Term Definition | |
| Group Name The group name of an entry in the Protocol-based VLAN table. | |
| Group ID The group identifier of the protocol group. | |
| Protocol(s) The type of protocol(s) for this group. | |
| VLAN The VLAN associated with this Protocol Group. | |
| Interface(s) | Lists the unit/slot/port interface(s) that are associated with this Protocol Group. |
show port description
This command displays the port description for every port.
Format show port description
Mode Privileged EXEC
| Term Definition | |
| Interface Valid slot and port number separated by forward slashes | |
| Description Shows the port description configured via the “description” command | |
show port status
This command displays the Protocol-Based VLAN information for either the entire system, or for the indicated group.
Format show port status {
Mode Privileged EXEC
| Term Definition | |
| Interface Valid slot and port number separated by forward slashes. | |
| Media Type “Copper” or “Fiber” for combo port. | |
| STP Mode Indicate the spanning tree mode of the port. | |
| Physical Mode Either “Auto” or fixed speed and duplex mode. | |
| Physical Status The actual speed and duplex mode. | |
| Link Status Whether the link is Up or Down. | |
| Loop Status Whether the port is in loop state or not. | |
| Partner Flow Control | Whether the remote side is using flow control or not. |
Spanning Tree Protocol (STP) Commands
This section describes the commands you use to configure Spanning Tree Protocol (STP). STP helps prevent network loops, duplicate messages, and network instability.
spanning-tree
This command sets the spanning-tree operational mode to enabled.
Default enabled
Format spanning-tree
Mode Global Config
no spanning-tree
This command sets the spanning-tree operational mode to disabled. While disabled, the spanning-tree configuration is retained and can be changed, but is not activated.
Format no spanning-tree
Mode Global Config
spanning-tree bpdufilter default
Use this command to enable BPDU Filter on all the edge port interfaces.
Default disabled
Format spanning-tree bpdufilter
Mode Global Config
no spanning-tree bpdufilter default
Use this command to disable BPDU Filter on all the edge port interfaces.
Default enabled
Format no spanning-tree bpdufilter default
Mode Global Config
spanning-tree bpduflood
Use this command to enable BPDU Flood on the interface.
Default disabled
Format spanning-tree bpduflood
Mode Interface Config
no spanning-tree bpduflood
Use this command to disable BPDU Flood on the interface.
Default enabled
Format no spanning-tree bpduflood
Mode Interface Config
spanning-tree bpduguard
Use this command to enable BPDU Guard on the switch.
Format spanning-tree bpduguard
Mode Global Config
no spanning-tree bpduguard
Use this command to disable BPDU Guard on the switch.
Default disabled
Format no spanning-tree bpduguard
Mode Global Config
spanning-tree bpdumigrationcheck
Use this command to force a transmission of rapid spanning tree (RSTP) and multiple spanning tree (MSTP) BPDUs. Use the
Format spanning-tree bpdumigrationcheck {
Mode Global Config
spanning-tree configuration name
This command sets the Configuration Identifier Name for use in identifying the configuration that this switch is currently using. The
Default base MAC address in hexadecimal notation
Format spanning-tree configuration name
Mode Global Config
no spanning-tree configuration name
This command resets the Configuration Identifier Name to its default.
Format no spanning-tree configuration name
Mode Global Config
spanning-tree configuration revision
This command sets the Configuration Identifier Revision Level for use in identifying the configuration that this switch is currently using. The Configuration Identifier Revision Level is a number in the range of 0 to 65535.
Default 0
Format spanning-tree configuration revision <0-65535>
Mode Global Config
no spanning-tree configuration revision
This command sets the Configuration Identifier Revision Level for use in identifying the configuration that this switch is currently using to the default value.
Format no spanning-tree configuration revision
Mode Global Config
spanning-tree edgeport
This command specifies that this port is an Edge Port within the common and internal spanning tree. This allows this port to transition to Forwarding State without delay.
Default enabled
Format spanning-tree edgeport
Mode Interface Config
no spanning-tree edgeport
This command specifies that this port is not an Edge Port within the common and internal spanning tree.
Format no spanning-tree edgeport
Mode Interface Config
spanning-tree forceversion
This command sets the Force Protocol Version parameter to a new value.
Default 802.1s
Format spanning-tree forceversion <802.1d | 802.1s | 802.1w>
Mode Global Config
- Use 802.1d to specify that the switch transmits ST BPDUs rather than MST BPDUs (IEEE 802.1d functionality supported).
- Use 802.1s to specify that the switch transmits MST BPDUs (IEEE 802.1s functionality supported).
- Use 802.1w to specify that the switch transmits RST BPDUs rather than MST BPDUs (IEEE 802.1w functionality supported).
no spanning-tree forceversion
This command sets the Force Protocol Version parameter to the default value.
Format no spanning-tree forceversion
Mode Global Config
spanning-tree forward-time
This command sets the Bridge Forward Delay parameter to a new value for the common and internal spanning tree. The forward-time value is in seconds within a range of 4 to 30, with the value being greater than or equal to “(Bridge Max Age / 2) + 1”.
Default 15
Format spanning-tree forward-time <4-30>
Mode Global Config
no spanning-tree forward-time
This command sets the Bridge Forward Delay parameter for the common and internal spanning tree to the default value.
Format no spanning-tree forward-time
Mode Global Config
spanning-tree guard
This command selects whether loop guard or root guard is enabled on an interface. If neither is enabled, then the port operates in accordance with the multiple spanning tree protocol.
Default none
Format spanning-tree guard { none | root | loop }
Mode Interface Config
no spanning-tree guard
This command disables loop guard or root guard on the interface.
Format no spanning-tree guard
Mode Interface Config
spanning-tree max-age
This command sets the Bridge Max Age parameter to a new value for the common and internal spanning tree. The max-age value is in seconds within a range of 6 to 40, with the value being less than or equal to 2 x (Bridge Forward Delay - 1).
Default 20
Format spanning-tree max-age <6-40>
Mode Global Config
no spanning-tree max-age
This command sets the Bridge Max Age parameter for the common and internal spanning tree to the default value.
Format no spanning-tree max-age
Mode Global Config
spanning-tree max-hops
This command sets the MSTP Max Hops parameter to a new value for the common and internal spanning tree. The max-hops value is a range from 6 to 40.
Default 20
Format spanning-tree max-hops <1-127>
Mode Global Config
no spanning-tree max-hops
This command sets the Bridge Max Hops parameter for the common and internal spanning tree to the default value.
Format no spanning-tree max-hops
Mode Global Config
spanning-tree mst
This command sets the Path Cost or Port Priority for this port within the multiple spanning tree instance or in the common and internal spanning tree. If you specify an
If you specify the cost option, the command sets the path cost for this port within a multiple spanning tree instance or the common and internal spanning tree instance, depending on the
If you specify the external-cost option, this command sets the external-path cost for MST instance '0' i.e. CIST instance. You can set the external cost as a number in the range of 1 to 200000000 or auto. If you specify auto, the external path cost value is set based on Link Speed.
If you specify the port-priority option, this command sets the priority for this port within a specific multiple spanning tree instance or the common and internal spanning tree instance, depending on the
Default • cost—auto
• external-cost—auto
• port-priority—128
Format spanning-tree mst <mstid> {{cost <1-200000000> | auto} | {external-cost <1-200000000> | auto} | port-priority <0-240>}
Mode Interface Config
no spanning-tree mst
This command sets the Path Cost or Port Priority for this port within the multiple spanning tree instance, or in the common and internal spanning tree to the respective default values. If you specify an
If the you specify cost, this command sets the path cost for this port within a multiple spanning tree instance or the common and internal spanning tree instance, depending on the
If you specify external-cost, this command sets the external path cost for this port for mst '0' instance, to the default value, i.e. a path cost value based on the Link Speed.
If you specify port-priority, this command sets the priority for this port within a specific multiple spanning tree instance or the common and internal spanning tree instance, depending on the
Format no spanning-tree mst
Mode Interface Config
spanning-tree mst instance
This command adds a multiple spanning tree instance to the switch. The parameter
Default none
Format spanning-tree mst instance
Mode Global Config
no spanning-tree mst instance
This command removes a multiple spanning tree instance from the switch and reallocates all VLANs allocated to the deleted instance to the common and internal spanning tree. The parameter
Format no spanning-tree mst instance
Mode Global Config
spanning-tree mst priority
This command sets the bridge priority for a specific multiple spanning tree instance. The parameter
If you specify 0 (defined as the default CIST ID) as the
Default 32768
Format spanning-tree mst priority
Mode Global Config
no spanning-tree mst priority
This command sets the bridge priority for a specific multiple spanning tree instance to the default value. The parameter
If 0 (defined as the default CIST ID) is passed as the
Format no spanning-tree mst priority
Mode Global Config
spanning-tree mst vlan
This command adds an association between a multiple spanning tree instance and one or more VLANs so that the VLAN(s) are no longer associated with the common and internal spanning tree. The parameter
Format spanning-tree mst vlan
Mode Global Config
no spanning-tree mst vlan
This command removes an association between a multiple spanning tree instance and one or more VLANs so that the VLAN(s) are again associated with the common and internal spanning tree.
Format no spanning-tree mst vlan
spanning-tree port mode
This command sets the Administrative Switch Port State for this port to enabled.
Default disabled
Format spanning-tree port mode
Mode Interface Config
no spanning-tree port mode
This command sets the Administrative Switch Port State for this port to disabled.
Format no spanning-tree port mode
Mode Interface Config
spanning-tree port mode all
This command sets the Administrative Switch Port State for all ports to enabled.
Default disabled
Format spanning-tree port mode all
Mode Global Config
no spanning-tree port mode all
This command sets the Administrative Switch Port State for all ports to disabled.
Format no spanning-tree port mode all
Mode Global Config
spanning-tree edgeport all
This command specifies that every port is an Edge Port within the common and internal spanning tree. This allows all ports to transition to Forwarding State without delay.
Format spanning-tree edgeport all
Mode Global Config
no spanning-tree edgeport all
This command disables Edge Port mode for all ports within the common and internal spanning tree.
Format no spanning-tree edgeport all
Mode Global Config
spanning-tree bpduforwarding
Normally a switch will not forward Spanning Tree Protocol (STP) BPDU packets if STP is disabled. However, if in some network setup, the user wishes to forward BDPU packets received from other network devices, this command can be used to enable the forwarding.
Default 2
Format spanning-tree bpduforwarding
Mode Global Config
no spanning-tree bpduforwarding
This command will cause the STP BPDU packets received from the network to be dropped if STP is disabled.
Format no spanning-tree bpduforwarding
Mode Global Config
show spanning-tree
This command displays spanning tree settings for the common and internal spanning tree. The following details are displayed.
Format show spanning-tree
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Bridge Priority | Specifies the bridge priority for the Common and Internal Spanning tree (CST). The value lies between 0 and 61440. It is displayed in multiples of 4096. |
| Bridge Identifier | The bridge identifier for the CST. It is made up using the bridge priority and the base MAC address of the bridge. |
| Time Since Topology Change | Time in seconds. |
| Topology Change Count | Number of times changed. |
| Topology Change | Boolean value of the Topology Change parameter for the switch indicating if a topology change is in progress on any port assigned to the common and internal spanning tree. |
| Designated Root | The bridge identifier of the root bridge. It is made up from the bridge priority and the base MAC address of the bridge. |
| Root Path Cost Value | Value of the Root Path Cost parameter for the common and internal spanning tree. |
| Root Port Identifier | Identifier of the port to access the Designated Root for the CST |
| Root Port Max Age | Derived value. |
| Root Port Bridge Forward Delay | Derived value. |
| Hello Time Configured value of the parameter for the CST. | |
| Bridge Hold Time | Minimum time between transmission of Configuration Bridge Protocol Data Units (BPDUs). |
| Bridge Max Hops | Bridge max-hops count for the device. |
| CST Regional Root | Bridge Identifier of the CST Regional Root. It is made up using the bridge priority and the base MAC address of the bridge. |
| Regional Root Path Cost | Path Cost to the CST Regional Root. |
| Associated FIDs | List of forwarding database identifiers currently associated with this instance. |
| Associated VLANs | List of VLAN IDs currently associated with this instance. |
show spanning-tree brief
This command displays spanning tree settings for the bridge. The following information appears.
Format show spanning-tree brief
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Bridge Priority Configured | value. |
| Bridge Identifier The bridge | identifier for the selected MST instance. It is made up using thebridge priority and the base MAC address of the bridge. |
| Bridge Max Age Configured | value. |
| Bridge Max Hops Bridge | max-hops count for the device. |
| Bridge Hello Time Configured | value. |
| Bridge Forward Delay Configured | value. |
| Bridge Hold Time Minimum | time between transmission of Configuration Bridge Protocol DataUnits (BPDUs). |
show spanning-tree interface
This command displays the settings and parameters for a specific switch port within the common and internal spanning tree. The
Format show spanning-tree interface
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Hello Time Admin hello time for this port. | |
| Port Mode Enabled or disabled. | |
| BPDU Guard Effect Enabled or disabled. | |
| Root Guard Enabled or disabled. | |
| Loop Guard Enabled or disabled. | |
| TCN Guard Enable or disable the propagation of received topology change notifications and topology changes to other ports. | |
| BPDU Filter Mode Enabled or disabled. | |
| BPDU Flood Mode Enabled or disabled. | |
| Auto Edge To enable or disable the feature that causes a port that has not seen a BPDU for ‘edge delay’ time, to become an edge port and transition to forwarding faster. | |
| Port Up Time Since Counters Last Cleared | Time since port was reset, displayed in days, hours, minutes, and seconds. |
| STP BPDUs Transmitted | Spanning Tree Protocol Bridge Protocol Data Units sent. |
| STP BPDUs Received Spanning Tree Protocol Bridge Protocol Data Units received. | |
| RSTP BPDUs Transmitted | Rapid Spanning Tree Protocol Bridge Protocol Data Units sent. |
| RSTP BPDUs Received Rapid Spanning Tree Protocol Bridge Protocol Data Units received. | |
| MSTP BPDUs Transmitted | Multiple Spanning Tree Protocol Bridge Protocol Data Units sent. |
| MSTP BPDUs Received | Multiple Spanning Tree Protocol Bridge Protocol Data Units received. |
show spanning-tree mst port detailed
This command displays the detailed settings and parameters for a specific switch port within a particular multiple spanning tree instance. The parameter
Format show spanning-tree mst port detailed
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| MST Instance ID | The ID of the existing MST instance. |
| Port Identifier | The port identifier for the specified port within the selected MST instance. It is made up from the port priority and the interface number of the port. |
| Port Priority | The priority for a particular port within the selected MST instance. The port priority is displayed in multiples of 16. |
| Port Forwarding State | Current spanning tree state of this port. |
| Port Role | Each enabled MST Bridge Port receives a Port Role for each spanning tree. The port role is one of the following values: Root Port, Designated Port, Alternate Port, Backup Port, Master Port or Disabled Port |
| Auto-Calculate Port Path Cost | Indicates whether auto calculation for port path cost is enabled. |
| Port Path Cost | Configured value of the Internal Port Path Cost parameter. |
| Designated Root | The Identifier of the designated root for this port. |
| Root Path Cost | The path cost to get to the root bridge for this instance. The root path cost is zero if the bridge is the root bridge for that instance. |
| Designated Bridge | Bridge Identifier of the bridge with the Designated Port. |
| Designated Port Identifier | Port on the Designated Bridge that offers the lowest cost to the LAN. |
| Loop Inconsistent State | The current loop inconsistent state of this port in this MST instance. When in loop inconsistent state, the port has failed to receive BPDUs while configured with loop guard enabled. Loop inconsistent state maintains the port in a "blocking" state until a subsequent BPDU is received. |
| Transitions Into Loop Inconsistent State | The number of times this interface has transitioned into loop inconsistent state. |
| Transitions Out of Loop Inconsistent State | The number of times this interface has transitioned out of loop inconsistent state. |
If you specify 0 (defined as the default CIST ID) as the
| Term Definition | |
| Port Identifier The port identifier for this port within the CST. | |
| Port Priority The priority of the port within the CST. | |
| Port Forwarding State | The forwarding state of the port within the CST. |
| Port Role The role of the specified interface within the CST. | |
| Auto-Calculate Port Path Cost | Indicates whether auto calculation for port path cost is enabled or not (disabled). |
| Port Path Cost The configured path cost for the specified interface. | |
| Auto-Calculate External Port Path Cost | Indicates whether auto calculation for external port path cost is enabled. |
| External Port Path Cost | The cost to get to the root bridge of the CIST across the boundary of the region. This means that if the port is a boundary port for an MSTP region, then the external path cost is used. |
| Designated Root | Identifier of the designated root for this port within the CST. |
| Root Path Cost The root path cost to the LAN by the port. | |
| Designated Bridge | The bridge containing the designated port. |
| Designated Port Identifier | Port on the Designated Bridge that offers the lowest cost to the LAN. |
| Topology Change Acknowledgement | Value of flag in next Configuration Bridge Protocol Data Unit (BPDU) transmission indicating if a topology change is in progress for this port. |
| Hello Time The hello time in use for this port. | |
| Edge Port The configured value indicating if this port is an edge port. | |
| Edge Port Status | The derived value of the edge port status. True if operating as an edge port; false otherwise. |
| Point To Point MAC Status | Derived value indicating if this port is part of a point to point link. |
| CST Regional Root | The regional root identifier in use for this port. |
| CST Internal Root Path Cost | The internal root path cost to the LAN by the designated external port. |
| Loop Inconsistent State | The current loop inconsistent state of this port in this MST instance. When in loop inconsistent state, the port has failed to receive BPDUs while configured with loop guard enabled. Loop inconsistent state maintains the port in a "blocking" state until a subsequent BPDU is received. |
| Transitions Into Loop Inconsistent State | The number of times this interface has transitioned into loop inconsistent state. |
| Transitions Out of Loop Inconsistent State | The number of times this interface has transitioned out of loop inconsistent state. |
show spanning-tree mst port summary
This command displays the settings of one or all ports within the specified multiple spanning tree instance. The parameter
If you specify 0 (defined as the default CIST ID) as the
Format show spanning-tree mst port summary
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| MST Instance ID | The MST instance associated with this port. |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| STP Mode Indicates whether spanning tree is enabled or disabled on the port. | |
| Type Currently not used. | |
| STP State The forwarding state of the port in the specified spanning tree instance. | |
| Port Role The role of the specified port within the spanning tree. | |
| Desc | Indicates whether the port is in loop inconsistent state or not. This field is blank if the loop guard feature is not available. |
show spanning-tree mst summary
This command displays summary information about all multiple spanning tree instances in the switch. On execution, the following details are displayed.
Format show spanning-tree mst summary
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| MST Instance ID List | List of multiple spanning trees IDs currently configured. |
| For each MSTID:• Associated FIDs• Associated VLANs | • List of forwarding database identifiers associated with this instance.• List of VLAN IDs associated with this instance. |
show spanning-tree summary
This command displays spanning tree settings and parameters for the switch. The following details are displayed on execution of the command.
Format show spanning-tree summary
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Spanning Tree Adminmode | Enabled or disabled. |
| Spanning Tree Version | Version of 802.1 currently supported (IEEE 802.1s, IEEE 802.1w, or IEEE 802.1d) based upon the Force Protocol Version parameter. |
| BPDU Guard Mode | Enabled or disabled. |
| BPDU Filter Mode | Enabled or disabled. |
| Configuration Name | Identifier used to identify the configuration currently being used. |
| Configuration Revision Level | Identifier used to identify the configuration currently being used. |
| Configuration Digest Key | A generated Key used in the exchange of the BPDUs. |
| Configuration Format Selector | Specifies the version of the configuration format being used in the exchange of BPDUs. The default value is zero. |
| MST Instances List of all multiple spanning tree instances configured on the switch. | |
show spanning-tree vlan
This command displays the association between a VLAN and a multiple spanning tree instance. The
Format show spanning-tree vlan
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| VLAN Identifier | The VLANs associated with the selected MST instance. |
| Associated Instance | Identifier for the associated multiple spanning tree instance or “CST” if associated with the common and internal spanning tree. |
VLAN Commands
This section describes the commands you use to configure VLAN settings.
vlan database
This command gives you access to the VLAN Config mode, which allows you to configure VLAN characteristics.
Format vlan database
Mode Privileged EXEC
network mgmt\_vlan
This command configures the Management VLAN ID.
Default 1
Format network mgmt_vlan <1-4093>
Mode Privileged EXEC
no network mgmt_vlan
This command sets the Management VLAN ID to the default.
Format no network mgmt_vlan
Mode Privileged EXEC
vlan
This command creates a new VLAN and assigns it an ID. The ID is a valid VLAN identification number (ID 1 is reserved for the default VLAN). The vlan-list contains VlanId's in range <1-4093>. Separate non-consecutive IDs with ',' and no spaces and no zeros in between the range; Use '-' for range.
Format vlan
Mode VLAN Config
no vlan
This command deletes an existing VLAN. The ID is a valid VLAN identification number (ID 1 is reserved for the default VLAN). The vlan-list contains VlanId's in range <1-4093>. Separate non-consecutive IDs with ',' and no spaces and no zeros in between the range; Use '-' for range.
Format no vlan
Mode VLAN Config
vlan acceptframe
This command sets the frame acceptance mode per interface. For VLAN Only mode, untagged frames or priority frames received on this interface are discarded. For Admit All mode, untagged frames or priority frames received on this interface are accepted and assigned the value of the interface VLAN ID for this port. With either option, VLAN tagged frames are forwarded in accordance with the IEEE 802.1Q VLAN Specification.
Default all
Format vlan acceptframe {vlanonly | all}
Mode Interface Config
no vlan acceptframe
This command resets the frame acceptance mode for the interface to the default value.
Format no vlan acceptframe
Mode Interface Config
vlan ingressfilter
This command enables ingress filtering. If ingress filtering is disabled, frames received with VLAN IDs that do not match the VLAN membership of the receiving interface are admitted and forwarded to ports that are members of that VLAN.
Default disabled
Format vlan ingressfilter
Mode Interface Config
no vlan ingressfilter
This command disables ingress filtering. If ingress filtering is disabled, frames received with VLAN IDs that do not match the VLAN membership of the receiving interface are admitted and forwarded to ports that are members of that VLAN.
Format no vlan ingressfilter
Mode Interface Config
vlan makestatic
This command changes a dynamically created VLAN (one that is created by GVRP registration) to a static VLAN (one that is permanently configured and defined). The ID is a valid VLAN identification number. VLAN range is 2-4093.
Format vlan makestatic <2-4093>
Mode VLAN Config
vlan name
This command changes the name of a VLAN. The name is an alphanumeric string of up to 32 characters, and the ID is a valid VLAN identification number. ID range is 1-4093.
Default • VLAN ID 1 - default
- other VLANS - blank string
Format vlan name <1-4093>
Mode VLAN Config
no vlan name
This command sets the name of a VLAN to a blank string.
Format no vlan name <1-4093>
Mode VLAN Config
vlan participation
This command configures the degree of participation for a specific interface in a VLAN. The ID is a valid VLAN identification number, and the interface is a valid interface number.
Format vlan participation {exclude | include | auto} <1-4093>
Mode Interface Config
Participation options are:
| Participation Options | Definition |
| include | The interface is always a member of this VLAN. This is equivalent to registration fixed. |
| exclude The interface | face is never a member of this VLAN. This is equivalent to registration forbidden. |
| auto The interface | is dynamically registered in this VLAN by GVRP. The interface will not participate in this VLAN unless a join request is received on this interface. This is equivalent to registration normal. |
vlan participation all
This command configures the degree of participation for all interfaces in a VLAN. The ID is a valid VLAN identification number.
Format vlan participation all {exclude | include | auto} <1-4093>
Mode Global Config
You can use the following participation options:
| Participation Options | Definition |
| include | The interface is always a member of this VLAN. This is equivalent to registration fixed. |
| exclude The interface | face is never a member of this VLAN. This is equivalent to registration forbidden. |
| auto The interface | is dynamically registered in this VLAN by GVRP. The interface will not participate in this VLAN unless a join request is received on this interface. This is equivalent to registration normal. |
vlan port acceptframe all
This command sets the frame acceptance mode for all interfaces.
Default all
Format vlan port acceptframe all {vlanonly | all}
Mode Global Config
The modes defined as follows:
| Mode Definition | |
| VLAN Only mode | Untagged frames or priority frames received on this interface are discarded. |
| Admit All mode | Untagged frames or priority frames received on this interface are accepted and assigned the value of the interface VLAN ID for this port. |
With either option, VLAN tagged frames are forwarded in accordance with the IEEE 802.1Q VLAN Specification.
no vlan port acceptframe all
This command sets the frame acceptance mode for all interfaces to Admit All. For Admit All mode, untagged frames or priority frames received on this interface are accepted and assigned the value of the interface VLAN ID for this port. With either option, VLAN tagged frames are forwarded in accordance with the IEEE 802.1Q VLAN Specification.
Format no vlan port acceptframe all
Mode Global Config
vlan port ingressfilter all
This command enables ingress filtering for all ports. If ingress filtering is disabled, frames received with VLAN IDs that do not match the VLAN membership of the receiving interface are admitted and forwarded to ports that are members of that VLAN.
Default disabled
Format vlan port ingressfilter all
Mode Global Config
no vlan port ingressfilter all
This command disables ingress filtering for all ports. If ingress filtering is disabled, frames received with VLAN IDs that do not match the VLAN membership of the receiving interface are admitted and forwarded to ports that are members of that VLAN.
Format no vlan port ingressfilter all
Mode Global Config
vlan port pvid all
This command changes the VLAN ID for all interface.
Default 1
Format vlan port pvid all <1-4093>
Mode Global Config
no vlan port pvid all
This command sets the VLAN ID for all interfaces to 1.
Format no vlan port pvid all
Mode Global Config
vlan port tagging all
This command configures the tagging behavior for all interfaces in a VLAN to enabled. If tagging is enabled, traffic is transmitted as tagged frames. If tagging is disabled, traffic is transmitted as untagged frames. The ID is a valid VLAN identification number.
Format vlan port tagging all <1-4093>
Mode Global Config
no vlan port tagging all
This command configures the tagging behavior for all interfaces in a VLAN to disabled. If tagging is disabled, traffic is transmitted as untagged frames. The ID is a valid VLAN identification number.
Format no vlan port tagging all
Mode Global Config
vlan protocol group
This command adds protocol-based VLAN groups to the system. The
Format vlan protocol group
Mode Global Config
vlan protocol group add protocol
This command adds the
Default none
Format vlan protocol group add protocol
Mode Global Config
no vlan protocol group add protocol
This command removes the
Format no vlan protocol group add protocol
Mode Global Config
vlan protocol group remove
This command removes the protocol-based VLAN group that is identified by this
Format vlan protocol group remove
Mode Global Config
protocol group
This command attaches a
Default none
Format protocol group
Mode VLAN Config
no protocol group
This command removes the
Format no protocol group
Mode VLAN Config
protocol vlan group
This command adds the physical interface to the protocol-based VLAN identified by
Default none
Format protocol vlan group
Mode Interface Config
no protocol vlan group
This command removes the interface from this protocol-based VLAN group that is identified by this
Format no protocol vlan group
Mode Interface Config
protocol vlan group all
This command adds all physical interfaces to the protocol-based VLAN identified by
Default none
Format protocol vlan group all
Mode Global Config
no protocol vlan group all
This command removes all interfaces from this protocol-based VLAN group that is identified by this
Format no protocol vlan group all
Mode Global Config
vlan pvid
This command changes the VLAN ID per interface.
Default 1
Format vlan pvid <1-4093>
Mode Interface Config
no vlan pvid
This command sets the VLAN ID per interface to 1.
Format no vlan pvid
Mode Interface Config
vlan tagging
This command configures the tagging behavior for a specific interface in a VLAN to enabled. If tagging is enabled, traffic is transmitted as tagged frames. If tagging is disabled, traffic is transmitted as untagged frames. The vlan-list contains VlanId's in range <1-4093>. Separate non-consecutive IDs with ',' and no spaces and no zeros in between the range; Use '-' for range.
Format vlan tagging
Mode Interface Config
no vlan tagging
This command configures the tagging behavior for a specific interface in a VLAN to disabled. If tagging is disabled, traffic is transmitted as untagged frames. The vlan-list contains VlanId's in range <1-4093>. Separate non-consecutive IDs with ',' and no spaces and no zeros in between the range; Use '-' for range.
Format no vlan tagging
Mode Interface Config
vlan association subnet
This command associates a VLAN to a specific IP-subnet.
Format vlan association subnet
Mode VLAN Config
no vlan association subnet
This command removes association of a specific IP-subnet to a VLAN.
Format no vlan association subnet
Mode VLAN Config
vlan association mac
This command associates a MAC address to a VLAN.
Format vlan association mac
Mode VLAN database
no vlan association mac
This command removes the association of a MAC address to a VLAN.
Format no vlan association mac
Mode VLAN database
show vlan
This command displays a list of all configured VLAN.
Format show vlan
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| VLAN ID There is | a VLAN Identifier (VID) associated with each VLAN. The range of the VLAN ID is 1 to 4093. |
| VLAN Name A string | ing associated with this VLAN as a convenience. It can be up to 32 alphanumeric characters long, including blanks. The default is blank. VLAN ID 1 always has a name of “Default.” This field is optional. |
| VLAN Type | Type of VLAN, which can be Default (VLAN ID = 1) or static (one that is configured and permanently defined), or Dynamic (one that is created by GVRP registration). |
show vlan
This command displays detailed information, including interface information, for a specific VLAN. The ID is a valid VLAN identification number.
Format show vlan
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| VLAN ID There is | a VLAN Identifier (VID) associated with each VLAN. The range of the VLAN ID is 1 to 3965. |
| VLAN Name A string | ing associated with this VLAN as a convenience. It can be up to 32 alphanumeric characters long, including blanks. The default is blank. VLAN ID 1 always has a name of “Default.” This field is optional. |
| VLAN Type | Type of VLAN, which can be Default (VLAN ID = 1) or static (one that is configured and permanently defined), or Dynamic (one that is created by GVRP registration). |
| Interface | Valid unit, slot, and port number separated by forward slashes. It is possible to set the parameters for all ports by using the selectors on the top line. |
| Current The degree of participation of this port in this VLAN. The permissible values are:Include- This port is always a member of this VLAN. This is equivalent to registration fixed in the IEEE 802.1Q standard.Exclude- This port is never a member of this VLAN. This is equivalent to registration forbidden in the IEEE 802.1Q standard.Autodetect- To allow the port to be dynamically registered in this VLAN via GVRP. The port will not participate in this VLAN unless a join request is received on this port. This is equivalent to registration normal in the IEEE 802.1Q standard. | |
| Configured | The configured degree of participation of this port in this VLAN. The permissible values are:Include- This port is always a member of this VLAN. This is equivalent to registration fixed in the IEEE 802.1Q standard.Exclude- This port is never a member of this VLAN. This is equivalent to registration forbidden in the IEEE 802.1Q standard.Autodetect- To allow the port to be dynamically registered in this VLAN via GVRP. The port will not participant in this VLAN unless a join request is received on this port. This is equivalent to registration normal in the IEEE 802.1Q standard. |
| Tagging The tagging behavior for this port in this VLAN.Tagged- Transmit traffic for this VLAN as tagged frames.Untagged- Transmit traffic for this VLAN as untagged frames. | |
show vlan brief
This command displays a list of all configured VLANs.
Format show vlan brief
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| VLAN ID | There is a VLAN Identifier (vlanid) associated with each VLAN. The range of the VLAN ID is 1 to 3965. |
| VLAN Name A string | ing associated with this VLAN as a convenience. It can be up to 32 alphanumeric characters long, including blanks. The default is blank. VLAN ID 1 always has a name of “Default.” This field is optional. |
| VLAN Type | Type of VLAN, which can be Default (VLAN ID = 1) or static (one that is configured and permanently defined), or a Dynamic (one that is created by GVRP registration). |
show vlan port
This command displays VLAN port information.
Format show vlan port {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface | Valid unit, slot, and port number separated by forward slashes. It is possible to set the parameters for all ports by using the selectors on the top line. |
| Port VLAN ID | The VLAN ID that this port will assign to untagged frames or priority tagged frames received on this port. The value must be for an existing VLAN. The factory default is 1. |
| Acceptable Frame Types | The types of frames that may be received on this port. The options are 'VLAN only' and 'Admit All'. When set to 'VLAN only', untagged frames or priority tagged frames received on this port are discarded. When set to 'Admit All', untagged frames or priority tagged frames received on this port are accepted and assigned the value of the Port VLAN ID for this port. With either option, VLAN tagged frames are forwarded in accordance to the 802.1Q VLAN specification. |
| Ingress Filtering | May be enabled or disabled. When enabled, the frame is discarded if this port is not a member of the VLAN with which this frame is associated. In a tagged frame, the VLAN is identified by the VLAN ID in the tag. In an untagged frame, the VLAN is the Port VLAN ID specified for the port that received this frame. When disabled, all frames are forwarded in accordance with the 802.1Q VLAN bridge specification. The factory default is disabled. |
| GVRP May be enabled or disabled. | |
| Default Priority The 802.1p priority assigned to tagged packets arriving on the port. | |
show vlan association subnet
This command displays the VLAN associated with a specific configured IP-Address and net mask. If no IP address and net mask are specified, the VLAN associations of all the configured IP-subnets are displayed.
Format show vlan association subnet [
Mode Privileged EXEC
| Term Definition | |
| IP Subnet The IP | address assigned to each interface. |
| IP Mask The subnet mask. | |
| VLAN ID There is | a VLAN Identifier (VID) associated with each VLAN. |
show vlan association mac
This command displays the VLAN associated with a specific configured MAC address. If no MAC address is specified, the VLAN associations of all the configured MAC addresses are displayed.
Format show vlan association mac [
Mode Privileged EXEC
| Term Definition | |
| MAC Address | A MAC address for which the switch has forwarding and or filtering information. The format is 6 or 8 two-digit hexadecimal numbers that are separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address will be displayed as 8 bytes. |
| VLAN ID There is | a VLAN Identifier (VID) associated with each VLAN. |
Double VLAN Commands
This section describes the commands you use to configure double VLAN (DVLAN). Double VLAN tagging is a way to pass VLAN traffic from one customer domain to another through a Metro Core in a simple and cost effective manner. The additional tag on the traffic helps differentiate between customers in the MAN while preserving the VLAN identification of the individual customers when they enter their own 802.1Q domain.
dvlan-tunnel ethertype
This command configures the ether-type for all interfaces. The ether-type may have the values of 802.1Q, vMAN, or custom. If the ether-type has a value of custom, the optional value of the custom ether type must be set to a value from 0 to 65535.
Default vman
Format dvlan-tunnel ethertype {802.1Q | vman | custom} [0-65535]
Mode Global Config
mode dot1q-tunnel
This command is used to enable Double VLAN Tunneling on the specified interface.
Default disabled
Format mode dot1q-tunnel
Mode Interface Config
no mode dot1q-tunnel
This command is used to disable Double VLAN Tunneling on the specified interface. By default, Double VLAN Tunneling is disabled.
Format no mode dot1q-tunnel
Mode Interface Config
mode dvlan-tunnel
Use this command to enable Double VLAN Tunneling on the specified interface.

Note: When you use the mode dvlan-tunnel command on an interface, it becomes a service provider port. Ports that do not have double VLAN tunneling enabled are customer ports.
Default disabled
Format mode dvlan-tunnel
Mode Interface Config
no mode dvlan-tunnel
This command is used to disable Double VLAN Tunneling on the specified interface. By default, Double VLAN Tunneling is disabled.
Format no mode dvlan-tunnel
Mode Interface Config
show dot1q-tunnel
Use this command without the optional parameters to display all interfaces enabled for Double VLAN Tunneling. Use the optional parameters to display detailed information about Double VLAN Tunneling for the specified interface or all interfaces.
Format show dot1q-tunnel [interface {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Mode The administrative mode through which Double VLAN Tunneling can be enabled or disabled. The default value for this field is disabled. | |
| EtherType | A 2-byte hex EtherType to be used as the first 16 bits of the DVLAN tunnel. There are three different EtherType tags. The first is 802.1Q, which represents the commonly used value of 0x8100. The second is vMAN, which represents the commonly used value of 0x88A8. If EtherType is not one of these two values, then it is a custom tunnel value, representing any value in the range of 0 to 65535. |
show dvlan-tunnel
Use this command without the optional parameters to display all interfaces enabled for Double VLAN Tunneling. Use the optional parameters to display detailed information about Double VLAN Tunneling for the specified interface or all interfaces.
Format show dvlan-tunnel [interface {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Mode The administrative mode through which Double VLAN Tunneling can be enabled or disabled. The default value for this field is disabled. | |
| EtherType | A 2-byte hex EtherType to be used as the first 16 bits of the DVLAN tunnel. There are three different EtherType tags. The first is 802.1Q, which represents the commonly used value of 0x8100. The second is vMAN, which represents the commonly used value of 0x88A8. If EtherType is not one of these two values, then it is a custom tunnel value, representing any value in the range of 0 to 65535. |
Voice VLAN Commands
This section describes the commands you use for Voice VLAN. Voice VLAN enables switch ports to carry voice traffic with defined priority so as to enable separation of voice and data traffic coming onto the port. The benefits of using Voice VLAN is to ensure that the sound quality of an IP phone could be safeguarded from deteriorating when the data traffic on the port is high.
Also the inherent isolation provided by VLANs ensures that inter-VLAN traffic is under management control and that network- attached clients cannot initiate a direct attack on voice components. QoS-based on IEEE 802.1P class of service (CoS) uses classification and scheduling to sent network traffic from the switch in a predictable manner. The system uses the source MAC of the traffic traveling through the port to identify the IP phone data flow.
voice vlan (Global Config)
Use this command to enable the Voice VLAN capability on the switch.
Default disabled
Format voice vlan
Mode Global Config
no voice vlan (Global Config)
Use this command to disable the Voice VLAN capability on the switch.
Format no voice vlan
Mode Global Config
voice vlan (Interface Config)
Use this command to enable the Voice VLAN capability on the interface.
Default disabled
Format voice vlan {
Mode Interface Config
You can configure Voice VLAN in one of three different ways:
| Parameter Description | |
| dot1p Configure the IP phone to use 802.1p priority tagging for voice traffic and to use the default native VLAN (VLAN 0) to carry all traffic. Validrange is 0 to 7. | |
| none Allow the IP | phone to use its own configuration to send untagged voice traffic. |
| untagged Configure | the phone to send untagged voice traffic. |
no voice vlan (Interface Config)
Use this command to disable the Voice VLAN capability on the interface.
Format no voice vlan
Mode Interface Config
voice vlan data priority
Use this command to either trust or untrust the data traffic arriving on the Voice VLAN port.
Default trust
Format voice vlan data priority {untrust | trust}
Mode Interface Config
show voice vlan
Format show voice vlan [interface {
Mode Privileged EXEC
When the interface parameter is not specified, only the global mode of the Voice VLAN is displayed.
| Term Definition | |
| Administrative Mode | The Global Voice VLAN mode. |
When the interface is specified:
| Term Definition | |
| Voice VLAN Interface Mode | The admin mode of the Voice VLAN on the interface. |
| Voice VLAN ID The Voice VL | AN ID |
| Voice VLAN Priority The do | p priority for the Voice VLAN on the port. |
| Voice VLAN Untagged The tagging option for the Voice VLAN traffic. | |
| Voice VLAN CoS Override The Override option for the voice traffic arriving on the port. | |
| Voice VLAN Status The operational status of Voice VLAN on the port. | |
Provisioning (IEEE 802.1p) Commands
This section describes the commands you use to configure provisioning, which allows you to prioritize ports.
vlan port priority all
This command configures the port priority assigned for untagged packets for all ports presently plugged into the device. The range for the priority is 0-7. Any subsequent per port configuration will override this configuration setting.
Format vlan port priority all
Mode Global Config
vlan priority
This command configures the default 802.1p port priority assigned for untagged packets for a specific interface. The range for the priority is 0–7.
Default 0
Format vlan priority
Mode Interface Config
Protected Ports Commands
This section describes commands you use to configure and view protected ports on a switch. Protected ports do not forward traffic to each other, even if they are on the same VLAN. However, protected ports can forward traffic to all unprotected ports in their group. Unprotected ports can forward traffic to both protected and unprotected ports. Ports are unprotected by default.
If an interface is configured as a protected port, and you add that interface to a Port Channel or Link Aggregation Group (LAG), the protected port status becomes operationally disabled on the interface, and the interface follows the configuration of the LAG port. However, the protected port configuration for the interface remains unchanged. Once the interface is no longer a member of a LAG, the current configuration for that interface automatically becomes effective.
switchport protected (Global Config)
Use this command to create a protected port group. The

Note: Port protection occurs within a single switch. Protected port configuration does not affect traffic between ports on two different switches. No traffic forwarding is possible between two protected ports.
Format switchport protected
Mode Global Config
no switchport protected (Global Config)
Use this command to remove a protected port group. The groupid parameter identifies the set of protected ports. Use the name keyword to remove the name from the group.
Format NO switchport protected
Mode Global Config
switchport protected (Interface Config)
Use this command to add an interface to a protected port group. The

Note: Port protection occurs within a single switch. Protected port configuration does not affect traffic between ports on two different switches. No traffic forwarding is possible between two protected ports.
Default unprotected
Format switchport protected
Mode Interface Config
no switchport protected (Interface Config)
Use this command to configure a port as unprotected. The groupid parameter identifies the set of protected ports to which this interface is assigned.
Format no switchport protected
Mode Interface Config
show switchport protected
This command displays the status of all the interfaces, including protected and unprotected interfaces.
Format show switchport protected
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Group ID The number that identifies the protected port group. | |
| Name An optional | name of the protected port group. The name can be up to 32 alphanumeric characters long, including blanks. The default is blank. |
| List of Physical Ports | List of ports, which are configured as protected for the group identified with. If no port is configured as protected for this group, this field is blank. |
show interfaces switchport
This command displays the status of the interface (protected/unprotected) under the groupid.
Format show interfaces switchport
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Name A string associated with this group as a convenience. It can be up to 32 alphanumeric characters long, including blanks. The default is blank. This field is optional. | |
| Protected port | Indicates whether the interface is protected or not. It shows TRUE or FALSE. If the group is a multiple groups then it shows TRUE in Group. |
Private Group Commands
This section describes commands used to configure private group and view private group configuration information.
Private group can be used to create a group of ports that can or can not share traffic to each others in the same VLAN group. The main application is to isolate a group of users from another without using VLAN.
switchport private-group
This command is used to assign one port or a range of ports to private group
The ingress traffic from a port in private group can be forwarded to other ports either in the same private group or anyone in the same VLAN that are not in a private group.
By default, a port does not belong to any private group. A port cannot be in more than one private group. An error message should return when that occurred. To change a port's private group, first the port must be removed from its private group.
Default port not associated with any group.
Format switchport private-group [
Mode Interface Config
no switchport private group
This command is used to remove the specified port from the given private group.
Format no switchport private-group [
Mode Interface Config
private-group name
This command is used to create a private group with name
The
The mode can be either “isolated” or “community”. When in “isolated” mode, the member port in the group cannot forward its egress traffic to any other members in the same group. By default, the mode is “community” mode that each member port can forward traffic to other members in the same group, but not to members in other groups.
Format {
Mode Global Config
no private-group name
This command is used to remove the specified private group.
Format private-group name
Mode Global Config
show private-group
This command displays the private groups' information.
Format show private-groupname [
Mode Privileged EXEC
| Term Definition | |
| Interface Valid slot and port number separated by forward slashes. | |
| Port VLANID | The VLAN ID associated with the port. |
| Private Group ID | Total number of private groups is 192. |
| Private Group Name | The name string can be up to 24 bytes of non-blank characters |
| Private Group The mode can be either “isolated” or “community”. | |
GARP Commands
This section describes the commands you use to configure Generic Attribute Registration Protocol (GARP) and view GARP status. The commands in this section affect both GARP VLAN Registration Protocol (GVRP) and Garp Multicast Registration Protocol (GMRP). GARP is a protocol that allows client stations to register with the switch for membership in VLANS (by using GVMP) or multicast groups (by using GVMP).
set garp timer join
This command sets the GVRP join time for one port (Interface Config mode) or all (Global Config mode) and per GARP. Join time is the interval between the transmission of GARP Protocol Data Units (PDUs) registering (or re-registering) membership for a VLAN or multicast group. This command has an effect only when GVRP is enabled. The time is from 10 to 100 (centiseconds). The value 20 centiseconds is 0.2 seconds.
Default 20
Format set garp timer join <10-100>
Mode · Interface Config
- Global Config
no set garp timer join
This command sets the GVRP join time (for one or all ports and per GARP) to the default and only has an effect when GVRP is enabled.
Format no set garp timer join
Mode · Interface Config
- Global Config
set garp timer leave
This command sets the GVRP leave time for one port (Interface Config mode) or all ports (Global Config mode) and only has an effect when GVRP is enabled. Leave time is the time to wait after receiving an unregister request for a VLAN or a multicast group before deleting the VLAN entry. This can be considered a buffer time for another station to assert registration for the same attribute in order to maintain uninterrupted service. The leave time is 20 to 600 (centiseconds). The value 60 centiseconds is 0.6 seconds.
Default 60
Format set garp timer leave <20-600>
Mode · Interface Config
- Global Config
no set garp timer leave
This command sets the GVRP leave time on all ports or a single port to the default and only has an effect when GVRP is enabled.
Format no set garp timer leave
Mode · Interface Config
- Global Config
set garp timer leaveall
This command sets how frequently Leave All PDUs are generated. A Leave All PDU indicates that all registrations will be unregistered. Participants would need to rejoin in order to maintain registration. The value applies per port and per GARP participation. The time may range from 200 to 6000 (centiseconds). The value 1000 centiseconds is 10 seconds. You can use this command on all ports (Global Config mode) or a single port (Interface Config mode), and it only has an effect only when GVRP is enabled.
Default 1000
Format set garp timer leaveall <200-6000>
Mode · Interface Config
- Global Config
no set garp timer leaveall
This command sets how frequently Leave All PDUs are generated the default and only has an effect when GVRP is enabled.
Format no set garp timer leaveall
Mode · Interface Config
- Global Config
show garp
This command displays GARP information.
Format show garp
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| GMRP Admin Mode | The administrative mode of GARP Multicast Registration Protocol (GMRP) for the system. |
| GVRP Admin Mode | The administrative mode of GARP VLAN Registration Protocol (GVRP) for the system. |
GVRP Commands
This section describes the commands you use to configure and view GARP VLAN Registration Protocol (GVRP) information. GVRP-enabled switches exchange VLAN configuration information, which allows GVRP to provide dynamic VLAN creation on trunk ports and automatic VLAN pruning.
| Note: If GVRP is disabled, the system does not forward GVRP messages. |
set gvrp adminmode
This command enables GVRP on the system.
Default disabled
Format set gvrp adminmode
Mode Privileged EXEC
no set gvrp adminmode
This command disables GVRP.
Format no set gvrp adminmode
Mode Privileged EXEC
set gvrp interfacemode
This command enables GVRP on a single port (Interface Config mode) or all ports (Global Config mode).
Default disabled
Format set gvrp interfacemode
Mode · Interface Config
- Global Config
no set gvrp interfacemode
This command disables GVRP on a single port (Interface Config mode) or all ports (Global Config mode). If GVRP is disabled, Join Time, Leave Time and Leave All Time have no effect.
Format no set gvrp interfacemode
Mode · Interface Config
- Global Config
show gvrp configuration
This command displays Generic Attributes Registration Protocol (GARP) information for one or all interfaces.
Format show gvrp configuration {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Join Timer The interval between the transmission of GARP PDUs registering (or re-registering) membership for an attribute. Current attributes are a VLAN or multicast group. There is an instance of this timer on a per-Port, per-GARP participant basis. Permissible values are 10 to 100 centiseconds (0.1 to 1.0 seconds). The factory default is 20 centiseconds (0.2 seconds). The finest granularity of specification is one centisecond (0.01 seconds). | |
| Leave Timer | The period of time to wait after receiving an unregister request for an attribute before deleting the attribute. Current attributes are a VLAN or multicast group. This may be considered a buffer time for another station to assert registration for the same attribute in order to maintain uninterrupted service. There is an instance of this timer on a per-Port, per-GARP participant basis. Permissible values are 20 to 600 centiseconds (0.2 to 6.0 seconds). The factory default is 60 centiseconds (0.6 seconds). |
| LeaveAll Timer | This Leave All Time controls how frequently LeaveAll PDUs are generated. A LeaveAll PDU indicates that all registrations will shortly be deregistered. Participants will need to rejoin in order to maintain registration. There is an instance of this timer on a per-Port, per-GARP participant basis. The Leave All Period Timer is set to a random value in the range of LeaveAllTime to 1.5*LeaveAllTime. Permissible values are 200 to 6000 centiseconds (2 to 60 seconds). The factory default is 1000 centiseconds (10 seconds). |
| Port GVMRP Mode | The GVRP administrative mode for the port, which is enabled or disabled (default). If this parameter is disabled, Join Time, Leave Time and Leave All Time have no effect. |
GMRP Commands
This section describes the commands you use to configure and view GARP Multicast Registration Protocol (GMRP) information. Like IGMP snooping, GMRP helps control the flooding of multicast packets. GMRP-enabled switches dynamically register and de-register group membership information with the MAC networking devices attached to the same segment. GMRP also allows group membership information to propagate across all networking devices in the bridged LAN that support Extended Filtering Services.

Note: If GMRP is disabled, the system does not forward GMRP messages.
set gmrp adminmode
This command enables GARP Multicast Registration Protocol (GMRP) on the system.
Default disabled
Format set gmrp adminmode
Mode Privileged EXEC
no set gmrp adminmode
This command disables GARP Multicast Registration Protocol (GMRP) on the system.
Format no set gmrp adminmode
Mode Privileged EXEC
set gmrp interfacemode
This command enables GARP Multicast Registration Protocol on a single interface (Interface Config mode) or all interfaces (Global Config mode). If an interface which has GARP enabled is enabled for routing or is enlisted as a member of a port-channel (LAG), GARP functionality is disabled on that interface. GARP functionality is subsequently re-enabled if routing is disabled and port-channel (LAG) membership is removed from an interface that has GARP enabled.
Default disabled
Format set gmrp interfacemode
Mode · Interface Config
- Global Config
no set gmrp interfacemode
This command disables GARP Multicast Registration Protocol on a single interface or all interfaces. If an interface which has GARP enabled is enabled for routing or is enlisted as a member of a port-channel (LAG), GARP functionality is disabled. GARP functionality is subsequently re-enabled if routing is disabled and port-channel (LAG) membership is removed from an interface that has GARP enabled.
Format no set gmrp interfacemode
Mode · Interface Config
- Global Config
show gmrp configuration
This command displays Generic Attributes Registration Protocol (GARP) information for one or all interfaces.
Format show gmrp configuration {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The unit | /slot/port of the interface that this row in the table describes. |
| Join Timer The interval between the transmission of GARP PDUs registering (or re-registering) membership for an attribute. Current attributes are a VLAN or multicast group. There is an instance of this timer on a per-port, per-GARP participant basis. Permissible values are 10 to 100 centiseconds (0.1 to 1.0 seconds). The factory default is 20 centiseconds (0.2 seconds). The finest granularity of specification is 1 centisecond (0.01 seconds). | |
| Leave Timer | The period of time to wait after receiving an unregister request for an attribute before deleting the attribute. Current attributes are a VLAN or multicast group. This may be considered a buffer time for another station to assert registration for the same attribute in order to maintain uninterrupted service. There is an instance of this timer on a per-Port, per-GARP participant basis. Permissible values are 20 to 600 centiseconds (0.2 to 6.0 seconds). The factory default is 60 centiseconds (0.6 seconds). |
| LeaveAll Timer | This Leave All Time controls how frequently LeaveAll PDUs are generated. A LeaveAll PDU indicates that all registrations will shortly be deregistered. Participants will need to rejoin in order to maintain registration. There is an instance of this timer on a per-Port, per-GARP participant basis. The Leave All Period Timer is set to a random value in the range of LeaveAllTime to 1.5*LeaveAllTime. Permissible values are 200 to 6000 centiseconds (2 to 60 seconds). The factory default is 1000 centiseconds (10 seconds). |
| Port GMRP Mode | The GMRP administrative mode for the port. It may be enabled or disabled. If this parameter is disabled, Join Time, Leave Time and Leave All Time have no effect. |
show mac-address-table gmrp
This command displays the GMRP entries in the Multicast Forwarding Database (MFDB) table.
Format show mac-address-table gmrp
Mode Privileged EXEC
| Term Definition | |
| Mac Address | A unicast MAC address for which the switch has forwarding and or filtering information. The format is 6 or 8 two-digit hexadecimal numbers that are separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address is displayed as 8 bytes. |
| Type The type of the entry. Static entries are those that are configured by the end user. Dynamic entries are added to the table as a result of a learning process or protocol. | |
| Description The text description of this multicast table entry. | |
| Interfaces | The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:). |
Port-Based Network Access Control Commands
This section describes the commands you use to configure port-based network access control (802.1x). Port-based network access control allows you to permit access to network services only to and devices that are authorized and authenticated.
clear dot1x statistics
This command resets the 802.1x statistics for the specified port or for all ports.
Format clear dot1x statistics {
Mode Privileged EXEC
clear radius statistics
This command is used to clear all RADIUS statistics.
Format clear radius statistics
Mode Privileged EXEC
dot1x guest-vlan
This command configures VLAN as guest vlan on a per port basis. The command specifies an active VLAN as an IEEE 802.1x guest VLAN. The range is 1 to the maximum VLAN ID supported by the platform.
Default disabled
Format dot1x guest-vlan
Mode Interface Config
no dot1x guest-vlan
This command disables Guest VLAN on the interface.
Default disabled
Format no dot1x guest-vlan
Mode Interface Config
dot1x initialize
This command begins the initialization sequence on the specified port. This command is only valid if the control mode for the specified port is “auto” or “mac-based”. If the control mode is not 'auto' or “mac-based”, an error will be returned.
Format dot1x initialize
Mode Privileged EXEC
dot1x max-req
This command sets the maximum number of times the authenticator state machine on this port will transmit an EAPOL EAP Request/Identity frame before timing out the supplicant. The
Default 2
Format dot1x max-req
Mode Interface Config
no dot1x max-req
This command sets the maximum number of times the authenticator state machine on this port will transmit an EAPOL EAP Request/Identity frame before timing out the supplicant.
Format no dot1x max-req
Mode Interface Config
dot1x max-users
Use this command to set the maximum number of clients supported on the port when MAC-based dot1x authentication is enabled on the port. The maximum users supported per port is dependent on the product. The
Default 16
Format dot1x max-users
Mode Interface Config
no dot1x max-users
This command resets the maximum number of clients allowed per port to its default value.
Format no dot1x max-req
Mode Interface Config
dot1x port-control
This command sets the authentication mode to use on the specified port. Select force-unauthorized to specify that the authenticator PAE unconditionally sets the controlled port to unauthorized. Select force-authorized to specify that the authenticator PAE unconditionally sets the controlled port to authorized. Select auto to specify that the authenticator PAE sets the controlled port mode to reflect the outcome of the authentication exchanges between the supplicant, authenticator and the authentication server. If the mac-based option is specified, then MAC-based dot1x authentication is enabled on the port.
Default auto
Format dot1x port-control {force-unauthorized | force-authorized | auto | mac-based}
Mode Interface Config
no dot1x port-control
This command sets the 802.1x port control mode on the specified port to the default value.
Format no dot1x port-control
Mode Interface Config
dot1x port-control all
This command sets the authentication mode to use on all ports. Select force-unauthorized to specify that the authenticator PAE unconditionally sets the controlled port to unauthorized. Select force-authorized to specify that the authenticator PAE unconditionally sets the controlled port to authorized. Select auto to specify that the authenticator PAE sets the controlled port mode to reflect the outcome of the authentication exchanges between the supplicant, authenticator and the authentication server. If the mac-based option is specified, then MAC-based dot1x authentication is enabled on the port.
Default auto
Format dot1x port-control all {force-unauthorized | force-authorized | auto | mac-based}
Mode Global Config
no dot1x port-control all
This command sets the authentication mode on all ports to the default value.
Format no dot1x port-control all
Mode Global Config
dot1x re-authenticate
This command begins the re-authentication sequence on the specified port. This command is only valid if the control mode for the specified port is “auto” or “mac-based”. If the control mode is not “auto” or “mac-based”, an error will be returned.
Format dot1x re-authenticate
Mode Privileged EXEC
dot1x re-authentication
This command enables re-authentication of the supplicant for the specified port.
Default disabled
Format dot1x re-authentication
Mode Interface Config
no dot1x re-authentication
This command disables re-authentication of the supplicant for the specified port.
Format no dot1x re-authentication
Mode Interface Config
dot1x system-auth-control
Use this command to enable the dot1x authentication support on the switch. While disabled, the dot1x configuration is retained and can be changed, but is not activated.
Default disabled
Format dot1x system-auth-control
Mode Global Config
no dot1x system-auth-control
This command is used to disable the dot1x authentication support on the switch.
Format no dot1x system-auth-control
Mode Global Config
dot1x timeout
This command sets the value, in seconds, of the timer used by the authenticator state machine on this port. Depending on the token used and the value (in seconds) passed, various timeout configurable parameters are set. The following tokens are supported:
| Tokens Definition | |
| guest-vlan-period | The time, in seconds, for which the authenticator waits to see if any EAPOL packets are received on a port before authorizing the port and placing the port in the guest vlan (if configured). The guest vlan timer is only relevant when guest vlan has been configured on that specific port. |
| reauth-period | The value, in seconds, of the timer used by the authenticator state machine on this port to determine when re-authentication of the supplicant takes place. The reauth-period must be a value in the range 1 - 65535. |
| quiet-period | The value, in seconds, of the timer used by the authenticator state machine on this port to define periods of time in which it will not attempt to acquire a supplicant. The quiet-period must be a value in the range 0 - 65535. |
| tx-period | The value, in seconds, of the timer used by the authenticator state machine on this port to determine when to send an EAPOL EAP Request/Identity frame to the supplicant. The quiet-period must be a value in the range 1 - 65535. |
| supp-timeout | The value, in seconds, of the timer used by the authenticator state machine on this port to timeout the supplicant. The supp-timeout must be a value in the range 1 - 65535. |
| server-timeout | The value, in seconds, of the timer used by the authenticator state machine on this port to timeout the authentication server. The supp-timeout must be a value in the range 1 - 65535. |
Default • guest-vlan-period: 90 seconds
- reauth-period: 3600 seconds
- quiet-period: 60 seconds
- tx-period: 30 seconds
- supp-timeout: 30 seconds
• server-timeout: 30 seconds
Format dot1x timeout {{guest-vlan-period
Mode Interface Config
no dot1x timeout
This command sets the value, in seconds, of the timer used by the authenticator state machine on this port to the default values. Depending on the token used, the corresponding default values are set.
Format no dot1x timeout {guest-vlan-period | reauth-period | quiet-period | tx-period | supp-timeout | server-timeout}
Mode Interface Config
dot1x unauthenticated-vlan
Use this command to configure the unauthenticated VLAN associated with that port. The unauthenticated VLAN ID can be a valid VLAN ID from 0-Maximum supported VLAN ID (4093 for 7000 series). The unauthenticated VLAN must be statically configured in the VLAN database to be operational. By default, the unauthenticated VLAN is 0, i.e. invalid and not operational.
Default 0
Format dot1x unauthenticated-vlan
Mode Interface Config
no dot1x unauthenticated-vlan
This command resets the unauthenticated-vlan associated with the port to its default value.
Format no dot1x unauthenticated-vlan
Mode Interface Config
dot1x user
This command adds the specified user to the list of users with access to the specified port or all ports. The
Format dot1x user
Mode Global Config
no dot1x user
This command removes the user from the list of users with access to the specified port or all ports.
Format no dot1x user
Mode Global Config
show authentication methods
This command displays information about the authentication methods.
Format show authentication methods
Mode Privileged EXEC
The following is an example of this command:
Login Authentication Method Lists
Console_Default: None
Network_Default:Local
Enable Authentication Lists
Console_Default: Enable None
Network_Default:Enable
Line Login Method List Enable Method Lists
Console Console_Default Console_Default
Telnet Network_Default Network_Default
SSH Network_Default Network_Default
http : Local
https : Local
dot1x :
show dot1x
This command is used to show a summary of the global dot1x configuration, summary information of the dot1x configuration for a specified port or all ports, the detailed dot1x configuration for a specified port and the dot1x statistics for a specified port - depending on the tokens used.
Format show dot1x [{summary {
Mode Privileged EXEC
If you do not use the optional parameters
| Term Definition | |
| Administrative Mode | Indicates whether authentication control on the switch is enabled or disabled. |
| VLAN Assignment Mode | Indicates whether assignment of an authorized port to a RADIUS assigned VLAN is allowed (enabled) or not (disabled). |
If you use the optional parameter summary {
| Term Definition | |
| Interface The interface whose configuration is displayed. | |
| Control Mode | The configured control mode for this port. Possible values are force-unauthorized | force-authorized | auto | mac-based | authorized | unauthorized. |
| Operating Control Mode | The control mode under which this port is operating. Possible values are authorized | unauthorized. |
| Reauthentication Enabled | Indicates whether re-authentication is enabled on this port. |
| Port Status | Indicates whether the port is authorized or unauthorized. Possible values are authorized | unauthorized. |
If you use the optional parameter 'detail
| Term Definition | |
| Port The interface | whose configuration is displayed. |
| Protocol Version | The protocol version associated with this port. The only possible value is 1, corresponding to the first version of the dot1x specification. |
| PAE Capabilities | The port access entity (PAE) functionality of this port. Possible values are Authenticator or Supplicant. |
| Control Mode | The configured control mode for this port. Possible values are force-unauthorized | force-authorized | auto | mac-based. |
| Authenticator PAE State | Current state of the authenticator PAE state machine. Possible values are Initialize, Disconnected, Connecting, Authenticating, Authenticated, Aborting, Held, ForceAuthorized, and ForceUnauthorized. When MAC-based authentication is enabled on the port, this parameter is deprecated. |
| Backend Authentication State | Current state of the backend authentication state machine. Possible values are Request, Response, Success, Fail, Timeout, Idle, and Initialize. When MAC-based authentication is enabled on the port, this parameter is deprecated. |
| Quiet Period | The timer used by the authenticator state machine on this port to define periods of time in which it will not attempt to acquire a supplicant. The value is expressed in seconds and will be in the range 0 and 65535. |
| Transmit Period | The timer used by the authenticator state machine on the specified port to determine when to send an EAPOL EAP Request/Identity frame to the supplicant. The value is expressed in seconds and will be in the range of 1 and 65535. |
| Guest-VLAN ID | The guest VLAN identifier configured on the interface. |
| Guest VLAN Period | The time in seconds for which the authenticator waits before authorizing and placing the port in the Guest VLAN, if no EAPOL packets are detected on that port. |
| Supplicant Timeout | The timer used by the authenticator state machine on this port to timeout the supplicant. The value is expressed in seconds and will be in the range of 1 and 65535. |
| Server Timeout | The timer used by the authenticator on this port to timeout the authentication server. The value is expressed in seconds and will be in the range of 1 and 65535. |
| Maximum Requests | The maximum number of times the authenticator state machine on this port will retransmit an EAPOL EAP Request/Identity before timing out the supplicant. The value will be in the range of 1 and 10. |
| VLAN Id The VLAN | N assigned to the port by the radius server. This is only valid when the port control mode is not Mac-based. |
| VLAN Assigned Reason | The reason the VLAN identified in the VLAN Idfield has been assigned to the port. Possible values are RADIUS, Unauthenticated VLAN, Guest VLAN, default, and Not Assigned. When the VLAN Assigned Reason is ‘Not Assigned’t, it means that the port has not been assigned to any VLAN by dot1x. This only valid when the port control mode is not MAC-based. |
| Reauthentication Period | The timer used by the authenticator state machine on this port to determine when reauthentication of the supplicant takes place. The value is expressed in seconds and will be in the range of 1 and 65535. |
| Reauthentication Enabled | Indicates if reauthentication is enabled on this port. Possible values are ‘True’ or “False”. |
| Key Transmission Enabled | Indicates if the key is transmitted to the supplicant for the specified port. Possible values are True or False. |
| Control Direction | The control direction for the specified port or ports. Possible values are both or in. |
| Maximum Users | The maximum number of clients that can get authenticated on the port in the MAC-based dot1x authentication mode. This value is used only when the port control mode is not MAC-based. |
| Unauthenticated VLAN ID | Indicates the unauthenticated VLAN configured for this port. This value is valid for the port only when the port control mode is not MAC-based. |
| Session Timeout | Indicates the time for which the given session is valid. The time period in seconds is returned by the RADIUS server on authentication of the port. This value is valid for the port only when the port control mode is not MAC-based. |
| Session Termination Action | This value indicates the action to be taken once the session timeout expires. Possible values are Default, Radius-Request. If the value is Default, the session is terminated the port goes into unauthorized state. If the value is Radius-Request, then a reauthentication of the client authenticated on the port is performed. This value is valid for the port only when the port control mode is not MAC-based. |
The show dot1x detail
| Term Definition | |
| Supplicant MAC-Address | The MAC-address of the supplicant. |
| Authenticator PAE State | Current state of the authenticator PAE state machine. Possible values are Initialize, Disconnected, Connecting, Authenticating, Authenticated, Aborting, Held, ForceAuthorized, and ForceUnauthorized. |
| Backend Authentication State | Current state of the backend authentication state machine. Possible values are Request, Response, Success, Fail, Timeout, Idle, and Initialize. |
| VLAN-Assigned | The VLAN assigned to the client by the radius server. |
| Logical Port The | logical port number associated with the client. |
If you use the optional parameter statistics
| Term Definition | |
| Port The interface | whose statistics are displayed. |
| EAPOL Frames Received | The number of valid EAPOL frames of any type that have been received by this authenticator. |
| EAPOL Frames Transmitted | The number of EAPOL frames of any type that have been transmitted by this authenticator. |
| EAPOL Start Frames Received | The number of EAPOL start frames that have been received by this authenticator. |
| EAPOL Logoff Frames Received | The number of EAPOL logoff frames that have been received by this authenticator. |
| Last EAPOL Frame Version | The protocol version number carried in the most recently received EAPOL frame. |
| Last EAPOL Frame Source | The source MAC address carried in the most recently received EAPOL frame. |
| EAP Response/Id Frames Received | The number of EAP response/identity frames that have been received by this authenticator. |
| EAP Response Frames Received | The number of valid EAP response frames (other than resp/id frames) that have been received by this authenticator. |
| EAP Request/Id Frames Transmitted | The number of EAP request/identity frames that have been transmitted by this authenticator. |
| EAP Request Frames Transmitted | The number of EAP request frames (other than request/identity frames) that have been transmitted by this authenticator. |
| Invalid EAPOL Frames Received | The number of EAPOL frames that have been received by this authenticator in which the frame type is not recognized. |
| EAP Length Error Frames Received | The number of EAPOL frames that have been received by this authenticator in which the frame type is not recognized. |
show dot1x clients
This command displays 802.1x client information.
Format show dot1x clients {
Mode Privileged EXEC
| Term Definition | |
| Logical Interface | The logical port number associated with a client. |
| Interface The physical port to which the supplicant is associated. | |
| User Name The user name used by the client to authenticate to the server. | |
| Supplicant MAC Address | The supplicant device MAC address. |
| Session Time The time since the supplicant is logged on. | |
| Filter ID | Identifies the Filter ID returned by the RADIUS server when the client was authenticated. This is a configured DiffServ policy name on the switch. |
| VLAN ID The VLAN assigned to the port. | |
| VLAN Assigned | The reason the VLAN identified in the VLAN ID field has been assigned to the port. Possible values are RADIUS, Unauthenticated VLAN, or Default. When the VLAN Assigned reason is Default, it means that the VLAN was assigned to the port because the PVID of the port was that VLAN ID. |
| Session Timeout | This value indicates the time for which the given session is valid. The time period in seconds is returned by the RADIUS server on authentication of the port. This value is valid for the port only when the port-control mode is not MAC-based. |
| Session Termination Action | This value indicates the action to be taken once the session timeout expires. Possible values are Default and Radius-Request. If the value is Default, the session is terminated and client details are cleared. If the value is Radius-Request, then a reauthentication of the client is performed. |
show dot1x users
This command displays 802.1x port security user information for locally configured users.
Format show dot1x users
Mode Privileged EXEC
| Term Definition | |
| Users Users configured locally to have access to the specified port. | |
Storm-Control Commands
This section describes commands you use to configure storm-control and view storm-control configuration information. A traffic storm is a condition that occurs when incoming packets flood the LAN, which creates performance degradation in the network. The Storm-Control feature protects against this condition.
The 7000 series provides broadcast, multicast, and unicast story recovery for individual interfaces. Unicast Storm-Control protects against traffic whose MAC addresses are not known by the system. For broadcast, multicast, and unicast storm-control, if the rate of traffic ingressing on an interface increases beyond the configured threshold for that type, the traffic is dropped.
To configure storm-control, you will enable the feature for all interfaces or for individual interfaces, and you will set the threshold (storm-control level) beyond which the broadcast, multicast, or unicast traffic will be dropped. The Storm-Control feature allows you to limit the rate of specific types of packets through the switch on a per-port, per-type, basis.
Configuring a storm-control level also enables that form of storm-control. Disabling a storm-control level (using the “no” version of the command) sets the storm-control level back to the default value and disables that form of storm-control. Using the “no” version of the “storm-control” command (not stating a “level”) disables that form of storm-control but maintains the configured “level” (to be active the next time that form of storm-control is enabled.)

Note: The actual rate of ingress traffic required to activate storm-control is based on the size of incoming packets and the hard-coded average packet size of 512 bytes - used to calculate a packet-per-second (pps) rate - as the forwarding-plane requires pps versus an absolute rate kbps. For example, if the configured limit is 10%, this is converted to \~25000 pps, and this pps limit is set in forwarding plane (hardware). You get the approximate desired output when 512bytes packets are used.
storm-control broadcast
Use this command to enable broadcast storm recovery mode for a specific interface. If the mode is enabled, broadcast storm recovery is active and, if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of broadcast traffic will be limited to the configured threshold.
Default enabled
Format storm-control broadcast
Mode Interface Config
no storm-control broadcast
Use this command to disable broadcast storm recovery mode for a specific interface.
Format no storm-control broadcast
Mode Interface Config
storm-control broadcast level
Use this command to configure the broadcast storm recovery threshold for an interface as a percentage of link speed and enable broadcast storm recovery. If the mode is enabled, broadcast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of broadcast traffic is limited to the configured threshold.
Default 5
Format storm-control broadcast level <0-100>
Mode Interface Config
no storm-control broadcast level
This command sets the broadcast storm recovery threshold to the default value for an interface and disables broadcast storm recovery.
Format no storm-control broadcast level
Mode Interface Config
storm-control broadcast rate
Use this command to configure the broadcast storm recovery threshold for an interface in packets per second. If the mode is enabled, broadcast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of broadcast traffic is limited to the configured threshold.
Default 0
Format storm-control broadcast rate <0-14880000>
Mode Interface Config
no storm-control broadcast rate
This command sets the broadcast storm recovery threshold to the default value for an interface and disables broadcast storm recovery.
Format no storm-control broadcast rate
Mode Interface Config
storm-control broadcast (Global Config)
This command enables broadcast storm recovery mode for all interfaces. If the mode is enabled, broadcast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of broadcast traffic will be limited to the configured threshold.
Default disabled
Format storm-control broadcast
Mode Global Config
no storm-control broadcast
This command disables broadcast storm recovery mode for all interfaces.
Format no storm-control broadcast
Mode Global Config
storm-control broadcast level (Global Config)
This command configures the broadcast storm recovery threshold for all interfaces as a percentage of link speed and enables broadcast storm recovery. If the mode is enabled, broadcast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of broadcast traffic will be limited to the configured threshold. This command also enables broadcast storm recovery mode for all interfaces.
Default 5
Format storm-control broadcast level <0-100>
Mode Global Config
no storm-control broadcast level
This command sets the broadcast storm recovery threshold to the default value for all interfaces and disables broadcast storm recovery.
Format no storm-control broadcast level
Mode Global Config
storm-control broadcast rate (Global Config)
Use this command to configure the broadcast storm recovery threshold for all interfaces in packets per second. If the mode is enabled, broadcast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of broadcast traffic is limited to the configured threshold.
Default 0
Format storm-control broadcast rate <0-14880000>
Mode Global Config
no storm-control broadcast rate
This command sets the broadcast storm recovery threshold to the default value for all interfaces and disables broadcast storm recovery.
Format no storm-control broadcast rate
Mode Global Config
storm-control multicast
This command enables multicast storm recovery mode for an interface. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 multicast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of multicast traffic will be limited to the configured threshold.
Default disabled
Format storm-control multicast
Mode Interface Config
no storm-control multicast
This command disables multicast storm recovery mode for an interface.
Format no storm-control multicast
Mode Interface Config
storm-control multicast level
This command configures the multicast storm recovery threshold for an interface as a perecentage of link speed and enables multicast storm recovery mode. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 multicast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of multicast traffic will be limited to the configured threshold.
Default 5
Format storm-control multicast level < 0 - 100>
Mode Interface Config
no storm-control multicast level
This command sets the multicast storm recovery threshold to the default value for an interface and disables multicast storm recovery.
Format no storm-control multicast level <0-100>
Mode Interface Config
storm-control multicast rate
Use this command to configure the multicast storm recovery threshold for an interface in packets per second. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of multicast traffic is limited to the configured threshold.
Default 0
Format storm-control multicast rate <0-14880000>
Mode Interface Config
no storm-control multicast rate
This command sets the multicast storm recovery threshold to the default value for an interface and disables multicast storm recovery.
Format no storm-control multicast rate
Mode Interface Config
storm-control multicast (Global Config)
This command enables multicast storm recovery mode for all interfaces. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 multicast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of multicast traffic will be limited to the configured threshold.
Default disabled
Format storm-control multicast
Mode Global Config
no storm-control multicast
This command disables multicast storm recovery mode for all interfaces.
Format no storm-control multicast
Mode Global Config
storm-control multicast level (Global Config)
This command configures the multicast storm recovery threshold for all interfaces as a percentage of link speed and enables multicast storm recovery mode. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 multicast traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of multicast traffic will be limited to the configured threshold.
Default 5
Format storm-control multicast level <0-100>
Mode Global Config
no storm-control multicast level
This command sets the multicast storm recovery threshold to the default value for all interfaces and disables multicast storm recovery.
Format no storm-control multicast level
Mode Global Config
storm-control multicast rate (Global Config)
Use this command to configure the multicast storm recovery threshold for all interfaces in packets per second. If the mode is enabled, multicast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of multicast traffic is limited to the configured threshold.
Default 0
Format storm-control multicast rate <0-14880000>
Mode Global Config
no storm-control broadcast rate
This command sets the broadcast storm recovery threshold to the default value for all interfaces and disables broadcast storm recovery.
Format no storm-control broadcast rate
Mode Global Config
storm-control unicast
This command enables unicast storm recovery mode for an interface. If the mode is enabled, unicast storm recovery is active, and if the rate of unknown L2 unicast (destination lookup failure) traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of unknown unicast traffic will be limited to the configured threshold.
Default disabled
Format storm-control unicast
Mode Interface Config
no storm-control unicast
This command disables unicast storm recovery mode for an interface.
Format no storm-control unicast
Mode Interface Config
storm-control unicast level
This command configures the unicast storm recovery threshold for an interface as a percentage of link speed, and enables unicast storm recovery. If the mode is enabled, unicast storm recovery is active, and if the rate of unknown L2 unicast (destination lookup failure) traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of unknown unicast traffic will be limited to the configured threshold. This command also enables unicast storm recovery mode for an interface.
Default 5
Format storm-control unicast level <0-100>
Mode Interface Config
no storm-control unicast level
This command sets the unicast storm recovery threshold to the default value for an interface and disables unicast storm recovery.
Format no storm-control unicast level
Mode Interface Config
storm-control unicast rate
Use this command to configure the unicast storm recovery threshold for an interface in packets per second. If the mode is enabled, unicast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of unicast traffic is limited to the configured threshold.
Default 0
Format storm-control unicast rate <0-14880000>
Mode Interface Config
no storm-control unicast rate
This command sets the unicast storm recovery threshold to the default value for an interface and disables unicast storm recovery.
Format no storm-control unicast rate
Mode Interface Config
storm-control unicast (Global Config)
This command enables unicast storm recovery mode for all interfaces. If the mode is enabled, unicast storm recovery is active, and if the rate of unknown L2 unicast (destination lookup failure) traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of unknown unicast traffic will be limited to the configured threshold.
Default disabled
Format storm-control unicast
Mode Global Config
no storm-control unicast
This command disables unicast storm recovery mode for all interfaces.
Format no storm-control unicast
Mode Global Config
storm-control unicast level (Global Config)
This command configures the unicast storm recovery threshold for all interfaces as a percentage of link speed, and enables unicast storm recovery. If the mode is enabled, unicast storm recovery is active, and if the rate of unknown L2 unicast (destination lookup failure) traffic ingressing on an interface increases beyond the configured threshold, the traffic will be dropped. Therefore, the rate of unknown unicast traffic will be limited to the configured threshold.
Default 5
Format storm-control unicast level <0-100>
Mode Global Config
no storm-control unicast level
This command sets the unicast storm recovery threshold to the default value and disables unicast storm recovery for all interfaces.
Format no storm-control unicast level
Mode Global Config
storm-control unicast rate (Global Config)
Use this command to configure the unicast storm recovery threshold for all interfaces in packets per second. If the mode is enabled, unicast storm recovery is active, and if the rate of L2 broadcast traffic ingressing on an interface increases beyond the configured threshold, the traffic is dropped. Therefore, the rate of unicast traffic is limited to the configured threshold.
Default 0
Format storm-control unicast rate <0-14880000>
Mode Global Config
no storm-control unicast rate
This command sets the multicast storm recovery threshold to the default value for an interface and disables multicast storm recovery.
Format no storm-control unicast rate
Mode Global Config
storm-control flowcontrol
This command enables 802.3x flow control for the switch and only applies to full-duplex mode ports.

Note: 802.3x flow control works by pausing a port when the port becomes oversubscribed and dropping all traffic for small bursts of time during the congestion condition. This can lead to high-priority and/or network control traffic loss.
Default disabled
Format storm-control flowcontrol
Mode Global Config
no storm-control flowcontrol
This command disables 802.3x flow control for the switch.

Note: This command only applies to full-duplex mode ports.
Format no storm-control flowcontrol
Mode Global Config
show storm-control
This command displays switch configuration information. If you do not use any of the optional parameters, this command displays global storm control configuration parameters:
- Broadcast Storm Control Mode may be enabled or disabled. The factory default is disabled.
- 802.3x Flow Control Mode may be enabled or disabled. The factory default is disabled.
- Broadcast Storm Control Level The broadcast storm control level. The factory default is 5% .
- Multicast Storm Control Mode may be enabled or disabled. The factory default is disabled.
- Multicast Storm Control Level The multicast storm control level. The factory default is 5% .
- Unicast Storm Control Mode may be enabled or disabled. The factory default is disabled.
- Unicast Storm Control Level The unicast storm control level. The factory default is 5% .
Use the all keyword to display the per-port configuration parameters for all interfaces, or specify the unit/slot/port to display information about a specific interface.
Format show storm-control [all |
Mode Privileged EXEC
| Term Definition | |
| Bcast Mode | Shows whether the broadcast storm control mode is enabled or disabled. The factory default is disabled. |
| Bcast Level The | broadcast storm control level. |
| Mcast Mode Shows | whether the multicast storm control mode is enabled or disabled. |
| Mcast Level The | multicast storm control level. |
| Ucast Mode | Shows whether the Unknown Unicast or DLF (Destination Lookup Failure) storm control mode is enabled or disabled. |
| Ucast Level The | Unknown Unicast or DLF (Destination Lookup Failure) storm control level. |
Port-Channel/LAG (802.3ad) Commands
This section describes the commands you use to configure port-channels, which are also known as link aggregation groups (LAGs). Link aggregation allows you to combine multiple full-duplex Ethernet links into a single logical link. Network devices treat the aggregation as if it were a single link, which increases fault tolerance and provides load sharing. The LAG feature initially load
shares traffic based upon the source and destination MAC address.Assign the port-channel (LAG) VLAN membership after you create a port-channel. If you do not assign VLAN membership, the port-channel might become a member of the management VLAN which can result in learning and switching issues.
A port-channel (LAG) interface can be either static or dynamic, but not both. All members of a port channel must participate in the same protocols.) A static port-channel interface does not require a partner system to be able to aggregate its member ports.

Note: If you configure the maximum number of dynamic port-channels (LAGs) that your platform supports, additional port-channels that you configure are automatically static.
port-channel
This command configures a new port-channel (LAG) and generates a logical unit/slot/port number for the port-channel. The

Note: Before you include a port in a port-channel, set the port physical mode. For more information, see “speed” on page 3-7.
Format port-channel
Mode Global Config
no port-channel
This command deletes a port-channel (LAG).
Format no port-channel {
Mode Global Config
addport
This command adds one port to the port-channel (LAG). The interface is a logical unit/slot/port number or a group ID of a configured port-channel.

Note: Before adding a port to a port-channel, set the physical mode of the port. For more information, see “speed” on page 3-7
Format addport {
Mode Interface Config
deleteport (Interface Config)
This command deletes the port from the port-channel (LAG). The interface is a logical unit/slot/port number or a group ID of a configured port-channel.
Format deleteport {
Mode Interface Config
deleteport (Global Config)
This command deletes all configured ports from the port-channel (LAG). The interface is a logical unit/slot/port number of a configured port-channel. To clear the port channels, see “clear port-channel” on page 9-28.
Format deleteport
Mode Global Config
Iacp admin key
Use this command to configure the administrative value of the key for the port-channel. The value range of
Default 0x8000
Format lacp admin key
Mode Interface Config

Note: This command is only applicable to port-channel interfaces.
no lacp admin key
Use this command to configure the default administrative value of the key for the port-channel.
Format no lacp admin key
Mode Interface Config
Iacp collector max-delay
Use this command to configure the port-channel collector max delay. The valid range of
Default 0x8000
Format lacp collector max-delay
Mode Interface Config

Note: This command is only applicable to port-channel interfaces.
no lacp collector max delay
Use this command to configure the default port-channel collector max delay.
Format no lacp collector max-delay
Mode Interface Config
lapc actor admin
Use this command to configure the LACP actor admin parameters.
Iacp actor admin key
Use this command to configure the administrative value of the LACP actor admin key. The valid range for
Default Internal Interface Number of this Physical Port
Format lacp actor admin key
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor admin key
Use this command to configure the default administrative value of the key.
Format no lacp actor admin key
Mode Interface Config
Iacp actor admin state individual
Use this command to set LACP actor admin state to individual.
Format lacp actor admin state individual
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor admin state individual
Use this command to set the LACP actor admin state to aggregation.
Format no lacp actor admin state individual
Mode Interface Config
Iacp actor admin state longtimeout
Use this command to set LACP actor admin state to longtimeout.
Format lacp actor admin state longtimeout
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor admin state longtimeout
Use this command to set the LACP actor admin state to short timeout.
Format no lacp actor admin state longtimeout
Mode Interface Config

Note: This command is only applicable to physical interfaces.
Iacp actor admin state passive
Use this command to set the LACP actor admin state to passive.
Format lacp actor admin state passive
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor admin state passive
Use this command to set the LACP actor admin state to active.
Format no lacp actor admin state passive
Mode Interface Config
Iacp actor port priority
Use this command to configure the priority value assigned to the Aggregation Port. The valid range for
Default 0x80
Format lacp actor port priority
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor port priority
Use this command to configure the default priority value assigned to the Aggregation Port.
Format no lacp actor port priority
Mode Interface Config
Iacp actor system priority
Use this command to configure the priority value associated with the LACP Actor's SystemID. The range for
Default 32768
Format lacp actor system priority
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp actor system priority
Use this command to configure the priority value associated with the Actor's SystemID.
Format no lacp actor system priority
Mode Interface Config
Iacp partner admin key
Use this command to configure the administrative value of the Key for the protocol partner. The valid range for
Default 0x0
Format lacp partner admin key
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner admin key
Use this command to configure the administrative value of the Key for the protocol partner.
Format no lacp partner admin key
Mode Interface Config
Iacp partner admin state individual
Use this command to set LACP partner admin state to individual.
Format lacp partner admin state individual
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner admin state individual
Use this command to set the LACP partner admin state to aggregation.
Format no lacp partner admin state individual Mode Interface Config
Iacp partner admin state longtimeout
Use this command to set LACP partner admin state to longtimeout.
Format lacp partner admin state longtimeout Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner admin state longtimeout
Use this command to set the LACP partner admin state to short timeout.
Format no lacp partner admin state longtimeout Mode Interface Config

Note: This command is only applicable to physical interfaces.
Iacp partner admin state passive
Use this command to set the LACP partner admin state to passive.
Format lacp partner admin state passive
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner admin state passive
Use this command to set the LACP partner admin state to active.
Format no lacp partner admin state passive
Mode Interface Config
Iacp partner port id
Use this command to configure the LACP partner port id. The valid range for
Default 0x80
Format lacp partner portid
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner port id
Use this command to set the LACP partner port id to the default.
Format no lacp partner portid
Mode Interface Config
Iacp partner port priority
Use this command to configure the LACP partner port priority. The valid range for
Default 0x0
Format lacp partner port priority
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner port priority
Use this command to configure the default LACP partner port priority.
Format no lacp partner port priority
Mode Interface Config
lap partner system id
Use this command to configure the 6-octet MAC Address value representing the administrative value of the Aggregation Port's protocol Partner's System ID. The valid range of
Default 00:00:00:00:00:00
Format lacp partner system id
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner system id
Use this command to configure the default value representing the administrative value of the Aggregation Port's protocol Partner's System ID.
Format no lacp partner system id
Mode Interface Config
Iacp partner system priority
Use this command to configure the administrative value of the priority associated with the Partner's System ID. The valid range for
Default 0x0
Format lacp partner system priority
Mode Interface Config

Note: This command is only applicable to physical interfaces.
no lacp partner system priority
Use this command to configure the default administrative value of priority associated with the Partner's System ID.
Format no lacp partner system priority
Mode Interface Config
port-channel static
This command enables the static mode on a port-channel (LAG) interface. By default the static mode for a new port-channel is disabled, which means the port-channel is dynamic. However if the maximum number of allowable dynamic port-channels are already present in the system, the static mode for a new port-channel enabled, which means the port-channel is static. You can only use this command on port-channel interfaces.
Default disabled
Format port-channel static
Mode Interface Config
no port-channel static
This command sets the static mode on a particular port-channel (LAG) interface to the default value. This command will be executed only for interfaces of type port-channel (LAG).
Format no port-channel static
Mode Interface Config
port lacpmode
This command enables Link Aggregation Control Protocol (LACP) on a port.
Default enabled
Format port lacpmode
Mode Interface Config
no port lacpmode
This command disables Link Aggregation Control Protocol (LACP) on a port.
Format no port lacpmode
Mode Interface Config
port lacpmode enable all
This command enables Link Aggregation Control Protocol (LACP) on all ports.
Format port lacpmode enable all
Mode Global Config
no port lacpmode enable all
This command disables Link Aggregation Control Protocol (LACP) on all ports.
Format no port lacpmode enable all
Mode Global Config
port lacptimeout (Interface Config)
This command sets the timeout on a physical interface of a particular device type (actor or partner) to either long or short timeout.
Default long
Format port lacptimeout {actor | partner} {long | short}
Mode Interface Config
no port lacptimeout
This command sets the timeout back to its default value on a physical interface of a particular device type (actor or partner).
Format no port lacptimeout {actor | partner}
Mode Interface Config
port lacptimeout (Global Config)
This command sets the timeout for all interfaces of a particular device type (actor or partner) to either long or short timeout.
Default long
Format port lacptimeout {actor | partner} {long | short}
Mode Global Config
no port lacptimeout
This command sets the timeout for all physical interfaces of a particular device type (actor or partner) back to their default values.
Format no port lacptimeout {actor | partner}
Mode Global Config
port-channel adminmode
This command enables a port-channel (LAG). This command sets every configured port-channel with the same administrative mode setting.
Format port-channel adminmode all
Mode Global Config
no port-channel adminmode
This command disables a port-channel (LAG). This command clears every configured port-channel with the same administrative mode setting.
Format no port-channel adminmode [all]
Mode Global Config
port-channel linktrap
This command enables link trap notifications for the port-channel (LAG). The interface is a logical unit/slot/port for a configured port-channel. The option all enables link trap notifications for all the configured port-channels.
Default enabled
Format port-channel linktrap {
Mode Global Config
no port-channel linktrap
This command disables link trap notifications for the port-channel (LAG). The interface is a logical slot and port for a configured port-channel. The option all disables link trap notifications for all the configured port-channels.
Format no port-channel linktrap {
Mode Global Config
hashing-mode
This command sets the hashing algorithm on Trunk ports. The command is available in the interface configuration mode for a port-channel. The mode range is in the range 1-6 as follows:
- Source MAC, VLAN, EtherType, and port ID
- Destination MAC, VLAN, EtherType, and port ID
- Source IP and source TCP/UDP port
- Destination IP and destination TCP/UDP port
- Source/Destination MAC, VLAN, EtherType and port
- Source/Destination IP and source/destination TCP/UDP port
Default 3
Format hashing-mode
Mode Interface Config
no hashing-mode
This command sets the hashing algorithm on Trunk ports to default (3). The command is available in the interface configuration mode for a port-channel.
Format no hashing-mode
Mode Interface Config
port-channel load-balance
This command selects the load-balancing option used on a port-channel (LAG). Traffic is balanced on a port-channel (LAG) by selecting one of the links in the channel over which to transmit specific packets. The link is selected by creating a binary pattern from selected fields in a packet, and associating that pattern with a particular link.
Load-balancing is not supported on every device. The range of options for load-balancing may vary per device.
Default 3
| Format | port-channel load-balance { 1 | 2 | 3 | 4 | 5 | 6 } {<unit/slot/port> |<all>} |
Mode Interface Config
Global Config
| Term Definition | |
| 1 Source MAC | VLAN, EtherType, and incoming port associated with the packet |
| 2 Destination MAC | VLAN, EtherType, and incoming port associated with the packet |
| 3 Source/Destination MAC | VLAN, EtherType, and incoming port associated with the packet |
| 4 Source IP and Source TCP/UDP fields of the packet | |
| 5 Destination IP and Destination TCP/UDP Port fields of the packet | |
| 6 Source/Destination IP and source/destination TCP/UDP Port fields of the packet | |
| | all | Global Config Mode only: The interface is a logical unit/slot/port number of a configured port-channel. "All" applies the command to all currently configured port-channels. |
no port-channel load-balance
This command reverts to the default load balancing configuration.
Format no port-channel load-balance {
Mode Interface Config
Global Config
| Term Definition | |
| Global Config Mode only: The interface is a logical unit/slot/port number of a configured port-channel. "All" applies the command to all currently configured port-channels. |
port-channel name
This command defines a name for the port-channel (LAG). The interface is a logical unit/slot/port for a configured port-channel, and
Format port-channel name {
Mode Global Config
port-channel system priority
Use this command to configure port-channel system priority. The valid range of
Default 0x8000
Format port-channel system priority
Mode Global Config
no port-channel system priority
Use this command to configure the default port-channel system priority value.
Format no port-channel system priority
Mode Global Config
show lacp actor
Use this command to display LACP actor attributes.
Format show lacp actor {
Mode Global Config
The following output parameters are displayed.
| Parameter Description | |
| System Priority | The system priority assigned to the Aggregation Port. |
| Admin Key The administrative value of the Key. | |
| Port Priority The priority value assigned to the Aggregation Port. | |
| Admin State | The administrative values of the actor state as transmitted by the Actor in LACPDUs. |
show lacp partner
Use this command to display LACP partner attributes.
Format show lacp actor {
Mode Privileged EXEC
The following output parameters are displayed.
| Parameter Description | |
| System Priority | The administrative value of priority associated with the Partner’s System ID. |
| System ID | The value representing the administrative value of the Aggregation Port’s protocol Partner’s System ID. |
| Admin Key The | administrative value of the Key for the protocol Partner. |
| Port Priority The | administrative value of the port priority for the protocol Partner. |
| Port-ID The admin | istrative value of the port number for the protocol Partner. |
| Admin State The | administrative values of the actor state for the protocol Partner. |
show port-channel brief
This command displays the static capability of all port-channel (LAG) interfaces on the device as well as a summary of individual port-channel interfaces.
Format show port-channel brief
Mode • Privileged EXEC
- User EXEC
For each port-channel the following information is displayed:
| Term Definition | |
| Logical Interface | The unit/slot/port of the logical interface. |
| Port-channel Name | The name of port-channel (LAG) interface. |
| Link-State Shows | whether the link is up or down. |
| Trap Flag Shows | whether trap flags are enabled or disabled. |
| Type Shows whether the port-channel is statically or dynamically maintained. | |
| Mbr Ports The members of this port-channel. | |
| Active Ports The ports that are actively participating in the port-channel. | |
show port-channel
This command displays the static capability of all port-channels (LAGs) on the device as well as a summary of individual port-channels.
Format show port-channel
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Static Capability | This field displays whether or not the device has static capability enabled. |
For each port-channel the following information is displayed:
| Term Definition | |
| Name This field displays the name of the port-channel. | |
| Link-State Shows | whether the link is up or down. |
| Mbr Ports | This field lists the ports that are members of this port-channel, innotation. |
| Active Ports The | ports that are actively participating in the port-channel. |
show port-channel
This command displays an overview of all port-channels (LAGs) on the switch.
Format show port-channel {
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Logical Interface | Valid unit, slot, and port number separated by forward slashes. |
| Port-Channel Name | The name of this port-channel (LAG). You may enter any string of up to 15 alphanumeric characters. |
| Link State Indicates whether the Link is up or down. | |
| Admin Mode May | be enabled or disabled. The factory default is enabled. |
| Type The status designating whether a particular port-channel (LAG) is statically or dynamically maintained.Static - The port-channel is statically maintained.Dynamic - The port-channel is dynamically maintained. | |
| Mbr Ports | A listing of the ports that are members of this port-channel (LAG), in unit/slot/port notation. There can be a maximum of eight ports assigned to a given port-channel (LAG). |
| Device Timeout | For each port, lists the timeout (long or short) for Device Type (actor or partner). |
| Port Speed Speed of the port-channel port. | |
| Ports Active This field lists ports that are actively participating in the port-channel (LAG). | |
| Load Balance Option | The load balance option associated with this LAG. See “port-channel load-balance” on page 3-107. |
show port-channel system priority
Use this command to display the port-channel system priority.
Format show port-channel system priority
Mode Privileged EXEC
Port Mirroring
Port mirroring, which is also known as port monitoring, selects network traffic that you can analyze with a network analyzer, such as a SwitchProbe device or other Remote Monitoring (RMON) probe.
monitor session
This command configures a probe port and a monitored port for monitor session (port monitoring). Use the source interface
Format monitor session
Mode Global Config
no monitor session
Use this command without optional parameters to remove the monitor session (port monitoring) designation from the source probe port, the destination monitored port and all VLANs. Once the port is removed from the VLAN, you must manually add the port to any desired VLANs. Use the source interface

Note: Since the current version of 7000 series software only supports one session, if you do not supply optional parameters, the behavior of this command is similar to the behavior of the no monitor command.
Format no monitor session
Mode Global Config
no monitor
This command removes all the source ports and a destination port for the and restores the default value for mirroring session mode for all the configured sessions.

Note: This is a stand-alone “no” command. This command does not have a “normal” form.
Default enabled
Format no monitor
Mode Global Config
show monitor session
This command displays the Port monitoring information for a particular mirroring session.

Note: The
Format show monitor session
Mode Privileged EXEC
| Term Definition | |
| Session ID | An integer value used to identify the session. Its value can be anything between 1 and the maximum number of mirroring sessions allowed on the platform. |
| Admin Mode Indicates whether the Port Mirroring feature is enabled or disabled for the session identified with. The possible values are Enabled and Disabled. | |
| Probe Port | Probe port (destination port) for the session identified with. If probe port is not set then this field is blank. |
| Mirrored Port | The port, which is configured as mirrored port (source port) for the session identified with. If no source port is configured for the session then this field is blank. |
| Type Direction in which source port configured for port mirroring.Types are tx for transmitted packets and rx for receiving packets. | |
Static MAC Filtering
The commands in this section describe how to configure static MAC filtering. Static MAC filtering allows you to configure destination ports for a static multicast MAC filter irrespective of the platform.
macfilter
This command adds a static MAC filter entry for the MAC address
The number of static mac filters supported on the system is different for MAC filters where source ports are configured and MAC filters where destination ports are configured.
- For unicast MAC address filters and multicast MAC address filters with source port lists, the maximum number of static MAC filters supported is 20.
- For multicast MAC address filters with destination ports configured, the maximum number of static filters supported is 256.
i.e. For current platforms, you can configure the following combinations:
- Unicast MAC and source port (max = 20)
- Multicast MAC and source port (max=20)
- Multicast MAC and destination port (only) (max=256)
- Multicast MAC and source ports and destination ports (max=20)
Format macfilter
Mode Global Config
no macfilter
This command removes all filtering restrictions and the static MAC filter entry for the MAC address
The
Format no macfilter
Mode Global Config
macfilter adddest
Use this command to add the interface to the destination filter set for the MAC filter with the given

Note: Configuring a destination port list is only valid for multicast MAC addresses.
Format macfilter adddest
Mode Interface Config
no macfilter adddest
This command removes a port from the destination filter set for the MAC filter with the given
Format no macfilter adddest
Mode Interface Config
macfilter adddest all
This command adds all interfaces to the destination filter set for the MAC filter with the given

Note: Configuring a destination port list is only valid for multicast MAC addresses.
Format macfilter adddest all
Mode Global Config
no macfilter adddest all
This command removes all ports from the destination filter set for the MAC filter with the given
Format no macfilter adddest all
Mode Global Config
macfilter addsrc
This command adds the interface to the source filter set for the MAC filter with the MAC address of
Format macfilter addsrc
Mode Interface Config
no macfilter addsrc
This command removes a port from the source filter set for the MAC filter with the MAC address of
Format no macfilter addsrc
Mode Interface Config
macfilter addsrc all
This command adds all interfaces to the source filter set for the MAC filter with the MAC address of
Format macfilter addsrc all
Mode Global Config
no macfilter addsrc all
This command removes all interfaces to the source filter set for the MAC filter with the MAC address of
The
Format no macfilter addsrc all
Mode Global Config
show mac-address-table static
This command displays the Static MAC Filtering information for all Static MAC Filters. If you select
Format show mac-address-table static {
Mode Privileged EXEC
| Term Definition | |
| MAC Address The MAC Address of the static MAC filter entry. | |
| VLAN ID The VLAN ID of the static MAC filter entry. | |
| Source Port(s) The source port filter set's slot and port(s). | |

Note: Only multicast address filters will have destination port lists.
show mac-address-table staticfiltering
This command displays the Static Filtering entries in the Multicast Forwarding Database (MFDB) table.
Format show mac-address-table staticfiltering
Mode Privileged EXEC
| Term Definition | |
| Mac Address | A unicast MAC address for which the switch has forwarding and or filtering information. As the data is gleaned from the MFDB, the address will be a multicast address. The format is 6 or 8 two-digit hexadecimal numbers that are separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address will be displayed as 8 bytes. |
| Type The type of | the entry. Static entries are those that are configured by the end user.Dynamic entries are added to the table as a result of a learning process or protocol. |
| Description The text description of this multicast table entry. | |
| Interfaces | The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:). |
DHCP Snooping Configuration Commands
This section describes commands you use to configure DHCP Snooping.
ip dhcp snooping
Use this command to enable DHCP Snooping globally.
Default disabled
Format ip dhcp snooping
Mode Global Config
no ip dhcp snooping
Use this command to disable DHCP Snooping globally.
Format no ip dhcp snooping
Mode Global Config
ip dhcp snooping vlan
Use this command to enable DHCP Snooping on a list of comma-separated VLAN ranges.
Default disabled
Format ip dhcp snooping vlan
Mode Global Config
no ip dhcp snooping vlan
Use this command to disable DHCP Snooping on VLANs.
Format no ip dhcp snooping vlan
Mode Global Config
ip dhcp snooping verify mac-address
Use this command to enable verification of the source MAC address with the client hardware address in the received DCHP message.
Default enabled
Format ip dhcp snooping verify mac-address
Mode Global Config
no ip dhcp snooping verify mac-address
Use this command to disable verification of the source MAC address with the client hardware address.
Format no ip dhcp snooping verify mac-address
Mode Global Config
ip dhcp snooping database
Use this command to configure the persistent location of the DHCP Snooping database. This can be local or a remote file on a given IP machine.
Default local
Format ip dhcp snooping database {local|tftp://hostIP/filename}
Mode Global Config
ip dhcp snooping database write-delay
Use this command to configure the interval in seconds at which the DHCP Snooping database will be persisted. The interval value ranges from 15 to 86400 seconds.
Default 300 seconds
Format ip dhcp snooping database write-delay
Mode Global Config
no ip dhcp snooping database write-delay
Use this command to set the write delay value to the default value.
Format no ip dhcp snooping database write-delay
Mode Global Config
ip dhcp snooping binding
Use this command to configure static DHCP Snooping binding.
Format ip dhcp snooping binding
Mode Global Config
no ip dhcp snooping binding
Use this command to remove the DHCP static entry from the DHCP Snooping database.
Format no ip dhcp snooping binding
Mode Global Config
ip verify binding
Use this command to configure static IP source guard (IPSG) entries.
Format ip verify binding
Mode Global Config
no ip verify binding
Use this command to remove the IPSG static entry from the IPSG database.
Format no ip verify binding
Mode Global Config
ip dhcp snooping limit
Use this command to control the rate at which the DHCP Snooping messages come. The default rate is 15 pps with a range from 0 to 30 pps. The default burst level is 1 second with a range of 1 to 15 seconds.
Default 15 pps for rate limiting and 1 sec for burst interval
Format ip dhcp snooping limit {rate pps [burst interval seconds]}
Mode Interface Config
no ip dhcp snooping limit
Use this command to set the rate at which the DHCP Snooping messages come, and the burst level, to the defaults.
Format no ip dhcp snooping limit
Mode Interface Config
ip dhcp snooping log-invalid
Use this command to control the logging DHCP messages filtration by the DHCP Snooping application.
Default disabled
Format ip dhcp snooping log-invalid
Mode Interface Config
no ip dhcp snooping log-invalid
Use this command to disable the logging DHCP messages filtration by the DHCP Snooping application.
Format no ip dhcp snooping log-invalid
Mode Interface Config
ip dhcp snooping trust
Use this command to configure the port as trusted.
Default disabled
Format ip dhcp snooping trust
Mode Interface Config
no ip dhcp snooping trust
Use this command to configure the port as untrusted.
Format no ip dhcp snooping trust
Mode Interface Config
ip verify source
Use this command to configure the IPSG source ID attribute to filter the data traffic in the hardware. Source ID is the combination of IP address and MAC address. Normal command allows data traffic filtration based on the IP address. With the “port-security” option, the data traffic will be filtered based on the IP and MAC addresses.
Default the source ID is the IP address
Format ip verify source {port-security}
Mode Interface Config
no ip verify source
Use this command to disable the IPSG configuration in the hardware. You cannot disable port-security alone if it is configured.
Format no ip verify source
Mode Interface Config
show ip dhcp snooping
Use this command to display the DHCP Snooping global configurations and per port configurations.
Format show ip dhcp snooping
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The interface for which data is displayed. | |
| Trusted | If it is enabled, DHCP snooping considers the port as trusted. The factory default is disabled. |
| Log Invalid Pkts | If it is enabled, DHCP snooping application logs invalid packets on the specified interface. |
Example: The following shows example CLI display output for the command.
(switch) #show ip dhcp snooping
DHCP snooping is Disabled DHCP snooping source MAC verification is enabled DHCP snooping is enabled on the following VLANs: 11 - 30, 40
| Interface | Trusted | Log Invalid Pkts |
| 0/1 | Yes | No |
| 0/2 | No | Yes |
| 0/3 | No | Yes |
| 0/4 | No | No |
| 0/6 | No | No |
show ip dhcp snooping binding
Use this command to display the DHCP Snooping binding entries. To restrict the output, use the following options:
- Dynamic: Restrict the output based on DCHP snooping.
- Interface: Restrict the output based on a specific interface.
- Static: Restrict the output based on static entries.
• VLAN: Restrict the output based on VLAN.
Format show ip dhcp snooping binding [{static/dynamic}] [interface unit/slot/port] [vlan id]
Mode • Privileged EXEC • User EXEC
| Term Definition | |
| MAC Address | Displays the MAC address for the binding that was added. The MAC address is the key to the binding database. |
| IP Address Displays the valid IP address for the binding rule. | |
| VLAN The VLAN for the binding rule. | |
| Interface The interface to add a binding into the DHCP snooping interface. | |
| Type Binding type; statically configured from the CLI or dynamically learned. | |
| Lease (sec) The remaining lease time for the entry. | |
Example: The following shows example CLI display output for the command.
(switch) #show ip dhcp snooping binding
Total number of bindings: 2
| MAC Address | IP Address | VLAN | Interface | Type | Lease (Secs) |
| 00:02:B3:06:60:80 | 210.1.1.3 | 10 | 0/1 | 86400 | |
| 00:0F:FE:00:13:04 | 210.1.1.4 | 10 | 0/1 | 86400 |
show ip dhcp snooping database
Use this command to display the DHCP Snooping configuration related to the database persistency.
Format show ip dhcp snooping database
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Agent URL Bindings database agent URL. | |
| Write Delay The maximum write time to write the database into local or remote. | |
Example: The following shows example CLI display output for the command.
(switch) #show ip dhcp snooping database
agent url: /10.131.13.79:/sail.txt
write-delay: 5000
show ip dhcp snooping statistics
Use this command to list statistics for DHCP Snooping security violations on untrusted ports.
Format show ip dhcp snooping statistics
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The IP address of the interface in unit/slot/port format. | |
| MAC Verify Failures | Represents the number of DHCP messages that were filtered on an untrusted interface because of source MAC address and client HW address mismatch. |
| Client Ifc Mismatch | Represents the number of DHCP release and Deny messages received on the different ports than learned previously. |
| DHCP Server Msgs Rec’d | Represents the number of DHCP server messages received on Untrusted ports. |
Example: The following shows example CLI display output for the command.
(switch) #show ip dhcp snooping statistics
| Interface | MAC Verify Failures | Client Ifc Mismatch | DHCP Server Msgs Rec'd |
| 1/0/2 | 0 | 0 | 0 |
| 1/0/3 | 0 | 0 | 0 |
| 1/0/4 | 0 | 0 | 0 |
| 1/0/5 | 0 | 0 | 0 |
| 1/0/6 | 0 | 0 | 0 |
| 1/0/7 | 0 | 0 | 0 |
| 1/0/8 | 0 | 0 | 0 |
| 1/0/9 | 0 | 0 | 0 |
| 1/0/10 | 0 | 0 | 0 |
| 1/0/11 | 0 | 0 | 0 |
| 1/0/12 | 0 | 0 | 0 |
| 1/0/13 | 0 | 0 | 0 |
| 1/0/14 | 0 | 0 | 0 |
| 1/0/15 | 0 | 0 | 0 |
| 1/0/16 | 0 | 0 | 0 |
| 1/0/17 | 0 | 0 | 0 |
| 1/0/18 | 0 | 0 | 0 |
| 1/0/19 | 0 | 0 | 0 |
| 1/0/20 | 0 | 0 | 0 |
clear ip dhcp snooping binding
Use this command to clear all DHCP Snooping bindings on all interfaces or on a specific interface.
Format clear ip dhcp snooping binding [interface
Mode • Privileged EXEC • User EXEC
clear ip dhcp snooping statistics
Use this command to clear all DHCP Snooping statistics.
Format clear ip dhcp snooping statistics
Mode • Privileged EXEC • User EXEC
show ip verify source
Use this command to display the IPSG configurations on all ports.
Format show ip verify source
Mode • Privileged EXEC • User EXEC
| Term Definition | |
| Interface Interface | address in unit/slot/port format. |
| Filter Type Is one | of two values:ip-mac:User has configured MAC address filtering on this interface.ip:Only IP address filtering on this interface. |
| IP Address IP address of the interface | |
| MAC Address | If MAC address filtering is not configured on the interface, the MAC Address field is empty. If port security is disabled on the interface, then the MAC Address field displays “permit-all.” |
| VLAN The VLAN | for the binding rule. |
Example: The following shows example CLI display output for the command.
(switch) #show ip verify source
| Interface | Filter Type | IP Address | MAC Address | Vlan |
| 0/1 | ip-mac | 210.1.1.3 | 00:02:B3:06:60:80 | 10 |
| 0/1 | ip-mac | 210.1.1.4 | 00:0F:FE:00:13:04 | 10 |
show ip source binding
Use this command to display the IPSG bindings.
Format show ip source binding [{static/dynamic}] [interface unit/slot/port] [vlan id]
Mode • Privileged EXEC • User EXEC
| Term Definition | |
| MAC Address The MAC address for the entry that is added. | |
| IP Address The IP address of the entry that is added. | |
| Type Entry type; statically configured from CLI or dynamically learned from DHCP Snooping. | |
| VLAN VLAN for the entry. | |
| Interface IP address of the interface in unit/slot/port format. | |
Example: The following shows example CLI display output for the command.
(switch) #show ip source binding
| MAC Address | IP Address | Type | Vlan | Interface |
| 00:00:00:00:00:08 | 1.2.3.4 | dhcp-snooping | 2 | 1/0/1 |
| 00:00:00:00:00:09 | 1.2.3.4 | dhcp-snooping | 3 | 1/0/1 |
| 00:00:00:00:00:0A | 1.2.3.4 | dhcp-snooping | 4 | 1/0/1 |
Dynamic ARP Inspection Commands
Dynamic ARP Inspection (DAI) is a security feature that rejects invalid and malicious ARP packets. DAI prevents a class of man-in-the-middle attacks, where an unfriendly station intercepts traffic for other stations by poisoning the ARP caches of its unsuspecting neighbors. The miscreant sends ARP requests or responses mapping another station's IP address to its own MAC address.
DAI relies on DHCP snooping. DHCP snooping listens to DHCP message exchanges and builds a binding database of valid {MAC address, IP address, VLAN, and interface} tuples.
When DAI is enabled, the switch drops ARP packets whose sender MAC address and sender IP address do not match an entry in the DHCP snooping bindings database. You can optionally configure additional ARP packet validation.
ip arp inspection vlan
Use this command to enable Dynamic ARP Inspection on a list of comma-separated VLAN ranges.
Default disabled
Format ip arp inspection vlan vlan-list
Mode Global Config
no ip arp inspection vlan
Use this command to disable Dynamic ARP Inspection on a list of comma-separated VLAN ranges.
Format no ip arp inspection vlan vlan-list
Mode Global Config
ip arp inspection validate
Use this command to enable additional validation checks like source-mac validation, destination-mac validation, and ip address validation on the received ARP packets. Each command overrides the configuration of the previous command. For example, if a command enables src-mac and dst-mac validations, and a second command enables IP validation only, the src-mac and dst-mac validations are disabled as a result of the second command.
Default disabled
Format ip arp inspection validate { [src-mac] [dst-mac] [ip]}
Mode Global Config
no ip arp inspection validate
Use this command to disable the additional validation checks on the received ARP packets.
Format no ip arp inspection validate { [src-mac] [dst-mac] [ip]}
Mode Global Config
ip arp inspection vlan logging
Use this command to enable logging of invalid ARP packets on a list of comma-separated VLAN ranges.
Default enabled
Format ip arp inspection vlan vlan-list logging
Mode Global Config
no ip arp inspection vlan logging
Use this command to disable logging of invalid ARP packets on a list of comma-separated VLAN ranges.
Format no ip arp inspection vlan vlan-list logging
Mode Global Config
ip arp inspection trust
Use this command to configure an interface as trusted for Dynamic ARP Inspection.
Default enabled
Format ip arp inspection trust
Mode Interface Config
no ip arp inspection trust
Use this command to configure an interface as untrusted for Dynamic ARP Inspection.
Format no ip arp inspection trust
Mode Interface Config
ip arp inspection limit
Use this command to configure the rate limit and burst interval values for an interface. Configuring none for the limit means the interface is not rate limited for Dynamic ARP Inspections.

Note: The user interface will accept a rate limit for a trusted interface, but the limit will not be enforced unless the interface is configured to be untrusted.
Default 15 pps for rate and 1 second for burst-interval
Format ip arp inspection limit {rate pps [burst interval seconds] | none}
Mode Interface Config
no ip arp inspection limit
Use this command to set the rate limit and burst interval values for an interface to the default values of 15 pps and 1 second, respectively.
Format no ip arp inspection limit
Mode Interface Config
ip arp inspection filter
Use this command to configure the ARP ACL used to filter invalid ARP packets on a list of comma-separated VLAN ranges. If the static keyword is given, packets that do not match a permit statement are dropped without consulting the DHCP snooping bindings.
Default No ARP ACL is configured on a VLAN
Format ip arp inspection filter acl-name vlan vlan-list [static]
Mode Global Config
no ip arp inspection filter
Use this command to unconfigure the ARP ACL used to filter invalid ARP packets on a list of comma-separated VLAN ranges.
Format no ip arp inspection filter acl-name vlan vlan-list [static]
Mode Global Config
arp access-list
Use this command to create an ARP ACL.
Format arp access-list acl-name
Mode Global Config
no arp access-list
Use this command to delete a configured ARP ACL.
Format no arp access-list acl-name
Mode Global Config
permit ip host mac host
Use this command to configure a rule for a valid IP address and MAC address combination used in ARP packet validation.
Format permit ip host sender-ip mac host sender-mac
Mode ARP Access-list Config
no permit ip host mac host
Use this command to delete a rule for a valid IP and MAC combination.
Format no permit ip host sender-ip mac host sender-mac
Mode ARP Access-list Config
show ip arp inspection
Use this command to display the Dynamic ARP Inspection global configuration and configuration on all the VLANs. With the vlan-list argument (i.e. comma separated VLAN ranges), the command displays the global configuration and configuration on all the VLANs in the given VLAN list. The global configuration includes the source mac validation, destination mac validation and invalid IP validation information.
Format show ip arp inspection [vlan
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Source MAC Validation | Displays whether Source MAC Validation of ARP frame is enabled or disabled. |
| Destination MAC Validation | Displays whether Destination MAC Validation is enabled or disabled. |
| IP Address Validation | Displays whether IP Address Validation is enabled or disabled. |
| VLAN The VLAN ID for each displayed row. | |
| Configuration Displays whether DAI is enabled or disabled on the VLAN. | |
| Log Invalid Displays whether logging of invalid ARP packets is enabled on the VLAN. | |
| ACL Name The ARP ACL Name, if configured on the VLAN. | |
| Static Flag If the ARP ACL is configured static on the VLAN. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ip arp inspection vlan 10-12
Source Mac Validation : Disabled Destination Mac Validation : Disabled IP Address Validation : Disabled
| Vlan | Configuration | Log Invalid | ACL Name | Static flag |
| 10 | Enabled | Enabled | H2 | Enabled |
| 11 | Disabled | Enabled | ||
| 12 | Enabled | Disabled |
show ip arp inspection statistics
Use this command to display the statistics of the ARP packets processed by Dynamic ARP Inspection. Give the vlan-list argument and the command displays the statistics on all DAI-enabled VLANs in that list. Give the single vlan argument and the command displays the statistics on that VLAN. If no argument is included, the command lists a summary of the forwarded and dropped ARP packets.
Format show ip arp inspection statistics [vlan vlan-list]
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| VLAN The VLAN ID for each displayed row. | |
| Forwarded The total number of valid ARP packets forwarded in this VLAN. | |
| Dropped The total number of not valid ARP packets dropped in this VLAN. | |
| DHCP Drops The number of packets dropped due to DHCP snooping binding database match failure. | |
| ACL Drops The number of packets dropped due to ARP ACL rule match failure. | |
| DHCP Permits The number of packets permitted due to DHCP snooping binding database match. | |
| ACL Permits The number of packets permitted due to ARP ACL rule match. | |
| Bad Src MAC The number of packets dropped due to Source MAC validation failure. | |
| Bad Dest MAC The number of packets dropped due to Destination MAC validation failure. | |
| Invalid IP The number of packets dropped due to invalid IP checks. | |
Example: The following shows example CLI display output for the command show ip arp inspection statistics which lists the summary of forwarded and dropped ARP packets on all DAI-enabled VLANs.
| VLAN | Forwarded | Dropped |
| 10 | 90 | 14 |
| 20 | 10 | 3 |
Example: The following shows example CLI display output for the command show ip arp inspection statistics vlan
| VLAN | DHCP | ACL | DHCP | ACL | Bad Src | Bad Dest | Invalid |
| Drops | Drops | Permits | Permits | MAC | MAC | IP |
| 10 | 11 | 1 | 65 | 25 | 1 | 1 | 0 |
| 20 | 1 | 0 | 8 | 2 | 0 | 1 | 1 |
clear ip arp inspection statistics
Use this command to reset the statistics for Dynamic ARP Inspection on all VLANs.
Default none
Format clear ip arp inspection statistics
Mode Privileged EXEC
show ip arp inspection interfaces
Use this command to display the Dynamic ARP Inspection configuration on all the DAI-enabled interfaces. An interface is said to be enabled for DAI if at least one VLAN, that the interface is a member of, is enabled for DAI. Given a unit/slot/port interface argument, the command displays the values for that interface whether the interface is enabled for DAI or not.
Format show ip arp inspection interfaces [unit/slot/port]
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The interface ID for each displayed row. | |
| Trust State Whether the interface is trusted or untrusted for DAI. | |
| Rate Limit The configured rate limit value in packets per second. | |
| Burst Interval | The configured burst interval value in seconds. |
Example: The following shows example CLI display output for the command.
(Switch) #show ip arp inspection interfaces
| Interface | Trust State | Rate Limit(pps) | Burst Interval(seconds) |
| 0/1 | Untrusted | 15 | 1 |
0/2
Untrusted
10
10
show arp access-list
Use this command to display the configured ARP ACLs with the rules. Giving an ARP ACL name as the argument will display on ly the rules in that ARP ACL.
Format show arp access-list [acl-name]
Mode • Privileged EXEC
- User EXEC
Example: The following shows example CLI display output for the command.
(Switch) #show arp access-list
ARP access list H2
permit ip host 1.1.1.1 mac host 00:01:02:03:04:05
permit ip host 1.1.1.2 mac host 00:03:04:05:06:07
ARP access list H3
ARP access list H4
permit ip host 2.1.1.2 mac host 00:03:04:05:06:08
IGMP Snooping Configuration Commands
This section describes the commands you use to configure IGMP snooping. The software supports IGMP Versions 1, 2, and 3. The IGMP snooping feature can help conserve bandwidth because it allows the switch to forward IP multicast traffic only to connected hosts that request multicast traffic. IGMPv3 adds source filtering capabilities to IGMP versions 1 and 2.
set igmp
This command enables IGMP Snooping on the system (Global Config Mode) or an interface (Interface Config Mode). This command also enables IGMP snooping on a particular VLAN (VLAN Config Mode) and can enable IGMP snooping on all interfaces participating in a VLAN.
If an interface has IGMP Snooping enabled and you enable this interface for routing or enlist it as a member of a port-channel (LAG), IGMP Snooping functionality is disabled on that interface. IGMP Snooping functionality is re-enabled if you disable routing or remove port-channel (LAG) membership from an interface that has IGMP Snooping enabled.
The IGMP application supports the following activities:
- Validation of the IP header checksum (as well as the IGMP header checksum) and discarding of the frame upon checksum error.
- Maintenance of the forwarding table entries based on the MAC address versus the IP address.
- Flooding of unregistered multicast data packets to all ports in the VLAN.
Default disabled
Format set igmp
Mode · Global Config
- Interface Config
Format set igmp
Mode VLAN Config
no set igmp
This command disables IGMP Snooping on the system, an interface or a VLAN.
Format no set igmp
Mode · Global Config
- Interface Config
Format no set igmp
Mode VLAN Config
set igmp interfacemode
This command enables IGMP Snooping on all interfaces. If an interface has IGMP Snooping enabled and you enable this interface for routing or enlist it as a member of a port-channel (LAG), IGMP Snooping functionality is disabled on that interface. IGMP Snooping functionality is re-enabled if you disable routing or remove port-channel (LAG) membership from an interface that has IGMP Snooping enabled.
Default disabled
Format set igmp interfacemode
Mode Global Config
no set igmp interfacemode
This command disables IGMP Snooping on all interfaces.
Format no set igmp interfacemode
Mode Global Config
set igmp fast-leave
This command enables or disables IGMP Snooping fast-leave admin mode on a selected interface or VLAN. Enabling fast-leave allows the switch to immediately remove the layer 2 LAN interface from its forwarding table entry upon receiving an IGMP leave message for that multicast group without first sending out MAC-based general queries to the interface.
You should enable fast-leave admin mode only on VLANs where only one host is connected to each layer 2 LAN port. This prevents the inadvertent dropping of the other hosts that were connected to the same layer 2 LAN port but were still interested in receiving multicast traffic directed to that group. Also, fast-leave processing is supported only with IGMP version 2 hosts.
Default disabled
Format set igmp fast-leave
Mode Interface Config
Format set igmp fast-leave
Mode VLAN Config
no set igmp fast-leave
This command disables IGMP Snooping fast-leave admin mode on a selected interface.
Format no set igmp fast-leave
Mode Interface Config
Format no set igmp fast-leave
Mode VLAN Config
set igmp groupmembership-interval
This command sets the IGMP Group Membership Interval time on a VLAN, one interface or all interfaces. The Group Membership Interval time is the amount of time in seconds that a switch waits for a report from a particular group on a particular interface before deleting the interface from the entry. This value must be greater than the IGMPv3 Maximum Response time value. The range is 2 to 3600 seconds.
Default 260 seconds
Format set igmp groupmembership-interval <2-3600>
Mode · Interface Config
- Global Config
Format set igmp groupmembership-interval
Mode VLAN Config
no set igmp groupmembership-interval
This command sets the IGMPv3 Group Membership Interval time to the default value.
Format no set igmp groupmembership-interval
Mode • Interface Config
- Global Config
Format no set igmp groupmembership-interval
Mode VLAN Config
set igmp maxresponse
This command sets the IGMP Maximum Response time for the system, or on a particular interface or VLAN. The Maximum Response time is the amount of time in seconds that a switch will wait after sending a query on an interface because it did not receive a report for a particular group in that interface. This value must be less than the IGMP Query Interval time value. The range is 1 to 25 seconds.
Default 10 seconds
Format set igmp maxresponse <1-25>
Mode • Global Config
- Interface Config
Format set igmp maxresponse
Mode VLAN Config
no set igmp maxresponse
This command sets the max response time (on the interface or VLAN) to the default value.
Format no set igmp maxresponse
Mode · Global Config
- Interface Config
Format no set igmp maxresponse
Mode VLAN Config
set igmp mcrtrexpiretime
This command sets the Multicast Router Present Expiration time. The time is set for the system, on a particular interface or VLAN. This is the amount of time in seconds that a switch waits for a query to be received on an interface before the interface is removed from the list of interfaces with multicast routers attached. The range is 0 to 3600 seconds. A value of 0 indicates an infinite timeout, i.e. no expiration.
Default 0
Format set igmp mcrtrexpiretime <0-3600>
Mode · Global Config
- Interface Config
Format set igmp mcrtrexpiretime
Mode VLAN Config
no set igmp mcrtrexpiretime
This command sets the Multicast Router Present Expiration time to 0. The time is set for the system, on a particular interface or a VLAN.
Format no set igmp mcrtrexpiretime
Mode · Global Config
- Interface Config
Format no set igmp mcrtrexpiretime
Mode VLAN Config
set igmp mrouter
This command configures the VLAN ID (
Format set igmp mrouter
Mode Interface Config
no set igmp mrouter
This command disables multicast router mode for a particular VLAN ID (
Format no set igmp mrouter
Mode Interface Config
set igmp mrouter interface
This command configures the interface as a multicast router interface. When configured as a multicast router interface, the interface is treated as a multicast router interface in all VLANs.
Default disabled
Format set igmp mrouter interface
Mode Interface Config
no set igmp mrouter interface
This command disables the status of the interface as a statically configured multicast router interface.
Format no set igmp mrouter interface
Mode Interface Config
ip igmpsnooping unknown-multicast
This command enables the filtering of unknown multicast packets to the VLAN. Packets with an unknown mulicast address in the destination field will be dropped. This command is mainly used when IGMP snooping is enabled, to prevent flooding of unwanted multicast packets to every port.
Format ip igmpsnooping unknown-multicast
Mode Global Config
no ip igmpsnooping unknown-multicast
This command disables the filtering of unknown multicast packets. Unknown multicast packets will be flooded to all ports in the same VLAN.
Format no ip igmpsnooping unknown-multicast
Mode Global Config
show igmpsnooping
This command displays IGMP Snooping information. Configured information is displayed whether or not IGMP Snooping is enabled.
Format show igmpsnooping [
Mode Privileged EXEC
When the optional arguments
| Term Definition | |
| Admin Mode Indicates whether or not IGMP Snooping is active on the switch. | |
| Multicast Control Frame Count | The number of multicast control frames that are processed by the CPU. |
| Interface Enabled for IGMP Snooping | The list of interfaces on which IGMP Snooping is enabled. |
| VLANS Enabled for IGMP Snooping | The list of VLANS on which IGMP Snooping is enabled. |
When you specify the
| Term Definition | |
| IGMP Snooping Admin Mode | Indicates whether IGMP Snooping is active on the interface. |
| Fast Leave Mode | Indicates whether IGMP Snooping Fast-leave is active on the interface. |
| Group Membership Interval | The amount of time in seconds that a switch will wait for a report from a particular group on a particular interface before deleting the interface from the entry. This value may be configured. |
| Maximum Response Time | The amount of time the switch waits after it sends a query on an interface because it did not receive a report for a particular group on that interface. This value may be configured. |
| Multicast Router Expiry Time | The amount of time to wait before removing an interface from the list of interfaces with multicast routers attached. The interface is removed if a query is not received. This value may be configured. |
When you specify a value for
| Term Definition | |
| VLAN ID The VLAN ID. | |
| IGMP Snooping Admin Mode | Indicates whether IGMP Snooping is active on the VLAN. |
| Fast Leave Mode | Indicates whether IGMP Snooping Fast-leave is active on the VLAN. |
| Group Membership Interval | The amount of time in seconds that a switch will wait for a report from a particular group on a particular interface, which is participating in the VLAN, before deleting the interface from the entry. This value may be configured. |
| Maximum Response Time | The amount of time the switch waits after it sends a query on an interface, participating in the VLAN, because it did not receive a report for a particular group on that interface. This value may be configured. |
| Multicast Router Expiry Time | The amount of time to wait before removing an interface that is participating in the VLAN from the list of interfaces with multicast routers attached. The interface is removed if a query is not received. This value may be configured. |
show igmpsnooping mrouter interface
This command displays information about statically configured ports.
Format show igmpsnooping mrouter interface
Mode Privileged EXEC
| Term Definition | |
| Interface The port | on which multicast router information is being displayed. |
| Multicast Router Attached | Indicates whether multicast router is statically enabled on the interface. |
| VLAN ID The list of VLANs of which the interface is a member. | |
show igmpsnooping mrouter vlan
This command displays information about statically configured ports.
Format show igmpsnooping mrouter vlan
Mode Privileged EXEC
| Term Definition | |
| Interface The port | on which multicast router information is being displayed. |
| VLAN ID The list of VLANs of which the interface is a member. | |
show mac-address-table igmpsnooping
This command displays the IGMP Snooping entries in the MFDB table.
Format show mac-address-table igmpsnooping
Mode Privileged EXEC
| Term Definition | |
| MAC Address | A multicast MAC address for which the switch has forwarding or filtering information. The format is two-digit hexadecimal numbers that are separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address is displayed as a MAC address and VLAN ID combination of 8 bytes. |
| Type | The type of the entry, which is either static (added by the user) or dynamic (added to the table as a result of a learning process or protocol). |
| Description The text description of this multicast table entry. | |
| Interfaces | The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:). |
IGMP Snooping Querier Commands
IGMP Snooping requires that one central switch or router periodically query all end-devices on the network to announce their multicast memberships. This central device is the “IGMP Querier”. The IGMP query responses, known as IGMP reports, keep the switch updated with the current multicast group membership on a port-by-port basis. If the switch does not receive updated membership information in a timely fashion, it will stop forwarding multicasts to the port where the end device is located.
This section describes commands used to configure and display information on IGMP Snooping Queriers on the network and, separately, on VLANs.
set igmp querier
Use this command to enable IGMP Snooping Querier on the system, using Global Config mode, or on a VLAN. Using this command, you can specify the IP Address that the Snooping Querier switch should use as the source address while generating periodic queries.
If a VLAN has IGMP Snooping Querier enabled and IGMP Snooping is operationally disabled on it, IGMP Snooping Querier functionality is disabled on that VLAN. IGMP Snooping functionality is re-enabled if IGMP Snooping is operational on the VLAN.

Note: The Querier IP Address assigned for a VLAN takes preference over global configuration.
The IGMP Snooping Querier application supports sending periodic general queries on the VLAN to solicit membership reports.
Default disabled
Format set igmp querier [
Mode • Global Config
- VLAN Mode
no set igmp querier
Use this command to disable IGMP Snooping Querier on the system. Use the optional address parameter to reset the querier address to 0.0.0.0.
Format no set igmp querier [
Mode · Global Config
- VLAN Mode
set igmp querier query-interval
Use this command to set the IGMP Querier Query Interval time. It is the amount of time in seconds that the switch waits before sending another general query.
Default disabled
Format set igmp querier query-interval <1-18000>
Mode Global Config
no set igmp querier query-interval
Use this command to set the IGMP Querier Query Interval time to its default value.
Format no set igmp querier query-interval
Mode Global Config
set igmp querier timer expiry
Use this command to set the IGMP Querier timer expiration period. It is the time period that the switch remains in Non-Querier mode once it has discovered that there is a Multicast Querier in the network.
Default 60 seconds
Format set igmp querier timer expiry <60-300>
Mode Global Config
no set igmp querier timer expiry
Use this command to set the IGMP Querier timer expiration period to its default value.
Format no set igmp querier timer expiry
Mode Global Config
set igmp querier version
Use this command to set the IGMP version of the query that the snooping switch is going to send periodically.
Default 1
Format set igmp querier version <1-2>
Mode Global Config
no set igmp querier version
Use this command to set the IGMP Querier version to its default value.
Format no set igmp querier version
Mode Global Config
set igmp querier election participate
Use this command to enable the Snooping Querier to participate in the Querier Election process when it discovers the presence of another Querier in the VLAN. When this mode is enabled, if the Snooping Querier finds that the other Querier's source address is better (less) than the Snooping Querier's address, it stops sending periodic queries. If the Snooping Querier wins the election, then it will continue sending periodic queries.
Default disabled
Format set igmp querier election participate
Mode VLAN Config
no set igmp querier election participate
Use this command to set the Snooping Querier not to participate in querier election but go into non-querier mode as soon as it discovers the presence of another querier in the same VLAN.
Format no set igmp querier election participate
Mode VLAN Config
show igmpsnooping querier
Use this command to display IGMP Snooping Querier information. Configured information is displayed whether or not IGMP Snooping Querier is enabled.
Format show igmpsnooping querier [{detail | vlan
Mode Privileged EXEC
When the optional argument
| Field Description | |
| Admin Mode Indicates whether or not IGMP Snooping Querier is active on the switch. | |
| Admin Version The version of IGMP that will be used while sending out the queries. | |
| Querier Address | The IP Address which will be used in the IPv4 header while sending out IGMP queries. It can be configured using the appropriate command. |
| Query Interval | The amount of time in seconds that a Snooping Querier waits before sending out the periodic general query. |
| Querier Timeout | The amount of time to wait in the Non-Querier operational state before moving to a Querier state. |
When you specify a value for
| Field Description | |
| VLAN Admin Mode | Indicates whether iGMP Snooping Querier is active on the VLAN. |
| VLAN Operational State | Indicates whether IGMP Snooping Querier is in “Querier” or “Non-Querier” state. When the switch is in Querier state, it will send out periodic general queries. When in Non-Querier state, it will wait for moving to Querier state and does not send out any queries. |
| VLAN Operational Max Response Time | Indicates the time to wait before removing a Leave from a host upon receiving a Leave request. This value is calculated dynamically from the Queries received from the network. If the Snooping Switch is in Querier state, then it is equal to the configured value. |
| Querier Election Participation | Indicates whether the IGMP Snooping Querier participates in querier election if it discovers the presence of a querier in the VLAN. |
| Querier VLAN Address | The IP address will be used in the IPv4 header while sending out IGMP queries on this VLAN. It can be configured using the appropriate command. |
| Operational Version | The version of IPv4 will be used while sending out IGMP queries on this VLAN. |
| Last Querier Address | Indicates the IP address of the most recent Querier from which a Query was received. |
| Last Querier Version | Indicates the IGMP version of the most recent Querier from which a Query was received on this VLAN. |
When the optional argument detail is used, the command shows the global information and the information for all Querier-enabled VLANs.
MLD Snooping Commands
This section describes commands used for MLD Snooping. In IPv4, Layer 2 switches can use IGMP Snooping to limit the flooding of multicast traffic by dynamically configuring Layer 2 interfaces so that multicast traffic is forwarded only to those interfaces associated with IP multicast addresses. In IPv6, MLD Snooping performs a similar function. With MLD Snooping, IPv6 multicast data is selectively forwarded to a list of ports that want to receive the data, instead of being flooded to all ports in a VLAN. This list is constructed by snooping IPv6 multicast control packets.
set mld
This command enables MLD Snooping on the system (Global Config Mode) or an Interface (Interface Config Mode). This command also enables MLD Snooping on a particular VLAN and enables MLD Snooping on all interfaces participating in a VLAN.
If an interface has MLD Snooping enabled and you enable this interface for routing or enlist it as a member of a port-channel (LAG), MLD Snooping functionality is disabled on that interface. MLD Snooping functionality is re-enabled if you disable routing or remove port channel (LAG) membership from an interface that has MLD Snooping enabled.
MLD Snooping supports the following activities:
- Validation of address version, payload length consistencies and discarding of the frame upon error.
- Maintenance of the forwarding table entries based on the MAC address versus the IPv6 address.
- Flooding of unregistered multicast data packets to all ports in the VLAN.
Default disabled
Format set mld
Mode Global Config Interface Config
Default disabled
Format set mld
Mode VLAN Mode
no set mld
Use this command to disable MLD Snooping on the system.
Format no set mld
Mode Global Config Interface Config
Format no set mld
Mode VLAN Mode
set mld interfacemode
Use this command to enable MLD Snooping on all interfaces. If an interface has MLD Snooping enabled and you enable this interface for routing or enlist it as a member of a port-channel (LAG), MLD Snooping functionality is disabled on that interface. MLD Snooping functionality is re-enabled if you disable routing or remove port-channel (LAG) membership from an interface that has MLD Snooping enabled.
Default disabled
Format set mld interfacemode
Mode Global Config
no set mld interfacemode
Use this command to disable MLD Snooping on all interfaces.
Format no set mld interfacemode
Mode Global Config
set mld fast-leave
Use this command to enable MLD Snooping fast-leave admin mode on a selected interface or VLAN. Enabling fast-leave allows the switch to immediately remove the Layer 2 LAN interface from its forwarding table entry upon receiving and MLD done message for that multicast group without first sending out MAC-based general queries to the interface.

Note: You should enable fast-leave admin mode only on VLANs where only one host is connected to each Layer 2 LAN port. This prevents the inadvertent dropping of the other hosts that were connected to the same layer 2 LAN port but were still interested in receiving multicast traffic directed to that group.

Note: Fast-leave processing is supported only with MLD version 1 hosts.
Default disabled
Format set mld fast-leave
Mode • VLAN Mode
Default disabled
Format set mld fast-leave
Mode · Interface Config
no set mld fast-leave
Use this command to disable MLD Snooping fast-leave admin mode on a selected interface.
Format no set mld fast-leave
Mode · VLAN Mode
Format no set mld fast-leave
Mode · Interface Config
set mld groupmembership-interval
Use this command to set the MLD Group Membership Interval time on a VLAN, one interface or all interfaces. The Group Membership Interval time is the amount of time in seconds that a switch waits for a report from a particular group on a particular interface before deleting the interface from the entry. This value must be greater than the MLDv2 Maximum Response time value. The range is 2 to 3600 seconds.
Default 260 seconds
Format set mld groupmembership-interval
Mode · VLAN Mode
Default 260 seconds
Format set mld groupmembership-interval <2-3600>
Mode · Interface Config
- Global Config
no set groupmembership-interval
Use this command to set the MLDv2 Group Membership Interval time to the default value.
Format no set mld groupmembership-interval
Mode · VLAN Mode
Format no set mld groupmembership-interval
Mode · Interface Config
- Global Config
set mld maxresponse
Use this command to set the MLD Maximum Response time for the system, on a particular interface or VLAN. The Maximum Response time is the amount of time in seconds that a switch will wait after sending a query on an interface because it did not receive a report for a particular group in that interface. This value must be less than the MLD Query Interval time value. The range is 1 to 65 seconds.
Default 10 seconds
Format set mld maxresponse <1-65>
Mode · Global Config
- Interface Config
Default 10 seconds
Format set mld maxresponse
Mode • VLAN Mode
no set mld maxresponse
Use this command to set the max response time (on the interface or VLAN) to the default value.
Format no set mld maxresponse
Mode • Global Config
- Interface Config
Format no set mld maxresponse
Mode • VLAN Mode
set mld mcrtexpiretime
Use this command to set the Multicast Router Present Expiration time. The time is set for the system, on a particular interface or VLAN. This is the amount of time in seconds that a switch waits for a query to be received on an interface before the interface is removed from the list of interfaces with multicast routers attached. The range is 0 to 3600 seconds. A value of 0 indicates an infinite timeout, i.e. no expiration.
Default 0
Format set mld mcrtexpiretime <0-3600>
Mode · Global Config
- Interface Config
Default 0
Format set mld mcrtexpiretime
Mode · VLAN Config
no set mld mcrtexpiretime
Use this command to set the Multicast Router Present Expiration time to 0. The time is set for the system, on a particular interface or a VLAN.
Format no set mld mcrtexpiretime
Mode • Global Config
- Interface Config
Format no set mld mcrtexpiretime
Mode • VLAN Mode
set mld mrouter
Use this command to configure the VLAN ID for the VLAN that has the multicast router attached mode enabled.
Format set mld mrouter
Mode Interface Config
no set mld mrouter
Use this command to disable multicast router attached mode for a VLAN with a particular VLAN ID.
Format no set mld mrouter
Mode Interface Config
set mld mrouter interface
Use this command to configure the interface as a multicast router-attached interface. When configured as a multicast router interface, the interface is treated as a multicast router-attached interface in all VLANs.
Default disabled
Format set mld mrouter interface
Mode Interface Config
no set mld mrouter interface
Use this command to disable the status of the interface as a statically configured multicast router-attached interface.
Format no set mld mrouter interface
Mode Interface Config
show mldsnooping
Use this command to display MLD Snooping information. Configured information is displayed whether or not MLD Snooping is enabled.
Format show mldsnooping [
Mode Privileged EXEC
When the optional arguments
| Term Definition | |
| Admin Mode Indicates whether or not MLD Snooping is active on the switch. | |
| Interfaces Enabled for MLD Snooping | Interfaces on which MLD Snooping is enabled. |
| MLD Control Frame Count | Displays the number of MLD Control frames that are processed by the CPU. |
| VLANs Enabled for MLD Snooping | VLANs on which MLD Snooping is enabled. |
When you specify the
| Term Definition | |
| MLD Snooping Admin Mode | Indicates whether MLD Snooping is active on the interface. |
| Fast Leave Mode | Indicates whether MLD Snooping Fast Leave is active on the VLAN. |
| Group Membership Interval | Shows the amount of time in seconds that a switch will wait for a report from a particular group on a particular interface, which is participating in the VLAN, before deleting the interface from the entry. This value may be configured. |
| Max Response Time | Displays the amount of time the switch waits after it sends a query on an interface, participating in the VLAN, because it did not receive a report for a particular group on that interface. This value may be configured. |
| Multicast Router Expiry Time | Displays the amount of time to wait before removing an interface that is participating in the VLAN from the list of interfaces with multicast routers attached. The interface is removed if a query is not received. This value may be configured. |
When you specify a value for
| Term Definition | |
| VLAN Admin Mode | Indicates whether MLD Snooping is active on the VLAN. |
show mldsnooping mrouter
Use this command to display information about statically configured multicast router attached interfaces.
Format show mldsnooping mrouter
Mode Privileged EXEC
| Term Definition | |
| Interface Shows the interface on which multicast router information is being displayed. | |
| Multicast Router Attached | Indicates whether multicast router is statically enabled on the interface. |
| VLAN ID Displays | the list of VLANs of which the interface is a member. |
show mldsnooping mrouter vlan
Use this command to display information about statically configured multicast router-attached interfaces.
Format show mldsnooping mrouter vlan
Mode Privileged EXEC
| Term Definition | |
| Interface Shows the interface on which multicast router information is being displayed. | |
| VLAN ID Displays the list of VLANs of which the interface is a member. | |
show mac-address-table mldsnooping
Use this command to display the MLD Snooping entries in the Multicast Forwarding Database (MFDB) table.
Format show mac-address-table mldsnooping
Mode Privileged EXEC
| Term Definition | |
| MAC Address | A multicast MAC address for which the switch has forwarding or filtering information. The format is two-digit hexadecimal numbers that are separated by colons, for example 33:33:45:67:89:AB. In an IVL system, the MAC address is displayed as a MAC address and a VLAN ID combination of 8 bytes. |
| Type The type of | entry, which is either static (added by the user) or dynamic (added to the table as a result of a learning process or protocol.) |
| Description The text description of this multicast table entry. | |
| Interfaces | The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:). |
MLD Snooping Querier Commands
In an IPv6 environment, MLD Snooping requires that one central switch or router periodically query all end-devices on the network to announce their multicast memberships. This central device is the MLD Querier. The MLD query responses, known as MLD reports, keep the switch updated with the current multicast group membership on a port-by-port basis. If the switch does not receive updated membership information in a timely fashion, it will stop forwarding multicasts to the port where the end device is located.
This section describes the commands you use to configure and display information on MLD Snooping queries on the network and, separately, on VLANs.
set mld querier
Use this command to enable MLD Snooping Querier on the system (Global Config Mode) or on a VLAN. Using this command, you can specify the IP address that the snooping querier switch should use as a source address while generating periodic queries.
If a VLAN has MLD Snooping Querier enabled and MLD Snooping is operationally disabled on it, MLD Snooping Querier functionality is disabled on that VLAN. MLD Snooping functionality is re-enabled if MLD Snooping is operational on the VLAN.
The MLD Snooping Querier sends periodic general queries on the VLAN to solicit membership reports.
Default disabled
Format set mld querier
Mode · Global Config
Default disabled
Format set mld querier [
Mode • VLAN Mode
no set mld querier
Use this command to disable MLD Snooping Querier on the system. Use the optional parameter address to reset the querier address.
Format no set mld querier address
Mode • Global Config
Format no set mld querier
Mode · VLAN Mode
set mld querier query\_interval
Use this command to set the MLD Querier Query Interval time. It is the amount of time in seconds that the switch waits before sending another general query.
Default disabled
Format set mld querier query_interval <1-18000>
Mode Global Config
no set mld querier query_interval
Use this command to set the MLD Querier Query Interval time to its default value.
Format no set mld querier query_interval
Mode Global Config
set mld querier timer expiry
Use this command to set the MLD Querier timer expiration period. It is the time period that the switch remains in Non-Querier mode once it has discovered that there is a Multicast Querier in the network.
Default 60 seconds
Format set mld querier timer expiry <60-300>
Mode Global Config
no set mld querier timer expiry
Use this command to set the MLD Querier timer expiration period to its default value.
Format no set mld querier timer expiry
Mode Global Config
set mld querier election participate
Use this command to enable the Snooping Querier to participate in the Querier Election process when it discovers the presence of another Querier in the VLAN. When this mode is enabled, if the Snooping Querier finds that the other Querier's source address is better (less) than the Snooping Querier's address, it stops sending periodic queries. If the Snooping Querier wins the election, then it will continue sending periodic queries.
Default disabled
Format set mld querier election participate
Mode VLAN Config
no set mld querier election participate
Use this command to set the snooping querier not to participate in querier election but go into a non-querier mode as soon as it discovers the presence of another querier in the same VLAN.
Format no set mld querier election participate
Mode VLAN Config
show mldsnooping querier
Use this command to display MLD Snooping Querier information. Configured information is displayed whether or not MLD Snooping Querier is enabled.
Format show mldsnooping querier [{detail | vlan
Mode Privileged EXEC
When the optional arguments
| Field Description | |
| Admin Mode Indicates whether or not MLD Snooping Querier is active on the switch. | |
| Admin Version | Indicates the version of MLD that will be used while sending out the queries. This is defaulted to MLD v1 and it cannot be changed. |
| Querier Address | Shows the IP address which will be used in the IPv6 header while sending out MLD queries. It can be configured using the appropriate command. |
| Query Interval | Shows the amount of time in seconds that a Snooping Querier waits before sending out the periodic general query. |
| Querier Timeout | Displays the amount of time to wait in the Non-Querier operational state before moving to a Querier state. |
When you specify a value for
| Field Description | |
| VLAN Admin Mode | Indicates whether MLD Snooping Querier is active on the VLAN. |
| VLAN Operational State | Indicates whether MLD Snooping Querier is in “Querier” or “Non-Querier” state. When the switch is in Querier state, it will send out periodic general queries. When in Non-Querier state, it will wait for moving to Querier state and does not send out any queries. |
| VLANOperationalMax ResponseTime | Indicates the time to wait before removing a Leave from a host upon receiving a Leave request. This value is calculated dynamically from the Queries received from the network. If the Snooping Switch is in Querier state, then it is equal to the configured value. |
| Querier ElectionParticipate | Indicates whether the MLD Snooping Querier participates in querier election if it discovers the presence of a querier in the VLAN. |
| Querier VLANAddress | The IP address will be used in the IPv6 header while sending out MLD queries on this VLAN. It can be configured using the appropriate command. |
| OperationalVersion | This version of IPv6 will be used while sending out MLD queriers on this VLAN. |
| Last QuerierAddress | Indicates the IP address of the most recent Querier from which a Query was received. |
| Last QuerierVersion | Indicates the MLD version of the most recent Querier from which a Query was received on this VLAN. |
When the optional argument detail is used, the command shows the global information and the information for all Querier-enabled VLANs.
Port Security Commands
This section describes the command you use to configure Port Security on the switch. Port security, which is also known as port MAC locking, allows you to secure the network by locking allowable MAC addresses on a port. Packets with a matching source MAC address are forwarded normally, and all other packets are discarded.
| Note: To enable the SNMP trap specific to port security, see “snmp-server enable traps violation” on page 10-44. |
port-security
This command enables port locking at the system level (Global Config) or port level (Interface Config).
Default disabled
Format port-security
Mode • Global Config
- Interface Config
no port-security
This command disables port locking for one (Interface Config) or all (Global Config) ports.
Format no port-security
Mode · Global Config
- Interface Config
port-security max-dynamic
This command sets the maximum number of dynamically locked MAC addresses allowed on a specific port.
Default 600
Format port-security max-dynamic
Mode Interface Config
no port-security max-dynamic
This command resets the maximum number of dynamically locked MAC addresses allowed on a specific port to its default value.
Format no port-security max-dynamic
Mode Interface Config
port-security max-static
This command sets the maximum number of statically locked MAC addresses allowed on a port.
Default 20
Format port-security max-static
Mode Interface Config
no port-security max-static
This command sets maximum number of statically locked MAC addresses to the default value.
Format no port-security max-static
Mode Interface Config
port-security mac-address
This command adds a MAC address to the list of statically locked MAC addresses. The
Format port-security mac-address
Mode Interface Config
no port-security mac-address
This command removes a MAC address from the list of statically locked MAC addresses.
Format no port-security mac-address
Mode Interface Config
port-security mac-address move
This command converts dynamically locked MAC addresses to statically locked addresses.
Format port-security mac-address move
Mode Interface Config
show port-security
This command displays the port-security settings. If you do not use a parameter, the command displays the settings for the entire system. Use the optional parameters to display the settings on a specific interface or on all interfaces.
Format show port-security [{
Mode Privileged EXEC
| Term Definition | |
| Admin Mode | Port Locking mode for the entire system. This field displays if you do not supply any parameters. |
For each interface, or for the interface you specify, the following information appears:
| Term Definition | |
| Admin Mode Port | Locking mode for the Interface. |
| Dynamic Limit Maximum | dynamically allocated MAC Addresses. |
| Static Limit Maximum | statically allocated MAC Addresses. |
| Violation Trap Mode | Whether violation traps are enabled. |
show port-security dynamic
This command displays the dynamically locked MAC addresses for the port.
Format show port-security dynamic
Mode Privileged EXEC
| Term Definition | |
| MAC Address MAC | Address of dynamically locked MAC. |
show port-security static
This command displays the statically locked MAC addresses for port.
Format show port-security static
Mode Privileged EXEC
| Term Definition | |
| MAC Address MAC Address of statically locked MAC. | |
show port-security violation
This command displays the source MAC address of the last packet discarded on a locked port.
Format show port-security violation
Mode Privileged EXEC
| Term Definition | |
| MAC Address MAC Address of discarded packet on locked port. | |
LLDP (802.1AB) Commands
This section describes the command you use to configure Link Layer Discovery Protocol (LLDP), which is defined in the IEEE 802.1AB specification. LLDP allows stations on an 802 LAN to advertise major capabilities and physical descriptions. The advertisements allow a network management system (NMS) to access and display this information.
Ildp transmit
Use this command to enable the LLDP advertise capability.
Default enabled
Format lldp transmit
Mode Interface Config
no lldp transmit
Use this command to return the local data transmission capability to the default.
Format no lldp transmit
Mode Interface Config
Ildp receive
Use this command to enable the LLDP receive capability.
Default enabled
Format lldp receive
Mode Interface Config
no lldp receive
Use this command to return the reception of LLDPDUs to the default value.
Format no lldp receive
Mode Interface Config
Ildp timers
Use this command to set the timing parameters for local data transmission on ports enabled for LLDP. The
multiplier on the transmit interval that sets the TTL in local data LLDPDUs. The multiplier range is 2-10. The
Default · interval—30 seconds
- hold—4
- reinit—2 seconds
Format lldp timers [interval
Mode Global Config
no lldp timers
Use this command to return any or all timing parameters for local data transmission on ports enabled for LLDP to the default values.
Format no lldp timers [interval] [hold] [reinit]
Mode Global Config
Ildp transmit-tlv
Use this command to specify which optional type length values (TLVs) in the 802.1AB basic management set are transmitted in the LLDPDUs. Use sys-name to transmit the system name TLV. To configure the system name, see “snmp-server” on page 10-41. Use sys-descto transmit the system description TLV. Use sys-cap to transmit the system capabilities TLV. Use port-desc to transmit the port description TLV. To configure the port description, see “description” on page 5.
Default all optional TLVs are included
Format lldp transmit-tlv [sys-desc] [sys-name] [sys-cap] [port-desc]
Mode Interface Config
no lldp transmit-tlv
Use this command to remove an optional TLV from the LLDPDUs. Use the command without parameters to remove all optional TLVs from the LLDPDU.
Format no lldp transmit-tlv [sys-desc] [sys-name] [sys-cap] [port-desc] Mode Interface Config
Ildp transmit-mgmt
Use this command to include transmission of the local system management address information in the LLDPDUs.
Format lldp transmit-mgmt
Mode Interface Config
no lldp transmit-mgmt
Use this command to include transmission of the local system management address information in the LLDPDUs. Use this command to cancel inclusion of the management information in LLDPDUs.
Format no lldp transmit-mgmt
Mode Interface Config
Ildp notification
Use this command to enable remote data change notifications.
Default disabled
Format lldp notification
Mode Interface Config
no lldp notification
Use this command to disable notifications.
Default disabled
Format no lldp notification
Mode Interface Config
Ildp notification-interval
Use this command to configure how frequently the system sends remote data change notifications. The
Default 5
Format lldp notification-interval
Mode Global Config
no lldp notification-interval
Use this command to return the notification interval to the default value.
Format no lldp notification-interval
Mode Global Config
clear lldp statistics
Use this command to reset all LLDP statistics, including MED-related information.
Format clear lldp statistics
Mode Privileged Exec
clear lldp remote-data
Use this command to delete all information from the LLDP remote data table, including MED-related information.
Format clear lldp remote-data
Mode Global Config
show lldp
Use this command to display a summary of the current LLDP configuration.
Format show lldp
Mode Privileged Exec
| Term Definition | |
| Transmit Interval | How frequently the system transmits local data LLDPDUs, in seconds. |
| Transmit Hold Multiplier | The multiplier on the transmit interval that sets the TTL in local data LLDPDUs. |
| Re-initialization Delay | The delay before re-initialization, in seconds. |
| Notification Interval | How frequently the system sends remote data change notifications, in seconds. |
show lldp interface
Use this command to display a summary of the current LLDP configuration for a specific interface or for all interfaces.
Format show lldp interface {
Mode Privileged Exec
| Term Definition | |
| Interface The interface in a unit/slot/port format. | |
| Link Shows whether the link is up or down. | |
| Transmit Shows | whether the interface transmits LLDPDUs. |
| Receive Shows | whether the interface receives LLDPDUs. |
| Notify Shows | whether the interface sends remote data change notifications. |
| TLVs Shows | whether the interface sends optional TLVs in the LLDPDUs. The TLV codes can be 0 (Port Description), 1 (System Name), 2 (System Description), or 3 (System Capability). |
| Mgmt Shows | whether the interface transmits system management address information in the LLDPDUs. |
show lldp statistics
Use this command to display the current LLDP traffic and remote table statistics for a specific interface or for all interfaces.
Format show lldp statistics {
Mode Privileged Exec
| Term Definition | |
| Last Update | The amount of time since the last update to the remote table in days, hours, minutes, and seconds. |
| Total Inserts Total | number of inserts to the remote data table. |
| Total Deletes Total | number of deletes from the remote data table. |
| Total Drops Total | number of times the complete remote data received was not inserted due to insufficient resources. |
| Total Ageouts | Total number of times a complete remote data entry was deleted because the Time to Live interval expired. |
The table contains the following column headings:
| Term Definition | |
| Interface The interface in unit/slot/port format. | |
| Transmit Total Total number of LLDP packets transmitted on the port. | |
| Receive Total Total number of LLDP packets received on the port. | |
| Discards Total number of LLDP frames discarded on the port for any reason. | |
| Errors The number of invalid LLDP frames received on the port. | |
| Ageouts | Total number of times a complete remote data entry was deleted for the port because the Time to Live interval expired. |
| TLV Discards The number of TLVs discarded. | |
| TLV Unknowns | Total number of LLDP TLVs received on the port where the type value is in the reserved range, and not recognized. |
| TLV MED Total number of LLDP MED TLVs received on the local ports. | |
| TVL802.1 Total number of 802.1 LLDP TLVs received on the local ports. | |
| TVL802.3 Total number of 802.3 LLDP TLVs received on the local ports. | |
show lldp remote-device
Use this command to display summary information about remote devices that transmit current LLDP data to the system. You can show information about LLDP remote data received on all ports or on a specific port.
Format show lldp remote-device {
Mode Privileged EXEC
| Term Definition | |
| Local Interface The interface that received the LLDPDU from the remote device. | |
| RemID An internal identifier to the switch to mark each remote device to the system. | |
| Chassis ID | The ID that is sent by a remote device as part of the LLDP message, it is usually a MAC address of the device. |
| Port ID The port number that transmitted the LLDPDU. | |
| System Name The system name of the remote device. | |
Example: The following shows example CLI display output for the command.
(switch) #show lldp remote-device all
LLDP Remote Device Summary
| Local | ||||
| Interface | RemID | Chassis ID | Port ID | System Name |
| 0/1 | ||||
| 0/2 | ||||
| 0/3 | ||||
| 0/4 | ||||
| 0/5 | ||||
| 0/6 | ||||
| 0/7 | 2 | 00:FC:E3:90:01:0F | 00:FC:E3:90:01:11 | |
| 0/7 | 3 | 00:FC:E3:90:01:0F | 00:FC:E3:90:01:12 | |
| 0/7 | 4 | 00:FC:E3:90:01:0F | 00:FC:E3:90:01:13 | |
| 0/7 | 5 | 00:FC:E3:90:01:0F | 00:FC:E3:90:01:14 | |
| 0/7 | 1 | 00:FC:E3:90:01:0F | 00:FC:E3:90:03:11 | |
| 0/7 | 6 | 00:FC:E3:90:01:0F | 00:FC:E3:90:04:11 | |
| 0/8 | ||||
| 0/9 | ||||
| 0/10 | ||||
| 0/11 | ||||
| 0/12 | ||||
| --More-- or (q)uit | ||||
show lldp remote-device detail
Use this command to display detailed information about remote devices that transmit current LLDP data to an interface on the system.
Format show lldp remote-device detail
Mode Privileged EXEC
| Term Definition | |
| Local Interface | The interface that received the LLDPDU from the remote device. |
| Remote Identifier | An internal identifier to the switch to mark each remote device to the system. |
| Chassis ID Subtype | The type of identification used in the Chassis ID field. |
| Chassis ID | The chassis of the remote device. |
| Port ID Subtype | The type of port on the remote device. |
| Port ID The port number that transmitted the LLDPDU. | |
| System Name The system name of the remote device. | |
| System Description | Describes the remote system by identifying the system name and versions of hardware, operating system, and networking software supported in the device. |
| Port Description | Describes the port in an alpha-numeric format. The port description is configurable. |
| System Capabilities Supported | Indicates the primary function(s) of the device. |
| System Capabilities Enabled | Shows which of the supported system capabilities are enabled. |
| Management Address | For each interface on the remote device with an LLDP agent, lists the type of address the remote LLDP agent uses and specifies the address used to obtain information related to the device. |
| Time To Live | The amount of time (in seconds) the remote device's information received in the LLDPDU should be treated as valid information. |
Example: The following shows example CLI display output for the command.
(Switch) #show lldp remote-device detail 0/7
LLDP Remote Device Detail
Local Interface: 0/7
Remote Identifier: 2
Chassis ID Subtype: MAC Address
Chassis ID: 00:FC:E3:90:01:0F
Port ID Subtype: MAC Address
Port ID: 00:FC:E3:90:01:11
System Name:
System Description:
Port Description:
System Capabilities Supported:
System Capabilities Enabled:
Time to Live: 24 seconds
show lldp local-device
Use this command to display summary information about the advertised LLDP local data. This command can display summary information or detail for each interface.
Format show lldp local-device {
Mode Privileged EXEC
| Term Definition | |
| Interface The interface in a unit/slot/port format. | |
| Port ID The port ID associated with this interface. | |
| Port Description | The port description associated with the interface. |
show lldp local-device detail
Use this command to display detailed information about the LLDP data a specific interface transmits.
Format show lldp local-device detail
Mode Privileged EXEC
| Term Definition | |
| Interface The interface that sends the LLDPDU. | |
| Chassis ID Subtype | The type of identification used in the Chassis ID field. |
| Chassis ID The chassis of the local device. | |
| Port ID Subtype | The type of port on the local device. |
| Port ID The port number that transmitted the LLDPDU. | |
| System Name The system name of the local device. | |
| System Description | Describes the local system by identifying the system name and versions of hardware, operating system, and networking software supported in the device. |
| Port Description | Describes the port in an alpha-numeric format. |
| System Capabilities Supported | Indicates the primary function(s) of the device. |
| System Capabilities Enabled | Shows which of the supported system capabilities are enabled. |
| Management Address | The type of address and the specific address the local LLDP agent uses to send and receive information. |
LLDP-MED Commands
Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) (ANSI-TIA-1057) provides an extension to the LLDP standard. Specifically, LLDP-MED provides extensions for network configuration and policy, device location, Power over Ethernet (PoE) management and inventory management.
Ildp med
Use this command to enable MED. By enabling MED, you will be effectively enabling the transmit and receive function of LLDP.
Default enabled
Format lldp med
Mode Interface Config
no lldp med
Use this command to disable MED.
Format no lldp med
Mode Interface Config
Ildp med confignotification
Use this command to configure all the ports to send the topology change notification.
Default enabled
Format lldp med confignotification
Mode Interface Config
no ldp med confignotification
Use this command to disable notifications.
Format no lldp med confignotification
Mode Interface Config
Ildp med transmit-tlv
Use this command to specify which optional Type Length Values (TLVs) in the LLDP MED set will be transmitted in the Link Layer Discovery Protocol Data Units (LLDPDUs).
Default By default, the capabilities and network policy TLVs are included.
Format lldp med transmit-tlv [capabilities] [ex-pd] [ex-pse] [inventory] [location] [network-policy]
Mode Interface Config
| Term Definition | |
| capabilities Transmit the LLDP capabilities TLV. | |
| ex-pd Transmit the LLDP extended PD TLV. | |
| ex-pse Transmit the LLDP extended PSE TLV. | |
| inventory Transmit the LLDP inventory TLV. | |
| location Transmit the LLDP location TLV. | |
| network-policy Transmit the LLDP network policy TLV. | |
no lldp med transmit-tlv
Use this command to remove a TLV.
Format no lldp med transmit-tlv [capabilities] [network-policy] [ex-pse] [ex-pd] [location] [inventory]
Mode Interface Config
Ildp med all
Use this command to configure LLDP-MED on all the ports
Format lldp med all
Mode Global Config
no lldp med all
Use this command to remove LLDP-MD on all ports.
Format no lldp med all
Mode Global Config
Ildp med confignotification all
Use this command to configure all the ports to send the topology change notification.
Format lldp med confignotification all
Mode Global Config
no lldp med confignotification all
Use this command to disable all the ports to send the topology change notification.
Format no lldp med confignotification all
Mode Global Config
Ildp med faststartrepeatcount
Use this command to set the value of the fast start repeat count. [count] is the number of LLDP PDUs that will be transmitted when the product is enabled. The range is 1 to 10.
Default 3
Format lldp med faststartrepeatcount [count]
Mode Global Config
no lldp med faststartrepeatcount
Use this command to return to the factory default value.
Format no lldp med faststartrepeatcount
Mode Global Config
Ildp med transmit-tlv all
Use this command to specify which optional Type Length Values (TLVs) in the LLDP MED set will be transmitted in the Link Layer Discovery Protocol Data Units (LLDPDUs).
Default By default, the capabilities and network policy TLVs are included.
Format lldp med transmit-tlv all [capabilities] [ex-pd] [ex-pse] [inventory] [location] [network-policy]
Mode Global Config
| Term Definition | |
| capabilities Transmit the LLDP capabilities TLV. | |
| ex-pd Transmit the LLDP extended PD TLV. | |
| ex-pse Transmit the LLDP extended PSE TLV. | |
| inventory Transmit the LLDP inventory TLV. | |
| location Transmit the LLDP location TLV. | |
| network-policy Transmit the LLDP network policy TLV. | |
no lldp med transmit-tlv
Use this command to remove a TLV.
Format no lldp med transmit-tlv all [capabilities] [network-policy] [ex-pse] [ex-pd] [location] [inventory]
Mode Global Config
show lldp med
Use this command to display a summary of the current LLDP MED configuration.
Format show lldp med
Mode Privileged Exec
| Term Definition | |
| Fast Start Repeat Count | The number of LLDP PDUs that will be transmitted when the protocol is enabled. |
| Device Class | The local device's MED Classification. There are four different kinds of devices, three of them represent the actual end points (classified as Class I Generic[IP Communication Controller etc.], Class II Media Conference Bridge etc.], Class III Communication [IP Telephone etc.]. Class IV Network Connectivity Device, which is typically a LAN Switch, Router, IEEE 802.11 Wireless Access Point, etc. |
Example: The following shows example CLI display output for the command.
(switch) #show lldp med
LLDP MED Global Configuration
Fast Start Repeat Count: 3
Device Class: Network Connectivity
(switch) #
show lldp med interface
Use this command to display a summary of the current LLDP MED configuration for a specific interface.
Format show lldp med interface {
Mode Privileged Exec
| Term Definition | |
| Interface The interface | in a unit/slot/port format. |
| Link Shows whether the link is up or down. | |
| ConfigMED Shows if the LLPD-MED mode is enabled or disabled on this interface | |
| OperMED Shows if the LLPD-MED TLVs are transmitted or not on this interface. | |
| ConfigNotify Shows if the LLPD-MED topology notification mode of this interface. | |
| TLVsTx Shows whether the interface sends optional TLVs in the LLDPDUs. The TLV codes can be 0 (Capabilities), 1 (Network Policy), 2 (Location), 3 (Extended PSE), 4 (Extended Pd), or 5 (Inventory). | |
Example: The following shows example CLI display output for the command.
(Switch) #show lldp med interface all
| Interface | Link | configMED | operMED | ConfigNotify | TLVsTx |
| 1/0/1 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/2 | Up | Disabled | Disabled | Disabled | 0,1 |
| 1/0/3 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/4 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/5 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/6 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/7 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/8 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/9 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/10 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/11 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/12 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/13 | Down | Disabled | Disabled | Disabled | 0,1 |
| 1/0/14 | Down | Disabled | Disabled | Disabled | 0,1 |
TLV Codes: 0- Capabilities, 1- Network Policy
2- Location, 3- Extended PSE
4- Extended Pd, 5- Inventory
--More-- or (q)uit
(Switch) #show lldp med interface 1/0/2
Interface Link configMED operMED ConfigNotify TLVsTx
1/0/2 Up Disabled Disabled Disabled 0,1
TLV Codes: 0- Capabilities, 1- Network Policy
2- Location, 3- Extended PSE
4- Extended Pd, 5- Inventory
(Routing) #
show lldp med local-device detail
This command displays detailed information about the LLDP data a specific interface transmits.
Format show lldp med local-device detail
Mode Privileged EXEC
| Term Definition | |
| Media Application Type | Shows the application type. Types are unknown, voice, voicesignaling, guestvoice, guestvoicesignaling, sfotphonevoice, videoconferencing, streamingvideo, videosignaling. |
| Vlan ID Shows the VLAN id associated with a particular policy type | |
| Priority Shows the priority associated with a particular policy type. | |
| DSCP Shows the DSCP associated with a particular policy type. | |
| Unknown | Indicates if the policy type is unknown. In this case, the VLAN ID, Priority and DSCP are ignored. |
| Tagged Indicates if the policy type is using tagged or untagged VLAN. | |
| Hardware Rev Shows the local hardware version. | |
| Firmware Rev Shows the local firmware version. | |
| Software Rev Shows the local software version. | |
| Serial Num Shows the local serial number. | |
| Mfg Name Shows the manufacture name. | |
| Model Name Shows the model name. | |
Example: The following shows example CLI display output for the command.
(Switch) #show lldp med local-device detail 1/0/8
LLDP MED Local Device Detail
Interface: 1/0/8
Network Policies
Media Policy Application Type : voice
Vlan ID: 10
Priority: 5
DSCP: 1
Unknown: False
Tagged: True
Media Policy Application Type : streamingvideo
Vlan ID: 20
Priority: 1
DSCP: 2
Unknown: False
Tagged: True
Inventory
Hardware Rev: xxx xxx xxx
Firmware Rev: xxx xxx xxx
Software Rev: xxx xxx xxx
Serial Num: xxx xxx xxx
Mfg Name: xxx xxx xxx
Model Name: xxx xxx xxx
Asset ID: xxx xxx xxx
Location
Subtype: elin
Info: xxx xxx xxx
Extended POE
Device Type: pseDevice
Extended POE PSE
Available: 0.3 Watts
Source: primary
Priority: critical
Extended POE PD
Required: 0.2 Watts
Source: local
Priority: low
show lldp med remote-device
This command displays summary information about remote devices that transmit current LLDP MED data to the system. You can show information about LLDP remote data received on all ports or on a specific port.
Format show lldp med remote-device {
Mode Privileged EXEC
| Term Definition | |
| Interface The interface in a unit/slot/port format. | |
| Device Class | The Remote device’s MED Classification. There are four different kinds of devices, three of them represent the actual end points (classified as Class I Generic [IP Communication Controller etc.], Class II Media [Conference Bridge etc.], Class III Communication [IP Telephone etc]). The fourth device is Network Connectivity Device, which is typically a LAN Switch/Router, IEEE 802.1 Bridge, IEEE 802.11 Wireless Access Point etc. |
Example: The following shows example CLI display output for the command.
(Switch) #show lldp med remote-device all
LLDP MED Remote Device Summary
Local
Interface Remote ID Device Class
1/0/8 1 Class I
1/0/9 2 Not Defined
1/0/10 3 Class II
1/0/11 4 Class III
1/0/12 5 Network Con
show lldp med remote-device detail
Use this command to display detailed information about remote devices that transmit current LLDP MED data to an interface on the system.
Format show lldp med remote-device detail
Mode Privileged EXEC
| Term Definition | |
| Supported Capabilities | Shows the supported capabilities that were received in MED TLV on this port. |
| Enabled capabilities | Shows the enabled capabilities that were enabled in MED TLV on this port. |
| Device Class Shows the device class as advertised by the device remotely connected to the port. | |
| Network Policy Information | Shows if network policy TLV is received in the LLDP frames on this port. |
| Media Application Type | Shows the application type. Types of applications are unknown, voice, voicesignaling, guestvoice, guestvoicesignaling, sfotphonevoice, videoconferencing, streamingvideo, videosignaling. |
| VLAN Id Shows the VLAN id associated with a particular policy type. | |
| Priority Shows the priority associated with a particular policy type. | |
| DSCP Shows the DSCP associated with a particular policy type. | |
| Unknown | Indicates if the policy type is unknown. In this case, the VLAN id, Priority and DSCP are ignored. |
| Tagged Indicates if the policy type is using tagged or untagged VLAN. | |
| Hardware Revision | Shows the hardware version of the remote device. |
| Firmware Revision | Shows the firmware version of the remote device. |
| Software Revision | Shows the software version of the remote device. |
| Serial Number Shows the serial number of the remote device. | |
| Manufacturer Name | Shows the manufacture name of the remote device. |
| Model Name Shows the model name of the remote device. | |
| Asset ID Shows the asset id of the remote device. | |
| Sub Type Shows | the type of location information. |
| Location Information | Shows the location information as a string for a given type of location id |
| Device Type Shows | the remote device's PoE device type connected to this port. |
| Available Shows | the remote port's PSE power value in tenths of a watt. |
| Source Shows the | remote port's PSE power source. |
| Priority Shows the | remote port's PSE priority. |
| Required Shows | the remote port's PD power requirement. |
| Source Shows the | remote port's PD power source. |
| Priority Shows the | remote port's PD power priority. |
Example: The following shows example CLI display output for the command.
(Switch) #show lldp med remote-device detail 1/0/8
LLDP MED Remote Device Detail
Local Interface: 1/0/8
Remote Identifier: 18
Capabilities
MED Capabilities Supported: capabilities, networkpolicy, location, extendedpse
MED Capabilities Enabled: capabilities, networkpolicy
Device Class: Endpoint Class I
Network Policies
Media Policy Application Type : voice
Vlan ID: 10
Priority: 5
DSCP: 1
Unknown: False
Tagged: True
Media Policy Application Type : streamingvideo
Vlan ID: 20
Priority: 1
DSCP: 2
Unknown: False
Tagged: True
Inventory
Hardware Rev: xxx xxx xxx
Firmware Rev: xxx xxx xxx
Software Rev: xxx xxx xxx
Serial Num: xxx xxx xxx
Mfg Name: xxx xxx xxx
Model Name: xxx xxx xxx
Asset ID: xxx xxx xxx
Location
Subtype: elin
Info: xxx xxx xxx
Extended POE
Device Type: pseDevice
Extended POE PSE
Available: 0.3 Watts
Source: primary
Priority: critical
Extended POE PD
Required: 0.2 Watts
Source: local
Priority: low
Denial of Service Commands
This section describes the commands you use to configure Denial of Service (DoS) Control. The software provides support for classifying and blocking specific types of Denial of Service attacks. You can configure your system to monitor and block these types of attacks:
- SIP=DIP: Source IP address = Destination IP address.
- First Fragment: TCP Header size smaller then configured value.
- TCP Fragment: IP Fragment Offset = 1.
- TCP Flag: TCP Flag SYN set and Source Port < 1024 or TCP Control Flags = 0 and TCP Sequence Number = 0 or TCP Flags FIN, URG, and PSH set and TCP Sequence Number = 0 or TCP Flags SYN and FIN set.
- L4 Port: Source TCP/UDP Port = Destination TCP/UDP Port.
- ICMP: Limiting the size of ICMP Ping packets.
dos-control all
This command enables Denial of Service protection checks globally.
Default disabled
Format dos-control all
Mode Global Config
no dos-control all
This command disables Denial of Service prevention checks globally.
Format no dos-control all
Mode Global Config
dos-control sipdip
This command enables Source IP address = Destination IP address (SIP=DIP) Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress with SIP=DIP, the packets will be dropped if the mode is enabled.
Default disabled
Format dos-control sipdip
Mode Global Config
no dos-control sipdip
This command disables Source IP address = Destination IP address (SIP=DIP) Denial of Service prevention.
Format no dos-control sipdip
Mode Global Config
dos-control firstfrag
This command enables Minimum TCP Header Size Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having a TCP Header Size smaller then the configured value, the packets will be dropped if the mode is enabled. The default is disabled. If you enable dos-control firstfrag, but do not provide a Minimum TCP Header Size, the system sets that value to 20.
Default disabled <20>
Format dos-control firstfrag [<0-255>]
Mode Global Config
no dos-control firstfrag
This command sets Minimum TCP Header Size Denial of Service protection to the default value of disabled.
Format no dos-control firstfrag
Mode Global Config
dos-control tcpfrag
This command enables TCP Fragment Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having IP Fragment Offset equal to one (1), the packets will be dropped if the mode is enabled.
Default disabled
Format dos-control tcpfrag
Mode Global Config
no dos-control tcpfrag
This command disabled TCP Fragment Denial of Service protection.
Format no dos-control tcpfrag
Mode Global Config
dos-control tcpflag
This command enables TCP Flag Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attacks. If packets ingress having TCP Flag SYN set and a source port less than 1024 or having TCP Control Flags set to 0 and TCP Sequence Number set to 0 or having TCP Flags FIN, URG, and PSH set and TCP Sequence Number set to 0 or having TCP Flags SYN and FIN both set, the packets will be dropped if the mode is enabled.
Default disabled
Format dos-control tcpflag
Mode Global Config
no dos-control tcpflag
This command sets disables TCP Flag Denial of Service protections.
Format no dos-control tcpflag
Mode Global Config
dos-control l4port
This command enables L4 Port Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having Source TCP/UDP Port Number equal to Destination TCP/UDP Port Number, the packets will be dropped if the mode is enabled.

Note: Some applications mirror source and destination L4 ports - RIP for example uses 520 for both. If you enable dos-control l4port, applications such as RIP may experience packet loss which would render the application inoperable.
Default disabled
Format dos-control 14port
Mode Global Config
no dos-control I4port
This command disables L4 Port Denial of Service protections.
Format no dos-control 14port
Mode Global Config
dos-control icmp
This command enables Maximum ICMP Packet Size Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If ICMP Echo Request (PING) packets ingress having a size greater than the configured value, the packets will be dropped if the mode is enabled.
Default disabled <512>
Format dos-control icmp [<0-1023>]
Mode Global Config
no dos-control icmp
This command disables Maximum ICMP Packet Size Denial of Service protections.
Format no dos-control icmp
Mode Global Config
dos-control smacdmac
This command enables Source MAC address = Destination MAC address (SMAC=DMAC) Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress with SMAC=DMAC, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control smacdmac
Mode Global Config
no dos-control smacdmac
This command disables Source MAC address = Destination MAC address (SMAC=DMAC) Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control smacdmac
Mode Global Config
dos-control tcpport
This command enables TCP L4 source = destination port number (Source TCP Port = Destination TCP Port) Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress with Source TCP Port = Destination TCP Port, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpport
Mode Global Config
no dos-control tcpport
This command disables TCP L4 source = destination port number (Source TCP Port = Destination TCP Port) Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control smacdmac
Mode Global Config
dos-control udpport
This command enables UDP L4 source = destination port number (Source UDP Port = Destination UDP Port) Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress with Source UDP Port = Destination UDP Port, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control udppport
Mode Global Config
no dos-control udpport
This command disables UDP L4 source = destination port number (Source UDP Port = Destination UDP Port) Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control udppport
Mode Global Config
dos-control tcpflagseq
This command enables TCP Flag and Sequence Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having TCP Flag SYN set and a source port less than 1024 or having TCP Control Flags set to 0 and TCP Sequence Number set to 0 or having TCP Flags FIN, URG, and PSH set and TCP Sequence Number set to 0 or having TCP Flags SYN and FIN both set, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpflagseq
Mode Global Config
no dos-control tcpflagseq
This command sets disables TCP Flag and Sequence Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control tcpflagseq
Mode Global Config
dos-control tcpoffset
This command enables TCP Offset Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having TCP Header Offset equal to one (1), the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpoffset
Mode Global Config
no dos-control tcpoffset
This command disabled TCP Offset Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control tcpoffset
Mode Global Config
dos-control tcpsyn
This command enables TCP SYN and L4 source = 0-1023 Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having TCP flag SYN set and an L4 source port from 0 to 1023, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpsyn
Mode Global Config
no dos-control tcpsyn
This command sets disables TCP SYN and L4 source = 0-1023 Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control tcpsyn
Mode Global Config
dos-control tcpsynfin
This command enables TCP SYN and FIN Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having TCP flags SYN and FIN set, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpsynfin
Mode Global Config
no dos-control tcpsynfin
This command sets disables TCP SYN & FIN Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control tcpsynfin
Mode Global Config
dos-control tcpfinurgpsh
This command enables TCP FIN and URG and PSH and SEQ=0 checking Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having TCP FIN, URG, and PSH all set and TCP Sequence Number set to 0, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control tcpfinurgpsh
Mode Global Config
no dos-control tcpfinurgpsh
This command sets disables TCP FIN and URG and PSH and SEQ=0 checking Denial of Service protections. This command is only available on FSM72xxRS switches.
disc-central language
Format no dos-control tcpfinurgpsh
Mode Global Config
dos-control icmpv4
This command enables Maximum ICMPv4 Packet Size Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If ICMPv4 Echo Request (PING) packets ingress having a size greater than the configured value, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled <512>
Format dos-control icmpv4 <0-16384>
Mode Global Config
no dos-control icmpv4
This command disables Maximum ICMP Packet Size Denial of Service protections. This command is only available on FSM72xxRS switches.
Format no dos-control icmpv4
Mode Global Config
dos-control icmpv6
This command enables Maximum ICMPv6 Packet Size Denial of Service protections. If the mode is enabled, Denial of Service prevention is active for this type of attack. If ICMPv6 Echo Request (PING) packets ingress having a size greater than the configured value, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled <512>
Format dos-control icmpv6 <0-16384>
Mode Global Config
no dos-control icmpv6
This command disables Maximum ICMP Packet Size Denial of Service protections. This command is only available on FSM72xxRS switches.
Format no dos-control icmpv6
Mode Global Config
dos-control icmpfrag
This command enables ICMP Fragment Denial of Service protection. If the mode is enabled, Denial of Service prevention is active for this type of attack. If packets ingress having fragmented ICMP packets, the packets will be dropped if the mode is enabled. This command is only available on FSM72xxRS switches.
Default disabled
Format dos-control icmpfrag
Mode Global Config
no dos-control icmpfrag
This command disabled ICMP Fragment Denial of Service protection. This command is only available on FSM72xxRS switches.
Format no dos-control icmpfrag
Mode Global Config
show dos-control
This command displays Denial of Service configuration information.
Format show dos-control
Mode Privileged EXEC

Note: Not all messages below are available in all 7000series managed switches.
| Term Definition | |
| First Fragment Mode | May be enabled or disabled. The factory default is disabled. |
| Min TCP Hdr Size <0-255> | The factory default is 20. |
| ICMP Mode May | be enabled or disabled. The factory default is disabled. |
| Max ICMPv4 Pkt Size | The range is 0-1023. The factory default is 512. |
| Max ICMPv6 Pkt Size | The range is 0-16384. The factory default is 512. |
| ICMP Fragment Mode | May be enabled or disabled. The factory default is disabled. |
| L4 Port Mode May | be enabled or disabled. The factory default is disabled. |
| TCP Port Mode May | be enabled or disabled. The factory default is disabled. |
| UDP Port Mode May | be enabled or disabled. The factory default is disabled. |
| SIPDIP Mode May | be enabled or disabled. The factory default is disabled. |
| SMACDMAC Mode | May be enabled or disabled. The factory default is disabled. |
| TCP Flag Mode May | be enabled or disabled. The factory default is disabled. |
| TCP FIN&URG&PSH Mode | May be enabled or disabled. The factory default is disabled. |
| TCP Flag &Sequence Mode | May be enabled or disabled. The factory default is disabled. |
| TCP SYN Mode | May be enabled or disabled. The factory default is disabled. |
| TCP SYN & FIN Mode | May be enabled or disabled. The factory default is disabled. |
| TCP Fragment Mode | May be enabled or disabled. The factory default is disabled. |
| TCP Offset Mode | May be enabled or disabled. The factory default is disabled. |
MAC Database Commands
This section describes the commands you use to configure and view information about the MAC databases.
bridge aging-time
This command configures the forwarding database address aging timeout in seconds. The
Default 300
Format bridge aging-time <10-1,000,000>
Mode Global Config
no bridge aging-time
This command sets the forwarding database address aging timeout to the default value.
Format no bridge aging-time
Mode Global Config
show forwardingdb agetime
This command displays the timeout for address aging.
Default all
Format show forwardingdb agetime
Mode Privileged EXEC
| Term Definition | |
| Address Aging Timeout | • This parameter displays the address aging timeout for the associated forwarding database. |
show mac-address-table multicast
This command displays the Multicast Forwarding Database (MFDB) information. If you enter the command with no parameter, the entire table is displayed. You can display the table entry for one MAC Address by specifying the MAC address as an optional parameter.
Format show mac-address-table multicast
Mode Privileged EXEC
| Term Definition | |
| MAC Address | A multicast MAC address for which the switch has forwarding and or filtering information. The format is two-digit hexadecimal numbers separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address will be displayed as a MAC address and VLAN ID combination of 8 bytes. |
| Type The type of | the entry. Static entries are those that are configured by the end user. Dynamic entries are added to the table as a result of a learning process or protocol. |
| Component | The component that is responsible for this entry in the Multicast Forwarding Database. Possible values are IGMP Snooping, GMRP, and Static Filtering. |
| Description The text description of this multicast table entry. | |
| Interfaces | The list of interfaces that are designated for forwarding (Fwd:) and filtering (Flt:). |
| Forwarding Interfaces | The resultant forwarding list is derived from combining all the component's forwarding interfaces and removing the interfaces that are listed as the static filtering interfaces. |
show mac-address-table stats
This command displays the Multicast Forwarding Database (MFDB) statistics.
Format show mac-address-table stats
Mode Privileged EXEC
| Term Definition | |
| Max MFDB Table Entries | The total number of entries that can possibly be in the Multicast Forwarding Database table. |
| Most MFDB Entries Since Last Reset | The largest number of entries that have been present in the Multicast Forwarding Database table. This value is also known as the MFDB high-water mark. |
| Current Entries | The current number of entries in the MFDB. |
ISDP Commands
This section describes the commands you use to configure the industry standard Discovery Protocol (ISDP).
isdp run
This command enables ISDP on the switch.
Default Enabled
Format isdp run
Mode Global Config
no isdp run
This command disables ISDP on the switch.
Format no isdp run
Mode Global Config
isdp holdtime
This command configures the hold time for ISDP packets that the switch transmits. The hold time specifies how long a receiving device should store information sent in the ISDP packet before discarding it. The range is given in seconds.
Default 180 seconds
Format isdp holdtime <10-255>
Mode Global Config
isdp timer
This command sets the period of time between sending new ISDP packets. The range is given in seconds.
Default 30 seconds
Format isdp timer <5-254>
Mode Global Config
isdp advertise-v2
This command enables the sending of ISDP version 2 packets from the device.
Default Enabled
Format isdp advertise-v2
Mode Global Config
no isdp advertise-v2
This command disables the sending of ISDP version 2 packets from the device.
Format no isdp advertise-v2
Mode Global Config
isdp enable
This command enables ISDP on the interface.
Default Enabled
Format isdp enable
Mode Interface Config
no isdp enable
This command disables ISDP on the interface.
Format no isdp enable
Mode Interface Config
clear isdp counters
This command clears ISDP counters.
Format clear isdp counters
Mode Privileged EXEC
clear isdp table
This command clears entries in the ISDP table.
Format clear isdp table
Mode Privileged EXEC
show isdp
This command displays global ISDP settings.
Format show isdp
Mode Privileged EXEC
| Term Definition | |
| Timer The frequency with which this device sends ISDP packets. This value is given in seconds. | |
| Hold Time | The length of time the receiving device should save information sent by this device. This value is given in seconds. |
| Version 2 Advertisements | The setting for sending ISDPv2 packets. If disabled, version 1 packets are transmitted. |
| Device ID | The Device ID advertised by this device. The format of this Device ID is characterized by the value of the Device ID Format object. |
| Device ID Format Capability | Indicates the Device ID format capability of the device.• serialNumber indicates that the device uses a serial number as the format for its Device ID.• macAddress indicates that the device uses a Layer 2 MAC address as the format for its Device ID.• other indicates that the device uses its platform-specific format as the format for its Device ID. |
| Device ID Format | Indicates the Device ID format of the device.• serialNumber indicates that the value is in the form of an ASCII string containing the device serial number.• macAddress indicates that the value is in the form of a Layer 2 MAC address.• other indicates that the value is in the form of a platform specific ASCII string containing info that identifies the device. For example, ASCII string contains serialNumber appended/prepended with system name. |
show isdp interface
This command displays ISDP settings for the specified interface.
Format show isdp interface {all |
Mode Privileged EXEC
| Term Definition | |
| Mode ISDP mode | enabled/disabled status for the interface(s). |
show isdp entry
This command displays ISDP entries. If the device id is specified, then only entries for that device are shown.
Format show isdp entry {all | deviceid}
Mode Privileged EXEC
| Term Definition | |
| Device ID The device ID associated with the neighbor which advertised the information. | |
| IP Addresses The IP address(es) associated with the neighbor. | |
| Platform The hardware platform advertised by the neighbor. | |
| Interface The interface (slot/port) on which the neighbor's advertisement was received. | |
| Port ID The port ID of the interface from which the neighbor sent the advertisement. | |
| Hold Time The hold time advertised by the neighbor. | |
| Version The software version that the neighbor is running. | |
| Advertisement Version | The version of the advertisement packet received from the neighbor. |
| Capability ISDP Functional Capabilities advertised by the neighbor. | |
show isdp neighbors
This command displays the list of neighboring devices.
Format show isdp neighbors [ {
Mode Privileged EXEC
| Term Definition | |
| Device ID The device ID associated with the neighbor which advertised the information. | |
| IP Addresses The IP addresses associated with the neighbor. | |
| Capability ISDP functional capabilities advertised by the neighbor. | |
| Platform The hardware platform advertised by the neighbor. | |
| Interface | The interface (unit/slot/port) on which the neighbor's advertisement was received. |
| Term | Definition |
| Port ID The port ID of the interface from which the neighbor sent the advertisement. | |
| Hold Time The hold time advertised by the neighbor. | |
| Advertisement Version | The version of the advertisement packet received from the neighbor. |
| Entry Last Changed Time | Displays when the entry was last modified. |
| Version The software version that the neighbor is running. | |
Example: The following shows example CLI display output for the command.
(Switch) #show isdp neighbors detail
Device ID 0001f45f1bc0
Address(es):
IP Address: 10.27.7.57
Capability Router Trans Bridge Switch IGMP
Platform SecureStack C2
Interface 0/48
Port ID ge.3.14
Holdtime 131
Advertisement Version 2
Entry last changed time 0 days 00:01:59
Version : 05.00.56
show isdp traffic
This command displays ISDP statistics.
Format show isdp traffic
Mode Privileged EXEC
| Term Definition | |
| ISDP Packets Received Total | number of ISDP packets received |
| ISDP Packets Transmitted | Total number of ISDP packets transmitted |
| ISDPv1 Packets Received | Total number of ISDPv1 packets received |
| ISDPv1 Packets Transmitted | Total number of ISDPv1 packets transmitted |
| ISDPv2 Packets Received | Total number of ISDPv2 packets received |
| ISDPv2 Packets Transmitted | Total number of ISDPv2 packets transmitted |
| ISDP Bad Header Number of | packets received with a bad header |
| ISDP Checksum Error Number | of packets received with a checksum error |
| ISDP Transmission Failure Number | Number of packets which failed to transmit |
| ISDP Invalid Format Number | of invalid packets received |
| ISDP Table Full Number of times | a neighbor entry was not added to the table due to a full database |
| ISDP IP Address Table Full | Displays the number of times a neighbor entry was added to the table without an IP address. |
debug isdp packet
This command enables tracing of ISDP packets processed by the switch. ISDP must be enabled on both the device and the interface in order to monitor packets for a particular interface.
Format debug isdp packet [{receive | transmit}]
Mode Privileged EXEC
no debug isdp packet
This command disables tracing of ISDP packets on the receive or the transmit sides or on both sides.
Format no debug isdp packet [{receive | transmit}]
Mode Privileged EXEC
Chapter 4
Routing Commands
This chapter describes the routing commands available in the 7000 series CLI.
The Routing Commands chapter contains the following sections:
- “Address Resolution Protocol (ARP) Commands” on page 4-1
- "IP Routing Commands" on page 4-8
- “Router Discovery Protocol Commands” on page 4-20
- “Virtual LAN Routing Commands” on page 4-24
- “Virtual Router Redundancy Protocol Commands” on page 4-25
- “DHCP and BOOTP Relay Commands” on page 4-34
- "IP Helper Commands" on page 4-37
- “Open Shortest Path First (OSPF) Commands” on page 4-39
- “Routing Information Protocol (RIP) Commands” on page 4-82
- “ICMP Throttling Commands” on page 4-91

Warning: The commands in this chapter are in one of three functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Clear commands clear some or all of the settings to factory defaults.
Address Resolution Protocol (ARP) Commands
This section describes the commands you use to configure ARP and to view ARP information on the switch. ARP associates IP addresses with MAC addresses and stores the information as ARP entries in the ARP cache.
arp
This command creates an ARP entry. The value for
The format of the MAC address is 6 two-digit hexadecimal numbers that are separated by colons, for example 00:06:29:32:81:40.
Format arp
Mode Global Config
no arp
This command deletes an ARP entry. The value for
Format no arp
Mode Global Config
ip proxy-arp
This command enables proxy ARP on a router interface. Without proxy ARP, a device only responds to an ARP request if the target IP address is an address configured on the interface where the ARP request arrived. With proxy ARP, the device may also respond if the target IP address is reachable. The device only responds if all next hops in its route to the destination are through interfaces other than the interface that received the ARP request.
Default enabled
Format ip proxy-arp
Mode Interface Config
no ip proxy-arp
This command disables proxy ARP on a router interface.
Format no ip proxy-arp
Mode Interface Config
arp cachesize
This command configures the ARP cache size. The ARP cache size value is a platform specific integer value. The default size also varies depending on the platform.
Format arp cachesize
Mode Global Config
no arp cachesize
This command configures the default ARP cache size.
Format no arp cachesize
Mode Global Config
arp dynamiccrenew
This command enables the ARP component to automatically renew dynamic ARP entries when they age out.
Default enabled
Format arp dynamiccrenew
Mode Privileged EXEC
no arp dynamiccrenew
This command prevents dynamic ARP entries from renewing when they age out.
Format no arp dynamiccrenew
Mode Privileged EXEC
arp purge
This command causes the specified IP address to be removed from the ARP cache. Only entries of type dynamic or gateway are affected by this command.
Format arp purge
Mode Privileged EXEC
arp resptime
This command configures the ARP request response timeout.
The value for
Default 1
Format arp resptime <1-10>
Mode Global Config
no arp resptime
This command configures the default ARP request response timeout.
Format no arp resptime
Mode Global Config
arp retries
This command configures the ARP count of maximum request for retries.
The value for
Default 4
Format arp retries <0-10>
Mode Global Config
no arp retries
This command configures the default ARP count of maximum request for retries.
Format no arp retries
Mode Global Config
arp timeout
This command configures the ARP entry ageout time.
The value for
Default 1200
Format arp timeout <15-21600>
Mode Global Config
no arp timeout
This command configures the default ARP entry ageout time.
Format no arp timeout
Mode Global Config
clear arp-cache
This command causes all ARP entries of type dynamic to be removed from the ARP cache. If the gateway keyword is specified, the dynamic entries of type gateway are purged as well.
Format clear arp-cache [gateway]
Mode Privileged EXEC
clear arp-switch
Use this command to clear the contents of the switch's Address Resolution Protocol (ARP) table that contains entries learned through the Management port. To observe whether this command is successful, ping from the remote system to the DUT. Issue the show arp switch command to see the ARP entries. Then issue the clear arp-switch command and check the show arp switch entries. There will be no more arp entries.
Format clear arp-switch
Mode Privileged EXEC
show arp
This command displays the Address Resolution Protocol (ARP) cache. The displayed results are not the total ARP entries. To view the total ARP entries, the operator should view the show arp results in conjunction with the show arp switch results.
Format show arp
Mode Privileged EXEC
| Term Definition | |
| Age Time (seconds) | The time it takes for an ARP entry to age out. This is configurable. Age time is measured in seconds. |
| Response Time (seconds) | The time it takes for an ARP request timeout. This value is configurable. Response time is measured in seconds. |
| Retries The maximum number of times an ARP request is retried. This value is configurable. | |
| Cache Size The maximum number of entries in the ARP table. This value is configurable. | |
| Dynamic Renew Mode | Displays whether the ARP component automatically attempts to renew dynamic ARP entries when they age out. |
| Total Entry Count Current / Peak | The total entries in the ARP table and the peak entry count in the ARP table. |
| Static Entry Count Configured/Active / Max | The static entry count in the ARP table, the active entry count in the ARP table, the active entry count in the ARP table, and maximum static entry count in the ARP table. |
The following are displayed for each ARP entry:
| Term Definition | |
| IP Address The IP | address of a device on a subnet attached to an existing routing interface. |
| MAC Address The hardware MAC address of that device. | |
| Interface The routing unit/slot/port associated with the device ARP entry. | |
| Type The type that is configurable. The possible values are Local, Gateway, Dynamic and Static. | |
| Age The current age of the ARP entry since last refresh (in hh:mm:ss format) | |
show arp brief
This command displays the brief Address Resolution Protocol (ARP) table information.
Format show arp brief
Mode Privileged EXEC
| Term Definition | |
| Age Time (seconds) | The time it takes for an ARP entry to age out. This value is configurable. Age time is measured in seconds. |
| Response Time (seconds) | The time it takes for an ARP request timeout. This value is configurable. Response time is measured in seconds. |
| Retries The maximum number of times an ARP request is retried. This value is configurable. | |
| Cache Size The maximum number of entries in the ARP table. This value is configurable. | |
| Dynamic Renew Mode | Displays whether the ARP component automatically attempts to renew dynamic ARP entries when they age out. |
| Total Entry Count Current / Peak | The total entries in the ARP table and the peak entry count in the ARP table. |
| Static Entry Count Current / Max | The static entry count in the ARP table and maximum static entry count in the ARP table. |
show arp switch
This command displays the contents of the switch's Address Resolution Protocol (ARP) table.
Format show arp switch
Mode Privileged EXEC
| Term Definition | |
| IP Address The IP address of a device on a subnet attached to the switch. | |
| MAC Address The hardware MAC address of that device. | |
| Interface The routing unit/slot/port associated with the device’s ARP entry. | |
IP Routing Commands
This section describes the commands you use to enable and configure IP routing on the switch.
routing
This command enables IPv4 and IPv6 routing for an interface. You can view the current value for this function with the show ip brief command. The value is labeled as “Routing Mode.”
Default disabled
Format routing
Mode Interface Config
no routing
This command disables routing for an interface.
You can view the current value for this function with the show ip brief command. The value is labeled as “Routing Mode.”
Format no routing
Mode Interface Config
ip routing
This command enables the IP Router Admin Mode for the master switch.
Format ip routing
Mode Global Config
no ip routing
This command disables the IP Router Admin Mode for the master switch.
Format no ip routing
Mode Global Config
ip address
This command configures an IP address on an interface. You can also use this command to configure one or more secondary IP addresses on the interface. The value for
Format ip address
Mode Interface Config
no ip address
This command deletes an IP address from an interface. The value for
Format no ip address [{
Mode Interface Config
ip route
This command configures a static route. The
entered into the forwarding database. By specifying the preference of a static route, you control whether a static route is more or less preferred than routes from dynamic routing protocols. The preference also controls whether a static route is more or less preferred than other static routes to the same destination. A route with a preference of 255 cannot be used to forward traffic.
For the static routes to be visible, you must perform the following steps:
- Enable ip routing globally.
- Enable ip routing for the interface.
- Confirm that the associated link is also up.
Default preference—1
Format ip route
Mode Global Config
no ip route
This command deletes a single next hop to a destination static route. If you use the
Format no ip route
Mode Global Config
ip route default
This command configures the default route. The value for
Default preference—1
Format ip route default
Mode Global Config
no ip route default
This command deletes all configured default routes. If the optional
Format no ip route default [{
Mode Global Config
ip route distance
This command sets the default distance (preference) for static routes. Lower route distance values are preferred when determining the best route. The ip route and ip route default commands allow you to optionally set the distance (preference) of an individual static route. The default distance is used when no distance is specified in these commands. Changing the default distance does not update the distance of existing static routes, even if they were assigned the original default distance. The new default distance will only be applied to static routes created after invoking the ip route distance command.
Default 1
Format ip route distance <1-255>
Mode Global Config
no ip route distance
This command sets the default static route preference value in the router. Lower route preference values are preferred when determining the best route.
Format no ip route distance
Mode Global Config
ip netdirbcast
This command enables the forwarding of network-directed broadcasts. When enabled, network directed broadcasts are forwarded. When disabled they are dropped.
Default disabled
Format ip netdirbcast
Mode Interface Config
no ip netdirbcast
This command disables the forwarding of network-directed broadcasts. When disabled, network directed broadcasts are dropped.
Format no ip netdirbcast
Mode Interface Config
ip mtu
This command sets the IP Maximum Transmission Unit (MTU) on a routing interface. The IP MTU is the size of the largest IP packet that can be transmitted on the interface without fragmentation. The software currently does not fragment IP packets.
- Packets forwarded in hardware ignore the IP MTU.
- Packets forwarded in software are dropped if they exceed the IP MTU of the outgoing interface.
Packets originated on the router, such as OSPF packets, may be fragmented by the IP stack. The IP stack uses its default IP MTU and ignores the value set using the ip mtu command.
OSPF advertises the IP MTU in the Database Description packets it sends to its neighbors during database exchange. If two OSPF neighbors advertise different IP MTUs, they will not form an adjacency. (unless OSPF has been instructed to ignore differences in IP MTU with the ip ospf mtu-ignore command.)

Note: The IP MTU size refers to the maximum size of the IP packet (IP Header + IP payload). It does not include any extra bytes that may be required for Layer-2 headers. To receive and process packets, the Ethernet MTU (see “mtu” on page 3-5) must take into account the size of the Ethernet header.
Default 1500 bytes
Format ip mtu <68-1500>
Mode Interface Config
no ip mtu
This command resets the ip mtu to the default value.
Format no ip mtu
Mode Interface Config
encapsulation
This command configures the link layer encapsulation type for the packet. The encapsulation type can be ethernet or snap.
Default ethernet
Format encapsulation {ethernet | snap}
Mode Interface Config

Note: Routed frames are always ethernet encapsulated when a frame is routed to a VLAN.
clear ip route all
This command removes all the route entries learned over the network.
Format clear ip route all
Mode Privileged EXEC
Protocol Tells which protocol added the specified route. The possibilities are: local, static, OSPF, or RIP.
Total Number The total number of routes. of Routes
show ip brief
This command displays all the summary information of the IP, including the ICMP rate limit configuration and the global ICMP Redirect configuration.
Format show ip brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Default Time to Live | The computed TTL (Time to Live) of forwarding a packet from the local router to the final destination. |
| Routing Mode Shows | whether the routing mode is enabled or disabled. |
| Maximum Next Hops | The maximum number of next hops the packet can travel. |
| Maximum Routes The | maximum number of routes the packet can travel. |
| ICMP Rate Limit Interval | Shows how often the token bucket is initialized with burst-size tokens. Burst-interval is from 0 to 2147483647 milliseconds. The default burst-interval is 1000 msec. |
| ICMP Rate Limit Burst Size | Shows the number of ICMPv4 error messages that can be sent during one burst-interval. The range is from 1 to 200 messages. The default value is 100 messages. |
| ICMP Echo Replies Shows | whether ICMP Echo Replies are enabled or disabled. |
| ICMP Redirects Shows | whether ICMP Redirects are enabled or disabled. |
The following shows example CLI display output for the command.
(Switch) #show ip brief
Default Time to Live.... 64
Routing Mode.... Disabled
Maximum Next Hops.... 4
Maximum Routes.... 6000
ICMP Rate Limit Interval.... 1000 msec
ICMP Rate Limit Burst Size.... 100 messages
ICMP Echo Replies.... Enabled
ICMP Redirects.... Enabled
show ip interface
This command displays all pertinent information about the IP interface.
Format show ip interface {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Routing Interface Status | Determine the operational status of IPv4 routing Interface. The possible values are Up or Down. |
| Primary IP Address | The primary IP address and subnet masks for the interface. This value appears only if you configure it. |
| Secondary IP Address | One or more secondary IP addresses and subnet masks for the interface. This value appears only if you configure it. |
| Helper IP Address | The helper IP addresses configured by the “ip helper-address (Global Config)command. |
| Routing Mode | The administrative mode of router interface participation. The possible values are enable or disable. This value is configurable. |
| Administrative Mode | The administrative mode of the specified interface. The possible values of this field are enable or disable. This value is configurable. |
| Forward Net Directed Broadcasts | Displays whether forwarding of network-directed broadcasts is enabled or disabled. This value is configurable. |
| Proxy ARP Displays | Whether Proxy ARP is enabled or disabled on the system. |
| Local Proxy ARP | Displays whether Local Proxy ARP is enabled or disabled on the interface. |
| Active State | Displays whether the interface is active or inactive. An interface is considered active if its link is up and it is in forwarding state. |
| Link Speed Data Rate | An integer representing the physical link data rate of the specified interface. This is measured in Megabits per second (Mbps). |
| MAC Address | The burned in physical address of the specified interface. The format is 6 two-digit hexadecimal numbers that are separated by colons. |
| Encapsulation Type | The encapsulation type for the specified interface. The types are: Ethernet or SNAP. |
| IP MTU The maximum transmission unit (MTU) size of a frame, in bytes. | |
| Bandwidth Shows | the bandwidth of the interface. |
| Destination Unreachables | Displays whether ICMP Destination Unreachables may be sent (enabled or disabled). |
| ICMP Redirects | Displays whether ICMP Redirects may be sent (enabled or disabled). |
The following shows example CLI display output for the command.
(switch)#show ip interface 1/0/2
Routing Interface Status.... Down
Primary IP Address.... 1.2.3.4/255.255.255.0
Secondary IP Address(es) 21.2.3.4/255.255.255.0
22.2.3.4/255.255.255.0
Helper IP Address.... 1.2.3.4
1.2.3.5
| Routing Mode...... | Disable |
| Administrative Mode...... | Enable |
| Forward Net Directed Broadcasts...... | Disable |
| Proxy ARP...... | Enable |
| Local Proxy ARP...... | Disable |
| Active State...... | Inactive |
| Link Speed Data Rate...... | Inactive |
| MAC Address...... | 00:10:18:82:0C:68 |
| Encapsulation Type...... | Ethernet |
| IP MTU...... | 1500 |
| Bandwidth...... | 100000 kbps |
| Destination Unreachables...... | Enabled |
| ICMP Redirects...... | Enabled |
show ip interface brief
This command displays summary information about IP configuration settings for all ports in the router.
Format show ip interface brief
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| State Routing operational state of the interface. | |
| IP Address The IP address of the routing interface in 32-bit dotted decimal format. | |
| IP Mask The IP mask of the routing interface in 32-bit dotted decimal format. | |
| Netdir Bcast | Indicates if IP forwards net-directed broadcasts on this interface. Possible values are Enable or Disable. |
| MultiCast Fwd | The multicast forwarding administrative mode on the interface. Possible values are Enable or Disable. |
show ip route
This command displays the routing table. The
prefixes keyword, the
| Note: If you use the connected keyword for, the all option is not available because there are no best or non-best connected routes. |
Format show ip route [{
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Route Codes | The key for the routing protocol codes that might appear in the routing table output. |
The show ip route command displays the routing tables in the following format:
Code IP-Address/Mask [Preference/Metric] via Next-Hop, Route-Timestamp, Interface
The columns for the routing table display the following information:
| Term Definition | |
| Code The codes for the routing protocols that created the routes. | |
| IP-Address/Mask The IP-Address and mask of the destination network corresponding to this route. | |
| Preference The adm inistrative distance associated with this route. Routes with low values are preferred over routes with higher values. | |
| Metric The cost associated with this route. | |
| via Next-Hop | The outgoing router IP address to use when forwarding traffic to the next router (if any) in the path toward the destination. |
| Route-Timestamp | The last updated time for dynamic routes. The format of Route-Timestamp will beDays:Hours:Minutes if days >= 1Hours:Minutes:Seconds if days < 1 |
| Interface | The outgoing router interface to use when forwarding traffic to the next destination. For reject routes, the next hop interface would be Null0 interface. |
To administratively control the traffic destined to a particular network and prevent it from being forwarded through the router, you can configure a static reject route on the router. Such traffic would be discarded and the ICMP destination unreachable message is sent back to the source. This is typically used for preventing routing loops. The reject route added in the RTO is of the type OSPF Inter-Area. Reject routes (routes of REJECT type installed by any protocol) are not redistributed by OSPF/RIP. Reject routes are supported in both OSPFv2 and OSPFv3.
The following shows example CLI display output for the command.
(Switch) #show ip route
Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, S - Static
B - BGP Derived, IA - OSPF Inter Area
E1 - OSPF External Type 1, E2 - OSPF External Type 2
N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2
C 1.1.1.0/24 [0/1] directly connected, 0/11
C 2.2.2.0/24 [0/1] directly connected, 0/1
C 5.5.5.0/24 [0/1] directly connected, 0/5
S 7.0.0.0/8 [1/0] directly connected, Null0
OIA 10.10.10.0/24 [110/6] via 5.5.5.2, 00h:00m:01s, 0/5
C 11.11.11.0/24 [0/1] directly connected, 0/11
S 12.0.0.0/8 [5/0] directly connected, Null0
S 23.0.0.0/8 [3/0] directly connected, Null0
show ip route summary
Use this command to display the routing table summary. Use the optional all parameter to show the number of all routes, including best and non-best routes. To include only the number of best routes, do not use the optional parameter.
Format show ip route summary [all]
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Connected Routes | The total number of connected routes in the routing table. |
| Static Routes Total | number of static routes in the routing table. |
| RIP Routes Total | number of routes installed by RIP protocol. |
| OSPF Routes Total | number of routes installed by OSPF protocol. |
| Reject Routes Total number of reject routes installed by all protocols. | |
| Total Routes Total number of routes in the routing table. | |
The following shows example CLI display output for the command.
(Switch) #show ip route summary
| Connected Routes......1 |
| Static Routes......7 |
| RIP Routes......0 |
| BGP Routes......0 |
| OSPF Routes......0 |
| Intra Area Routes......0 |
| Inter Area Routes......0 |
| External Type-1 Routes......0 |
| External Type-2 Routes......0 |
| Reject Routes......2 |
| Total routes......8 |
show ip route preferences
This command displays detailed information about the route preferences. Route preferences are used in determining the best route. Lower router preference values are preferred over higher router preference values. A route with a preference of 255 cannot be used to forward traffic.
Format show ip route preferences
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Local The local route preference value. | |
| Static The static route preference value. | |
| OSPF Intra The OSPF Intra route preference value. | |
| OSPF Inter The OSPF Inter route preference value. | |
| OSPF External The OSPF External route preference value. | |
| RIP The RIP route preference value. | |
show ip stats
This command displays IP statistical information. Refer to RFC 1213 for more information about the fields that are displayed.
Format show ip stats
Modes • Privileged EXEC
- User EXEC
Router Discovery Protocol Commands
This section describes the commands you use to view and configure Router Discovery Protocol settings on the switch. The Router Discovery Protocol enables a host to discover the IP address of routers on the subnet.
ip irdp
This command enables Router Discovery on an interface.
Default disabled
Format ip irdp
Mode Interface Config
no ip irdp
This command disables Router Discovery on an interface.
Format no ip irdp
Mode Interface Config
ip irdp address
This command configures the address that the interface uses to send the router discovery advertisements. The valid values for
Default 224.0.0.1
Format ip irdp address
Mode Interface Config
no ip irdp address
This command configures the default address used to advertise the router for the interface.
Format no ip irdp address
Mode Interface Config
ip irdp holdtime
This command configures the value, in seconds, of the holdtime field of the router advertisement sent from this interface. The holdtime range is the value of
Default 3 * maxinterval
Format ip irdp holdtime
Mode Interface Config
no ip irdp holdtime
This command configures the default value, in seconds, of the holdtime field of the router advertisement sent from this interface.
Format no ip irdp holdtime
Mode Interface Config
ip irdp maxadvertinterval
This command configures the maximum time, in seconds, allowed between sending router advertisements from the interface. The range for maxadvertinterval is 4 to 1800 seconds.
Default 600
Format ip irdp maxadvertinterval <4-1800>
Mode Interface Config
no ip irdp maxadvertinterval
This command configures the default maximum time, in seconds.
Format no ip irdp maxadvertinterval
Mode Interface Config
ip irdp minadvertinterval
This command configures the minimum time, in seconds, allowed between sending router advertisements from the interface. The range for minadvertinterval is three to the value of maxadvertinterval.
Default 0.75 * maxadvertinterval
Format ip irdp minadvertinterval <3-maxadvertinterval>
Mode Interface Config
no ip irdp minadvertinterval
This command sets the default minimum time to the default.
Format no ip irdp minadvertinterval
Mode Interface Config
ip irdp preference
This command configures the preferability of the address as a default router address, relative to other router addresses on the same subnet.
Default 0
Format ip irdp preference <-2147483648 to 2147483647>
Mode Interface Config
no ip irdp preference
This command configures the default preferability of the address as a default router address, relative to other router addresses on the same subnet.
Format no ip irdp preference
Mode Interface Config
show ip irdp
This command displays the router discovery information for all interfaces, or a specified interface.
Format show ip irdp {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface | Thethat matches the rest of the information in the row. |
| Ad Mode The advertise mode, which indicates whether router discovery is enabled or disabled on this interface. | |
| Advertise Address | The IP address to which the interface sends the advertisement. |
| Max Int The maximum advertise interval, which is the maximum time, in seconds, allowed between sending router advertisements from the interface. | |
| Min Int | The minimum advertise interval, which is the minimum time, in seconds, allowed between sending router advertisements from the interface. |
| Hold Time The amount of time, in seconds, that a system should keep the router advertisement before discarding it. | |
| Preference The preference of the address as a default router address, relative to other router addresses on the same subnet. | |
Virtual LAN Routing Commands
This section describes the commands you use to view and configure VLAN routing and to view VLAN routing status information.
vlan routing
This command creates routing on a VLAN. The
Format vlan routing
Mode VLAN Config
no vlan routing
This command deletes routing on a VLAN. The
Format no vlan routing
Mode VLAN Config
show ip vlan
This command displays the VLAN routing information for all VLANs with routing enabled.
Format show ip vlan
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| MAC Address used by Routing VLANs | The MAC Address associated with the internal bridge-router interface (IBRI). The same MAC Address is used by all VLAN routing interfaces. It will be displayed above the per-VLAN information. |
| VLAN ID The identifier of the VLAN. | |
| Logical Interface | The logical unit/slot/port associated with the VLAN routing interface. |
| IP Address The IP address associated with this VLAN. | |
| Subnet Mask The subnet mask that is associated with this VLAN. | |
Virtual Router Redundancy Protocol Commands
This section describes the commands you use to view and configure Virtual Router Redundancy Protocol (VRRP) and to view VRRP status information. VRRP helps provide failover and load balancing when you configure two devices as a VRRP pair.
ip vrrp (Global Config)
Use this command in Global Config mode to enable the administrative mode of VRRP on the router.
Default none
Format ip vrrp
Mode Global Config
no ip vrrp
Use this command in Global Config mode to disable the default administrative mode of VRRP on the router.
Format no ip vrrp
Mode Global Config
ip vrrp (Interface Config)
Use this command in Interface Config mode to create a virtual router associated with the interface. The parameter
Format ip vrrp
Mode Interface Config
no ip vrrp
Use this command in Interface Config mode to delete the virtual router associated with the interface. The virtual Router ID,
Format no ip vrrp
Mode Interface Config
ip vrrp mode
This command enables the virtual router configured on the specified interface. Enabling the status field starts a virtual router. The parameter
Default disabled
Format ip vrrp
Mode Interface Config
no ip vrrp mode
This command disables the virtual router configured on the specified interface. Disabling the status field stops a virtual router.
Format no ip vrrp
Mode Interface Config
ip vrrp ip
This command sets the virtual router IP address value for an interface. The value for
Default none
Format ip vrrp
Mode Interface Config
no ip vrrp ip
Use this command in Interface Config mode to delete a secondary IP address value from the interface. To delete the primary IP address, you must delete the virtual router on the interface.
Format no ip vrrp
Mode Interface Config
ip vrrp authentication
This command sets the authorization details value for the virtual router configured on a specified interface. The parameter {none | simple} specifies the authorization type for virtual router configured on the specified interface. The parameter [key] is optional, it is only required when authorization type is simple text password. The parameter
Default no authorization
Format ip vrrp
Mode Interface Config
no ip vrrp authentication
This command sets the default authorization details value for the virtual router configured on a specified interface.
Format no ip vrrp
Mode Interface Config
ip vrrp preempt
This command sets the preemption mode value for the virtual router configured on a specified interface. The parameter
Default enabled
Format ip vrrp
Mode Interface Config
no ip vrrp preempt
This command sets the default preemption mode value for the virtual router configured on a specified interface.
Format no ip vrrp
Mode Interface Config
ip vrrp priority
This command sets the priority of a router within a VRRP group. Higher values equal higher priority. The range is from 1 to 254. The parameter
The router with the highest priority is elected master. If a router is configured with the address used as the address of the virtual router, the router is called the “address owner.” The priority of the address owner is always 255 so that the address owner is always master. If the master has a priority less than 255 (it is not the address owner) and you configure the priority of another router in the group higher than the master’s priority, the router will take over as master only if preempt mode is enabled.
Default 100 unless the router is the address owner, in which case its priority is automatically set to 255.
Format ip vrrp
Mode Interface Config
no ip vrrp priority
This command sets the default priority value for the virtual router configured on a specified interface.
Format no ip vrrp
Mode Interface Config
ip vrrp timers advertise
This command sets the frequency, in seconds, that an interface on the specified virtual router sends a virtual router advertisement.
Default 1
Format ip vrrp
Mode Interface Config
no ip vrrp timers advertise
This command sets the default virtual router advertisement value for an interface.
Format no ip vrrp
Mode Interface Config
ip vrrp track interface
Use this command to alter the priority of the VRRP router based on the availability of its interfaces. This command is useful for tracking interfaces that are not configured for VRRP. Only IP interfaces are tracked. A tracked interface is up if the IP on that interface is up. Otherwise, the tracked interface is down.
When the tracked interface is down or the interface has been removed from the router, the priority of the VRRP router will be decremented by the value specified in the
A VRRP configured interface can track more than one interface. When a tracked interface goes down, then the priority of the router will be decreased by 10 (the default priority decrement) for each downed interface. The default priority decrement is changed using the
The default priority of the virtual router is 100, and the default decrement priority is 10. By default, no interfaces are tracked. If you specify just the interface to be tracked, without giving the optional priority, then the default priority will be set. The default priority decrement is 10.
Default priority: 10
Format ip vrrp
Mode Interface Config
no ip vrrp track interface
Use this command to remove the interface from the tracked list or to restore the priority decrement to its default.
Format no ip vrrp
Mode Interface Config
ip vrrp track ip route
Use this command to track the route reachability. When the tracked route is deleted, the priority of the VRRP router will be decremented by the value specified in the
A VRRP configured interface can track more than one route. When a tracked route goes down, then the priority of the router will be decreased by 10 (the default priority decrement) for each downed route. By default no routes are tracked. If you specify just the route to be tracked, without giving the optional priority, then the default priority will be set. The default priority decrement is 10. The default priority decrement is changed using the
Default priority: 10
Format ip vrrp
Mode Interface Config
no ip vrrp track ip route
Use this command to remove the route from the tracked list or to restore the priority decrement to its default. When removing a tracked IP route from the tracked list, the priority should be incremented by the decrement value if the route is not reachable.
Format no ip vrrp
Mode Interface Config
show ip vrrp interface stats
This command displays the statistical information about each virtual router configured on the switch.
Format show ip vrrp interface stats
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Uptime The time that the virtual router has been up, in days, hours, minutes and seconds. | |
| Protocol The protocol configured on the interface. | |
| State Transitioned to Master | The total number of times virtual router state has changed to MASTER. |
| Advertisement Received | The total number of VRRP advertisements received by this virtual router. |
| Advertisement Interval Errors | The total number of VRRP advertisements received for which advertisement interval is different than the configured value for this virtual router. |
| Authentication Failure | The total number of VRRP packets received that don't pass the authentication check. |
| IP TTL errors | The total number of VRRP packets received by the virtual router with IP TTL (time to live) not equal to 255. |
| Zero Priority Packets Received | The total number of VRRP packets received by virtual router with a priority of '0'. |
| Zero Priority Packets Sent | The total number of VRRP packets sent by the virtual router with a priority of '0'. |
| Invalid Type Packets Received | The total number of VRRP packets received by the virtual router with invalid 'type' field. |
| Address List Errors | The total number of VRRP packets received for which address list does not match the locally configured list for the virtual router. |
| Invalid Authentication Type | The total number of VRRP packets received with unknown authentication type. |
| Authentication Type Mismatch | The total number of VRRP advertisements received for which 'auth type' not equal to locally configured one for this virtual router. |
| Packet Length Errors | The total number of VRRP packets received with packet length less than length of VRRP header. |
show ip vrrp
This command displays whether VRRP functionality is enabled or disabled on the switch. It also displays some global parameters which are required for monitoring. This command takes no options.
Format show ip vrrp
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Admin Mode The | administrative mode for VRRP functionality on the switch. |
| Router Checksum Errors | The total number of VRRP packets received with an invalid VRRP checksum value. |
| Router Version Errors | The total number of VRRP packets received with Unknown or unsupported version number. |
| Router VRID Errors | The total number of VRRP packets received with invalid VRID for this virtual router. |
show ip vrrp interface
This command displays all configuration information and VRRP router statistics of a virtual router configured on a specific interface. Use the output of the command to verify the track interface and track IP route configurations.
Format show ip vrrp interface {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Primary IP Address | The configured IP address for the Virtual router. |
| VMAC address The VMAC address of the specified router. | |
| Authentication type | The authentication type for the specific virtual router. |
| Priority | The priority value for the specific virtual router, taking into account any priority decrements for tracked interfaces or routes. |
| Configured Priority | The priority configured through the ip vrrp <vrid> priority <1-254> command. |
| Advertisement interval | The advertisement interval in seconds for the specific virtual router. |
| Pre-Empt Mode The preemption mode configured on the specified virtual router. | |
| Administrative Mode | The status (Enable or Disable) of the specific router. |
| State The state (Master/backup) of the virtual router. | |
The following shows example CLI display output for the command.
show ip vrrp interface
Primary IP Address.... 1.1.1.5
VMAC Address.... 00:00:5e:00:01:01
Authentication Type.... None
Priority.... 80
Configured priority.... 100
Advertisement Interval (secs).... 1
Pre-empt Mode..... Enable
Administrative Mode..... Enable
State...... Initialized
Track Interface
State
DecrementPriority
| <1/0/1> | down | 10 |
| TrackRoute (pfx/len) | State DecrementPriority | |
| 10.10.10.1/255.255.255.0 | down | 10 |
show ip vrrp interface brief
This command displays information about each virtual router configured on the switch. This command takes no options. It displays information about each virtual router.
Format show ip vrrp interface brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| VRID The router ID of the virtual router. | |
| IP Address The virtual router IP address. | |
| Mode Indicates whether the virtual router is enabled or disabled. | |
| State The state (Master/backup) of the virtual router. | |
DHCP and BOOTP Relay Commands
This section describes the commands you use to configure BootP/DHCP Relay on the switch. A DHCP relay agent operates at Layer 3 and forwards DHCP requests and replies between clients and servers when they are not on the same physical subnet.
bootpdhcprelay cidoptmode
This command enables the circuit ID option mode for BootP/DHCP Relay on the system.
Default disabled
Format bootpdhcprelay cidoptmode
Mode Global Config
no bootpdhcprelay cidoptmode
This command disables the circuit ID option mode for BootP/DHCP Relay on the system.
Format no bootpdhcprelay cidoptmode
Mode Global Config
bootpdhcprelay maxhopcount
This command configures the maximum allowable relay agent hops for BootP/DHCP Relay on the system. The
Default 4
Format bootpdhcprelay maxhopcount <1-16>
Mode Global Config
no bootpdhcprelay maxhopcount
This command configures the default maximum allowable relay agent hops for BootP/DHCP Relay on the system.
Format no bootpdhcprelay maxhopcount
Mode Global Config
bootpdhcprelay minwaittime
This command configures the minimum wait time in seconds for BootP/DHCP Relay on the system. When the BOOTP relay agent receives a BOOTREQUEST message, it MAY use the seconds-since-client-began-booting field of the request as a factor in deciding whether to relay the request or not. The parameter has a range of 0 to 100 seconds.
Default 0
Format bootpdhcprelay minwaittime <0-100>
Mode Global Config
no bootpdhcprelay minwaittime
This command configures the default minimum wait time in seconds for BootP/DHCP Relay on the system.
Format no bootpdhcprelay minwaittime
Mode Global Config
show bootpdhcprelay
This command displays the BootP/DHCP Relay information.
Format show bootpdhcprelay
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Maximum Hop Count | The maximum allowable relay agent hops. |
| Minimum Wait Time (Seconds) | The minimum wait time. |
| Admin Mode Indicates whether relaying of requests is enabled or disabled. | |
| Server IP Address | The IP address for the BootP/DHCP Relay server. |
| Circuit Id Option Mode | The DHCP circuit Id option which may be enabled or disabled. |
| Requests Received | The number or requests received. |
| Requests Relayed | The number of requests relayed. |
| Packets Discarded | The number of packets discarded. |
IP Helper Commands
This section describes the commands to configure a DHCP relay agent with multiple DHCP server addresses per routing interface, and to use different server addresses for client packets arriving on different interfaces on the relay agent.
ip helper-address (Global Config)
Use the Global Configuration ip helper-address command to have the switch forward User Datagram Protocol (UDP) broadcasts received on an interface. To disable the forwarding of broadcast packets to specific addresses, use the no form of this command.
The ip helper-address command forwards specific UDP broadcast from one interface to another. You can define many helper addresses but the total number of address-port pairs is limited to 128 for the whole device. The setting of a helper address for a specific interface has precedence over a setting of a helper address for all interfaces. You cannot enable forwarding of BOOTP/DHCP packets (ports 67,68) with this command. If you want to relay BOOTP/DHCP packets, use the DHCP relay commands.
Ip-address: Destination broadcast or host address to be used when forwarding UDP broadcasts. You can specify 0.0.0.0 to indicate not to forward the UDP packet to any host and use "255.255.255.255" to broadcast the UDP packets to all hosts on the target subnet.
udp-port-list: The broadcast packet destination UDP port number to forward. If not specified, packets for the default services are forwarded to the helper address. Valid range, 0-65535.
Default Disabled
Format ip helper-address <ip-address>
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode Global Config
no ip helper-address (Global Config)
Use this command to remove the IP address from the previously configured list. The no command without an
Format no ip helper-address {<ip-address>}
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode GlobalConfig
ip helper-address
Use this command to add a unicast helper address to the list of helper addresses on an interface. This is the address of a DHCP server. This command can be applied multiple times on the routing interface to form the helper addresses list until the list reaches the maximum supported helper addresses.
Format ip helper-address <ip-address>
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode Interface Config
no ip helper-address
Use this command to remove the IP address from the previously configured list. The no command without an
Format no ip helper-address {<ip-address>}
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode Interface Config
ip helper-address discard
Use this command to drop matching packets.
Format ip helper-address discard
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode Interface Config
no ip helper-address discard
Use this command to permit the matching packets.
Format no ip helper-address discard
{<1-65535>|dhcp|domain|isakmp|mobile-ip|nameserver|
netbios-dgm|netbios-ns|ntp|pim-auto-rip|rip|tacacs|tftp|time}
Mode Interface Config
show ip helper-address
Use this command to display the configured helper addresses on the given interface.
Format show ip helper-address
Mode • Privileged EXEC • User EXEC
The following shows example CLI display output for the command.
(switch) #show ip helper-address 1/0/1
Helper IP Address.... 1.2.3.4
1.2.3.5
Open Shortest Path First (OSPF) Commands
This section describes the commands you use to view and configure OSPF, which is a link-state routing protocol that you use to route traffic within a network.
router ospf
Use this command to enter Router OSPF mode.
Format router ospf
Mode Global Config
enable (OSPF)
This command resets the default administrative mode of OSPF in the router (active).
Default enabled
Format enable
Mode Router OSPF Config
no enable (OSPF)
This command sets the administrative mode of OSPF in the router to inactive.
Format no enable
Mode Router OSPF Config
network area (OSPF)
Use this command to enable OSPFv2 on an interface and set its area ID if the IP address of an interface is covered by this network command.
Default disabled
Format network
Mode Router OSPF Config
no network area (OSPF)
Use this command to disable the OSPFv2 on a interface if the IP address of an interface was earlier covered by this network command.
Format no network
Mode Router OSPF Config
ip ospf area
Use this command to enable OSPFv2 and set the area ID of an interface. The
Default disabled
Format ip ospf area
Mode Interface Config
no ip ospf area
Use this command to disable OSPF on an interface.
Format no ip ospf area [secondaries none]
Mode Interface Config
1583compatibility
This command enables OSPF 1583 compatibility.

Note: 1583 compatibility mode is enabled by default. If all OSPF routers in the routing domain are capable of operating according to RFC 2328, OSPF 1583 compatibility mode should be disabled.
Default enabled
Format 1583compatibility
Mode Router OSPF Config
no 1583compatibility
This command disables OSPF 1583 compatibility.
Format no 1583compatibility
Mode Router OSPF Config
area default-cost (OSPF)
This command configures the default cost for the stub area. You must specify the area ID and an integer value between 1-16777215.
Format area
Mode Router OSPF Config
area nssa (OSPF)
This command configures the specified areaid to function as an NSSA.
Format area
Mode Router OSPF Config
no area nssa
This command disables nssa from the specified area id.
Format no area
Mode Router OSPF Config
area nssa default-info-originate (OSPF)
This command configures the metric value and type for the default route advertised into the NSSA. The optional metric parameter specifies the metric of the default route and is to be in a range of 1-16777214. If no metric is specified, the default value is 10. The metric type can be comparable (nssa-external 1) or non-comparable (nssa-external 2).
Format area
Mode Router OSPF Config
no area nssa default-info-originate (OSPF)
This command disables the default route advertised into the NSSA.
Format no area
Mode Router OSPF Config
area nssa no-redistribute (OSPF)
This command configures the NSSA Area Border router (ABR) so that learned external routes will not be redistributed to the NSSA.
Format area
Mode Router OSPF Config
no area nssa no-redistribute (OSPF)
This command disables the NSSA ABR so that learned external routes are redistributed to the NSSA.
Format no area
Mode Router OSPF Config
area nssa no-summary (OSPF)
This command configures the NSSA so that summary LSAs are not advertised into the NSSA.
Format area
Mode Router OSPF Config
no area nssa no-summary (OSPF)
This command disables nssa from the summary LSAs.
Format no area
Mode Router OSPF Config
area nssa translator-role (OSPF)
This command configures the translator role of the NSSA. A value of always causes the router to assume the role of the translator the instant it becomes a border router and a value of candidate causes the router to participate in the translator election process when it attains border router status.
Format area
Mode Router OSPF Config
no area nssa translator-role (OSPF)
This command disables the nssa translator role from the specified area id.
Format no area
Mode Router OSPF Config
area nssa translator-stab-intv (OSPF)
This command configures the translator
Format area
Mode Router OSPF Config
no area nssa translator-stab-intv (OSPF)
This command disables the nssa translator's
Format no area
Mode Router OSPF Config
area range (OSPF)
This command creates a specified area range for a specified NSSA. The
Format area
Mode Router OSPF Config
no area range
This command deletes a specified area range. The
Format no area
Mode Router OSPF Config
area stub (OSPF)
This command creates a stub area for the specified area ID. A stub area is characterized by the fact that AS External LSAs are not propagated into the area. Removing AS External LSAs and Summary LSAs can significantly reduce the link state database of routers within the stub area.
Format area
Mode Router OSPF Config
no area stub
This command deletes a stub area for the specified area ID.
Format no area
Mode Router OSPF Config
area stub no-summary (OSPF)
This command configures the Summary LSA mode for the stub area identified by
Default disabled
Format area
Mode Router OSPF Config
no area stub no-summary
This command configures the default Summary LSA mode for the stub area identified by
Format no area
Mode Router OSPF Config
area virtual-link (OSPF)
This command creates the OSPF virtual interface for the specified
Format area
Mode Router OSPF Config
no area virtual-link
This command deletes the OSPF virtual interface from the given interface, identified by
Format no area
Mode Router OSPF Config
area virtual-link authentication
This command configures the authentication type and key for the OSPF virtual interface identified by
Default none
Format area
Mode Router OSPF Config
no area virtual-link authentication
This command configures the default authentication type for the OSPF virtual interface identified by
Format no area
Mode Router OSPF Config
area virtual-link dead-interval (OSPF)
This command configures the dead interval for the OSPF virtual interface on the virtual interface identified by
Default 40
Format area
Mode Router OSPF Config
no area virtual-link dead-interval
This command configures the default dead interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPF Config
area virtual-link hello-interval (OSPF)
This command configures the hello interval for the OSPF virtual interface on the virtual interface identified by
Default 10
Format area
Mode Router OSPF Config
no area virtual-link hello-interval
This command configures the default hello interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPF Config
area virtual-link retransmit-interval (OSPF)
This command configures the retransmit interval for the OSPF virtual interface on the virtual interface identified by
Default 5
Format area
Mode Router OSPF Config
no area virtual-link retransmit-interval
This command configures the default retransmit interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPF Config
area virtual-link transmit-delay (OSPF)
This command configures the transmit delay for the OSPF virtual interface on the virtual interface identified by
Default 1
Format area
Mode Router OSPF Config
no area virtual-link transmit-delay
This command resets the default transmit delay for the OSPF virtual interface to the default value.
Format no area
Mode Router OSPF Config
auto-cost (OSPF)
By default, OSPF computes the link cost of each interface from the interface bandwidth. Faster links have lower metrics, making them more attractive in route selection. The configuration parameters in the auto-cost reference bandwidth and bandwidth commands give you control over the default link cost. You can configure for OSPF an interface bandwidth that is independent of the actual link speed. A second configuration parameter allows you to control the ratio of interface bandwidth to link cost. The link cost is computed as the ratio of a reference bandwidth to the interface bandwidth (ref_bw / interface bandwidth), where interface bandwidth is defined by the bandwidth command. Because the default reference bandwidth is 100 Mbps, OSPF uses the same default link cost for all interfaces whose bandwidth is 100 Mbps or greater.
Use the auto-cost command to change the reference bandwidth, specifying the reference bandwidth in megabits per second (Mbps). The reference bandwidth range is 1-4294967 Mbps. The different reference bandwidth can be independently configured for OSPFv2 and OSPFv3.
Default 100Mbps
Format auto-cost reference-bandwidth <1 to 4294967>
Mode Router OSPF Config
no auto-cost reference-bandwidth (OSPF)
Use this command to set the reference bandwidth to the default value.
Format no auto-cost reference-bandwidth
Mode Router OSPF Config
bandwidth
By default, OSPF computes the link cost of an interface as the ratio of the reference bandwidth to the interface bandwidth. Reference bandwidth is specified with the auto-cost command. For the purpose of the OSPF link cost calculation, use the bandwidth command to specify the interface bandwidth. The bandwidth is specified in kilobits per second. If no bandwidth is configured, the bandwidth defaults to the actual interface bandwidth for port-based routing interfaces and to 10 Mbps for VLAN routing interfaces. This command does not affect the actual speed of an interface.
Default actual interface bandwidth
Format bandwidth <1-10000000>
Mode Interface Config
no bandwidth
Use this command to set the interface bandwidth to its default value.
Format no bandwidth
Mode Interface Config
capability opaque
Use this command to enable Opaque Capability on the Router. The information contained in Opaque LSAs may be used directly by OSPF or indirectly by an application wishing to distribute information throughout the OSPF domain. The 7000 series supports the storing and flooding of Opaque LSAs of different scopes.
Default disabled
Format capability opaque
Mode Router OSPF Config
no capability opaque
Use this command to disable opaque capability on the router.
Format no capability opaque
Mode Router OSPF Config
clear ip ospf
Use this command to disable and re-enable OSPF.
Format clear ip ospf
Mode Privileged EXEC
clear ip ospf configuration
Use this command to reset the OSPF configuration to factory defaults.
Format clear ip ospf configuration
Mode Privileged EXEC
clear ip ospf counters
Use this command to reset global and interface statistics.
Format clear ip ospf counters
Mode Privileged EXEC
clear ip ospf neighbor
Use this command to drop the adjacency with all OSPF neighbors. On each neighbor's interface, send a one-way hello. Adjacencies may then be re-established. To drop all adjacencies with a specific router ID, specify the neighbor's Router ID using the optional parameter [neighbor-id].
Format clear ip ospf neighbor [neighbor-id]
Mode Privileged EXEC
clear ip ospf neighbor interface
To drop adjacency with all neighbors on a specific interface, use the optional parameter [unit/slot/port]. To drop adjacency with a specific router ID on a specific interface, use the optional parameter [neighbor-id].
Format clear ip ospf neighbor interface [unit/slot/port] [neighbor-id]
Mode Privileged EXEC
clear ip ospf redistribution
Use this command to flush all self-originated external LSAs. Reapply the redistribution configuration and re-originate prefixes as necessary.
Format clear ip ospf redistribution
Mode Privileged EXEC
default-information originate (OSPF)
This command is used to control the advertisement of default routes.
Default • metric—unspecified
• type—2
Format default-information originate [always] [metric <0-16777214>] [metric-type {1 | 2}]
Mode Router OSPF Config
no default-information originate (OSPF)
This command is used to control the advertisement of default routes.
Format no default-information originate [metric] [metric-type]
Mode Router OSPF Config
default-metric (OSPF)
This command is used to set a default for the metric of distributed routes.
Format default-metric <1-16777214>
Mode Router OSPF Config
no default-metric (OSPF)
This command is used to set a default for the metric of distributed routes.
Format no default-metric
Mode Router OSPF Config
distance ospf (OSPF)
This command sets the route preference value of OSPF in the router. Lower route preference values are preferred when determining the best route. The type of OSPF route can be intra, inter, or external. All the external type routes are given the same preference value. The range of
Default 110
Format distance ospf {intra-area <1-255> | inter-area <1-255> | external <1-255>}
Mode Router OSPF Config
no distance ospf
This command sets the default route preference value of OSPF routes in the router. The type of OSPF can be intra, inter, or external. All the external type routes are given the same preference value.
Format no distance ospf {intra-area | inter-area | external}
Mode Router OSPF Config
distribute-list out (OSPF)
Use this command to specify the access list to filter routes received from the source protocol.
Format distribute-list <1-199> out {rip | static | connected}
Mode Router OSPF Config
no distribute-list out
Use this command to specify the access list to filter routes received from the source protocol.
Format no distribute-list <1-199> out {rip | static | connected}
Mode Router OSPF Config
exit-overflow-interval (OSPF)
This command configures the exit overflow interval for OSPF. It describes the number of seconds after entering overflow state that a router will wait before attempting to leave the overflow state. This allows the router to again originate non-default AS-external-LSAs. When set to 0, the router will not leave overflow state until restarted. The range for seconds is 0 to 2147483647 seconds.
Default 0
Format exit-overflow-interval
Mode Router OSPF Config
no exit-overflow-interval
This command configures the default exit overflow interval for OSPF.
Format no exit-overflow-interval
Mode Router OSPF Config
external-lsdb-limit (OSPF)
This command configures the external LSDB limit for OSPF. If the value is -1, then there is no limit. When the number of non-default AS-external-LSAs in a router's link-state database reaches the external LSDB limit, the router enters overflow state. The router never holds more than the external LSDB limit non-default AS-external-LSAs in it database. The external LSDB limit MUST be set identically in all routers attached to the OSPF backbone and/or any regular OSPF area. The range for limit is -1 to 2147483647.
Default -1
Format external-lsdb-limit
Mode Router OSPF Config
no external-lsdb-limit
This command configures the default external LSDB limit for OSPF.
Format no external-lsdb-limit
Mode Router OSPF Config
ip ospf authentication
This command sets the OSPF Authentication Type and Key for the specified interface. The value of
Unauthenticated interfaces do not need an authentication key or authentication key ID. There is no default value for this command.
Format ip ospf authentication {none | {simple
Mode Interface Config
no ip ospf authentication
This command sets the default OSPF Authentication Type for the specified interface.
Format no ip ospf authentication
Mode Interface Config
ip ospf cost
This command configures the cost on an OSPF interface. The
Default 10
Format ip ospf cost <1-65535>
Mode Interface Config
no ip ospf cost
This command configures the default cost on an OSPF interface.
Format no ip ospf cost
Mode Interface Config
ip ospf dead-interval
This command sets the OSPF dead interval for the specified interface. The value for
Default 40
Format ip ospf dead-interval
Mode Interface Config
no ip ospf dead-interval
This command sets the default OSPF dead interval for the specified interface.
Format no ip ospf dead-interval
Mode Interface Config
ip ospf hello-interval
This command sets the OSPF hello interval for the specified interface. The value for seconds is a valid positive integer, which represents the length of time in seconds. The value for the length of time must be the same for all routers attached to a network. Valid values range from 1 to 65535.
Default 10
Format ip ospf hello-interval
Mode Interface Config
no ip ospf hello-interval
This command sets the default OSPF hello interval for the specified interface.
Format no ip ospf hello-interval
Mode Interface Config
ip ospf network
Use this command to configure OSPF to treat an interface as a point-to-point rather than broadcast interface. The broadcast option sets the OSPF network type to broadcast. The point-to-point option sets the OSPF network type to point-to-point. OSPF treats interfaces as broadcast interfaces by default. (Loopback interfaces have a special loopback network type, which cannot be changed.) When there are only two routers on the network, OSPF can operate more efficiently by treating the network as a point-to-point network. For point-to-point networks, OSPF does not elect a designated router or generate a network link state advertisement (LSA). Both endpoints of the link must be configured to operate in point-to-point mode.
Default broadcast
Format ip ospf network {broadcast|point-to-point}
Mode Interface Config
no ip ospf network
Use this command to return the OSPF network type to the default.
Format no ip ospf network
Mode Interface Config
ip ospf priority
This command sets the OSPF priority for the specified router interface. The priority of the interface is a priority integer from 0 to 255. A value of 0 indicates that the router is not eligible to become the designated router on this network.
Default 1, which is the highest router priority
Format ip ospf priority <0-255>
Mode Interface Config
no ip ospf priority
This command sets the default OSPF priority for the specified router interface.
Format no ip ospf priority
Mode Interface Config
ip ospf retransmit-interval
This command sets the OSPF retransmit Interval for the specified interface. The retransmit interval is specified in seconds. The value for
Default 5
Format ip ospf retransmit-interval <0-3600>
Mode Interface Config
no ip ospf retransmit-interval
This command sets the default OSPF retransmit Interval for the specified interface.
Format no ip ospf retransmit-interval
Mode Interface Config
ip ospf transmit-delay
This command sets the OSPF Transit Delay for the specified interface. The transmit delay is specified in seconds. In addition, it sets the estimated number of seconds it takes to transmit a link state update packet over this interface. Valid values for
Default 1
Format ip ospf transmit-delay <1-3600>
Mode Interface Config
no ip ospf transmit-delay
This command sets the default OSPF Transit Delay for the specified interface.
Format no ip ospf transmit-delay
Mode Interface Config
ip ospf mtu-ignore
This command disables OSPF maximum transmission unit (MTU) mismatch detection. OSPF Database Description packets specify the size of the largest IP packet that can be sent without fragmentation on the interface. When a router receives a Database Description packet, it examines the MTU advertised by the neighbor. By default, if the MTU is larger than the router can accept, the Database Description packet is rejected and the OSPF adjacency is not established.
Default enabled
Format ip ospf mtu-ignore
Mode Interface Config
no ip ospf mtu-ignore
This command enables the OSPF MTU mismatch detection.
Format no ip ospf mtu-ignore
Mode Interface Config
router-id (OSPF)
This command sets a 4-digit dotted-decimal number uniquely identifying the router ospf id. The
Format router-id
Mode Router OSPF Config
redistribute (OSPF)
This command configures OSPF protocol to allow redistribution of routes from the specified source protocol/routers.
Default • metric—unspecified
• type—2
• tag—0
Format redistribute {rip | static | connected} [metric <0-16777214>] [metric-type {1 | 2}] [tag <0-4294967295>] [subnets]
Mode Router OSPF Config
no redistribute
This command configures OSPF protocol to prohibit redistribution of routes from the specified source protocol/routers.
Format no redistribute {rip | static | connected} [metric] [metric-type]
[tag] [subnets]
Mode Router OSPF Config
maximum-paths (OSPF)
This command sets the number of paths that OSPF can report for a given destination where maxpaths is platform dependent.
Default 4
Format maximum-paths
Mode Router OSPF Config
no maximum-paths
This command resets the number of paths that OSPF can report for a given destination back to its default value.
Format no maximum-paths
Mode Router OSPF Config
passive-interface default (OSPF)
Use this command to enable global passive mode by default for all interfaces. It overrides any interface level passive mode. OSPF will not form adjacencies over a passive interface.
Default disabled
Format passive-interface default
Mode Router OSPF Config
no passive-interface default
Use this command to disable the global passive mode by default for all interfaces. Any interface previously configured to be passive reverts to non-passive mode.
Format no passive-interface default
Mode Router OSPF Config
passive-interface (OSPF)
Use this command to set the interface or tunnel as passive. It overrides the global passive mode that is currently effective on the interface or tunnel.
Default disabled
Format passive-interface {
Mode Router OSPF Config
no passive-interface
Use this command to set the interface or tunnel as non-passive. It overrides the global passive mode that is currently effective on the interface or tunnel.
Format no passive-interface {
Mode Router OSPF Config
timers spf
Use this command to configure the SPF delay time and hold time. The valid range for both parameters is 0-65535 seconds.
Default · delay-time—5
- hold-time—10
Format timers spf
Mode Router OSPF Config
trapflags (OSPF)
Use this command to enable individual OSPF traps, enable a group of trap flags at a time, or enable all the trap flags at a time. The different groups of trapflags, and each group's specific trapflags to enable or disable, are listed in
Table 1: Trapflags Groups
| Group Flags | |
| errors • authentication | • bad-packet• config-error• virt-authentication-failure• virt-bad-packet• virt-config-error |
| if-rx ir-rx-packet | |
| Isa • Isa-maxage | • Isa-originate |
| overflow • lsdb-overflow | • lsdb-approaching-overflow |
| retransmit • packets | • virt-packets |
| rtb • rtb-entry-info | |
| state-change • if-state-change | • neighbor-state-change• virtif-state-change• virtneighbor-state-change |
- To enable the individual flag, enter the group name followed by that particular flag.
- To enable all the flags in that group, give the group name followed by all.
- To enable all the flags, give the command as trapflags all.
Default disabled
Format trapflags {
all |
errors {all | authentication-failure | bad-packet | config-error |
virt-
authentication-failure | virt-bad-packet | virt-config-error} |
if-rx {all | if-rx-packet} |
lsa {all | lsa-maxage | lsa-originate} |
overflow {all | lsdb-overflow | lsdb-approaching-overflow} |
retransmit {all | packets | virt-packets} |
rtb {all, rtb-entry-info} |
state-change {all | if-state-change | neighbor-state-change | virtif-state-change |
virtneighbor-state-change}
}
Mode Router OSPF Config
no trapflags
Use this command to revert to the default reference bandwidth.
- To disable the individual flag, enter the group name followed by that particular flag.
- To disable all the flags in that group, give the group name followed by all.
- To disable all the flags, give the command as trapflags all.
Format no trapflags {
all |
errors {all | authentication-failure | bad-packet | config-error |
virt-
authentication-failure | virt-bad-packet | virt-config-error} |
if-rx {all | if-rx-packet} |
lsa {all | lsa-maxage | lsa-originate} |
overflow {all | lsdb-overflow | lsdb-approaching-overflow} |
retransmit {all | packets | virt-packets} |
rtb {all, rtb-entry-info} |
state-change {all | if-state-change | neighbor-state-change | virtif-state-change |
virtneighbor-state-change}
}
Mode Router OSPF Config
show ip ospf
This command displays information relevant to the OSPF router.
Format show ip ospf
Mode Privileged EXEC
| Note: Some of the information below displays only if you enable OSPF and configure certain features. |
| Term Definition | |
| Router ID | A 32-bit integer in dotted decimal format identifying the router, about which information is displayed. This is a configured value. |
| OSPF Admin Mode | Shows whether the administrative mode of OSPF in the router is enabled or disabled. This is a configured value. |
| ASBR Mode | Indicates whether the ASBR mode is enabled or disabled. Enable implies that the router is an autonomous system border router. Router automatically becomes an ASBR when it is configured to redistribute routes learnt from other protocol. The possible values for the ASBR status is enabled (if the router is configured to re-distribute routes learned by other protocols) or disabled (if the router is not configured for the same). |
| RFC 1583 Compatibility | Indicates whether 1583 compatibility is enabled or disabled. This is a configured value. |
| External LSDB Limit | The maximum number of non-default AS-external-LSA (link state advertisement) entries that can be stored in the link-state database. |
| Exit Overflow Interval | The number of seconds that, after entering overflow state, a router will attempt to leave overflow state. |
| Spf Delay Time | The number of seconds between two subsequent changes of LSAs, during which time the routing table calculation is delayed. |
| Spf Hold Time The | number of seconds between two consecutive spf calculations. |
| Opaque Capability | Shows whether the router is capable of sending Opaque LSAs. This is a configured value. |
| Autocost Ref BW | Shows the value of auto-cost reference bandwidth configured on the router. |
| ABR Status Shows | whether the router is an OSPF Area Border Router. |
| ASBR Status | Reflects whether the ASBR mode is enabled or disabled. Enable implies that the router is an autonomous system border router. The router automatically becomes an ASBR when it is configured to redistribute routes learnt from other protocols. The possible values for the ASBR status is enabled (if the router is configured to redistribute routes learned by other protocols) or disabled (if the router is not configured for the same). |
| Stub Router | When OSPF runs out of resources to store the entire link state database, or any other state information, OSPF goes into stub router mode. As a stub router, OSPF re-originates its own router LSAs, setting the cost of all non-stub interfaces to infinity. To restore OSPF to normal operation, disable and re-enable OSPF. |
| Exit Overflow Interval | The number of seconds that, after entering overflow state, a router will attempt to leave overflow state. |
| External LSDB Overflow | When the number of non-default external LSAs exceeds the configured limit, External LSDB Limit, OSPF goes into LSDB overflow state. In this state, OSPF withdraws all of its self-originated non-default external LSAs. After the Exit Overflow Interval, OSPF leaves the overflow state, if the number of external LSAs has been reduced. |
| External LSA Count | The number of external (LS type 5) link-state advertisements in the link-state database. |
| External LSA Checksum | The sum of the LS checksums of external link-state advertisements contained in the link-state database. |
| AS_OPAQUE LSA Count | Shows the number of AS Opaque LSAs in the link-state database. |
| AS_OPAQUE LSA Checksum | Shows the sum of the LS Checksums of AS Opaque LSAs contained in the link-state database. |
| New LSAs Originated | The number of new link-state advertisements that have been originated. |
| LSAs Received | The number of link-state advertisements received determined to be new instantiations. |
| LSA Count The total number of link state advertisements currently in the link state database. | |
| Maximum Number of LSAs | The maximum number of LSAs that OSPF can store. |
| LSA High Water Mark | The maximum size of the link state database since the system started. |
| Retransmit List Entries | The total number of LSAs waiting to be acknowledged by all neighbors. An LSA may be pending acknowledgment from more than one neighbor. |
| Maximum Number of Retransmit Entries | The maximum number of LSAs that can be waiting for acknowledgment at any given time. |
| Retransmit Entries High Water Mark | The highest number of LSAs that have been waiting for acknowledgment. |
| External LSDB Limit | The maximum number of non-default AS-external-LSAs entries that can be stored in the link-state database. |
| Default Metric Default value for redistributed routes. | |
| Default Passive Setting | Shows whether the interfaces are passive by default. |
| Default Route Advertise | Indicates whether the default routes received from other source protocols are advertised or not. |
| Always Shows whether default routes are always advertised. | |
| Metric | The metric of the routes being redistributed. If the metric is not configured, this field is blank. |
| Metric Type Shows | whether the routes are External Type 1 or External Type 2. |
| Number of Active Areas | The number of active OSPF areas. An “active” OSPF area is an area with at least one interface up. |
| AutoCost Ref BW | Shows the value of auto-cost reference bandwidth configured on the router. |
| Maximum Paths | The maximum number of paths that OSPF can report for a given destination. |
| Redistributing | This field is a heading and appears only if you configure the system to take routes learned from a non-OSPF source and advertise them to its peers. |
| Source The source | protocol/routes that are being redistributed. Possible values are static, connected, or RIP. |
| Tag The decimal value attached to each external route. | |
| Subnets | For redistributing routes into OSPF, the scope of redistribution for the specified protocol. |
| Distribute-List The access list used to filter redistributed routes. | |
The following shows example CLI display output for the command.
(Switch) #show ip ospf
Router ID....2.2.2.2
OSPF Admin Mode....Disable
RFC 1583 Compatibility....Enable
External LSDB Limit....No Limit
Exit Overflow Interval....0
Spf Delay Time....5
Spf Hold Time....10
Opaque Capability....Disable
AutoCost Ref BW....100 Mbps
Default Passive Setting......Disabled
Maximum Paths....4
Default Metric....Not configured
Default Route Advertise....Disabled
Always....FALSE
Metric....Not configured
Metric Type....External Type 2
Number of Active Areas.... 3 (3 normal, 0 stub, 0 nssa)
ABR Status....Disable
LSAs Originated....0
LSAs Received....0
LSA Count....0
Maximum Number of LSAs....18200
LSA High Water Mark....0
Retransmit List Entries.... 9078
Maximum Number of Retransmit Entries.... 72800
Retransmit Entries High Water Mark.... 72849
show ip ospf abr
This command displays the internal OSPF routing table entries to Area Border Routers (ABR). This command takes no options.
| Term Definition | |
| Type The type of the route to the destination. It can be either:• intra — Intra-area route• inter — Inter-area route | |
| Router ID Router ID of the destination. | |
| Cost Cost of using this route. | |
| Area ID The area ID of the area from which this route is learned. | |
| Next Hop Next hop toward the destination. | |
| Next Hop Intl The outgoing router interface to use when forwarding traffic to the next hop. | |
show ip ospf area
This command displays information about the area. The
Format show ip ospf area
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| ArealD The area id of the requested OSPF area. | |
| External Routing | A number representing the external routing capabilities for this area. |
| Spf Runs | The number of times that the intra-area route table has been calculated using this area's link-state database. |
| Area Border Router Count | The total number of area border routers reachable within this area. |
| Area LSA Count | Total number of link-state advertisements in this area's link-state database, excluding AS External LSA's. |
| Area LSA Checksum | A number representing the Area LSA Checksum for the specified ArealD excluding the external (LS type 5) link-state advertisements. |
| Import Summary LSAs | Shows whether to import summary LSAs. |
| OSPF Stub Metric Value | The metric value of the stub area. This field displays only if the area is a configured as a stub area. |
The following OSPF NSSA specific information displays only if the area is configured as an NSSA:
| Term Definition | |
| Import Summary LSAs | Shows whether to import summary LSAs into the NSSA. |
| Redistribute into NSSA | Shows whether to redistribute information into the NSSA. |
| Default Information Originate | Shows whether to advertise a default route into the NSSA. |
| Default Metric The metric value for the default route advertised into the NSSA. | |
| Default Metric Type | The metric type for the default route advertised into the NSSA. |
| Translator Role The NSSA translator role of the ABR, which is always or candidate. | |
| Translator Stability Interval | The amount of time that an elected translator continues to perform its duties after it determines that its translator status has been deposed by another router. |
| Translator State Shows whether the ABR translator state is disabled, always, or elected. | |
show ip ospf asbr
This command displays the internal OSPF routing table entries to Autonomous System Boundary Routers (ASBR). This command takes no options.
Format show ip ospf asbr
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Type The type of the route to the destination. It can be one of the following values: intra — Intra-area route inter — Inter-area route | |
| Router ID Router ID of the destination. | |
| Cost Cost of using this route. | |
| Area ID The area ID of the area from which this route is learned. | |
| Next Hop Next hop toward the destination. | |
| Next Hop Intf The outgoing router interface to use when forwarding traffic to the next hop. | |
show ip ospf database
This command displays information about the link state database when OSPF is enabled. If you do not enter any parameters, the command displays the LSA headers for all areas. Use the optional
| Parameter Description | |
| asbr-summary | Use asbr-summary to show the autonomous system boundary router (ASBR) summary LSAs. |
| external Use external to display the external LSAs. | |
| network Use network to display the network LSAs. | |
| nssa-external Use nssa-external to display NSSA external LSAs. | |
| opaque-area Use opaque-area to display area opaque LSAs. | |
| opaque-as Use opaque-as to display AS opaque LSAs. | |
| opaque-link Use opaque-link to display link opaque LSAs. | |
| router Use router to display router LSAs. | |
| summary | Use summary to show the LSA database summary information. |
| adv-router | Use adv-router to show the LSAs that are restricted by the advertising router. |
| self-originate | Use self-originate to display the LSAs in that are self originated. The information below is only displayed if OSPF is enabled |
The information below is only displayed if OSPF is enabled.
Format show ip ospf [<areaid>] database [{database-summary | [{asbr-summary | external | network | nssa-external | opaque-area | opaque-as | opaque-link | router | summary}] [{adv-router [<ipaddr>] | self-originate}]}
Mode • Privileged EXEC
• User EXEC
For each link-type and area, the following information is displayed:
| Term Definition | |
| Adv Router The A | advertising Router. Is a 32 bit dotted decimal number representing the LSDB interface. |
| Age A number representing the age of the link state advertisement in seconds. | |
| Sequence A number that represents which LSA is more recent. | |
| Checksum The total number LSA checksum. | |
| Options This is an integer. It indicates that the LSA receives special handling during routing calculations. | |
| Rtr Opt Router Options are valid for router links only. | |
show ip ospf database database-summary
Use this command to display the number of each type of LSA in the database for each area and for the router. The command also displays the total number of LSAs in the database.
Format show ip ospf database database-summary
Modes • Privileged EXEC
• User EXEC
| Term Definition | |
| Router Total number of router LSAs in the OSPF link state database. | |
| Network Total number of network LSAs in the OSPF link state database. | |
| Summary Net Total number of summary network LSAs in the database. | |
| Summary ASBR Number of summary ASBR LSAs in the database. | |
| Type-7 Ext Total number of Type-7 external LSAs in the database. | |
| Self-Originated Type-7 | Total number of self originated AS external LSAs in the OSPFv3 link state database. |
| Opaque Link Number of opaque link LSAs in the database. | |
| Opaque Area Number of opaque area LSAs in the database. | |
| Subtotal Number of entries for the identified area. | |
| Opaque AS Number of opaque AS LSAs in the database. | |
| Total Number of entries for all areas. | |
show ip ospf interface
This command displays the information for the IFO object or virtual interface tables.
Format show ip ospf interface {
Mode • Privileged EXEC • User EXEC
| Term Definition | |
| IP Address The IP | address for the specified interface. |
| Subnet Mask A m | ask of the network and host portion of the IP address for the OSPF interface. |
| Secondary IP Address(es) | The secondary IP addresses if any are configured on the interface. |
| OSPF Admin Mode | States whether OSPF is enabled or disabled on a router interface. |
| OSPF Area ID The | OSPF Area ID for the specified interface. |
| OSPF Network Type | The type of network on this interface that the OSPF is running on. |
| Router Priority A | number representing the OSPF Priority for the specified interface. |
| Retransmit Interval | A number representing the OSPF Retransmit Interval for the specified interface. |
| Hello Interval A | number representing the OSPF Hello Interval for the specified interface. |
| Dead Interval A | number representing the OSPF Dead Interval for the specified interface. |
| LSA Ack Interval | A number representing the OSPF LSA Acknowledgment Interval for the specified interface. |
| Transit Delay Interval | A number representing the OSPF Transit Delay for the specified interface. |
| Authentication Type | The OSPF Authentication Type for the specified interface are: none, simple, and encrypt. |
| Metric Cost The cost of the OSPF interface. | |
| Passive Status Shows whether the interface is passive or not. | |
| OSPF MTU-ignore | Indicates whether to ignore MTU mismatches in database descriptor packets sent from neighboring routers. |
The information below will only be displayed if OSPF is enabled.
| Term Definition | |
| OSPF Interface Type | Broadcast LANs, such as Ethernet and IEEE 802.5, take the value broadcast. The OSPF Interface Type will be 'broadcast'. |
| State The OSPF | Interface States are: down, loopback, waiting, point-to-point, designated router, and backup designated router. |
| Designated Router | The router ID representing the designated router. |
| Backup Designated Router | The router ID representing the backup designated router. |
| Number of Link Events | The number of link events. |
| Local Link LSAs | The number of Link Local Opaque LSAs in the link-state database. |
| Local Link LSA Checksum | The sum of LS Checksums of Link Local Opaque LSAs in the link-state database. |
show ip ospf interface brief
This command displays brief information for the IFO object or virtual interface tables.
Format show ip ospf interface brief
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| OSPF Admin Mode | States whether OSPF is enabled or disabled on a router interface. |
| OSPF Area ID The OSPF Area Id for the specified interface. | |
| Router Priority A | number representing the OSPF Priority for the specified interface. |
| Hello Interval A number representing the OSPF Hello Interval for the specified interface. | |
| Dead Interval A number representing the OSPF Dead Interval for the specified interface. | |
| Retransmit Interval | A number representing the OSPF Retransmit Interval for the specified interface. |
| Retransmit Delay Interval | A number representing the OSPF Transit Delay for the specified interface. |
| LSA Ack Interval | A number representing the OSPF LSA Acknowledgment Interval for the specified interface. |
show ip ospf interface stats
This command displays the statistics for a specific interface. The information below will only be displayed if OSPF is enabled.
Format show ip ospf interface stats
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| OSPF Area ID The area id of this OSPF interface. | |
| Area Border Router Count | The total number of area border routers reachable within this area. This is initially zero, and is calculated in each SPF pass. |
| AS Border Router Count | The total number of Autonomous System border routers reachable within this area. |
| Area LSA Count | The total number of link-state advertisements in this area's link-state database, excluding AS External LSAs. |
| IP Address The IP address associated with this OSPF interface. | |
| OSPF Interface Events | The number of times the specified OSPF interface has changed its state, or an error has occurred. |
| Virtual Events The number of state changes or errors that occurred on this virtual link. | |
| Neighbor Events | The number of times this neighbor relationship has changed state, or an error has occurred. |
| External LSA Count | The number of external (LS type 5) link-state advertisements in the link-state database. |
| Sent Packets The number of OSPF packets transmitted on the interface. | |
| Received Packets | The number of valid OSPF packets received on the interface. |
| Discards | The number of received OSPF packets discarded because of an error in the packet or an error in processing the packet. |
| Bad Version | The number of received OSPF packets whose version field in the OSPF header does not match the version of the OSPF process handling the packet. |
| Source Not On Local Subnet | The number of received packets discarded because the source IP address is not within a subnet configured on a local interface.Note: This field only applies to OSPFv2. |
| Virtual Link Not Found | The number of received OSPF packets discarded where the ingress interface is in a non-backbone area and the OSPF header identifies the packet as belonging to the backbone, but OSPF does not have a virtual link to the packet's sender. |
| Area Mismatch | The number of OSPF packets discarded because the area ID in the OSPF header is not the area ID configured on the ingress interface. |
| Invalid Destination Address | The number of OSPF packets discarded because the packet's destination IP address is not the address of the ingress interface and is not the AIDrRouters or AllSpfRouters multicast addresses. |
| Wrong Authentication Type | The number of packets discarded because the authentication type specified in the OSPF header does not match the authentication type configured on the ingress interface.Note: This field only applies to OSPFv2. |
| Authentication Failure | The number of OSPF packets dropped because the sender is not an existing neighbor or the sender's IP address does not match the previously recorded IP address for that neighbor.Note: This field only applies to OSPFv2. |
| No Neighbor at Source Address | The number of OSPF packets dropped because the sender is not an existing neighbor or the sender's IP address does not match the previously recorded IP address for that neighbor.Note: Does not apply to Hellos. |
| Invalid OSPF Packet Type | The number of OSPF packets discarded because the packet type field in the OSPF header is not a known type. |
| Hellos Ignored | The number of received Hello packets that were ignored by this router from the new neighbors after the limit has been reached for the number of neighbors on an interface or on the system as a whole. |
The command lists the number of OSPF packets of each type sent and received on the interface.
| Packet Type Sent Received | ||
| Hello 6960 6960 | ||
| Database Description 3 3 | ||
| LS Request 1 1 | ||
| LS Update 141 42 | ||
| LS Acknowledgment 40 135 |
show ip ospf neighbor
This command displays information about OSPF neighbors. If you do not specify a neighbor IP address, the output displays summary information in a table. If you specify an interface or tunnel, only the information for that interface or tunnel displays. The
Format show ip ospf neighbor [interface
Modes • Privileged EXEC
- User EXEC
If you do not specify an IP address, a table with the following columns displays for all neighbors or the neighbor associated with the interface that you specify:
| Term Definition | |
| Router ID The 4-digit dotted-decimal number of the neighbor router. | |
| Priority | The OSPF priority for the specified interface. The priority of an interface is a priority integer from 0 to 255. A value of '0' indicates that the router is not eligible to become the designated router on this network. |
| IP Address The IP address of the neighbor. | |
| Neighbor Interface | The interface of the local router in unit/slot/port format. |
| State The state of | the neighboring routers. Possible values are:Down - initial state of the neighbor conversation - no recent information has been received from the neighbor.Attempt - no recent information has been received from the neighbor but a more concerted effort should be made to contact the neighbor.Init - an Hello packet has recently been seen from the neighbor, but bidirectional communication has not yet been established.2 way - communication between the two routers is bidirectional.Exchange start - the first step in creating an adjacency between the two neighboring routers, the goal is to decide which router is the master and to decide upon the initial DD sequence number.Exchange - the router is describing its entire link state database by sending Database Description packets to the neighbor.Loading - Link State Request packets are sent to the neighbor asking for the more recent LSAs that have been discovered (but not yet received) in the Exchange state.Full - the neighboring routers are fully adjacent and they will now appear in router-LSAs and network-LSAs. |
| Dead Time The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable. | |
If you specify an IP address for the neighbor router, the following fields display:
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Neighbor IP Address | The IP address of the neighbor router. |
| Interface Index The interface ID of the neighbor router. | |
| Area ID The area ID of the OSPF area associated with the interface. | |
| Options | An integer value that indicates the optional OSPF capabilities supported by the neighbor. The neighbor's optional OSPF capabilities are also listed in its Hello packets. This enables received Hello Packets to be rejected (i.e., neighbor relationships will not even start to form) if there is a mismatch in certain crucial OSPF capabilities. |
| Router Priority | The OSPF priority for the specified interface. The priority of an interface is a priority integer from 0 to 255. A value of '0' indicates that the router is not eligible to become the designated router on this network. |
| Dead Timer Due | The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable. |
| Up Time Neighbor | uptime; how long since the adjacency last reached the Full state. |
| State The state of the neighboring routers. | |
| Events The number of times this neighbor relationship has changed state, or an error has occurred. | |
| Retransmission Queue Length | An integer representing the current length of the retransmission queue of the specified neighbor router Id of the specified interface. |
The following shows example CLI display output for the command.
(Switch) #show ip ospf neighbor 170.1.1.50
Interface....0/17
Neighbor IP Address....170.1.1.50
Interface Index....17
Area Id....0.0.0.2
Options....0x2
Router Priority....1
Dead timer due in (secs)....15
Up Time....0 days 2 hrs 8 mins 46 secs
State....Full/BACKUP-DR
Events....4
Retransmission Queue Length....0
show ip ospf range
This command displays information about the area ranges for the specified
Format show ip ospf range
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID The area | id of the requested OSPF area. |
| IP Address An IP | address which represents this area range. |
| Subnet Mask A valid subnet mask for this area range. | |
| Lsdb Type The type of link advertisement associated with this area range. | |
| Advertisement | The status of the advertisement. Advertisement has two possible settings: enabled or disabled. |
show ip ospf statistics
This command displays information about recent Shortest Path First (SPF) calculations. The SPF is the OSPF routing table calculation. The output lists the number of times the SPF has run for each OSPF area. A table follows this information. For each of the 15 most recent SPF runs, the table lists how long ago the SPF ran, how long the SPF took, and the reasons why the SPF was scheduled.
Format show ip ospf statistics
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Delta T | How long ago the SPF ran. The time is in the format hh:mm:ss, giving the hours, minutes, and seconds since the SPF run. |
| SPF Duration How long the SPF took in milliseconds. | |
| Reason The reason | the SPF was scheduled. Reason codes are as follows:R - a router LSA has changedN - a network LSA has changedSN - a type 3 network summary LSA has changedSA - a type 4 ASBR summary LSA has changedX - a type 5 or type 7 external LSA has changed |
show ip ospf stub table
This command displays the OSPF stub table. The information below will only be displayed if OSPF is initialized on the switch.
Format show ip ospf stub table
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Area ID A 32-bit id | identifier for the created stub area. |
| Type of Service | The type of service associated with the stub metric. Switch CLI only supports Normal TOS. |
| Metric Val | The metric value is applied based on the TOS. It defaults to the least metric of the type of service among the interfaces to other areas. The OSPF cost for a route is a function of the metric value. |
| Import Summary LSA | Controls the import of summary LSAs into stub areas. |
show ip ospf virtual-link
This command displays the OSPF Virtual Interface information for a specific area and neighbor. The
Format show ip ospf virtual-link
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Area ID The area id of the requested OSPF area. | |
| Neighbor Router ID | The input neighbor Router ID. |
| Hello Interval The | configured hello interval for the OSPF virtual interface. |
| Dead Interval The | configured dead interval for the OSPF virtual interface. |
| Iftransit Delay Interval | The configured transit delay for the OSPF virtual interface. |
| Retransmit Interval | The configured retransmit interval for the OSPF virtual interface. |
| Authentication Type | The configured authentication type of the OSPF virtual interface. |
| State The OSPF Interface States are: down, loopback, waiting, point-to-point, designated router, and backup designated router. This is the state of the OSPF interface. | |
| Neighbor State The neighbor state. | |
show ip ospf virtual-link brief
This command displays the OSPF Virtual Interface information for all areas in the system.
Format show ip ospf virtual-link brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID The area id of the requested OSPF area. | |
| Neighbor The neighbor interface of the OSPF virtual interface. | |
| Hello Interval The configured hello interval for the OSPF virtual interface. | |
| Dead Interval The configured dead interval for the OSPF virtual interface. | |
| Retransmit Interval | The configured retransmit interval for the OSPF virtual interface. |
| Transit Delay The configured transit delay for the OSPF virtual interface. | |
Routing Information Protocol (RIP) Commands
This section describes the commands you use to view and configure RIP, which is a distance-vector routing protocol that you use to route traffic within a small network.
router rip
Use this command to enter Router RIP mode.
Format router rip
Mode Global Config
enable (RIP)
This command resets the default administrative mode of RIP in the router (active).
Default enabled
Format enable
Mode Router RIP Config
no enable (RIP)
This command sets the administrative mode of RIP in the router to inactive.
Format no enable
Mode Router RIP Config
ip rip
This command enables RIP on a router interface.
Default disabled
Format ip rip
Mode Interface Config
no ip rip
This command disables RIP on a router interface.
Format no ip rip
Mode Interface Config
auto-summary
This command enables the RIP auto-summarization mode.
Default disabled
Format auto-summary
Mode Router RIP Config
no auto-summary
This command disables the RIP auto-summarization mode.
Format no auto-summary
Mode Router RIP Config
default-information originate (RIP)
This command is used to control the advertisement of default routes.
Format default-information originate
Mode Router RIP Config
no default-information originate (RIP)
This command is used to control the advertisement of default routes.
Format no default-information originate
Mode Router RIP Config
default-metric (RIP)
This command is used to set a default for the metric of distributed routes.
Format default-metric <0-15>
Mode Router RIP Config
no default-metric (RIP)
This command is used to reset the default metric of distributed routes to its default value.
Format no default-metric
Mode Router RIP Config
distance rip
This command sets the route preference value of RIP in the router. Lower route preference values are preferred when determining the best route. A route with a preference of 255 cannot be used to forward traffic.
Default 15
Format distance rip <1-255>
Mode Router RIP Config
no distance rip
This command sets the default route preference value of RIP in the router.
Format no distance rip
Mode Router RIP Config
distribute-list out (RIP)
This command is used to specify the access list to filter routes received from the source protocol.
Default 0
Format distribute-list <1-199> out {ospf | static | connected}
Mode Router RIP Config
no distribute-list out
This command is used to specify the access list to filter routes received from the source protocol.
Format no distribute-list <1-199> out {ospf | static | connected}
Mode Router RIP Config
ip rip authentication
This command sets the RIP Version 2 Authentication Type and Key for the specified interface. The value of
Default none
Format ip rip authentication {none | {simple
Mode Interface Config
no ip rip authentication
This command sets the default RIP Version 2 Authentication Type for an interface.
Format no ip rip authentication
Mode Interface Config
ip rip receive version
This command configures the interface to allow RIP control packets of the specified version(s) to be received.
The value for
Default both
Format ip rip receive version {rip1 | rip2 | both | none}
Mode Interface Config
no ip rip receive version
This command configures the interface to allow RIP control packets of the default version(s) to be received.
Format no ip rip receive version
Mode Interface Config
ip rip send version
This command configures the interface to allow RIP control packets of the specified version to be sent. The value for
Default ripi2
Format ip rip send version {rip1 | riplc | rip2 | none}
Mode Interface Config
no ip rip send version
This command configures the interface to allow RIP control packets of the default version to be sent.
Format no ip rip send version
Mode Interface Config
hostroutesaccept
This command enables the RIP hostroutesaccept mode.
Default enabled
Format hostroutesaccept
Mode Router RIP Config
no hostroutesaccept
This command disables the RIP hostroutesaccept mode.
Format no hostroutesaccept
Mode Router RIP Config
split-horizon
This command sets the RIP split horizon mode. Split horizon is a technique for avoiding problems caused by including routes in updates sent to the router from which the route was originally learned. The options are: None - no special processing for this case. Simple - a route will not be included in updates sent to the router from which it was learned. Poisoned reverse - a route will be included in updates sent to the router from which it was learned, but the metric will be set to infinity.
Default simple
Format split-horizon {none | simple | poison}
Mode Router RIP Config
no split-horizon
This command sets the default RIP split horizon mode.
Format no split-horizon
Mode Router RIP Config
redistribute (RIP)
This command configures RIP protocol to redistribute routes from the specified source protocol/routers. There are five possible match options. When you submit the command redistribute ospf match
Default • metric—not-configured
- match—internal
Format for redistribute ospf [metric <0-15>] [match [internal] [external 1]]
OSPF as [external 2] [nssa-external 1] [nssa-external-2]]
source
protocol
Format for redistribute {static | connected} [metric <0-15>]
other source
protocol
Mode Router RIP Config
no redistribute
This command de-configures RIP protocol to redistribute routes from the specified source protocol/routers.
Format no redistribute {ospf | static | connected} [metric] [match [internal]
[external 1] [external 2] [nssa-external 1] [nssa-external-2]]
Mode Router RIP Config
show ip rip
This command displays information relevant to the RIP router.
Format show ip rip
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| RIP Admin Mode | Enable or disable. |
| Split Horizon Mode | None, simple or poison reverse. |
| Auto Summary Mode | Enable or disable. If enabled, groups of adjacent routes are summarized into single entries, in order to reduce the total number of entries The default is enable. |
| Host Routes Accept Mode | Enable or disable. If enabled the router accepts host routes. The default is enable. |
| Global Route Changes | The number of route changes made to the IP Route Database by RIP. This does not include the refresh of a route's age. |
| Global queries The | the number of responses sent to RIP queries from other systems. |
| Default Metric | The default metric of redistributed routes if one has already been set, or blank if not configured earlier. The valid values are 1 to 15. |
| Default Route Advertise | The default route. |
show ip rip interface brief
This command displays general information for each RIP interface. For this command to display successful results routing must be enabled per interface (i.e., ip rip).
Format show ip rip interface brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IP source address used by the specified RIP interface. | |
| Send Version | The RIP version(s) used when sending updates on the specified interface. The types are none, RIP-1, RIP-1c, RIP-2 |
| Receive Version | The RIP version(s) allowed when receiving updates from the specified interface. The types are none, RIP-1, RIP-2, Both |
| RIP Mode The administrative mode of router RIP operation (enabled or disabled). | |
| Link State The mode of the interface (up or down). | |
show ip rip interface
This command displays information related to a particular RIP interface.
Format show ip rip interface {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface | Valid unit, slot, and port number separated by forward slashes. This is a configured value. |
| IP Address | The IP source address used by the specified RIP interface. This is a configured value. |
| Send Version | The RIP version(s) used when sending updates on the specified interface. The types are none, RIP-1, RIP-1c, RIP-2. This is a configured value. |
| Receive Version | The RIP version(s) allowed when receiving updates from the specified interface. The types are none, RIP-1, RIP-2, Both. This is a configured value. |
| RIP Admin Mode | RIP administrative mode of router RIP operation; enable activates, disable de-activates it. This is a configured value. |
| Link State Indicates whether the RIP interface is up or down. This is a configured value. | |
| Authentication Type | The RIP Authentication Type for the specified interface. The types are none, simple, and encrypt. This is a configured value. |
| Default Metric | A number which represents the metric used for default routes in RIP updates originated on the specified interface. This is a configured value. |
The following information will be invalid if the link state is down.
| Term Definition | |
| Bad Packets Received | The number of RIP response packets received by the RIP process which were subsequently discarded for any reason. |
| Bad Routes Received | The number of routes contained in valid RIP packets that were ignored for any reason. |
| Updates Sent The | number of triggered RIP updates actually sent on this interface. |
ICMP Throttling Commands
This section describes the commands you use to configure options for the transmission of various types of ICMP messages.
ip unreachables
Use this command to enable the generation of ICMP Destination Unreachable messages. By default, the generation of ICMP Destination Unreachable messages is enabled.
Default enable
Format ip unreachable
Mode Interface Config
no ip unreachables
Use this command to prevent the generation of ICMP Destination Unreachable messages.
Format no ip unreachables
Mode Interface Config
ip redirects
Use this command to enable the generation of ICMP Redirect messages by the router. By default, the generation of ICMP Redirect messages is enabled.
Default enable
Format ip redirects
Mode • Global Config
- Interface Config
no ip redirects
Use this command to prevent the generation of ICMP Redirect messages by the router.
Format no ip redirects
Mode • Global Config
- Interface Config
ip icmp echo-reply
Use this command to enable the generation of ICMP Echo Reply messages by the router. By default, the generation of ICMP Echo Reply messages is enabled.
Default enable
Format ip icmp echo-reply
Mode Global Config
no ip icmp echo-reply
Use this command to prevent the generation of ICMP Echo Reply messages by the router.
Format no ip icmp echo-reply
Mode Global Config
ip icmp error-interval
Use this command to limit the rate at which IPv4 ICMP error messages are sent. The rate limit is configured as a token bucket, with two configurable parameters, burst-size and burst-interval.
The burst-interval specifies how often the token bucket is initialized with burst-size tokens. burst-interval is from 0 to 2147483647 milliseconds (msec).
The burst-size is the number of ICMP error messages that can be sent during one burst-interval. The range is from 1 to 200 messages.
To disable ICMP rate limiting, set burst-interval to zero (0).
Default • burst-interval of 1000 msec.
- burst-size of 100 messages
Format ip icmp error-interval
Mode Global Config
no ip icmp error-interval
Use the no form of the command to return burst-interval and burst-size to their default values.
Format no ip icmp error-interval
Mode Global Config
Chapter 5
IP Multicast Commands
This chapter describes the IP Multicast commands available in the managed switch CLI.
The IP Multicast Commands chapter contains the following sections:
- “Multicast Commands” on page 5-1
• “DVMRP Commands” on page 5-7 - “PIM-DM Commands” on page 5-12
• “PIM-SM Commands” on page 5-16 - “Internet Group Message Protocol (IGMP) Commands” on page 5-26
- “IGMP Proxy Commands” on page 5-35

Warning: The commands in this chapter are in one of two functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
Multicast Commands
This section describes the commands you use to configure IP Multicast and to view IP Multicast settings and statistics.
ip mcast boundary
This command adds an administrative scope multicast boundary specified by
Format ip mcast boundary
Mode Interface Config
no ip mcast boundary
This command deletes an administrative scope multicast boundary specified by
Format no ip mcast boundary
Mode Interface Config
ip multicast
This command sets the administrative mode of the IP multicast forwarder in the router to active.
Default disabled
Format ip multicast
Mode Global Config
no ip multicast
This command sets the administrative mode of the IP multicast forwarder in the router to inactive.
Format no ip multicast
Mode Global Config
ip multicast ttl-threshold
This command is specific to IPv4. Use this command to apply the given Time-to-Live threshold value
Default 1
Format ip multicast ttl-threshold
Mode Interface Config
no ip multicast ttl-threshold
This command applies the default
Format no ip multicast ttl-threshold
Mode Interface Config
show ip mcast
This command displays the system-wide multicast information.
Format show ip mcast
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Admin Mode The | administrative status of multicast. Possible values are enabled or disabled. |
| Protocol State | The current state of the multicast protocol. Possible values are Operational or Non-Operational. |
| Table Max Size The | the maximum number of entries allowed in the multicast table. |
| Protocol The multicast | protocol running on the router. Possible values are PIMDM, PIMSM, or DVMRP. |
| Multicast Forwarding Cache Entry Count | The number of entries in the multicast forwarding cache. |
show ip mcast boundary
This command displays all the configured administrative scoped multicast boundaries.
Format show ip mcast boundary {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Group Ip The group IP address. | |
| Mask The group IP mask. | |
show ip mcast interface
This command displays the multicast information for the specified interface.
Format show ip mcast interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| TTL The time-to-live value for this interface. | |
show ip mcast mroute
This command displays a summary or all the details of the multicast table.
Format show ip mcast mroute {detail | summary}
Modes • Privileged EXEC
- User EXEC
If you use the detail parameter, the command displays the following fields:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Expiry Time The time of expiry of this entry in seconds. | |
| Up Time The time elapsed since the entry was created in seconds. | |
| RPF Neighbor The IP address of the RPF neighbor. | |
| Flags The flags associated with this entry. | |
If you use the summary parameter, the command displays the following fields:
| Term Definition | |
| Source IP The IP | address of the multicast data source. |
| Group IP The IP | address of the destination of the multicast packet. |
| Protocol The multicast routing protocol by which the entry was created. | |
| Incoming Interface | The interface on which the packet for the source/group arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which the packet is forwarded. |
show ip mcast mroute group
This command displays the multicast configuration settings such as flags, timer settings, incoming and outgoing interfaces, RPF neighboring routers, and expiration times of all the entries in the multicast mroute table containing the given
Format show ip mcast mroute group
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Protocol The multicast routing protocol by which this entry was created. | |
| Incoming Interface | The interface on which the packet for this group arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which this packet is forwarded. |
show ip mcast mroute source
This command displays the multicast configuration settings such as flags, timer settings, incoming and outgoing interfaces, RPF neighboring routers, and expiration times of all the entries in the multicast mroute table containing the given source IP address or source IP address and group IP address pair.
Format show ip mcast mroute source
Modes • Privileged EXEC
- User EXEC
If you use the detail parameter, the command displays the following column headings in the output table:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Expiry Time The time of expiry of this entry in seconds. | |
| Up Time The time elapsed since the entry was created in seconds. | |
| RPF Neighbor The IP address of the RPF neighbor. | |
| Flags The flags associated with this entry. | |
If you use the summary parameter, the command displays the following column headings in the output table:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Protocol The multicast routing protocol by which this entry was created. | |
| Incoming Interface | The interface on which the packet for this source arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which this packet is forwarded. |
DVMRP Commands
This section provides a detailed explanation of the Distance Vector Multicast Routing Protocol (DVMRP) commands.
ip dvmrp(Global Config)
This command sets administrative mode of DVMRP in the router to active.
Default disabled
Format ip dvmrp
Mode Global Config
no ip dvmrp(Global Config)
This command sets administrative mode of DVMRP in the router to inactive.
Format no ip dvmrp
Mode Global Config
ip dvmrp metric
This command configures the metric for an interface. This value is used in the DVMRP messages as the cost to reach this network. This field has a range of 1 to 31.
Default 1
Format ip dvmrp metric
Mode Interface Config
no ip dvmrp metric
This command resets the metric for an interface to the default value. This value is used in the DVMRP messages as the cost to reach this network.
Format no ip dvmrp metric Mode Interface Config
ip dvmrp trapflags
This command enables the DVMRP trap mode.
Default disabled
Format ip dvmrp trapflags
Mode Global Config
no ip dvmrp trapflags
This command disables the DVMRP trap mode.
Format no ip dvmrp trapflags
Mode Global Config
ip dvmrp
This command sets the administrative mode of DVMRP on an interface to active.
Default disabled
Format ip dvmrp
Mode Interface Config
no ip dvmrp
This command sets the administrative mode of DVMRP on an interface to inactive.
Format no ip dvmrp
Mode Interface Config
show ip dvmrp
This command displays the system-wide information for DVMRP.
Format show ip dvmrp
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Admin Mode Indicates whether DVMRP is enabled or disabled. | |
| Version The version of DVMRP being used. | |
| Total Number of Routes | The number of routes in the DVMRP routing table. |
| Reachable Routes | The number of entries in the routing table with non-infinite metrics. |
The following fields are displayed for each interface.
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode The mode of this interface. Possible values are Enabled and Disabled. | |
| Operational-status | The current state of DVMRP on this interface. Possible values are Operational or Non-Operational. |
show ip dvmrp interface
This command displays the interface information for DVMRP on the specified interface.
Format show ip dvmrp interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Mode Indicates whether DVMRP is enabled or disabled on the specified interface. | |
| Metric The metric of this interface. This is a configured value. | |
| Local Address The IP address of the interface. | |
The following field is displayed only when DVMRP is operational on the interface.
| Term Definition | |
| Generation ID | The Generation ID value for the interface. This is used by the neighboring routers to detect that the DVMRP table should be resent. |
The following fields are displayed only if DVMRP is enabled on this interface.
| Term Definition | |
| Received Bad Packets | The number of invalid packets received. |
| Received Bad Routes | The number of invalid routes received. |
| Sent Routes The | number of routes that have been sent on this interface. |
show ip dvmrp neighbor
This command displays the neighbor information for DVMRP.
Format show ip dvmrp neighbor
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| IfIndex The value of the interface used to reach the neighbor. | |
| Nbr IP Addr The IP address of the DVMRP neighbor for which this entry contains information. | |
| State The state of the neighboring router. The possible value for this field are ACTIVE or DOWN. | |
| Up Time The time since this neighboring router was learned. | |
| Expiry Time The time remaining for the neighbor to age out. This field is not applicable if the State is DOWN. | |
| Generation ID The Generation ID value for the neighbor. | |
| Major Version The major version of DVMRP protocol of neighbor. | |
| Minor Version The minor version of DVMRP protocol of neighbor. | |
| Capabilities The capabilities of neighbor. | |
| Received Routes The number of routes received from the neighbor. | |
| Rcvd Bad Pkts The number of invalid packets received from this neighbor. | |
| Rcvd Bad Routes | The number of correct packets received with invalid routes. |
show ip dvmrp nexthop
This command displays the next hop information on outgoing interfaces for routing multicast datagrams.
Format show ip dvmrp nexthop
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Source IP The sources for which this entry specifies a next hop on an outgoing interface. | |
| Source Mask | The IP Mask for the sources for which this entry specifies a next hop on an outgoing interface. |
| Next Hop Interface | The interface in unit/slot/port format for the outgoing interface for this next hop. |
| Type The network | is a LEAF or a BRANCH. |
show ip dvmrp prune
This command displays the table listing the router's upstream prune information.
Format show ip dvmrp prune
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Group IP The multicast Address that is pruned. | |
| Source IP The IP address of the source that has pruned. | |
| Source Mask | The network Mask for the prune source. It should be all 1s or both the prune source and prune mask must match. |
| Expiry Time (secs) | The expiry time in seconds. This is the time remaining for this prune to age out. |
show ip dvmrp route
This command displays the multicast routing information for DVMRP.
Format show ip dvmrp route
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Source Address | The multicast address of the source group. |
| Source Mask The | IP Mask for the source group. |
| Upstream Neighbor | The IP address of the neighbor which is the source for the packets for a specified multicast address. |
| Interface The interface used to receive the packets sent by the sources. | |
| Metric The distance in hops to the source subnet. This field has a different meaning than the Interface Metric field. | |
| Expiry Time (secs) | The expiry time in seconds, which is the time left for this route to age out. |
| Up Time (secs) The time when a specified route was learnt, in seconds. | |
PIM-DM Commands
This section describes the commands you use to configure Protocol Independent Multicast -Dense Mode (PIM-DM). PIM-DM is a multicast routing protocol that provides scalable inter-domain multicast routing across the Internet, independent of the mechanisms provided by any particular unicast routing protocol.
ip pimdm (Global Config)
This command enables the administrative mode of PIM-DM in the router.
Default disabled
Format ip pimdm
Mode Global Config
no ip pimdm (Global Config)
This command disables the administrative mode of PIM-DM in the router.
Format no ip pimdm
Mode Global Config
ip pimdm (Interface Config)
This command sets administrative mode of PIM-DM on an interface to enabled.
Default disabled
Format ip pimdm
Mode Interface Config
no ip pimdm (Interface Config)
This command sets administrative mode of PIM-DM on an interface to disabled.
Format no ip pimdm
Mode Interface Config
ip pimdm hello-interval
This command configures the transmission frequency of hello messages between PIM enabled neighbors. This field has a range of 10 to 3600 seconds.
Default 30
Format ip pimdm hello-interval
Mode Interface Config
no ip pimdm hello-interval
This command resets the transmission frequency of hello messages between PIM enabled neighbors to the default value.
Format no ip pimdm hello-interval
Mode Interface Config
show ip pimdm
This command displays the system-wide information for PIM-DM.
Format show ip pimdm
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Admin Mode Indicates whether PIM-DM is enabled or disabled. | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode Indicates whether PIM-DM is enabled or disabled on this interface. | |
| Operational-status | The current state of PIM-DM on this interface. Possible values are Operational or Non-Operational. |
show ip pimdm interface
This command displays the interface information for PIM-DM on the specified interface.
Format show ip pimdm interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Mode Indicates whether PIM-DM is enabled or disabled on the specified interface. | |
| Hello Interval | The frequency at which PIM hello messages are transmitted on this interface. By default, the value is 30 seconds. |
show ip pimdm interface stats
This command displays the statistical information for PIM-DM on the specified interface.
Format show ip pimdm interface stats {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IP address that represents the PIM-DM interface. | |
| Nbr Count The neighbor count for the PIM-DM interface. | |
| Hello Interval | The time interval between two hello messages sent from the router on the given interface. |
| Designated Router | The IP address of the Designated Router for this interface. |
show ip pimdm neighbor
This command displays the neighbor information for PIM-DM on the specified interface.
Format show ip pimdm neighbor {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Neighbor Address | The IP address of the neighbor on an interface. |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Up Time The time | since this neighbor has become active on this interface. |
| Expiry Time The expiry time of the neighbor on this interface. | |
PIM-SM Commands
This section describes the commands you use to configure Protocol Independent Multicast - Sparse Mode (PIM-SM). PIM-SM is a multicast routing protocol that provides scalable inter-domain multicast routing across the Internet, independent of the mechanisms provided by any particular unicast routing protocol.
ip pimsm(Global Config)
This command is used to administratively enable PIM-SM multicast routing mode on the router.
Default disabled
Format ip pimsm
Mode Global Config
no ip pimsm(Global Config)
This command is used to administratively disable PIM-SM multicast routing mode on the router.
Format no ip pimsm
Mode Global Config
ip pimsm(Interface Config)
This command is used to administratively enable PIM-SM multicast routing mode on a particular router interface.
Default disabled
Format ip pimsm
Mode Interface Config
no ip pimsm(Interface Config)
This command is used to administratively disable PIM-SM multicast routing mode on a particular router interface.
Format no ip pimsm
Mode Interface Config
ip pimsm bsr-border
Use this command to prevent bootstrap router (BSR) messages from being sent or received through an interface.
Default disabled
Format ip pimsm bsr-border
Mode Interface Config
no ip pimsm bsr-border
Use this command to disable the interface from being the BSR border.
Format no ip pimsm bsr-border
Mode Interface Config
ip pimsm bsr-candidate
This command is used to configure the router to announce its candidacy as a bootstrap router (BSR).
Default None
Format ip pimsm bsr-candidate interface
Mode Global Config
| Parameters Description | |
| hash-mask-length | Length of a mask (32 bits maximum) that is to be ANDed with the group address before the hash function is called. All groups with the same seed hash correspond to the same RP. For example, if this value was 24, only the first 24 bits of the group addresses matter. This allows you to get one RP for multiple groups. |
| priority | Priority of the candidate BSR. The range is an integer from 0 to 255. The BSR with the larger priority is preferred. If the priority values are the same, the router with the larger IP address is the BSR. The default value is 0. |
no ip pimsm bsr-candidate
This command is used to disable the router to announce its candidacy as a bootstrap router (BSR).
Format no ip pimsm bsr-candidate interface
Mode Global Config
ip pimsm dr-priority
Use this command to set the priority value for which a router is elected as the designated router (DR).
Default 1
Format ip pimsm dr-priority <0-2147483647>
Mode Interface Config
no ip pimsm dr-priority
Use this command to disable the interface from being the BSR border.
Format no ip pimsm dr-priority
Mode Interface Config
ip pimsm hello-interval
This command is used to configure the PIM-SM hello interval for the specified interface. The hello interval is specified in seconds.
Default 30
Format ip pimsm hello-interval <0-18000>
Mode Interface Config
no ip pimsm hello-interval
This command is used to set the hello interval to the default value.
Format no ip pimsm hello-interval
Mode Interface Config
ip pimsm join-prune-interval
This command is used to configure the interface join/prune interval for the PIM-SM router. The join/prune interval is specified in seconds. This parameter can be configured to a value from 0 to 18000.
Default 60
Format ip pimsm join-prune-interval <0-18000>
Mode Interface Config
no ip pimsm join-prune-interval
Use this command to set the join/prune interval to the default value.
Format no ip pimsm join-prune-interval
Mode Interface Config
ip pimsm register-threshold
This command configures the Register Threshold rate for the Rendezvous Point router to switch to a source-specific shortest path. The valid values are from (0 to 2000 kilobits/sec).
Default 0
Format ip pimsm register-threshold <0-2000>
Mode Global Config
no ip pimsm register-threshold
This command resets the register threshold rate for the Rendezvous Pointer router to the default value.
Format no ip pimsm register-threshold
Mode Global Config
ip pimsm rp-address
This command is used to statically configure the RP address for one or more multicast groups. The parameter
Default none
Format ip pimsm rp-address
Mode Global Config
no ip pimsm rp-address
This command is used to statically remove the RP address for one or more multicast groups.
Format no ip pimsm rp-address
Mode Global Config
ip pimsm rp-candidate
This command is used to configure the router to advertise itself as a PIM candidate rendezvous point (RP) to the bootstrap router (BSR).
Default None
Format ip pimsm rp-candidate interface
Mode Global Config
no ip pimsm rp-candidate
This command is used to disable the router to advertise itself as a PIM candidate rendezvous point (RP) to the bootstrap router (BSR).
Format no ip pimsm rp-candidate interface
Mode Global Config
ip pimsm spt-threshold
This command is used to configure the Data Threshold rate for the last-hop router to switch to the shortest path. The rate is specified in Kilobits per second. The possible values are 0 to 2000.
Default 0
Format ip pimsm spt-threshold <0-2000>
Mode Global Config
no ip pimsm spt-threshold
This command is used to set the Data Threshold rate for the RP router to the default value.
Format no ip pimsm spt-threshold
Mode Global Config
ip pimsm ssm
Use this command to define the Source Specific Multicast (SSM) range of IP multicast addresses.
Default disabled
Format ip pimsm ssm {default |
Mode Global Config
| Parameter Description |
| default-range Defines the SSM range access list to 232/8. |
no ip pimsm ssm
This command is used to disable the Source Specific Multicast (SSM) range.
Format no ip pimsm ssm
Mode Global Config
ip pim-trapflags
This command enables the PIM trap mode for both Sparse Mode (SM) and Dense Mode. (DM).
Default disabled
Format ip pim-trapflags
Mode Global Config
no ip pim-trapflags
This command sets the PIM trap mode to the default.
Format no ip pim-trapflags
Mode Global Config
show ip pimsm
This command displays the system-wide information for PIM-SM.
Format show ip pimsm
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Admin Mode Indicates whether PIM-SM is enabled or disabled. | |
| Data Threshold Rate (Kbps) | The data threshold rate for the PIM-SM router. |
| Register Threshold Rate (Kbps) | The threshold rate for the RP router to switch to the shortest path. |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode Indicates whether PIM-SM is enabled or disabled on the interface. | |
| Operational-Status | The current state of the PIM-SM protocol on the interface. Possible values are Operational or Non-Operational. |
show ip pimsm bsr
This command displays the bootstrap router (BSR) information. The output includes elected BSR information and information about the locally configured candidate rendezvous point (RP) advertisement.
Format show ip pimsm bsr
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| BSR Address IP address of the BSR. | |
| Uptime Length of time that this router has been up (in hours, minutes, and seconds). | |
| BSR Priority | Priority as configured in the ip pimsm bsr-candidate command. |
| Hash Mask Length | Length of a mask (maximum 32 bits) that is to be ANDed with the group address before the hash function is called. This value is configured in the ip pimsm bsr-candidate command. |
| Next Bootstrap Message In | Time (in hours, minutes, and seconds) in which the next bootstrap message is due from this BSR. |
| Next Candidate RP advertisement in | Time (in hours, minutes, and seconds) in which the next candidate RP advertisement will be sent. |
show ip pimsm interface
This command displays interface configuration parameters for PIM-SM on the specified interface. If no interface is specified, all interfaces are displayed.
Format show ip pimsm interface [
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IP address of the specified interface. | |
| Subnet Mask The | Subnet Mask for the IP address of the PIM interface. |
| Hello Interval (secs) | The frequency at which PIM hello messages are transmitted on this interface. By default, the value is 30 seconds. |
| Join Prune Interval (secs) | The join/prune interval for the PIM-SM router. The interval is in seconds. |
| Neighbor Count The neighbor count for the PIM-SM interface. | |
| Designated Router | The IP address of the Designated Router for this interface. |
| DR Priority The priority of the Designated Router. | |
| BSR Border | The bootstrap router border interface. Possible values are enabled or disabled. |
Example: The following shows example CLI display output for the command.
(Switch) #show ip pimsm interface 1/0/3
Slot/Port.... 1/0/3
IP Address.... 41.1.1.2
Subnet Mask.... 255.255.255.0
Hello Interval (secs).... 30
Join Prune Interval (secs) 60
Neighbor Count 0
Designated Router.... 41.1.1.2
DR Priority.... 1
BSR Border.... Disabled
show ip pimsm neighbor
This command displays the neighbor information for PIM-SM on the specified interface.
Format show ip pimsm neighbor {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IP address of the neighbor on an interface. | |
| Up Time The time since this neighbor has become active on this interface. | |
| Expiry Time The expiry time of the neighbor on this interface. | |
show ip pimsm rphash
This command displays which rendezvous point (RP) is being used for a specified group.
Format show ip pimsm rhash
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| RP The IP address | of the RP for the group specified. |
| Origin Indicates the mechanism (BSR or static) by which the RP was selected. | |
show ip pimsm rp mapping
Use this command to display all group-to-RP mappings of which the router is a aware (either configured or learned from the bootstrap router (BSR)). If no RP is specified, all active RPs are displayed.
Format show ip pimsm rp mapping [rp address]
Modes • Privileged EXEC
- User EXEC
Internet Group Message Protocol (IGMP) Commands
This section describes the commands you use to view and configure IGMP settings.
ip igmp
This command sets the administrative mode of IGMP in the system to active.
Default disabled
Format ip igmp
Modes • Global Config
- Interface Config
no ip igmp
This command sets the administrative mode of IGMP in the system to inactive.
Format no ip igmp
Modes · Global Config
- Interface Config
ip igmp version
This command configures the version of IGMP for an interface. The value for
Default 3
Format ip igmp version
Modes Interface Config
no ip igmp version
This command resets the version of IGMP to the default value.
Format no ip igmp version
Modes Interface Config
ip igmp last-member-query-count
This command sets the number of Group-Specific Queries sent before the router assumes that there are no local members on the interface. The range for
Format ip igmp last-member-query-count
Modes Interface Config
no ip igmp last-member-query-count
This command resets the number of Group-Specific Queries to the default value.
Format no ip igmp last-member-query-count
Modes Interface Config
ip igmp last-member-query-interval
This command configures the Maximum Response Time inserted in Group-Specific Queries which are sent in response to Leave Group messages. The range for
Default 10 tenths of a second (1 second)
Format ip igmp last-member-query-interval
Modes Interface Config
no ip igmp last-member-query-interval
This command resets the Maximum Response Time to the default value.
Format no ip igmp last-member-query-interval
Modes Interface Config
ip igmp query-interval
This command configures the query interval for the specified interface. The query interval determines how fast IGMP Host-Query packets are transmitted on this interface. The range for
Default 125 seconds
Format ip igmp query-interval
Modes Interface Config
no ip igmp query-interval
This command resets the query interval for the specified interface to the default value. This is the frequency at which IGMP Host-Query packets are transmitted on this interface.
Format no ip igmp query-interval
Modes Interface Config
ip igmp query-max-response-time
This command configures the maximum response time interval for the specified interface, which is the maximum query response time advertised in IGMPv2 queries on this interface. The time interval is specified in tenths of a second. The range for
Default 100
Format ip igmp query-max-response-time
Mode Interface Config
no ip igmp query-max-response-time
This command resets the maximum response time interval for the specified interface, which is the maximum query response time advertised in IGMPv2 queries on this interface to the default value. The maximum response time interval is reset to the default time.
Format no ip igmp query-max-response-time
Mode Interface Config
ip igmp robustness
This command configures the robustness that allows tuning of the interface. The robustness is the tuning for the expected packet loss on a subnet. If a subnet is expected to have a lot of loss, the Robustness variable may be increased for the interface. The range for
Default 2
Format ip igmp robustness
Mode Interface Config
no ip igmp robustness
This command sets the robustness value to default.
Format no ip igmp robustness
Mode Interface Config
ip igmp startup-query-count
This command sets the number of Queries sent out on startup, separated by the Startup Query Interval on the interface. The range for
Default 2
Format ip igmp startup-query-count
Mode Interface Config
no ip igmp startup-query-count
This command resets the number of Queries sent out on startup, separated by the Startup Query Interval on the interface to the default value.
Format no ip igmp startup-query-count
Mode Interface Config
ip igmp startup-query-interval
This command sets the interval between General Queries sent on startup on the interface. The time interval value is in seconds. The range for
Default 31
Format ip igmp startup-query-interval
Mode Interface Config
no ip igmp startup-query-interval
This command resets the interval between General Queries sent on startup on the interface to the default value.
Format no ip igmp startup-query-interval
Mode Interface Config
show ip igmp
This command displays the system-wide IGMP information.
Format show ip igmp
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| IGMP Admin Mode | The administrative status of IGMP. This is a configured value. |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode | Indicates whether IGMP is enabled or disabled on the interface. This is a configured value. |
| Operational-Status | The current state of IGMP on this interface. Possible values are Operational or Non-Operational. |
show ip igmp groups
This command displays the registered multicast groups on the interface. If [detail] is specified this command displays the registered multicast groups on the interface in detail.
Format show ip igmp groups
Mode Privileged EXEC
If you do not use the detail keyword, the following fields appear:
| Term Definition | |
| IP Address The IP | address of the interface participating in the multicast group. |
| Subnet Mask The | subnet mask of the interface participating in the multicast group. |
| Interface Mode This | displays whether IGMP is enabled or disabled on this interface. |
The following fields are not displayed if the interface is not enabled:
| Term Definition | |
| Querier Status | This displays whether the interface has IGMP in Querier mode or Non-Querier mode. |
| Groups The list of multicast groups that are registered on this interface. | |
If you use the detail keyword, the following fields appear:
| Term Definition | |
| Multicast IP Address | The IP address of the registered multicast group on this interface. |
| Last Reporter | The IP address of the source of the last membership report received for the specified multicast group address on this interface. |
| Up Time | The time elapsed since the entry was created for the specified multicast group address on this interface. |
| Expiry Time The amount of time remaining to remove this entry before it is aged out. | |
| Version1 Host Timer | The time remaining until the local router assumes that there are no longer any IGMP version 1 multicast members on the IP subnet attached to this interface. This could be an integer value or “----” if there is no Version 1 host present. |
| Version2 Host Timer | The time remaining until the local router assumes that there are no longer any IGMP version 2 multicast members on the IP subnet attached to this interface. This could be an integer value or “----” if there is no Version 2 host present. |
| Group Compatibility Mode | The group compatibility mode (v1, v2 or v3) for this group on the specified interface. |
show ip igmp interface
This command displays the IGMP information for the interface.
Format show ip igmp interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IGMP Admin Mode | The administrative status of IGMP. |
| Interface Mode Indicates whether IGMP is enabled or disabled on the interface. | |
| IGMP Version | The version of IGMP running on the interface. This value can be configured to create a router capable of running either IGMP version 1 or 2. |
| Query Interval | The frequency at which IGMP Host-Query packets are transmitted on this interface. |
| Query Max Response Time | The maximum query response time advertised in IGMPv2 queries on this interface. |
| Robustness | The tuning for the expected packet loss on a subnet. If a subnet is expected to be have a lot of loss, the Robustness variable may be increased for that interface. |
| Startup Query Interval | The interval between General Queries sent by a Querier on startup. |
| Startup Query Count | The number of Queries sent out on startup, separated by the Startup Query Interval. |
| Last Member Query Interval | The Maximum Response Time inserted into Group-Specific Queries sent in response to Leave Group messages. |
| Last Member Query Count | The number of Group-Specific Queries sent before the router assumes that there are no local members. |
show ip igmp interface membership
This command displays the list of interfaces that have registered in the multicast group.
Format show ip igmp interface membership
Mode Privileged EXEC
| Term Definition | |
| Interface Valid unit, slot and port number separated by forward slashes. | |
| Interface IP The IP address of the interface participating in the multicast group. | |
| State The interface that has IGMP in Querier mode or Non-Querier mode. | |
| Group Compatibility Mode | The group compatibility mode (v1, v2 or v3) for the specified group on this interface. |
| Source Filter Mode | The source filter mode (Include/Exclude) for the specified group on this interface. This is “----” for IGMPv1 and IGMPv2 Membership Reports. |
If you use the detail keyword, the following fields appear:
| Term Definition | |
| Interface Valid unit, slot and port number separated by forward slashes. | |
| Group Compatibility Mode | The group compatibility mode (v1, v2 or v3) for the specified group on this interface. |
| Source Filter Mode | The source filter mode (Include/Exclude) for the specified group on this interface. This is “----” for IGMPv1 and IGMPv2 Membership Reports. |
| Source Hosts | The list of unicast source IP addresses in the group record of the IGMPv3 Membership Report with the specified multicast group IP address. This is “----” for IGMPv1 and IGMPv2 Membership Reports. |
| Expiry Time | The amount of time remaining to remove this entry before it is aged out. This is “----” for IGMPv1 and IGMPv2 Membership Reports. |
show ip igmp interface stats
This command displays the IGMP statistical information for the interface. The statistics are only displayed when the interface is enabled for IGMP.
Format show ip igmp interface stats
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Querier Status | The status of the IGMP router, whether it is running in Querier mode or Non-Querier mode. |
| Querier IP Address | The IP address of the IGMP Querier on the IP subnet to which this interface is attached. |
| Querier Up Time | The time since the interface Querier was last changed. |
| Querier Expiry Time | The amount of time remaining before the Other Querier Present Timer expires. If the local system is the querier, the value of this object is zero. |
| Wrong Version Queries | The number of queries received whose IGMP version does not match the IGMP version of the interface. |
| Number of Joins | The number of times a group membership has been added on this interface. |
| Number of Groups | The current number of membership entries for this interface. |
IGMP Proxy Commands
The IGMP Proxy is used by IGMP Router (IPv4 system) to enable the system to issue IGMP host messages on behalf of hosts that the system discovered through standard IGMP router interfaces. With IGMP Proxy enabled, the system acts as proxy to all the hosts residing on its router interfaces.
ip igmp-proxy
This command enables the IGMP Proxy on the router. To enable the IGMP Proxy on the router, you must enable multicast forwarding. Also, make sure that there are no multicast routing protocols enabled on the router.
Format ip igmp-proxy
Mode Interface Config
no ip igmp-proxy
This command disables the IGMP Proxy on the router.
Format no ip igmp-proxy
Mode Interface Config
ip igmp-proxy unsolicit-rprt-interval
This command sets the unsolicited report interval for the IGMP Proxy router. This command is valid only when you enable IGMP Proxy on the interface. The value of
Default 1
Format ip igmp-proxy unsolicit-rprt-interval
Mode Interface Config
no ip igmp-proxy unsolicit-rprt-interval
This command resets the unsolicited report interval of the IGMP Proxy router to the default value.
Format no ip igmp-proxy unsolicit-rprt-interval
Mode Interface Config
ip igmp-proxy reset-status
This command resets the host interface status parameters of the IGMP Proxy router. This command is valid only when you enable IGMP Proxy on the interface.
Format ip igmp-proxy reset-status
Mode Interface Config
show ip igmp-proxy
This command displays a summary of the host interface status parameters. It displays the following parameters only when you enable IGMP Proxy.
Format show ip igmp-proxy
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface index The interface number of the IGMP Proxy. | |
| Admin Mode States whether the IGMP Proxy is enabled or not. This is a configured value. | |
| Operational Mode | States whether the IGMP Proxy is operationally enabled or not. This is a status parameter. |
| Version The present IGMP host version that is operational on the proxy interface. | |
| Number of Multicast Groups | The number of multicast groups that are associated with the IGMP Proxy interface. |
| Unsolicited Report Interval | The time interval at which the IGMP Proxy interface sends unsolicited group membership report. |
| Querier IP Address on Proxy Interface | The IP address of the Querier, if any, in the network attached to the upstream interface (IGMP-Proxy interface). |
| Older Version 1 Querier Timeout | The interval used to timeout the older version 1 queriers. |
| Older Version 2 Querier Timeout | The interval used to timeout the older version 2 queriers. |
| Proxy Start Frequency | The number of times the IGMP Proxy has been stopped and started. |
Example: The following shows example CLI display output for the command.
(Switch) #show ip igmp-proxy
Interface Index.... 1/0/1 Admin Mode.... Enable Operational Mode.... Enable Version.... 3 Num of Multicast Groups.... 0 Unsolicited Report Interval.... 1 Querier IP Address on Proxy Interface.... 5.5.5.50 Older Version 1 Querier Timeout.... 0 Older Version 2 Querier Timeout.... 00::00:00 Proxy Start Frequency.... 1
show ip igmp-proxy interface
This command displays a detailed list of the host interface status parameters. It displays the following parameters only when you enable IGMP Proxy.
Format show ip igmp-proxy interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Index The unit/slot/port of the IGMP proxy. | |
The column headings of the table associated with the interface are as follows:
| Term Definition | |
| Ver The IGMP version. | |
| Query Rcvd Number of IGMP queries received. | |
| Term | Definition |
| Report Rcvd Number of IGMP reports received. | |
| Report Sent Number of IGMP reports sent. | |
| Leaves Rcvd Number of IGMP leaves received. Valid for version 2 only. | |
| Leaves Sent Number of IGMP leaves sent on the Proxy interface. Valid for version 2 only. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ip igmp-proxy interface
Interface Index.... 1/0/1
| Ver | Query | Rcvd | Report | Rcvd | Report | Sent | Leave | Rcvd | Leave | Sent | |
| 1 | 0 | 0 | 0 | ---- | ---- | ||||||
| 2 | 0 | 0 | 0 | 0 | |||||||
| 3 | 0 | 0 | 0 | ---- | ---- |
show ip igmp-proxy groups
This command displays information about the subscribed multicast groups that IGMP Proxy reported. It displays a table of entries with the following as the fields of each column.
Format show ip igmp-proxy groups
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The inter | face number of the IGMP Proxy. |
| Group Address T | The IP address of the multicast group. |
| Last Reporter | The IP address of host that last sent a membership report for the current group on the network attached to the IGMP Proxy interface (upstream interface). |
| Up Time (in secs) | The time elapsed since last created. |
| Member State | The status of the entry. Possible values are IDLE_MEMBER or DELAY_MEMBER.IDLE_MEMBER - interface has responded to the latest group membership query for this group.DELAY_MEMBER - interface is going to send a group membership report to respond to a group membership query for this group. |
| Filter Mode | Possible values are Include or Exclude. |
| Sources The number of sources attached to the multicast group. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ip igmp-proxy groups
Interface Index.... 1/0/1
| Group Address | Last Reporter | Up Time | Member State | Filter Mode | Sources | ||
| 225.4.4.4 | 5.5.5.48 | 00:02:21 | DELAY_MEMBER | Include | 3 | ||
| 226.4.4.4 | 5.5.5.48 | 00:02:21 | DELAY_MEMBER | Include | 3 | ||
| 227.4.4.4 | 5.5.5.48 | 00:02:21 | DELAY_MEMBER | Exclude | 0 | ||
| 228.4.4.4 | 5.5.5.48 | 00:02:21 | DELAY_MEMBER | Include | 3 | ||
show ip igmp-proxy groups detail
This command displays complete information about multicast groups that IGMP Proxy reported. It displays a table of entries with the following as the fields of each column.
Format show ip igmp-proxy groups detail
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface The interface number of the IGMP Proxy. | |
| Group Address The IP address of the multicast group. | |
| Last Reporter | The IP address of host that last sent a membership report for the current group, on the network attached to the IGMP-Proxy interface (upstream interface). |
| Up Time (in secs) | The time elapsed since last created. |
| Member State The status of the entry. Possible values are IDLE_MEMBER or DELAY_MEMBER.IDLE_MEMBER - interface has responded to the latest group membership query for this group.DELAY_MEMBER - interface is going to send a group membership report to respond to a group membership query for this group. | |
| Filter Mode | Possible values areIncludeorExclude. |
| Sources The number of sources attached to the multicast group. | |
| Group Source List | The list of IP addresses of the sources attached to the multicast group. |
| Expiry Time Time | left before a source is deleted. |
Example: The following shows example CLI display output for the command.
(Switch) #show ip igmp-proxy groups
Interface Index.... 1/0/1
Group Address Last Reporter Up Time Member State Filter Mode Sources
225.4.4.4 5.5.5.48 00:02:21 DELAY_MEMBER Include 3
Group Source List Expiry Time
| 5.1.2.3 | 00:02:21 |
| 6.1.2.3 | 00:02:21 |
| 7.1.2.3 | 00:02:21 |
226.4.4.4 5.5.5.48 00:02:21 DELAY_MEMBER Include 3
Group Source List Expiry Time
2.1.2.3 00:02:21
| 6.1.2.3 | 00:01:44 |
| 8.1.2.3 | 00:01:44 |
227.4.4.4 5.5.5.48 00:02:21 DELAY_MEMBER Exclude 0
228.4.4.4 5.5.5.48 00:03:21 DELAY_MEMBER Include 3
Group Source List Expiry Time
| 9.1.2.3 | 00:03:21 |
| 6.1.2.3 | 00:03:21 |
| 7.1.2.3 | 00:03:21 |
Chapter 6
IPv6 Multicast Commands
The IPv6 Multicast commands described in this chapter are standard on the GSM7328Sv2 and GSM7352Sv2, but are optional on the GSM7328Sv1 and GSM7352Sv1. In order to use these commands with the GS7328Sv1 or GSM7352Sv1 you must purchase a separate software license.

Note: The commands in this chapter require an optional software license for use on the GSM7328Sv1 and GSM7352Sv1.

Note: There is no specific IP multicast enable for IPv6. Enabling of multicast at global config is common for both IPv4 and IPv6.
This chapter contains the following sections:
- "IPv6 Multicast Forwarder" on page 6-2
- “IPv6 PIM-DM Commands” on page 6-4
- “IPv6 PIM-SM Commands” on page 6-8
- "IPv6 MLD Commands" on page 6-16
- “IPv6 MLD-Proxy Commands” on page 6-23

Note: The commands in this chapter are in one of three functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Clear commands clear some or all of the settings to factory defaults.
IPv6 Multicast Forwarder
show ipv6 mroute
| Note: There is no specific IP multicast enable for IPv6. Enabling of multicast at global config is common for both IPv4 and IPv6. |
Use this command to show the mroute entries specific for IPv6. (This command is the IPv6 equivalent of the IPv4 show ip mcaste mroute command.)
Format show ipv6 mroute {detail | summary}
Modes • Privileged EXEC
- User EXEC
If you use the detail parameter, the command displays the following Multicast Route Table fields:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Expiry Time The time of expiry of this entry in seconds. | |
| Up Time The time elapsed since the entry was created in seconds. | |
| RPF Neighbor The IP address of the RPF neighbor. | |
| Flags The flags associated with this entry. | |
If you use the summary parameter, the command displays the following fields:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Protocol The multicast routing protocol by which the entry was created. | |
| Incoming Interface | The interface on which the packet for the source/group arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which the packet is forwarded. |
show ipv6 mroute group
This command displays the multicast configuration settings specific to IPv6 such as flags, timer settings, incoming and outgoing interfaces, RPF neighboring routers, and expiration times of all the entries in the multicast mroute table containing the given group IPv6 address
Format show ipv6 mroute group
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Protocol The multicast routing protocol by which this entry was created. | |
| Incoming Interface | The interface on which the packet for this group arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which this packet is forwarded. |
show ipv6 mroute source
This command displays the multicast configuration settings specific to IPv6 such as flags, timer settings, incoming and outgoing interfaces, RPF neighboring routers, and expiration times of all the entries in the multicast mroute table containing the given source IP address or source IP address and group IP address pair.
Format show ipv6 mroute source
Modes • Privileged EXEC
- User EXEC
If you use the detail parameter, the command displays the following column headings in the output table:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Expiry Time The time of expiry of this entry in seconds. | |
| Up Time The time elapsed since the entry was created in seconds. | |
| RPF Neighbor The IP address of the RPF neighbor. | |
| Flags The flags associated with this entry. | |
If you use the summary parameter, the command displays the following column headings in the output table:
| Term Definition | |
| Source IP The IP address of the multicast data source. | |
| Group IP The IP address of the destination of the multicast packet. | |
| Protocol The multicast routing protocol by which this entry was created. | |
| Incoming Interface | The interface on which the packet for this source arrives. |
| Outgoing Interface List | The list of outgoing interfaces on which this packet is forwarded. |
IPv6 PIM-DM Commands
This section describes the Protocol Independent Multicast -Dense Mode (PIM-DM) commands to support the PIM version of IPv6.
ipv6 pimdm
Use this command to administratively enable PIM-DM Multicast Routing Mode either across the router (Global Config) or on a particular router (Interface Config).
no ipv6 pimdm
Default disabled
Format ipv6 pimdm
Mode • Global Config
- Interface Config
Use this command to administratively disable PIM-DM Multicast Routing Mode either across the router (Global Config) or on a particular router (Interface Config).
Format no ipv6 pimdm
Mode • Global Config
- Interface Config
ipv6 pimdm hello-interval
Use this command to configure the PIM-DM hello interval for the specified router interface. The hello-interval is specified in seconds and is in the range 10–3600.
Default 30
Format ipv6 pimdm hello-interval <10-3600>
Mode Interface Config
no ipv6 pimdm hello-interval
Use this command to set the PIM-DM hello interval to the default value.
Format no ipv6 pimdm hello-interval
Mode Interface Config
show ipv6 pimdm
Use this command to display PIM-DM Global Configuration parameters and PIM-DM interface status.
Format show ipv6 pimdm
Mode • Privileged EXEC • User EXEC
| Term Definition | |
| Admin Mode Indicates whether PIM-DM is enabled or disabled. | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode Indicates whether PIM-DM is enabled or disabled on this interface. | |
| Operational-Status | The current state of PIM-DM on this interface. Possible values are Operational or Non-Operational. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 pimdm
Admin Mode..... Enable
PIM-DM INTERFACE STATUS
| Interface | Interface Mode | Protocol State |
| 0/1 | Enable | Non-Operational |
| 0/2 | Enable | Non-Operational |
show ipv6 pimdm neighbor
Use this command to display the PIM-DM neighbor information for all interfaces or for the specified interface.
Format show ipv6 pimdm neighbor [
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Neighbor Address | The IP address of the neighbor on an interface. |
| Term | Definition |
| Up Time The time | since this neighbor has become active on this interface. |
| Expiry Time The expiry time of the neighbor on this interface. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 pimdm neighbor 0/1
Interface Neighbor Up Time Expiry Time Address (hh:mm:ss) (hh:mm:ss)
show ipv6 pimdm interface
Use this command to display PIM-DM configuration information for all interfaces or for the specified interface. If no interface is specified, configuration of all interfaces is displayed.
Example: The following shows example CLI display output for the command.
Format show ipv6 pimdm interface [
Modes • Privileged EXEC • User EXEC
| Term | Definition |
| Interface Mode | Indicates whether PIM-DM is enabled or disabled on the specified interface. |
| PIM-DM Interface Hello Interval | The frequency at which PIM hello messages are transmitted on this interface. By default, the value is 30 seconds. |
(Switch) #show ipv6 pimdm interface 0/1
Slot/Port.... 0/1
IP Address.... 1.1.1.1
Subnet Mask.... 255.255.255.0
Hello Interval (secs).... 30 secs
Neighbor count.... 3
Designated Router...... Not Supported
(Switch) #show ipv6 pimdm interface
| Address | Interface | Neighbor Hello | |
| Count | Interval | ||
| 192.168.37.6 | 0/1 | 2 | 30 |
| 192.168.36.129 | 0/2 | 2 | 30 |
10.1.37.2 0/24 1 30
IPv6 PIM-SM Commands
This section describes the PIM-SM commands you use to configure Protocol Independent Multicast - Sparse Mode (PIM-SM) in IPv6.
ipv6 pimsm bsr-border
Use this command to prevent bootstrap router (BSR) messages from being sent or received through an interface.
Default disabled
Format ipv6 pimsm bsr-border
Mode Interface Config
no ipv6 pimsm bsr-border
Use this command to disable the interface from being the BSR border.
Format no ipv6 pimsm bsr-border
Mode Interface Config
ipv6 pimsm bsr-candidate
This command is used to configure the router to announce its candidacy as a bootstrap router (BSR).
Default None
Format ipv6 pimsm bsr-candidate interface
Mode Global Config
| Parameters Description | |
| hash-mask-length | Length of a mask (32 bits maximum) that is to be ANDed with the group address before the hash function is called. All groups with the same seed hash correspond to the same RP. For example, if this value was 24, only the first 24 bits of the group addresses matter. This allows you to get one RP for multiple groups. |
| priority | Priority of the candidate BSR. The range is an integer from 0 to 255. The BSR with the larger priority is preferred. If the priority values are the same, the router with the larger IP address is the BSR. The default value is 0. |
no ipv6 pimsm bsr-candidate
This command is used to disable the router to announce its candidacy as a bootstrap router (BSR).
Format no ipv6 pimsm bsr-candidate interface
Mode Global Config
ipv6 pimsm dr-priority
Use this command to set the priority value for which a router is elected as the designated router (DR).
Default 1
Format ipv6 pimsm dr-priority <0-2147483647>
Mode Interface Config
no ipv6 pimsm dr-priority
Use this command to disable the interface from being the BSR border.
Format no ipv6 pimsm dr-priority
Mode Interface Config
ipv6 pimsm hello-interval
This command is used to configure the PIM-SM hello interval for the specified interface. The hello interval range is 0-18000 is specified in seconds.
Default 30
Format ipv6 pimsm hello-interval <0-18000>
Mode Interface Config
no ipv6 pimsm hello-interval
This command is used to set the hello interval to the default value.
Format no ipv6 pimsm hello-interval
Mode Interface Config
ipv6 pimsm join-prune-interval
This command is used to configure the interface join/prune interval for the PIM-SM router. The join/prune interval is specified in seconds. This parameter can be configured to a value from 0 to 18000.
Default 60
Format ipv6 pimsm join-prune-interval <0-18000>
Mode Interface Config
no ipv6 pimsm join-prune-interval
Use this command to set the join/prune interval to the default value.
Format no ipv6 pimsm join-prune-interval
Mode Interface Config
ipv6 pimsm register-threshold
This command configures the Register Threshold rate for the Rendezvous Point router to switch to a source-specific shortest path. The valid values are from (0 to 2000 kilobits/sec).
Default 0
Format ipv6 pimsm register-threshold <0-2000>
Mode Global Config
no ipv6 pimsm register-threshold
This command resets the register threshold rate for the Rendezvous Pointer router to the default value.
Format no ipv6 pimsm register-threshold
Mode Global Config
ipv6 pimsm rp-address
This command is used to statically configure the RP address for one or more multicast groups. The parameter
Default 0
Format ipv6 pimsm rp-address
Mode Global Config
no ipv6 pimsm rp-address
This command is used to statically remove the RP address for one or more multicast groups.
Format no ipv6 pimsm rp-address
Mode Global Config
ipv6 pimsm rp-candidate
This command is used to configure the router to advertise itself as a PIM candidate rendezvous point (RP) to the bootstrap router (BSR).
Default None
Format ipv6 pimsm rp-candidate interface
Mode Global Config
no ipv6 pimsm rp-candidate
This command is used to disable the router to advertise itself as a PIM candidate rendezvous point (RP) to the bootstrap router (BSR).
Format no ipv6 pimsm rp-candidate interface
Mode Global Config
ipv6 pimsm spt-threshold
This command is used to configure the Data Threshold rate for the last-hop router to switch to the shortest path. The rate is specified in Kilobits per second. The possible values are 0 to 2000.
Default 0
Format ipv6 pimsm spt-threshold <1-2000>
Mode Global Config
no ipv6 pimsm spt-threshold
This command is used to set the Data Threshold rate for the RP router to the default value.
Format no ipv6 pimsm spt-threshold
Mode Global Config
ipv6 pimsm ssm
Use this command to define the Source Specific Multicast (SSM) range of IP multicast addresses.
Default disabled
Format ipv6 pimsm ssm {default |
Mode Global Config
| Parameter Description |
| default Defines the SSM range access list to 232/8. |
no ipv6 pimsm ssm
This command is used to disable the Source Specific Multicast (SSM) range.
Format no ipv6 pimsm ssm
Mode Global Config
show ipv6 pimsm
This command displays the system-wide information for PIM-SM.
Format show ipv6 pimsm
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| PIM-SM Admin Mode | Indicates whether PIM-SM is enabled or disabled. |
| Data Threshold Rate (Kbps) | The data threshold rate for the PIM-SM router. |
| Register Threshold Rate (Kbps) | The threshold rate for the RP router to switch to the shortest path. |
| SSM Range Table | |
| Group Address/ Prefix Length | The Group IPv6 address and prefix length. |
| PIM-SM Interface Status | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Interface-Mode Indicates whether PIM-SM is enabled or disabled on the interface. | |
| Operational-Status | The current state of the PIM-SM protocol on the interface. Possible values are Operational or Non-Operational. |
show ipv6 pimsm bsr
This command displays the bootstrap router (BSR) information. The output includes elected BSR information and information about the locally configured candidate rendezvous point (RP) advertisement.
Format show ipv6 pimsm bsr
Mode • Privileged EXEC
- User EXEC
| Term Definition | |
| BSR Address IP address of the BSR. | |
| Uptime Length of time that this router has been up (in hours, minutes, and seconds). | |
| BSR Priority | Priority as configured in the ip pimsm bsr-candidate command. |
| Hash Mask Length | Length of a mask (maximum 32 bits) that is to be ANDed with the group address before the hash function is called. This value is configured in the ip pimsm bsr-candidate command. |
| Next Bootstrap Message In | Time (in hours, minutes, and seconds) in which the next bootstrap message is due from this BSR. |
| Next Candidate RP advertisement in | Time (in hours, minutes, and seconds) in which the next candidate RP advertisement will be sent. |
show ipv6 pimsm interface
This command displays interface configuration parameters for PIM-SM on the specified interface. If no interface is specified, all interfaces are displayed.
Format show ipv6 pimsm interface [
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IPv6 address of the specified interface. | |
| Hello Interval (secs) | The frequency at which PIM hello messages are transmitted on this interface. By default, the value is 30 seconds. |
| Join Prune Interval (secs) | The join/prune interval for the PIM-SM router. The interval is in seconds. |
| Neighbor Count The neighbor count for the PIM-SM interface. | |
| Designated Router | The IP address of the Designated Router for this interface. |
| DR Priority The priority of the Designated Router. | |
| BSR Border | The bootstrap router border interface. Possible values are enabled or disabled. |
show ipv6 pimsm neighbor
This command displays the neighbor information for PIM-SM on the specified interface.
Format show ipv6 pimsm neighbor {
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| IP Address The IPv6 address of the neighbor on an interface. | |
| Up Time The time since this neighbor has become active on this interface. | |
| Expiry Time The expiry time of the neighbor on this interface. | |
show ipv6 pimsm rphash
This command displays which rendezvous point (RP) is being used for a specified group.
Format show ipv6 pimsm rhash
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| RP The IP address | of the RP for the group specified. |
| Origin Indicates the mechanism (BSR or static) by which the RP was selected. | |
show ipv6 pimsm rp mapping
Use this command to display all group-to-RP mappings of which the router is a aware (either configured or learned from the bootstrap router (BSR)). If no RP is specified, all active RPs are displayed.
Format show ipv6 pimsm rp mapping [rp address]
Modes • Privileged EXEC • User EXEC
IPv6 MLD Commands
IGMP/MLD Snooping is Layer 2 functionality but IGMP/MLD are Layer 3 multicast protocols. It requires that in a network setup there should be a multicast router (which can act as a querier) to be present to solicit the multicast group registrations. However some network setup does not need a multicast router as multicast traffic is destined to hosts within the same network. In this situation, the 7000 series has an IGMP/MLD Snooping Querier running on one of the switches and Snooping enabled on all the switches. For more information, see “IGMP Snooping Configuration Commands” on page 3-139 and “MLD Snooping Commands” on page 3-153.
ipv6 mld router
Use this command, in the administrative mode of the router, to enable MLD in the router.
Default Disabled
Format ipv6 mld router
Mode Global Config
Interface Config
no ipv6 mld router
Use this command, in the administrative mode of the router, to disable MLD in the router.
Default Disabled
Format no ipv6 mld router
Mode Global Config
Interface Config
ipv6 mld query-interval
Use this command to set the MLD router's query interval for the interface. The query-interval is the amount of time between the general queries sent when the router is the querier on that interface. The range for
Default 125
Format ipv6 mld query-interval
Mode Interface Config
no ipv6 mld query-interval
Use this command to reset the MLD query interval to the default value for that interface.
Format no ipv6 mld query-interval
Mode Interface Config
ipv6 mld query-max-response-time
Use this command to set the MLD querier's maximum response time for the interface and this value is used in assigning the maximum response time in the query messages that are sent on that interface. The range for
Default 10000 milliseconds
Format ipv6 mld query-max-response-time
Mode Interface Config
no ipv6 mld query-max-response-time
This command resets the MLD query max response time for the interface to the default value.
Format no ipv6 mld query-max-response-time
Mode Interface Config
ipv6 mld last-member-query-interval
Use this command to set the last member query interval for the MLD interface, which is the value of the maximum response time parameter in the group specific queries sent out of this interface. The range for
Default 1000 milliseconds
Format ipv6 mld last-member-query-interval
Mode Interface Config
no ipv6 mld last-member-query-interval
Use this command to reset the
Format no ipv6 mld last-member-query-interval
Mode Interface Config
ipv6 mld last-member-query-count
Use this command to set the number of listener-specific queries sent before the router assumes that there are no local members on the interface. The range for
Default 2
Format ipv6 mld last-member-query-count
Mode Interface Config
no ipv6 mld last-member-query-count
Use this command to reset the
Format no ipv6 mld last-member-query-count
Mode Interface Config
show ipv6 mld groups
Use this command to display information about multicast groups that MLD reported. The information is displayed only when MLD is enabled on at least one interface. If MLD was not enabled on even one interface, there is no group information to be displayed.
Format show ipv6 mld groups {
Mode • Privileged EXEC • User EXEC
The following fields are displayed as a table when
| Field Description | |
| Group Address T | the address of the multicast group. |
| Interface Interface | through which the multicast group is reachable. |
| Up Time Time elapsed | in hours, minutes, and seconds since the multicast group has been known. |
| Expiry Time Time | left in hours, minutes, and seconds before the entry is removed from the MLD membership table. |
When
| Field Description | |
| Interface Interface | through which the multicast group is reachable. |
| Group Address T | the address of the multicast group. |
| Last Reporter | The IP Address of the source of the last membership report received for this multicast group address on that interface. |
| Filter Mode | The filter mode of the multicast group on this interface. The values it can take are include and exclude. |
| Version 1 Host Timer | The time remaining until the router assumes there are no longer any MLD version-1 Hosts on the specified interface. |
| Group Compat Mode | The compatibility mode of the multicast group on this interface. The values it can take are MLDv1 and MLDv2. |
The following table is displayed to indicate all the sources associated with this group.
| Field Description | |
| Source Address | The IP address of the source. |
| Uptime Time elapsed | in hours, minutes, and seconds since the source has been known. |
| Expiry Time Time | left in hours, minutes, and seconds before the entry is removed. |
Example: The following shows examples of CLI display output for the commands.
(Switch) #show ipv6 mld groups ?
(Switch) #show ipv6 mld groups 1/0/1
Group Address..... FF43::3
Interface.... 1/0/1
Up Time (hh:mm:ss) 00:03:04
Expiry Time (hh:mm:ss) ----
(Switch) #show ipv6 mld groups ff43::3
Interface.... 1/0/1
Group Address..... FF43::3
Last Reporter..... FE80::200:FF:FE00:3
Up Time (hh:mm:ss) 00:02:53
Expiry Time (hh:mm:ss)----
Filter Mode.... Include
Version1 Host Timer.... ----
Group compat mode.... v2
Source Address ExpiryTime
2003::10
00:04:17
2003::20
00:04:17
show ipv6 mld interface
Use this command to display MLD-related information for the interface.
Format show ipv6 mld interface [
Mode • Privileged EXEC
- User EXEC
The following information is displayed for each of the interfaces or for only the specified interface.
| Field Description | |
| Interface The interface number in unit/slot/port format. | |
| MLD Global Mode | Displays the configured administrative status of MLD. |
| MLD Operational Mode | The operational status of MLD on the interface. |
| MLD Version Indicates the version of MLD configured on the interface. | |
| Query Interval Indicates the configured query interval for the interface. | |
| Query Max Response Time | Indicates the configured maximum query response time (in seconds) advertised in MLD queries on this interface. |
| Robustness | Displays the configured value for the tuning for the expected packet loss on a subnet attached to the interface. |
| Startup Query interval | This valued indicates the configured interval between General Queries sent by a Querier on startup. |
| Startup Query Count | This value indicates the configured number of Queries sent out on startup, separated by the Startup Query Interval. |
| Last Member Query Interval | This value indicates the configured Maximum Response Time inserted into Group-Specific Queries sent in response to Leave Group messages. |
| Last Member Query Count | This value indicates the configured number of Group-Specific Queries sent before the router assumes that there are no local members. |
The following information is displayed if the operational mode of the MLD interface is enabled.
| Field Description | |
| Querier Status | This value indicates whether the interface is an MLD querier or non-querier on the subnet it is associated with. |
| Querier Address | The IP address of the MLD querier on the subnet the interface is associated with. |
| Querier Up Time | Time elapsed in seconds since the querier state has been updated. |
| Querier Expiry Time | Time left in seconds before the Querier loses its title as querier. |
| Wrong Version Queries | Indicates the number of queries received whose MLD version does not match the MLD version of the interface. |
| Number of Joins | The number of times a group membership has been added on this interface. |
| Number of Leaves | The number of times a group membership has been removed on this interface. |
| Number of Groups | The current number of membership entries for this interface. |
show ipv6 mld traffic
Use this command to display MLD statistical information for the router.
Format show ipv6 mld traffic
Mode • Privileged EXEC
- User EXEC
| Field Description | |
| Valid MLD Packets Received | The number of valid MLD packets received by the router. |
| Valid MLD Packets Sent The number of valid MLD packets sent by the router. | |
| Queries Received The number of valid MLD queries received by the router. | |
| Queries Sent The number of valid MLD queries sent by the router. | |
| Reports Received The number of valid MLD reports received by the router. | |
| Reports Sent The number of valid MLD reports sent by the router. | |
| Leaves Received The number of valid MLD leaves received by the router. | |
| Leaves Sent The number of valid MLD leaves sent by the router. | |
| Bad Checksum MLD Packets | The number of bad checksum MLD packets received by the router. |
| Malformed MLD Packets The number of malformed MLD packets received by the router. | |
IPv6 MLD-Proxy Commands
MLD-Proxy is the IPv6 equivalent of IGMP-Proxy. MLD-Proxy commands allow you to configure the network device as well as to view device settings and statistics using either serial interface or telnet session. The operation of MLD-Proxy commands is the same as for IGMP-Proxy: MLD is for IPv6 and IGMP is for IPv4.MGMD is a term used to refer to both IGMP and MLD.
ipv6 mld-proxy
Use this command to enable MLD-Proxy on the router. To enable MLD-Proxy on the router, you must enable multicast forwarding. Also, make sure that there are no other multicast routing protocols enabled in the router.
Format ipv6 mld-proxy
Mode Interface Config
no ipv6 mld-proxy
Use this command to disable MLD-Proxy on the router.
Format no ipv6 mld-proxy
Mode Interface Config
ipv6 mld-proxy unsolicit-rprt-interval
Use this command to set the unsolicited report interval for the MLD-Proxy router. This command is only valid when you enable MLD-Proxy on the interface. The value of
Default 1
Format ipv6 mld-proxy unsolicit-rprt-interval
Mode Interface Config
no ipv6 mld-proxy unsolicited-report-interval
Use this command to reset the MLD-Proxy router's unsolicited report interval to the default value.
Format no ipv6 mld-proxy unsolicit-rprt-interval
Mode Interface Config
ipv6 mld-proxy reset-status
Use this command to reset the host interface status parameters of the MLD-Proxy router. This command is only valid when you enable MLD-Proxy on the interface.
Format ipv6 mld-proxy reset-status
Mode Interface Config
show ipv6 mld-proxy
Use this command to display a summary of the host interface status parameters.
Format show ipv6 mld-proxy
Mode • Privileged EXEC
- User EXEC
The command displays the following parameters only when you enable MLD-Proxy.
| Field Description | |
| Interface Index The interface number of the MLD-Proxy. | |
| Admin Mode Indicates whether MLD-Proxy is enabled or disabled. This is a configured value. | |
| Operational Mode | Indicates whether MLD-Proxy is operationally enabled or disabled. This is a status parameter. |
| Version The present MLD host version that is operational on the proxy interface. | |
| Number of Multicast Groups The number of multicast groups that are associated with the MLD-Proxy interface. | |
| Unsolicited Report Interval The time interval at which the MLD-Proxy interface sends unsolicited group membership report. | |
| Querier IP Address on Proxy Interface | The IP address of the Querier, if any, in the network attached to the upstream interface (MLD-Proxy interface). |
| Older Version 1 Querier Timeout | The interval used to timeout the older version 1 queriers. |
| Proxy Start Frequency The number of times the MLD-Proxy has been stopped and started. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 mld-proxy
Interface Index.... 1/0/3
Admin Mode..... Enable
Operational Mode..... Enable
Version.... 3
Num of Multicast Groups.... 0
Unsolicited Report Interval.... 1
Querier IP Address on Proxy Interface..... fe80::1:2:5
Older Version 1 Querier Timeout.... 00:00:00
Proxy Start Frequency......
show ipv6 mld-proxy interface
This command displays a detailed list of the host interface status parameters. It displays the following parameters only when you enable MLD-Proxy.
Format show ipv6 mld-proxy interface
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Index The unit/slot/port of the MLD-proxy. | |
The column headings of the table associated with the interface are as follows:
| Term Definition | |
| Ver The MLD version. | |
| Query Rcvd Number of MLD queries received. | |
| Report Rcvd Number of MLD reports received. | |
| Report Sent Number of MLD reports sent. | |
| Leaves Rcvd Number of MLD leaves received. Valid for version 2 only. | |
| Leaves Sent Number of MLD leaves sent on the Proxy interface. Valid for version 2 only. | |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 mld-proxy interface
Interface Index.... 1/0/1
| Ver | Query | Rcvd | Report | Rcvd | Report | Sent | Leave | Rcvd | Leave | Sent | ||
| 1 | 2 | 0 | 0 | 0 | 2 | |||||||
| 2 | 3 | 0 | 4 | |||||||||
show ipv6 mld-proxy groups
Use this command to display information about multicast groups that the MLD-Proxy reported.
Format show ipv6 mld-proxy groups
Mode • Privileged EXEC
- User EXEC
| Field | Description |
| Interface | The interface number of the MLD-Proxy. |
| Group Address | The IP address of the multicast group. |
| Last Reporter The IP address of | the host that last sent a membership report for the current group, on the network attached to the MLD-Proxy interface (upstream interface). |
| Up Time (in secs) The time elapsed in seconds since last created. | |
| Member State Possible values are: | |
| Filter Mode | Possible values are Include or Exclude. |
| Sources | The number of sources attached to the multicast group. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 mld-proxy groups
Interface Index.... 1/0/3
| Group Address Sources | Last Reporter | Up Time | Member State | Filter Mode |
| --- | ||||
| FF1E::1 | FE80::100:2.3 | 00:01:40 | DELAY_MEMBER | Exclude 2 |
| FF1E::2 | FE80::100:2.3 | 00:02:40 | DELAY_MEMBER | Include 1 |
| FF1E::3 | FE80::100:2.3 | 00:01:40 | DELAY_MEMBER | Exclude 0 |
| FF1E::4 | FE80::100:2.3 | 00:02:44 | DELAY_MEMBER | Include 4 |
show ipv6 mld-proxy groups detail
Use this command to display information about multicast groups that MLD-Proxy reported.
Format show ipv6 mld-proxy groups detail
Mode • Privileged EXEC
- User EXEC
| Field Description | |
| Interface The interface number | of the MLD-Proxy. |
| Group Address The IP address | of the multicast group. |
| Last Reporter The IP address of | the host that last sent a membership report for the current group, on the network attached to the MLD-Proxy interface (upstream interface). |
| Up Time (in secs) The time elapsed in seconds since last created. | |
| Member State Possible values are:Idle_Member.The interface has responded to the latest group membership query for this group.Delay_Member.The interface is going to send a group membership report to respond to a group membership query for this group. | |
| Filter Mode Possible values are | Include or Exclude. |
| Sources The number of sources | attached to the multicast group. |
| Group Source List The list of IP | addresses of the sources attached to the multicast group. |
| Expiry Time | The time left for a source to get deleted. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 igmp-proxy groups
Interface Index.... 1/0/3
Group Address Last Reporter Up Time Member State Filter Mode Sources
FF1E::1 FE80::100:2.3 244 DELAY_MEMBER Exclude 2
Group Source List Expiry Time
2001::1 00:02:40
2001::2
FF1E::2 FE80::100:2.3 243 DELAY_MEMBER Include 1
Group Source List Expiry Time
3001::1 00:03:32
3002::2 00:03:32
| FF1E::3 | FE80::100:2.3 | 328 | DELAY_MEMBER | Exclude | 0 |
| FF1E::4 | FE80::100:2.3 | 255 | DELAY_MEMBER | Include | 4 |
| Group Source List | Expiry Time | ||||
| 4001::1 | 00:03:40 | ||||
| 5002::2 | 00:03:40 | ||||
| 4001::2 | 00:03:40 | ||||
| 5002::2 | 00:03:40 | ||||
Chapter 7
IPv6 Commands
The IPv6 commands described in this chapter are standard on the GSM7328Sv2 and GSM7352Sv2, but are optional on the GSM7328Sv1 and GSM7352Sv1. In order to use these commands with the GS7328Sv1 or GSM7352Sv1 you must purchase a separate software license.

Note: The commands in this chapter require an optional software license for use on the GSM7328Sv1 and GSM7352Sv1.

Note: The commands in this chapter are in one of three functional groups:
This chapter contains the following sections:
- “IPv6 Management Commands” on page 7-2
- “Tunnel Interface Commands” on page 7-6
- “Loopback Interface Commands” on page 7-8
- “IPv6 Routing Commands” on page 7-10
- “OSPFv3 Commands” on page 7-33
- “DHCPv6 Commands” on page 7-68

Note: The commands in this chapter are in one of three functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Clear commands clear some or all of the settings to factory defaults.
IPv6 Management Commands
IPv6 Management commands allow a device to be managed via an IPv6 address in a switch or IPv4 routing (i.e., independent from the IPv6 Routing package). For Routing/IPv6 builds of Switch CLI dual IPv4/IPv6 operation over the service port is enabled. Switch CLI has capabilities such as:
- Static assignment of IPv6 addresses and gateways for the network ports.
- The ability to ping an IPv6 link-local address over the network port.
- Using IPv6 Management commands, you can send SNMP traps and queries via the network port.
- The user can manage a device via the network port (in addition to a Routing Interface).
network ipv6 enable
Use this command to enable IPv6 operation on the network port.
Default enabled
Format network ipv6 enable
Mode Privileged EXEC
no network ipv6 enable
Use this command to disable IPv6 operation on the network port.
Format no network ipv6 enable
Mode Privileged EXEC
network ipv6 address
Use this command to configure IPv6 global addressing (i.e. default routers) information for the network port.
Format network ipv6 address
/Mode Privileged EXEC
| Parameter Description |
| address IPv6 prefix in IPv6 global address format. |
| prefix-length IPv6 prefix length value |
| eui64 Formulate IPv6 address in eui64 format |
no network ipv6 address
Use this command to remove IPv6 prefixes on the network port interface. The command no network ipv6 address removes all IPv6 prefixes.
Format no network ipv6 address
/Mode Privileged EXEC
network ipv6 gateway
Use this command to configure IPv6 gateway (i.e. default routers) information for the network port.
Format network ipv6 gateway
Mode Privileged EXEC
| Parameter Description | |
| gateway-address | Gateway address in IPv6 global or link-local address format. |
no network ipv6 gateway
Use this command to remove IPv6 gateways on the network port interface.
Format no network ipv6 gateway
Mode Privileged EXEC
show network ndp
This command displays NDP cache information for the network port.
Default enabled
Format show network ndp
Mode • Privileged EXEC
- User EXEC
| Field Description | |
| IPv6 Address The | IPv6 address of the interface. |
| MAC Address The | MAC Address used. |
| isRtr Specifies the router flag. | |
| Neighbor State | The state of the neighbor cache entry. Possible values are: Reachable, Delay. |
| Age Updated | The time in seconds that has elapsed since an entry was added to the cache. |
Example: The following shows example CLI display output for the command.
(Switch) #show network ndp
| Neighbor | Age | |||||
| IPv6 | Address | MAC Address | isRtr | State | Updated | |
| 3017::204:76FF:FE73:423A 00:04:76:73:42:3a | Reachable 447535 | |||||
| FE80::204:76FF:FE73:423A 00:04:76:73:42:3a | Delay 447540 | |||||
ping ipv6
Use this command to determine whether another computer is on the network. Ping provides a synchronous response when initiated from the CLI and Web interfaces. To use the command, configure the switch for network (in-band) connection. The source and target devices must have the ping utility enabled and running on top of TCP/IP. The switch can be pinged from any IP workstation with which the switch is connected through the default VLAN (VLAN 1), as long as there is a physical path between the switch and the workstation. The terminal interface sends three pings to the target station. Use the
You can utilize the ping or traceroute facilities over the service/network ports when using an IPv6 global address
Default • The default count is 1.
- The default interval is 3 seconds.
- The default size is 0 bytes.
Format ping ipv6 {ipv6-global-address|hostname} [size
Mode • Privileged EXEC
- User Exec
ping ipv6 interface
Use this command to determine whether another computer is on the network. To use the command, configure the switch for network (in-band) connection. The source and target devices must have the ping utility enabled and running on top of TCP/IP. The switch can be pinged from any IP workstation with which the switch is connected through the default VLAN (VLAN 1), as long as there is a physical path between the switch and the workstation. The terminal interface sends three pings to the target station. Use the interface keyword to ping an interface by using the link-local address or the global IPv6 address of the interface. You can use a loopback, network port, serviceport, tunnel, or physical interface as the source. Use the optional size keyword to specify the size of the ping packet. The
Format ping ipv6 interface {
Modes • Privileged EXEC
- User Exec
traceroute ipv6
Use this command to discover the routes that packets actually take when traveling to their destination through the network on a hop-by-hop basis. The
Format traceroute ipv6
Mode Privileged EXEC
Tunnel Interface Commands
The commands in this section describe how to create, delete, and manage tunnel interfaces. Several different types of tunnels provide functionality to facilitate the transition of IPv4 networks to IPv6 networks. These tunnels are divided into two classes: configured and automatic. The distinction is that configured tunnels are explicitly configured with a destination or endpoint of the tunnel. Automatic tunnels, in contrast, infer the endpoint of the tunnel from the destination address of packets routed into the tunnel. To assign an IP address to the tunnel interface, see “ip address” on page 4-9. To assign an IPv6 address to the tunnel interface, see “ipv6 address” on page 7-12.
interface tunnel
Use this command to enter the Interface Config mode for a tunnel interface. The
Format interface tunnel
Mode Global Config
no interface tunnel
This command removes the tunnel interface and associated configuration parameters for the specified tunnel interface.
Format no interface tunnel
Mode Global Config
tunnel source
This command specifies the source transport address of the tunnel, either explicitly or by reference to an interface.
Format tunnel source {
Mode Interface Config
tunnel destination
This command specifies the destination transport address of the tunnel.
Format tunnel destination {
Mode Interface Config
tunnel mode ipv6ip
This command specifies the mode of the tunnel. With the optional 6to4 argument, the tunnel mode is set to 6to4 automatic. Without the optional 6to4 argument, the tunnel mode is configured.
Format tunnel mode ipv6ip [6to4]
Mode Interface Config
show interface tunnel
This command displays the parameters related to tunnel such as tunnel mode, tunnel source address and tunnel destination address.
Format show interface tunnel [
Mode Privileged EXEC
If you do not specify a tunnel ID, the command shows the following information for each configured tunnel:
| Term Definition | |
| Tunnel ID The tunnel identification number. | |
| Interface The name of the tunnel interface. | |
| Tunnel Mode The tunnel mode. | |
| Source Address | The source transport address of the tunnel. |
| Destination Address | The destination transport address of the tunnel. |
If you specify a tunnel ID, the command shows the following information for the tunnel:
| Term Definition | |
| Interface Link Status | Shows whether the link is up or down. |
| MTU Size The max | maximum transmission unit for packets on the interface. |
| IPv6 Prefix is | If you enable IPv6 on the interface and assign an address, the IPv6 address and prefix display. |
Loopback Interface Commands
The commands in this section describe how to create, delete, and manage loopback interfaces. A loopback interface is always expected to be up. This interface can provide the source address for sent packets and can receive both local and remote packets. The loopback interface is typically used by routing protocols.
To assign an IP address to the loopback interface, see “ip address” on page 4-9. To assign an IPv6 address to the loopback interface, see “ipv6 address” on page 7-12.
interface loopback
Use this command to enter the Interface Config mode for a loopback interface. The range of the loopback ID is 0 to 7.
Format interface loopback
Mode Global Config
no interface loopback
This command removes the loopback interface and associated configuration parameters for the specified loopback interface.
Format no interface loopback
Mode Global Config
show interface loopback
This command displays information about configured loopback interfaces.
Format show interface loopback [
Mode Privileged EXEC
If you do not specify a loopback ID, the following information appears for each loopback interface on the system:
| Term Definition | |
| Loopback ID The | loopback ID associated with the rest of the information in the row. |
| Interface The interface name. | |
| IP Address The IPv4 address of the interface. | |
| Received Packets | The number of packets received on this interface. |
| Sent Packets The | number of packets transmitted from this interface. |
| IPv6 Address The | IPv6 address of this interface. |
If you specify a loopback ID, the following information appears:
| Term Definition | |
| Interface Link Status | Shows whether the link is up or down. |
| IP Address The IPv4 address of the interface. | |
| IPv6 is enabled (disabled) | Shows whether IPv6 is enabled on the interface. |
| IPv6 Prefix is The IPv6 address of the interface. | |
| MTU size The maximum transmission size for packets on this interface, in bytes. | |
IPv6 Routing Commands
This section describes the IPv6 commands you use to configure IPv6 on the system and on the interfaces. This section also describes IPv6 management commands and show commands.
ipv6 forwarding
This command enables IPv6 forwarding on the router.
Default enabled
Format ipv6 forwarding
Mode Global Config
no ipv6 forwarding
This command disables IPv6 forwarding on the router
Format no ipv6 forwarding
Mode Global Config
ipv6 hop-limit
This command defines the unicast hop count used in ipv6 packets originated by the node. The value is also included in router advertisements. Valid values for
Default not configured
Format ipv6 hop-limit
Mode Global Config
no ipv6 hop-limit
This command returns the unicast hop count to the default.
Format no ipv6 hop-limit
Mode Global Config
ipv6 unicast-routing
Use this command to enable the forwarding of IPv6 unicast datagrams.
Default disabled
Format ipv6 unicast-routing
Mode Global Config
no ipv6 unicast-routing
Use this command to disable the forwarding of IPv6 unicast datagrams.
Format no ipv6 unicast-routing
Mode Global Config
ipv6 enable
Use this command to enable IPv6 routing on an interface, including tunnel and loopback interfaces, that has not been configured with an explicit IPv6 address. When you use this command, the interface is automatically configured with a link-local address. You do not need to use this command if you configured an IPv6 global address on the interface.
Default disabled
Format ipv6 enable
Mode Interface Config
no ipv6 enable
Use this command to disable IPv6 routing on an interface.
Format no ipv6 enable
Mode Interface Config
ipv6 address
Use this command to configure an IPv6 address on an interface, including tunnel and loopback interfaces, and to enable IPv6 processing on this interface. You can assign multiple globally reachable addresses to an interface by using this command. You do not need to assign a link-local address by using this command since one is automatically created. The
You can express IPv6 addresses in eight blocks. Also of note is that instead of a period, a colon now separates each block. For simplification, leading zeros of each 16 bit block can be omitted. One sequence of 16 bit blocks containing only zeros can be replaced with a double colon “::”, but not more than one at a time (otherwise it is no longer a unique representation).
- Dropping zeros: 3ffe:ffff:100:f101:0:0:0:1 becomes 3ffe:ffff:100:f101::1
- Local host: 0000:0000:0000:0000:0000:0000:0000:0001 becomes ::1
• Any host: 0000:0000:0000:0000:0000:0000:0000:0000 becomes ::
The hexadecimal letters in the IPv6 addresses are not case-sensitive. An example of an IPv6 prefix and prefix length is 3ffe:1::1234/64.
The optional [eui-64] field designates that IPv6 processing on the interfaces was enabled using an EUI-64 interface ID in the low order 64 bits of the address. If you use this option, the value of
Format ipv6 address
Mode Interface Config
no ipv6 address
Use this command to remove all IPv6 addresses on an interface or specified IPv6 address. The
If you do not supply any parameters, the command deletes all the IPv6 addresses on an interface.
Format no ipv6 address [
Mode Interface Config
ipv6 route
Use this command to configure an IPv6 static route. The
Default disabled
Format ipv6 route
Mode Global Config
no ipv6 route
Use this command to delete an IPv6 static route. Use the command without the optional parameters to delete all static routes to the specified destination. Use the
Format no ipv6 route <ipv6-prefix>/<prefix_length> [{<next-hop-address> | Null0 | interface {<unit/slot/port> | tunnel <tunnel_id>} <next-hop-address> | <preference>}]
Mode Global Config
ipv6 route distance
This command sets the default distance (preference) for IPv6 static routes. Lower route distance values are preferred when determining the best route. The ipv6 route command allows you to optionally set the distance (preference) of an individual static route. The default distance is used when no distance is specified in this command.
Changing the default distance does not update the distance of existing static routes, even if they were assigned the original default distance. The new default distance will only be applied to static routes created after invoking the ipv6 route distance command.
Default 1
Format ipv6 route distance <1-255>
Mode Global Config
no ipv6 route distance
This command resets the default static route preference value in the router to the original default preference. Lower route preference values are preferred when determining the best route.
Format no ipv6 route distance
Mode Global Config
ipv6 mtu
This command sets the maximum transmission unit (MTU) size, in bytes, of IPv6 packets on an interface. This command replaces the default or link MTU with a new MTU value.

Note: The default MTU value for a tunnel interface is 1480. You cannot change this value.
Default 0 or link speed (MTU value (1500))
Format ipv6 mtu <1280-1500>
Mode Interface Config
no ipv6 mtu
This command resets maximum transmission unit value to default value.
Format no ipv6 mtu
Mode Interface Config
ipv6 nd dad attempts
This command sets the number of duplicate address detection probes transmitted. Duplicate address detection verifies that an IPv6 address on an interface is unique.
Default 1
Format ipv6 nd dad attempts <0 - 600>
Mode Interface Config
no ipv6 nd dad attempts
This command resets to number of duplicate address detection value to default value.
Format no ipv6 nd dad attempts
Mode Interface Config
ipv6 nd managed-config-flag
This command sets the “managed address configuration” flag in router advertisements. When the value is true, end nodes use DHCPv6. When the value is false, end nodes automatically configure addresses.
Default false
Format ipv6 nd managed-config-flag
Mode Interface Config
no ipv6 nd managed-config-flag
This command resets the “managed address configuration” flag in router advertisements to the default value.
Format no ipv6 nd managed-config-flag
Mode Interface Config
ipv6 nd ns-interval
This command sets the interval between router advertisements for advertised neighbor solicitations, in milliseconds. An advertised value of 0 means the interval is unspecified.
Default 0
Format ipv6 nd ns-interval {<1000-4294967295> | 0}
Mode Interface Config
no ipv6 nd ns-interval
This command resets the neighbor solicit retransmission interval of the specified interface to the default value.
Format no ipv6 nd ns-interval
Mode Interface Config
ipv6 nd other-config-flag
This command sets the “other stateful configuration” flag in router advertisements sent from the interface.
Default false
Format ipv6 nd other-config-flag
Mode Interface Config
no ipv6 nd other-config-flag
This command resets the “other stateful configuration” flag back to its default value in router advertisements sent from the interface.
Format no ipv6 nd other-config-flag
Mode Interface Config
ipv6 nd ra-interval
This command sets the transmission interval between router advertisements.
Default 600
Format ipv6 nd ra-interval-max <4-1800>
Mode Interface Config
no ipv6 nd ra-interval
This command sets router advertisement interval to the default.
Format no ipv6 nd ra-interval-max
Mode Interface Config
ipv6 nd ra-lifetime
This command sets the value, in seconds, that is placed in the Router Lifetime field of the router advertisements sent from the interface. The
Default 1800
Format ipv6 nd ra-lifetime
Mode Interface Config
no ipv6 nd ra-lifetime
This command resets router lifetime to the default value.
Format no ipv6 nd ra-lifetime
Mode Interface Config
ipv6 nd reachable-time
This command sets the router advertisement time to consider a neighbor reachable after neighbor discovery confirmation. Reachable time is specified in milliseconds. A value of zero means the time is unspecified by the router.
Default 0
Format ipv6 nd reachable-time <0-3600000>
Mode Interface Config
no ipv6 nd reachable-time
This command means reachable time is unspecified for the router.
Format no ipv6 nd reachable-time
Mode Interface Config
ipv6 nd suppress-ra
This command suppresses router advertisement transmission on an interface.
Default disabled
Format ipv6 nd suppress-ra
Mode Interface Config
no ipv6 nd suppress-ra
This command enables router transmission on an interface.
Format no ipv6 nd suppress-ra
Mode Interface Config
ipv6 unreachables
Use this command to enable the generation of ICMPv6 Destination Unreachable messages. By default, the generation of ICMPv6 Destination Unreachable messages is enabled.
Default enable
Format ipv6 unreachables
Mode Interface Config
no ipv6 unreachables
Use this command to prevent the generation of ICMPv6 Destination Unreachable messages.
Format no ipv6 unreachables
Mode Interface Config
ipv6 icmp error-interval
Use this command to limit the rate at which ICMPv6 error messages are sent. The rate limit is configured as a token bucket, with two configurable parameters, burst-size and burst-interval.
The burst-interval specifies how often the token bucket is initialized with burst-size tokens. burst-interval is from 0 to 2147483647 milliseconds (msec).
The burst-size is the number of ICMPv6 error messages that can be sent during one burst-interval. The range is from 1 to 200 messages.
To disable ICMP rate limiting, set burst-interval to zero (0).
Default • burst-interval of 1000 msec.
- burst-size of 100 messages
Format ipv6 icmp error-interval
Mode Global Config
no ipv6 icmp error-interval
Use the no form of the command to return burst-interval and burst-size to their default values.
Format no ipv6 icmp error-interval
Mode Global Config
show ipv6 brief
Use this command to display the IPv6 status of forwarding mode and IPv6 unicast routing mode.
Format show ipv6 brief
Mode Privileged EXEC
| Term Definition | |
| IPv6 Forwarding Mode | Shows whether the IPv6 forwarding mode is enabled. |
| IPv6 Unicast Routing Mode | Shows whether the IPv6 unicast routing mode is enabled. |
| IPv6 Hop Limit | Shows the unicast hop count used in IPv6 packets originated by the node. For more information, see “ipv6 hop-limit” on page 7-10. |
| ICMPv6 Rate Limit Error Interval | Shows how often the token bucket is initialized with burst-size tokens. For more information, see “ipv6 icmp error-interval” on page 7-19. |
| ICMPv6 Rate Limit Burst Size | Shows the number of ICMPv6 error messages that can be sent during one burst-interval. For more information, see “ipv6 icmp error-interval” on page 7-19. |
| Maximum Routes | Shows the maximum IPv6 route table size. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 brief
IPv6 Forwarding Mode.... Enable
IPv6 Unicast Routing Mode.... Enable
IPv6 Hop Limit.... 0
ICMPv6 Rate Limit Error Interval.... 1000 msec
ICMPv6 Rate Limit Burst Size.... 100 messages
Maximum Routes.... 3000
show ipv6 interface
Use this command to show the usability status of IPv6 interfaces and whether ICMPv6 Destination Unreachable messages may be sent.
Format show ipv6 interface {brief |
Mode Privileged EXEC
If you use the brief parameter, the following information displays for all configured IPv6 interfaces:
| Term Definition | |
| Interface The interface in unit/slot/port format. | |
| IPv6 Routing Operational Mode | Shows whether the mode is enabled or disabled. |
| IPv6 Address/Length | Shows the IPv6 address and length on interfaces with IPv6 enabled. |
If you specify an interface, the following information also appears.
| Term Definition | |
| IPv6 is enabled | Appears if IPv6 is enabled on the interface. |
| Routing Mode | Shows whether IPv6 routing is enabled or disabled. |
| Administrative Mode | Shows whether the interface administrative mode is enabled or disabled. |
| Bandwidth Shows bandwidth of the interface. | |
| Interface Maximum Transmission Unit | The MTU size, in bytes. |
| Router Duplicate Address Detection Transmits | The number of consecutive duplicate address detection probes to transmit. |
| Router Advertisement NS Interval | The interval, in milliseconds, between router advertisements for advertised neighbor solicitations. |
| Router Advertisement Lifetime | Shows the router lifetime value of the interface in router advertisements. |
| Router Advertisement Reachable Time | The amount of time, in milliseconds, to consider a neighbor reachable after neighbor discovery confirmation. |
| Router Advertisement Interval | The frequency, in seconds, that router advertisements are sent. |
| Router Advertisement Managed Config Flag | Shows whether the managed configuration flag is set (enabled) for router advertisements on this interface. |
| Router Advertisement Other Config Flag | Shows whether the other configuration flag is set (enabled) for router advertisements on this interface. |
| Router Advertisement Suppress Flag | Shows whether router advertisements are suppressed (enabled) or sent (disabled). |
| IPv6 Destination Unreachables | Shows whether ICMPv6 Destination Unreachable messages may be sent (enabled) or not (disabled). For more information, see “ipv6 unreachables” on page 7-19. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 interface 1/0/1
Routing Mode.... Disabled Administrative Mode.... Enabled IPv6 Routing Operational Mode.... Disabled Bandwidth.... 100000 kbps Interface Maximum Transmit Unit.... 1500 Router Duplicate Address Detection Transmits... 1 Router Advertisement NS Interval.... 0 Router Advertisement Lifetime.... 1800 Router Advertisement Reachable Time.... 0 Router Advertisement Interval.... 600 Router Advertisement Managed Config Flag.... Disabled Router Advertisement Other Config Flag.... Disabled Router Advertisement Suppress Flag.... Disabled IPv6 Destination Unreachables.... Enabled
No IPv6 prefixes configured.
If an IPv6 prefix is configured on the interface, the following information also appears.
| Term Definition | |
| IFPv6 Prefix is The IPv6 prefix for the specified interface. | |
| Preferred Lifetime | The amount of time the advertised prefix is a preferred prefix. |
| Valid Lifetime The amount of time the advertised prefix is valid. | |
| Onlink Flag Shows whether the onlink flag is set (enabled) in the prefix. | |
| Autonomous Flag | Shows whether the autonomous address-configuration flag (autoconfig) is set (enabled) in the prefix. |
show ipv6 neighbor
Use this command to display information about the IPv6 neighbors.
Format show ipv6 neighbor
Mode Privileged EXEC
| Term Definition | |
| Interface The interface in unit/slot/port format. | |
| IPv6 Address IPV6 address of neighbor or interface. | |
| MAC Address Link-layer Address. | |
| IsRtr Shows whether the neighbor is a router. If the value is TRUE, the neighbor is known to be a router, and FALSE otherwise. A value of FALSE might not mean Note that routers are not always known to be routers. | |
| Neighbor State | State of neighbor cache entry. Possible values are Incomplete, Reachable, Stale, Delay, Probe, and Unknown. |
| Last Updated The time in seconds that has elapsed since an entry was added to the cache. | |
clear ipv6 neighbors
Use this command to clear all entries IPv6 neighbor table or an entry on a specific interface. Use the
Format clear ipv6 neighbors [
Mode Privileged EXEC
show ipv6 route
This command displays the IPv6 routing table The
| Note: If you use the connected keyword for, the all option is not available because there are no best or non-best connected routes. |
Format show ipv6 route [{<ipv6-address> [<protocol>] | {{<ipv6-prefix/ipv6-prefix-length> | <unit/slot/port>} [<protocol>] | <protocol> | summary} [all] | all}]
Modes • Privileged EXEC
• User EXEC
| Term Definition | |
| Route Codes | The key for the routing protocol codes that might appear in the routing table output. |
The show ipv6 route command displays the routing tables in the following format:
Codes: C - connected, S - static
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF Ext 1, OE2 - OSPF Ext 2
ON1 - OSPF NSSA Ext Type 1, ON2 - OSPF NSSA Ext Type 2
The columns for the routing table display the following information:
| Term Definition | |
| Code The code for the routing protocol that created this routing entry. | |
| IPv6-Prefix/IPv6-Prefix-Length | The IPv6-Prefix and prefix-length of the destination IPv6 network corresponding to this route. |
| Preference/Metric | The administrative distance (preference) and cost (metric) associated with this route. An example of this output is [1/0], where 1 is the preference and 0 is the metric. |
| Tag The decimal value of the tag associated with a redistributed route, if it is not 0. | |
| Next-Hop | The outgoing router IPv6 address to use when forwarding traffic to the next router (if any) in the path toward the destination. |
| Route-Timestamp | The last updated time for dynamic routes. The format of Route-Timestamp will beDays:Hours:Minutes if days > = 1Hours:Minutes:Seconds if days < 1 |
| Interface | The outgoing router interface to use when forwarding traffic to the next destination. For reject routes, the next hop interface would be Null0 interface. |
To administratively control the traffic destined to a particular network and prevent it from being forwarded through the router, you can configure a static reject route on the router. Such traffic would be discarded and the ICMP destination unreachable message is sent back to the source. This is typically used for preventing routing loops. The reject route added in the RTO is of the type OSPF Inter-Area. Reject routes (routes of REJECT type installed by any protocol) are not redistributed by OSPF/RIP. Reject routes are supported in both OSPFv2 and OSPFv3.
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 route
IPv6 Routing Table - 3 entries
Codes: C - connected, S - static
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF Ext 1, OE2 - OSPF Ext 2
ON1 - OSPF NSSA Ext Type 1, ON2 - OSPF NSSA Ext Type 2
S 2001::/64 [10/0] directly connected, Null0
C 2003::/64 [0/0]
via ::, 0/11
S 2005::/64 [1/0]
via 2003::2, 0/11
C 5001::/64 [0/0]
via ::, 0/5
OE1 6001::/64 [110/1]
via fe80::200:42ff:fe7d:2f19, 00h:00m:23s, 0/5
OI 7000::/64 [110/6]
via fe80::200:4fff:fe35:c8bb, 00h:01m:47s, 0/11
show ipv6 route preferences
Use this command to show the preference value associated with the type of route. Lower numbers have a greater preference. A route with a preference of 255 cannot be used to forward traffic.
Format show ipv6 route preferences
Mode Privileged EXEC
| Term Definition | |
| Local Preference | of directly-connected routes. |
| Static Preference | of static routes. |
| OSPF Intra Preference | ence of routes within the OSPF area. |
| OSPF Inter Preference | ence of routes to other OSPF routes that are outside of the area. |
| OSPF External Preference | Preference of OSPF external routes. |
show ipv6 route summary
This command displays the summary of the routing table. Use all to display the count summary for all routes, including best and non-best routes. Use the command without parameters to display the count summary for only the best routes.
Format show ipv6 route summary [all]
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Connected Routes | Total number of connected routes in the routing table. |
| Static Routes Total | number of static routes in the routing table. |
| OSPF Routes Total | number of routes installed by OSPFv3 protocol. |
| Reject Routes Total | number of reject routes installed by all protocols. |
| Number of Prefixes | Summarizes the number of routes with prefixes of different lengths. |
| Total Routes The | total number of routes in the routing table. |
Example: The following shows example CLI display output for the command.
(Switch) #show ipv6 route summary
IPv6 Routing Table Summary - 3 entries
Connected Routes....1
Static Routes....2
OSPF Routes....0
Intra Area Routes....0
Inter Area Routes....0
External Type-1 Routes....0
External Type-2 Routes....0
Reject Routes....1
Total routes....3
Number of Prefixes:
/64:3
show ipv6 vlan
This command displays IPv6 VLAN routing interface addresses.
Format show ipv6 vlan
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| MAC Address used by Routing VLANs | Shows the MAC address. |
The rest of the output for this command is displayed in a table with the following column headings:
| Column Headings | Definition |
| VLAN ID The VLAN ID of a configured VLAN. | |
| Logical Interface | The interface in unit/slot/port format that is associated with the VLAN ID. |
| IPv6 Address/ Prefix Length | The IPv6 prefix and prefix length associated with the VLAN ID. |
show ipv6 traffic
Use this command to show traffic and statistics for IPv6 and ICMPv6. Specify a logical, loopback, or tunnel interface to view information about traffic on a specific interface. If you do not specify an interface, the command displays information about traffic on all interfaces.
Format show ipv6 traffic [{
Mode Privileged EXEC
| Term Definition | |
| Total Datagrams Received | Total number of input datagrams received by the interface, including those received in error. |
| Received Datagrams Locally Delivered | Total number of datagrams successfully delivered to IPv6 user-protocols (including ICMP). This counter increments at the interface to which these datagrams were addressed, which might not necessarily be the input interface for some of the datagrams. |
| Received Datagrams Discarded Due To Header Errors | Number of input datagrams discarded due to errors in their IPv6 headers, including version number mismatch, other format errors, hop count exceeded, errors discovered in processing their IPv6 options, etc. |
| Received Datagrams Discarded Due To MTU | Number of input datagrams that could not be forwarded because their size exceeded the link MTU of outgoing interface. |
| Received Datagrams Discarded Due To No Route | Number of input datagrams discarded because no route could be found to transmit them to their destination. |
| Received Datagrams With Unknown Protocol | Number of locally-addressed datagrams received successfully but discarded because of an unknown or unsupported protocol. This counter increments at the interface to which these datagrams were addressed, which might not be necessarily the input interface for some of the datagrams. |
| Received Datagrams Discarded Due To Invalid Address | Number of input datagrams discarded because the IPv6 address in their IPv6 header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (for example, : : 0) and unsupported addresses (for example, addresses with unallocated prefixes). Forentities which are not IPv6 routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address. |
| Received Datagrams Discarded Due To Truncated Data | Number of input datagrams discarded because datagram frame didn't carry enough data. |
| Received Datagrams Discarded Other | Number of input IPv6 datagrams for which no problems were encountered to prevent their continue processing, but which were discarded (e.g., for lack of buffer space). Note that this counter does not include datagrams discarded while awaiting re-assembly. |
| Received Datagrams Reassembly Required | Number of IPv6 fragments received which needed to be reassembled at this interface. Note that this counter increments at the interface to which these fragments were addressed, which might not be necessarily the input interface for some of the fragments. |
| Datagrams Successfully Reassembled | Number of IPv6 datagrams successfully reassembled. Note that this counter increments at the interface to which these datagrams were addressed, which might not be necessarily the input interface for some of the fragments. |
| Datagrams Failed To Reassemble | Number of failures detected by the IPv6 reassembly algorithm (for whatever reason: timed out, errors, etc.). Note that this is not necessarily a count of discarded IPv6 fragments since some algorithms (notably the algorithm in by combining them as they are received. This counter increments at the interface to which these fragments were addressed, which might not be necessarily the input interface for some of the fragments. |
| Datagrams Forwarded | Number of output datagrams which this entity received and forwarded to their final destinations. In entities which do not act as IPv6 routers, this counter will include only those packets which were Source-Routed via this entity, and the Source-Route processing was successful. Note that for a successfully forwarded datagram the counter of the outgoing interface increments. |
| Datagrams Locally Transmitted | Total number of IPv6 datagrams which local IPv6 user-protocols (including ICMP) supplied to IPv6 in requests for transmission. Note that this counter does not include any datagrams counted in ipv6IfStatsOutForwDatagrams. |
| Datagrams Transmit Failed | Number of output IPv6 datagrams for which no problem was encountered to prevent their transmission to their destination, but which were discarded (e.g., for lack of buffer space). Note that this counter would include datagrams counted in ipv6IfStatsOutForwDatagrams if any such packets met this (discretionary) discard criterion. |
| Fragments Created | Number of output datagram fragments that have been generated as a result of fragmentation at this output interface. |
| Datagrams Successfully Fragmented | Number of IPv6 datagrams that have been successfully fragmented at this output interface. |
| Datagrams Failed To Fragment | Number of IPv6 datagrams that have been discarded because they needed to be fragmented at this output interface but could not be. |
| Multicast Datagrams Received | Number of multicast packets received by the interface. |
| Multicast Datagrams Transmitted | Number of multicast packets transmitted by the interface. |
| Total ICMPv6 messages received | Total number of ICMP messages received by the interface which includes all those counted by ipv6IflcmpInErrors. Note that this interface is the interface to which the ICMP messages were addressed which may not be necessarily the input interface for the messages. |
| ICMPv6 Messages with errors | Number of ICMP messages which the interface received but determined as having ICMP-specific errors (bad ICMP checksums, bad length, etc.). |
| ICMPv6 Destination Unreachable Messages | Number of ICMP Destination Unreachable messages received by the interface. |
| ICMPv6 Messages Prohibited Administratively | Number of ICMP destination unreachable/communication administratively prohibited messages received by the interface. |
| ICMPv6 Time Exceeded Messages | Number of ICMP Time Exceeded messages received by the interface. |
| ICMPv6 Parameter Problem Messages | Number of ICMP Parameter Problem messages received by the interface. |
| ICMPv6 messages with too big packets | Number of ICMP Packet Too Big messages received by the interface. |
| ICMPv6 Echo Request Messages Received | Number of ICMP Echo (request) messages received by the interface. |
| ICMPv6 Echo Reply Messages Received | Number of ICMP Echo Reply messages received by the interface. |
| ICMPv6 Router Solicit Messages Received | Number of ICMP Router Solicit messages received by the interface. |
| ICMPv6 Router Advertisement Messages Received | Number of ICMP Router Advertisement messages received by the interface. |
| ICMPv6 Neighbor Solicit Messages Received | Number of ICMP Neighbor Solicit messages received by the interface. |
| ICMPv6 Neighbor Advertisement Messages Received | Number of ICMP Neighbor Advertisement messages received by the interface. |
| ICMPv6 Redirect Messages Received | Number of Redirect messages received by the interface. |
| Transmitted Number of ICMP | MPv6 Group Membership Query messages received by the interface. |
| Total ICMPv6 Messages Transmitted | Total number of ICMP messages which this interface attempted to send. Note that this counter includes all those counted by icmpOutErrors. |
| ICMPv6 Messages Not Transmitted Due To Error | Number of ICMP messages which this interface did not send due to problems discovered within ICMP such as a lack of buffers. This value should not include errors discovered outside the ICMP layer such as the inability of IPv6 to route the resultant datagram. In some implementations there may be no types of error which contribute to this counter's value. |
| ICMPv6 Destination Unreachable Messages Transmitted | Number of ICMP Destination Unreachable messages sent by the interface. |
| ICMPv6 Messages Prohibited Administratively Transmitted | Number of ICMP destination unreachable/communication administratively prohibited messages sent. |
| ICMPv6 Time Exceeded Messages Transmitted | Number of ICMP Time Exceeded messages sent by the interface. |
| ICMPv6 Parameter Problem Messages Transmitted | Number of ICMP Parameter Problem messages sent by the interface. |
| ICMPv6 Packet Too Big Messages Transmitted | Number of ICMP Packet Too Big messages sent by the interface. |
| ICMPv6 Echo Request Messages Transmitted | Number of ICMP Echo (request) messages sent by the interface.ICMP echo messages sent. |
| ICMPv6 Echo Reply Messages Transmitted | Number of ICMP Echo Reply messages sent by the interface. |
| ICMPv6 Router Solicit Messages Transmitted | Number of ICMP Router Solicitation messages sent by the interface. |
| ICMPv6 Router Advertisement Messages Transmitted | Number of ICMP Router Advertisement messages sent by the interface. |
| ICMPv6 Neighbor Solicit Messages Transmitted | Number of ICMP Neighbor Solicitation messages sent by the interface. |
| ICMPv6 Neighbor Advertisement Messages Transmitted | Number of ICMP Neighbor Advertisement messages sent by the interface. |
| ICMPv6 Redirect Messages Received | Number of Redirect messages sent. For a host, this object will always be zero, since hosts do not send redirects. |
| ICMPv6 Group Membership Query Messages Received | Number of ICMPv6 Group Membership Query messages sent. |
| ICMPv6 Group Membership Response Messages Received | Number of ICMPv6 Group Membership Response messages sent. |
| ICMPv6 Group Membership Reduction Messages Received | Number of ICMPv6 Group Membership Reduction messages sent. |
| ICMPv6 Duplicate Address Detects | Number of duplicate addresses detected by the interface. |
clear ipv6 statistics
Use this command to clear IPv6 statistics for all interfaces or for a specific interface, including loopback and tunnel interfaces. IPv6 statistics display in the output of the show ipv6 traffic command. If you do not specify an interface, the counters for all IPv6 traffic statistics reset to zero.
Format clear ipv6 statistics [{
Mode Privileged EXEC
OSPFv3 Commands
This section describes the commands you use to configure OSPFv3, which is a link-state routing protocol that you use to route traffic within a network.
ipv6 ospf
This command enables OSPF on a router interface or loopback interface.
Default disabled
Format ipv6 ospf
Mode Interface Config
no ipv6 ospf
This command disables OSPF on a router interface or loopback interface.
Format no ipv6 ospf
Mode Interface Config
ipv6 ospf areaid
This command sets the OSPF area to which the specified router interface belongs. The
Format ipv6 ospf areaid
Mode Interface Config
ipv6 ospf cost
This command configures the cost on an OSPF interface. The
Default 10
Format ipv6 ospf cost <1-65535>
Mode Interface Config
no ipv6 ospf cost
This command configures the default cost on an OSPF interface.
Format no ipv6 ospf cost
Mode Interface Config
ipv6 ospf dead-interval
This command sets the OSPF dead interval for the specified interface. The value for
Default 40
Format ipv6 ospf dead-interval
Mode Interface Config
no ipv6 ospf dead-interval
This command sets the default OSPF dead interval for the specified interface.
Format no ipv6 ospf dead-interval
Mode Interface Config
ipv6 ospf hello-interval
This command sets the OSPF hello interval for the specified interface. The value for
Default 10
Format ipv6 ospf hello-interval
Mode Interface Config
no ipv6 ospf hello-interval
This command sets the default OSPF hello interval for the specified interface.
Format no ipv6 ospf hello-interval
Mode Interface Config
ipv6 ospf mtu-ignore
This command disables OSPF maximum transmission unit (MTU) mismatch detection. OSPF Database Description packets specify the size of the largest IP packet that can be sent without fragmentation on the interface. When a router receives a Database Description packet, it examines the MTU advertised by the neighbor. By default, if the MTU is larger than the router can accept, the Database Description packet is rejected and the OSPF adjacency is not established.
Default enabled
Format ipv6 ospf mtu-ignore
Mode Interface Config
no ipv6 ospf mtu-ignore
This command enables the OSPF MTU mismatch detection.
Format no ipv6 ospf mtu-ignore
Mode Interface Config
ipv6 ospf network
This command changes the default OSPF network type for the interface. Normally, the network type is determined from the physical IP network type. By default all Ethernet networks are OSPF type broadcast. Similarly, tunnel interfaces default to point-to-point. When an Ethernet port is used as a single large bandwidth IP network between two routers, the network type can be point-to-point since there are only two routers. Using point-to-point as the network type eliminates the overhead of the OSPF designated router election. It is normally not useful to set a tunnel to OSPF network type broadcast.
Default broadcast
Format ipv6 ospf network {broadcast | point-to-point}
Mode Interface Config
no ipv6 ospf network
This command sets the interface type to the default value.
Format no ipv6 ospf network {broadcast | point-to-point}
Mode Interface Config
ipv6 ospf priority
This command sets the OSPF priority for the specified router interface. The priority of the interface is a priority integer from 0 to 255. A value of 0 indicates that the router is not eligible to become the designated router on this network.
Default 1, which is the highest router priority
Format ipv6 ospf priority <0-255>
Mode Interface Config
no ipv6 ospf priority
This command sets the default OSPF priority for the specified router interface.
Format no ipv6 ospf priority
Mode Interface Config
ipv6 ospf retransmit-interval
This command sets the OSPF retransmit Interval for the specified interface. The retransmit interval is specified in seconds. The value for
Default 5
Format ipv6 ospf retransmit-interval
Mode Interface Config
no ipv6 ospf retransmit-interval
This command sets the default OSPF retransmit Interval for the specified interface.
Format no ipv6 ospf retransmit-interval
Mode Interface Config
ipv6 ospf transmit-delay
This command sets the OSPF Transit Delay for the specified interface. The transmit delay is specified in seconds. In addition, it sets the estimated number of seconds it takes to transmit a link state update packet over this interface. Valid values for
Default 1
Format ipv6 ospf transmit-delay
Mode Interface Config
no ipv6 ospf transmit-delay
This command sets the default OSPF Transit Delay for the specified interface.
Format no ipv6 ospf transmit-delay
Mode Interface Config
ipv6 router ospf
Use this command to enter Router OSPFv3 Config mode.
Format ipv6 router ospf
Mode Global Config
area default-cost (OSPFv3)
This command configures the monetary default cost for the stub area. The operator must specify the area id and an integer value between 1–16777215.
Format area
Mode Router OSPFv3 Config
area nssa (OSPFv3)
This command configures the specified areaid to function as an NSSA.
Format area
Mode Router OSPFv3 Config
no area nssa(OSPFv3)
This command disables nssa from the specified area id.
Format no area
Mode Router OSPFv3 Config
area nssa default-info-originate (OSPFv3)
This command configures the metric value and type for the default route advertised into the NSSA. The optional metric parameter specifies the metric of the default route and is to be in a range of 1-16777214. If no metric is specified, the default value is 10. The metric type can be comparable (nssa-external 1) or non-comparable (nssa-external 2).
Format area
Mode Router OSPFv3 Config
no area nssa default-info-originate (OSPFv3)
This command disables the default route advertised into the NSSA.
Format no area
Mode Router OSPF Config
area nssa no-redistribute (OSPFv3)
This command configures the NSSA ABR so that learned external routes will not be redistributed to the NSSA.
Format area
Mode Router OSPFv3 Config
no area nssa no-redistribute (OSPFv3)
This command disables the NSSA ABR so that learned external routes are redistributed to the NSSA.
Format no area
Mode Router OSPF Config
area nssa no-summary (OSPFv3)
This command configures the NSSA so that summary LSAs are not advertised into the NSSA.
Format area
Mode Router OSPFv3 Config
no area nssa no-summary (OSPFv3)
This command disables nssa from the summary LSAs.
Format no area
Mode Router OSPF Config
area nssa translator-role (OSPFv3)
This command configures the translator role of the NSSA. A value of always causes the router to assume the role of the translator the instant it becomes a border router and a value of candidate causes the router to participate in the translator election process when it attains border router status.
Format area
Mode Router OSPFv3 Config
no area nssa translator-role (OSPFv3)
This command disables the nssa translator role from the specified area id.
Format no area
Mode Router OSPF Config
area nssa translator-stab-intv (OSPFv3)
This command configures the translator
Format area
no area nssa translator-stab-intv (OSPFv3)
This command disables the nssa translator's
Format no area
area range (OSPFv3)
This command creates a specified area range for a specified NSSA. The
Format area
no area range(OSPFv3)
This command deletes a specified area range. The
Format no area
area stub (OSPFv3)
This command creates a stub area for the specified area ID. A stub area is characterized by the fact that AS External LSAs are not propagated into the area. Removing AS External LSAs and Summary LSAs can significantly reduce the link state database of routers within the stub area.
Format area
Mode Router OSPFv3 Config
no area stub(OSPFv3)
This command deletes a stub area for the specified area ID.
Format no area
Mode Router OSPFv3 Config
area stub no-summary (OSPFv3)
This command disables the import of Summary LSAs for the stub area identified by
Default enabled
Format area
Mode Router OSPFv3 Config
no area stub no-summary(OSPFv3)
This command sets the Summary LSA import mode to the default for the stub area identified by
Format no area
Mode Router OSPFv3 Config
area virtual-link (OSPFv3)
This command creates the OSPF virtual interface for the specified
Format area
Mode Router OSPFv3 Config
no area virtual-link(OSPFv3)
This command deletes the OSPF virtual interface from the given interface, identified by
Format no area
Mode Router OSPFv3 Config
area virtual-link dead-interval (OSPFv3)
This command configures the dead interval for the OSPF virtual interface on the virtual interface identified by
Default 40
Format area
Mode Router OSPFv3 Config
no area virtual-link dead-interval(OSPFv3)
This command configures the default dead interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPFv3 Config
area virtual-link hello-interval (OSPFv3)
This command configures the hello interval for the OSPF virtual interface on the virtual interface identified by
Default 10
Format area
Mode Router OSPFv3 Config
no area virtual-link hello-interval(OSPFv3)
This command configures the default hello interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPFv3 Config
area virtual-link retransmit-interval (OSPFv3)
This command configures the retransmit interval for the OSPF virtual interface on the virtual interface identified by
Default 5
Format area
Mode Router OSPFv3 Config
no area virtual-link retransmit-interval(OSPFv3)
This command configures the default retransmit interval for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPFv3 Config
area virtual-link transmit-delay (OSPFv3)
This command configures the transmit delay for the OSPF virtual interface on the virtual interface identified by
Default 1
Format area
Mode Router OSPFv3 Config
no area virtual-link transmit-delay(OSPFv3)
This command configures the default transmit delay for the OSPF virtual interface on the virtual interface identified by
Format no area
Mode Router OSPFv3 Config
auto-cost (OSPFv3)
By default, OSPF computes the link cost of each interface from the interface bandwidth. Faster links have lower metrics, making them more attractive in route selection. The configuration parameters in the auto-cost reference bandwidth and bandwidth commands give you control over the default link cost. You can configure for OSPF an interface bandwidth that is independent of the actual link speed. A second configuration parameter allows you to control the ratio of interface bandwidth to link cost. The link cost is computed as the ratio of a reference bandwidth to the interface bandwidth (ref_bw / interface bandwidth), where interface bandwidth is defined by the bandwidth command. Because the default reference bandwidth is 100 Mbps, OSPF uses the same default link cost for all interfaces whose bandwidth is 100 Mbps or greater. Use the auto-cost command to change the reference bandwidth, specifying the reference bandwidth in megabits per second (Mbps). The reference bandwidth range is 1–4294967 Mbps. The different reference bandwidth can be independently configured for OSPFv2 and OSPFv3.
Default 100Mbps
Format auto-cost reference-bandwidth <1 to 4294967>
Mode Router OSPFv3 Config
no auto-cost reference-bandwidth (OSPFv3)
Use this command to set the reference bandwidth to the default value.
Format no auto-cost reference-bandwidth
Mode Router OSPFv3 Config
clear ipv6 ospf
Use this command to disable and re-enable OSPF.
Format clear ipv6 ospf
Mode Privileged EXEC
clear ipv6 ospf configuration
Use this command to reset the OSPF configuration to factory defaults.
Format clear ipv6 ospf configuration
Mode Privileged EXEC
clear ipv6 ospf counters
Use this command to reset global and interface statistics.
Format clear ipv6 ospf counters
Mode Privileged EXEC
clear ipv6 ospf neighbor
Use this command to drop the adjacency with all OSPF neighbors. On each neighbor's interface, send a one-way hello. Adjacencies may then be re-established. To drop all adjacencies with a specific router ID, specify the neighbor's Router ID using the optional parameter [neighbor-id].
Format clear ipv6 ospf neighbor [neighbor-id]
Mode Privileged EXEC
clear ipv6 ospf neighbor interface
To drop adjacency with all neighbors on a specific interface, use the optional parameter [unit/slot/port]. To drop adjacency with a specific router ID on a specific interface, use the optional parameter [neighbor-id].
Format clear ipv6 ospf neighbor interface [unit/slot/port] [neighbor-id]
Mode Privileged EXEC
clear ipv6 ospf redistribution
Use this command to flush all self-originated external LSAs. Reapply the redistribution configuration and re-originate prefixes as necessary.
Format clear ipv6 ospf redistribution
Mode Privileged EXEC
default-information originate (OSPFv3)
This command is used to control the advertisement of default routes.
Default • metric—unspecified • type—2
Format default-information originate [always] [metric <1-16777214>] [metric-type {1 | 2}]
Mode Router OSPFv3 Config
no default-information originate (OSPFv3)
This command is used to control the advertisement of default routes.
Format no default-information originate [metric] [metric-type]
Mode Router OSPFv3 Config
default-metric (OSPFv3)
This command is used to set a default for the metric of distributed routes.
Format default-metric <1-16777214>
Mode Router OSPFv3 Config
no default-metric (OSPFv3)
This command is used to set a default for the metric of distributed routes.
Format no default-metric
Mode Router OSPFv3 Config
distance ospf (OSPFv3)
This command sets the route preference value of OSPF route types in the router. Lower route preference values are preferred when determining the best route. The type of OSPF route can be intra, inter, or external. All the external type routes are given the same preference value. The range of
Default 110
Format distance ospf {intra-area <1-255> | inter-area <1-255> | external <1-255>}
Mode Router OSPFv3 Config
no distance ospf(OSPFv3)
This command sets the default route preference value of OSPF routes in the router. The type of OSPF route can be intra, inter, or external. All the external type routes are given the same preference value.
Format no distance ospf {intra-area | inter-area | external}
Mode Router OSPFv3 Config
enable (OSPFv3)
This command resets the default administrative mode of OSPF in the router (active).
Default enabled
Format enable
Mode Router OSPFv3 Config
no enable (OSPFv3)
This command sets the administrative mode of OSPF in the router to inactive.
Format no enable
Mode Router OSPFv3 Config
exit-overflow-interval (OSPFv3)
This command configures the exit overflow interval for OSPF. It describes the number of seconds after entering Overflow state that a router will wait before attempting to leave the overflow state. This allows the router to again originate non-default AS-external-LSAs. When set to 0, the router will not leave overflow state until restarted. The range for
Default 0
Format exit-overflow-interval
Mode Router OSPFv3 Config
no exit-overflow-interval(OSPFv3)
This command configures the default exit overflow interval for OSPF.
Format no exit-overflow-interval
Mode Router OSPFv3 Config
external-lsdb-limit (OSPFv3)
This command configures the external LSDB limit for OSPF. If the value is -1, then there is no limit. When the number of non-default AS-external-LSAs in a router's link-state database reaches the external LSDB limit, the router enters overflow state. The router never holds more than the external LSDB limit non-default AS-external-LSAs in it database. The external LSDB limit MUST be set identically in all routers attached to the OSPF backbone and/or any regular OSPF area. The range for
Default -1
Format external-lsdb-limit
Mode Router OSPFv3 Config
no external-lsdb-limit
This command configures the default external LSDB limit for OSPF.
Format no external-lsdb-limit
Mode Router OSPFv3 Config
maximum-paths (OSPFv3)
This command sets the number of paths that OSPF can report for a given destination where maxpaths is platform dependent.
Default 4
Format maximum-paths
Mode Router OSPFv3 Config
no maximum-paths
This command resets the number of paths that OSPF can report for a given destination back to its default value.
Format no maximum-paths
Mode Router OSPFv3 Config
passive-interface default (OSPFv3)
Use this command to enable global passive mode by default for all interfaces. It overrides any interface level passive mode. OSPF shall not form adjacencies over a passive interface.
Default disabled
Format passive-interface default
Mode Router OSPFv3 Config
no passive-interface default(OSPFv3)
Use this command to disable the global passive mode by default for all interfaces. Any interface previously configured to be passive reverts to non-passive mode.
Format no passive-interface default
Mode Router OSPFv3 Config
passive-interface (OSPFv3)
Use this command to set the interface or tunnel as passive. It overrides the global passive mode that is currently effective on the interface or tunnel.
Default disabled
Format passive-interface {
Mode Router OSPFv3 Config
no passive-interface(OSPFv3)
Use this command to set the interface or tunnel as non-passive. It overrides the global passive mode that is currently effective on the interface or tunnel.
Format no passive-interface {
Mode Router OSPFv3 Config
redistribute (OSPFv3)
This command configures the OSPFv3 protocol to allow redistribution of routes from the specified source protocol/routers.
Default • metric—unspecified
• type—2
• tag—0
Format redistribute {static | connected} [metric <0-16777214>] [metric-type {1 | 2}] [tag <0-4294967295>]
Mode Router OSPFv3 Config
no redistribute(OSPFv3)
This command configures OSPF protocol to prohibit redistribution of routes from the specified source protocol/routers.
Format no redistribute {static | connected} [metric] [metric-type] [tag]
Mode Router OSPFv3 Config
router-id (OSPFv3)
This command sets a 4-digit dotted-decimal number uniquely identifying the router ospf id. The
Format router-id
Mode Router OSPFv3 Config
trapflags (OSPFv3)
Use this command to enable individual OSPF traps, enable a group of trap flags at a time, or enable all the trap flags at a time. The different groups of trapflags, and each group's specific trapflags to enable or disable, are listed in
Table 2: Trapflag Groups (OSPFv3)
| Group Flags |
| errors • authentication-failure |
| • bad-packet |
| • config-error |
| • virt-authentication-failure |
| • virt-bad-packet |
| • virt-config-error |
| if-rx ir-rx-packet |
| lsa • Isa-maxage |
| • Isa-originate |
| overflow • lsdb-overflow |
| • lsdb-approaching-overflow |
| retransmit • packets |
| • virt-packets |
| rtb • rtb-entry-info |
| state-change • if-state-change |
| • neighbor-state-change |
| • virtif-state-change |
| • virtneighbor-state-change |
- To enable the individual flag, enter the group name followed by that particular flag.
- To enable all the flags in that group, give the group name followed by all.
- To enable all the flags, give the command as trapflags all.
Default disabled
Format trapflags {
all |
errors {all | authentication-failure | bad-packet | config-error |
virt-
authentication-failure | virt-bad-packet | virt-config-error} |
if-rx {all | if-rx-packet} |
lsa {all | lsa-maxage | lsa-originate} |
overflow {all | lsdb-overflow | lsdb-approaching-overflow} |
retransmit {all | packets | virt-packets} |
rtb {all, rtb-entry-info} |
state-change {all | if-state-change | neighbor-state-change | virtif-state-change |
virtneighbor-state-change}
}
Mode Router OSPFv3 Config
no trapflags(OSPFv3)
Use this command to revert to the default reference bandwidth.
- To disable the individual flag, enter the group name followed by that particular flag.
- To disable all the flags in that group, give the group name followed by a11.
- To disable all the flags, give the command as trapflags all.
Format no trapflags {
all |
errors {all | authentication-failure | bad-packet | config-error |
virt-
authentication-failure | virt-bad-packet | virt-config-error} |
if-rx {all | if-rx-packet} |
lsa {all | lsa-maxage | lsa-originate} |
overflow {all | lsdb-overflow | lsdb-approaching-overflow} |
retransmit {all | packets | virt-packets} |
rtb {all, rtb-entry-info} |
state-change {all | if-state-change | neighbor-state-change | virtif-state-change |
virtneighbor-state-change}
}
Mode Router OSPFv3 Config
show ipv6 ospf
This command displays information relevant to the OSPF router.
Format show ipv6 ospf
Mode Privileged EXEC

Note: Some of the information below displays only if you enable OSPF and configure certain features.
| Term Definition | |
| Router ID | A 32 bit integer in dotted decimal format identifying the router, about which information is displayed. This is a configured value. |
| OSPF Admin Mode | Shows whether the administrative mode of OSPF in the router is enabled or disabled. This is a configured value. |
| ABR Status Shows whether the router is an OSPF Area Border Router. | |
| ASBR Status | Reflects whether the ASBR mode is enabled or disabled. Enable implies that the router is an autonomous system border router. Router automatically becomes an ASBR when it is configured to redistribute routes learnt from other protocol. The possible values for the ASBR status is enabled (if the router is configured to re-distribute routes learned by other protocols) or disabled (if the router is not configured for the same). |
| Stub Router | When OSPF runs out of resources to store the entire link state database, or any other state information, OSPF goes into stub router mode. As a stub router, OSPF re-originates its own router LSAs, setting the cost of all non-stub interfaces to infinity. To restore OSPF to normal operation, disable and re-enable OSPF. |
| Exit Overflow Interval | The number of seconds that, after entering overflow state, a router will attempt to leave overflow state. |
| External LSDB Overflow | When the number of non-default external LSAs exceeds the configured limit, External LSDB Limit, OSPF goes into LSDB overflow state. In this state, OSPF withdraws all of its self-originated non-default external LSAs. After the Exit Overflow Interval, OSPF leaves the overflow state, if the number of external LSAs has been reduced. |
| External LSA Count | The number of external (LS type 5) link-state advertisements in the link-state database. |
| External LSA Checksum | The sum of the LS checksums of external link-state advertisements contained in the link-state database. |
| New LSAs Originated | The number of new link-state advertisements that have been originated. |
| LSAs Received | The number of link-state advertisements received determined to be new instantiations. |
| LSA Count The total number of link state advertisements currently in the link state database. | |
| Maximum Number of LSAs | The maximum number of LSAs that OSPF can store. |
| LSA High Water Mark | The maximum size of the link state database since the system started. |
| Retransmit List Entries | The total number of LSAs waiting to be acknowledged by all neighbors. An LSA may be pending acknowledgment from more than one neighbor. |
| Maximum Number of Retransmit Entries | The maximum number of LSAs that can be waiting for acknowledgment at any given time. |
| Retransmit Entries High Water Mark | The highest number of LSAs that have been waiting for acknowledgment. |
| External LSDB Limit | The maximum number of non-default AS-external-LSAs entries that can be stored in the link-state database. |
| Default Metric Default value for redistributed routes. | |
| Default Passive Setting | Shows whether the interfaces are passive by default. |
| Default Route Advertise | Indicates whether the default routes received from other source protocols are advertised or not. |
| Always Shows whether default routes are always advertised. | |
| Metric | The metric for the advertised default routes. If the metric is not configured, this field is blank. |
| Metric Type Shows whether the routes are External Type 1 or External Type 2. | |
| Number of Active Areas | The number of active OSPF areas. An “active” OSPF area is an area with at least one interface up. |
| AutoCost Ref BW | Shows the value of the auto-cost reference bandwidth configured on the router. |
| Maximum Paths | The maximum number of paths that OSPF can report for a given destination. |
| Redistributing | This field is a heading and appears only if you configure the system to take routes learned from a non-OSPF source and advertise them to its peers. |
| Source Shows source protocol/routes that are being redistributed. Possible values are static, connected, BGP, or RIP. | |
| Metric The metric of the routes being redistributed. | |
| Metric Type Shows whether the routes are External Type 1 or External Type 2. | |
| Tag The decimal value attached to each external route. | |
| Subnets | For redistributing routes into OSPF, the scope of redistribution for the specified protocol. |
| Distribute-List The access list used to filter redistributed routes. | |
show ipv6 ospf abr
This command displays the internal OSPFv3 routes to reach Area Border Routers (ABR). This command takes no options.
Format show ipv6 ospf abr
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Type The type of | the route to the destination. It can be either:• intra — Intra-area route• inter — Inter-area route |
| Router ID Router | ID of the destination. |
| Cost Cost of using this route. | |
| Area ID The area | ID of the area from which this route is learned. |
| Next Hop Next hop | toward the destination. |
| Next Hop Intf | The outgoing router interface to use when forwarding traffic to the next hop. |
show ipv6 ospf area
This command displays information about the area. The
Format show ipv6 ospf area
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| AreaID The area id of the requested OSPF area. | |
| External Routing | A number representing the external routing capabilities for this area. |
| Spf Runs | The number of times that the intra-area route table has been calculated using this area's link-state database. |
| Area Border Router Count | The total number of area border routers reachable within this area. |
| Area LSA Count | Total number of link-state advertisements in this area's link-state database, excluding AS External LSAs. |
| Area LSA Checksum | A number representing the Area LSA Checksum for the specified AreaID excluding the external (LS type 5) link-state advertisements. |
| Stub Mode | Represents whether the specified Area is a stub area or not. The possible values are enabled and disabled. This is a configured value. |
| Import Summary LSAs | Shows whether to import summary LSAs (enabled). |
| OSPF Stub Metric Value | The metric value of the stub area. This field displays only if the area is a configured as a stub area. |
The following OSPF NSSA specific information displays only if the area is configured as an NSSA.
| Term Definition | |
| Import Summary LSAs | Shows whether to import summary LSAs into the NSSA. |
| Redistribute into NSSA | Shows whether to redistribute information into the NSSA. |
| Default Information Originate | Shows whether to advertise a default route into the NSSA. |
| Default Metric The metric value for the default route advertised into the NSSA. | |
| Default Metric Type | The metric type for the default route advertised into the NSSA. |
| Translator Role | The NSSA translator role of the ABR, which is always or candidate. |
| Translator Stability Interval | The amount of time that an elected translator continues to perform its duties after it determines that its translator status has been deposed by another router. |
| Translator State | Shows whether the ABR translator state is disabled, always, or elected. |
show ipv6 ospf asbr
This command displays the internal OSPFv3 routes to reach Autonomous System Boundary Routers (ASBR). This command takes no options.
Format show ipv6 ospf asbr
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Type The type of | the route to the destination. It can be either:• intra — Intra-area route• inter — Inter-area route |
| Router ID Router | ID of the destination. |
| Cost Cost of using this route. | |
| Area ID The area | ID of the area from which this route is learned. |
| Next Hop Next hop toward the destination. | |
| Next Hop Intf The | outgoing router interface to use when forwarding traffic to the next hop. |
show ipv6 ospf database
This command displays information about the link state database when OSPFv3 is enabled. If you do not enter any parameters, the command displays the LSA headers for all areas. Use the optional
display the link LSAs. Use network to display the network LSAs. Use nssa-external to display NSSA external LSAs. Use prefix to display intra-area Prefix LSAs. Use router to display router LSAs. Use unknown area, unknown as, or unknown link to display unknown area, AS or link-scope LSAs, respectively. Use
Format show ipv6 ospf [
Modes • Privileged EXEC • User EXEC
For each link-type and area, the following information is displayed.
| Term Definition | |
| Link Id A number | that uniquely identifies an LSA that a router originates from all other self originated LSAs of the same LS type. |
| Adv Router The | Advertising Router. Is a 32 bit dotted decimal number representing the LSDB interface. |
| Age A number representing the age of the link state advertisement in seconds. | |
| Sequence A number that represents which LSA is more recent. | |
| Checksum The total number LSA checksum. | |
| Options | An integer indicating that the LSA receives special handling during routing calculations. |
| Rtr Opt Router Options are valid for router links only. | |
show ipv6 ospf database database-summary
Use this command to display the number of each type of LSA in the database and the total number of LSAs in the database.
Format show ipv6 ospf database database-summary
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| Router Total number of router LSAs in the OSPFv3 link state database. | |
| Network Total number of network LSAs in the OSPFv3 link state database. | |
| Inter-area Prefix Total number of inter-area prefix LSAs in the OSPFv3 link state database. | |
| Inter-area Router Total number of inter-area router LSAs in the OSPFv3 link state database. | |
| Type-7 Ext Total number of NSSA external LSAs in the OSPFv3 link state database. | |
| Link Total number of link LSAs in the OSPFv3 link state database. | |
| Intra-area Prefix Total number of intra-area prefix LSAs in the OSPFv3 link state database. | |
| Link Unknown Total number of link-source unknown LSAs in the OSPFv3 link state database. | |
| Area Unknown Total number of area unknown LSAs in the OSPFv3 link state database. | |
| AS Unknown Total number of as unknown LSAs in the OSPFv3 link state database. | |
| Type-5 Ext Total number of AS external LSAs in the OSPFv3 link state database. | |
| Self-Originated Type-5 Total number of self originated AS external LSAs in the OSPFv3 link state database. | |
| Total Total number of router LSAs in the OSPFv3 link state database. | |
show ipv6 ospf interface
This command displays the information for the IFO object or virtual interface tables.
Format show ipv6 ospf interface {
Modes • Privileged EXEC • User EXEC
| Term Definition | |
| IPv6 Address The | IPv6 address of the interface. |
| ifIndex The | interface index number associated with the interface. |
| OSPF Admin Mode | Shows whether the admin mode is enabled or disabled. |
| OSPF Area ID The | area ID associated with this interface. |
| Router Priority | The router priority. The router priority determines which router is the designated router. |
| Retransmit Interval | The frequency, in seconds, at which the interface sends LSA. |
| Hello Interval The frequency, in seconds, at which the interface sends Hello packets. | |
| Dead Interval | The amount of time, in seconds, the interface waits before assuming a neighbor is down. |
| LSA Ack Interval | The amount of time, in seconds, the interface waits before sending an LSA acknowledgement after receiving an LSA. |
| Iftransit Delay Interval | The number of seconds the interface adds to the age of LSA packets before transmission. |
| Authentication Type | The type of authentication the interface performs on LSAs it receives. |
| Metric Cost The priority of the path. Low costs have a higher priority than high costs. | |
| Passive Status Shows whether the interface is passive or not. | |
| OSPF MTU-ignore | Shows whether to ignore MTU mismatches in database descriptor packets sent from neighboring routers. |
The following information only displays if OSPF is initialized on the interface:
| Term Definition | |
| OSPF Interface Type | Broadcast LANs, such as Ethernet and IEEE 802.5, take the value broadcast. The OSPF Interface Type will be 'broadcast'. |
| State The OSPF | Interface States are: down, loopback, waiting, point-to-point, designated router, and backup designated router. |
| Designated Router | The router ID representing the designated router. |
| Backup Designated Router | The router ID representing the backup designated router. |
| Number of Link Events | The number of link events. |
| Metric Cost The cost of the OSPF interface. | |
show ipv6 ospf interface brief
This command displays brief information for the IFO object or virtual interface tables.
Format show ipv6 ospf interface brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Admin Mode States whether OSPF is enabled or disabled on a router interface. | |
| Area ID The OSPF Area ID for the specified interface. | |
| Router Priority | The router priority. The router priority determines which router is the designated router. |
| Hello Interval The frequency, in seconds, at which the interface sends Hello packets. | |
| Dead Interval | The amount of time, in seconds, the interface waits before assuming a neighbor is down. |
| Retransmit Interval | The frequency, in seconds, at which the interface sends LSA. |
| Retransmit Delay Interval | The number of seconds the interface adds to the age of LSA packets before transmission. |
| LSA Ack Interval | The amount of time, in seconds, the interface waits before sending an LSA acknowledgement after receiving an LSA. |
show ipv6 ospf interface stats
This command displays the statistics for a specific interface. The command only displays information if OSPF is enabled.
Format show ipv6 ospf interface stats
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| OSPFv3 Area ID | The area id of this OSPF interface. |
| IPv6 Address The | IP address associated with this OSPF interface. |
| OSPFv3 Interface Events | The number of times the specified OSPF interface has changed its state, or an error has occurred. |
| Virtual Events The number of state changes or errors that occurred on this virtual link. | |
| Neighbor Events | The number of times this neighbor relationship has changed state, or an error has occurred. |
| Packets Received | The number of OSPFv3 packets received on the interface. |
| Packets Transmitted | The number of OSPFv3 packets sent on the interface. |
| LSAs Sent The total number of LSAs flooded on the interface. | |
| LSA Acks Received | The total number of LSA acknowledged from this interface. |
| LSA Acks Sent The total number of LSAs acknowledged to this interface. | |
| Sent Packets The number of OSPF packets transmitted on the interface. | |
| Received Packets | The number of valid OSPF packets received on the interface. |
| Discards | The number of received OSPF packets discarded because of an error in the packet or an error in processing the packet. |
| Bad Version | The number of received OSPF packets whose version field in the OSPF header does not match the version of the OSPF process handling the packet. |
| Virtual Link Not Found | The number of received OSPF packets discarded where the ingress interface is in a non-backbone area and the OSPF header identifies the packet as belonging to the backbone, but OSPF does not have a virtual link to the packet's sender. |
| Area Mismatch | The number of OSPF packets discarded because the area ID in the OSPF header is not the area ID configured on the ingress interface. |
| Invalid Destination Address | The number of OSPF packets discarded because the packet's destination IP address is not the address of the ingress interface and is not the AllDrRouters or AllSpfRouters multicast addresses. |
| No Neighbor at Source Address | The number of OSPF packets dropped because the sender is not an existing neighbor or the sender's IP address does not match the previously recorded IP address for that neighbor. NOTE: Does not apply to Hellos. |
| Invalid OSPF Packet Type | The number of OSPF packets discarded because the packet type field in the OSPF header is not a known type. |
| Hellos Ignored | The number of received Hello packets that were ignored by this router from the new neighbors after the limit has been reached for the number of neighbors on an interface or on the system as a whole. |
See “show ip ospf interface stats” on page 4-75 for a sample output of the number of OSPF packets of each type sent and received on the interface.
show ipv6 ospf neighbor
This command displays information about OSPF neighbors. If you do not specify a neighbor IP address, the output displays summary information in a table. If you specify an interface or tunnel, only the information for that interface or tunnel displays. The
Format show ipv6 ospf neighbor [interface {
Modes • Privileged EXEC • User EXEC
If you do not specify an IP address, a table with the following columns displays for all neighbors or the neighbor associated with the interface that you specify:
| Term Definition | |
| Router ID The 4-digit dotted-decimal number of the neighbor router. | |
| Priority | The OSPF priority for the specified interface. The priority of an interface is a priority integer from 0 to 255. A value of '0' indicates that the router is not eligible to become the designated router on this network. |
| Intf ID The interface ID of the neighbor. | |
| Interface The interface of the local router in unit/slot/port format. | |
| State The state of the neighboring routers. Possible values are:Down- initial state of the neighbor conversation - no recent information has been received from the neighbor.Attempt - no recent information has been received from the neighbor but a more concerted effort should be made to contact the neighbor.Init - an Hello packet has recently been seen from the neighbor, but bidirectional communication has not yet been established.2 way - communication between the two routers is bidirectional.Exchange start - the first step in creating an adjacency between the two neighboring routers, the goal is to decide which router is the master and to decide upon the initial DD sequence number.Exchange - the router is describing its entire link state database by sending Database Description packets to the neighbor.Full - the neighboring routers are fully adjacent and they will now appear in router-LSAs and network-LSAs. | |
| Dead Time The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable. | |
If you specify an IP address for the neighbor router, the following fields display:
| Term Definition | |
| Interface The interface of the local router in unit/slot/port format. | |
| Area ID The area | ID associated with the interface. |
| Options | An integer value that indicates the optional OSPF capabilities supported by the neighbor. These are listed in its Hello packets. This enables received Hello Packets to be rejected (i.e., neighbor relationships will not even start to form) if there is a mismatch in certain crucial OSPF capabilities. |
| Router Priority The router priority for the specified interface. | |
| Dead Timer Due | The amount of time, in seconds, to wait before the router assumes the neighbor is unreachable. |
| State The state of the neighboring routers. | |
| Events Number of times this neighbor relationship has changed state, or an error has occurred. | |
| Retransmission Queue Length | An integer representing the current length of the retransmission queue of the specified neighbor router Id of the specified interface. |
show ipv6 ospf range
This command displays information about the area ranges for the specified
Format show ipv6 ospf range
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID The area | id of the requested OSPF area. |
| IP Address An IP | address which represents this area range. |
| Lsdb Type The type of link advertisement associated with this area range. | |
| Advertisement The status of the advertisement: enabled or disabled. | |
show ipv6 ospf stub table
This command displays the OSPF stub table. The information below will only be displayed if OSPF is initialized on the switch.
Format show ipv6 ospf stub table
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID A 32-bit identifier for the created stub area. | |
| Type of Service | Type of service associated with the stub metric. For this release, Normal TOS is the only supported type. |
| Metric Val | The metric value is applied based on the TOS. It defaults to the least metric of the type of service among the interfaces to other areas. The OSPF cost for a route is a function of the metric value. |
| Import Summary LSA | Controls the import of summary LSAs into stub areas. |
show ipv6 ospf virtual-link
This command displays the OSPF Virtual Interface information for a specific area and neighbor. The
Format show ipv6 ospf virtual-link
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID The area id of the requested OSPF area. | |
| Neighbor Router ID | The input neighbor Router ID. |
| Hello Interval The configured hello interval for the OSPF virtual interface. | |
| Dead Interval The configured dead interval for the OSPF virtual interface. | |
| Iftransit Delay Interval | The configured transit delay for the OSPF virtual interface. |
| Retransmit Interval | The configured retransmit interval for the OSPF virtual interface. |
| Authentication Type | The type of authentication the interface performs on LSAs it receives. |
| State The OSPF Interface States are: down, loopback, waiting, point-to-point, designated router, and backup designated router. This is the state of the OSPF interface. | |
| Neighbor State The neighbor state. | |
show ipv6 ospf virtual-link brief
This command displays the OSPFV3 Virtual Interface information for all areas in the system.
Format show ipv6 ospf virtual-link brief
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Area ID The area id of the requested OSPFV3 area. | |
| Neighbor The neighbor interface of the OSPFV3 virtual interface. | |
| Hello Interval The configured hello interval for the OSPFV3 virtual interface. | |
| Dead Interval The configured dead interval for the OSPFV3 virtual interface. | |
| Retransmit Interval | The configured retransmit interval for the OSPFV3 virtual interface. |
| Transit Delay The configured transit delay for the OSPFV3 virtual interface. | |
DHCPv6 Commands
This section describes the command you use to configure the DHCPv6 server on the system and to view DHCPv6 information.
service dhcpv6
This command enables DHCPv6 configuration on the router.
Default disabled
Format service dhcpv6
Mode Global Config
no service dhcpv6
This command disables DHCPv6 configuration on router.
Format no service dhcpv6
Mode Global Config
ipv6 dhcp server
Use this command to configure DHCPv6 server functionality on an interface. The
Format ipv6 dhcp server
ipv6 dhcp relay destination
Use this command to configure an interface for DHCPv6 relay functionality. Use the destination keyword to set the relay server IPv6 address. The

Note: If
Format ipv6 dhcp relay {destination [
Mode Interface Config
ipv6 dhcp relay-agent-info-opt
Use this command to configure a number to represent the DHCPv6 Relay Agent Information Option. The DHCPv6 Relay Agent Information Option allows for various sub-options to be attached to messages that are being relayed by the local router to a relay server. The relay server may in turn use this information in determining an address to assign to a DHCPv6 client.
Default 32
Format ipv6 dhcp relay-agent-info-opt <32-65535>
Mode Global Config
ipv6 dhcp relay-agent-info-remote-id-subopt
Use this command to configure a number to represent the DHCPv6 the “remote-id” sub-option.
Default 1
Format ipv6 dhcp relay-agent-info-remote-id-subopt <1-65535>
Mode Global Config
ipv6 dhcp pool
Use this command from Global Config mode to enter IPv6 DHCP Pool Config mode. Use the exit command to return to Global Config mode. To return to the User EXEC mode, enter CTRL+Z. The
Format ipv6 dhcp pool
Mode Global Config
no ipv6 dhcp pool
This command removes the specified DHCPv6 pool.
Format no ipv6 dhcp pool
Mode Global Config
domain-name (IPv6)
This command sets the DNS domain name which is provided to DHCPv6 client by DHCPv6 server. DNS domain name is configured for stateless server support. Domain name consist of no more than 31 alpha-numeric characters. DHCPv6 pool can have multiple number of domain names with maximum of 8.
no domain-name
Format domain-name
Mode IPv6 DHCP Pool Config
This command will remove dhcpv6 domain name from dhcpv6 pool.
Format no domain-name
Mode IPv6 DHCP Pool Config
dns-server (IPv6)
This command sets the ipv6 DNS server address which is provided to dhcpv6 client by dhcpv6 server. DNS server address is configured for stateless server support. DHCPv6 pool can have multiple number of domain names with maximum of 8.
Format dns-server
Mode IPv6 DHCP Pool Config
no dns-server
This command will remove DHCPv6 server address from DHCPv6 server.
Format no dns-server
Mode IPv6 DHCP Pool Config
prefix-delegation (IPv6)
Multiple IPv6 prefixes can be defined within a pool for distributing to specific DHCPv6 Prefix delegation clients. Prefix is the delegated IPv6 prefix. DUID is the client's unique DUID value (Example: 00:01:00:09:f8:79:4e:00:04:76:73:43:76'). Name is 31 characters textual client's name which is useful for logging or tracing only. Valid lifetime is the valid lifetime for the delegated prefix in seconds and preferred lifetime is the preferred lifetime for the delegated prefix in seconds.
Default • valid-lifetime—2592000
• preferred-lifetime—604800
Format prefix-delegation
Mode IPv6 DHCP Pool Config
no prefix-delegation
This command deletes a specific prefix-delegation client.
Format no prefix-delegation
Mode IPv6 DHCP Pool Config
show ipv6 dhcp
This command displays the DHCPv6 server name and status.
Format show ipv6 dhcp
Mode Privileged EXEC
| Term Definition | |
| DHCPv6 is Enabled (Disabled) | The status of the DHCPv6 server. |
| Server DUID If configured, shows the DHCPv6 unique identifier. | |
show ipv6 dhcp statistics
This command displays the IPv6 DHCP statistics for all interfaces.
Format show ipv6 dhcp statistics
Mode Privileged EXEC
| Term Definition | |
| DHCPv6 Solicit Packets Received | Number of solicit received statistics. |
| DHCPv6 Request Packets Received | Number of request received statistics. |
| DHCPv6 Confirm Packets Received | Number of confirm received statistics. |
| DHCPv6 Renew Packets Received | Number of renew received statistics. |
| DHCPv6 Rebind Packets Received | Number of rebind received statistics. |
| DHCPv6 Release Packets Received | Number of release received statistics. |
| DHCPv6 Decline Packets Received | Number of decline received statistics. |
| DHCPv6 Inform Packets Received | Number of inform received statistics. |
| DHCPv6 Relay-forward Packets Received | Number of relay forward received statistics. |
| DHCPv6 Relay-reply Packets Received | Number of relay-reply received statistics. |
| DHCPv6 Malformed Packets Received | Number of malformed packets statistics. |
| Received DHCPv6 Packets Discarded | Number of DHCP discarded statistics. |
| Total DHCPv6 Packets Received | Total number of DHCPv6 received statistics |
| DHCPv6 Advertisement Packets Transmitted | Number of advertise sent statistics. |
| DHCPv6 Reply Packets Transmitted | Number of reply sent statistics. |
| DHCPv6 Reconfig Packets Transmitted | Number of reconfigure sent statistics. |
| DHCPv6 Relay-reply Packets Transmitted | Number of relay-reply sent statistics. |
| DHCPv6 Relay-forward Packets Transmitted | Number of relay-forward sent statistics. |
| Total DHCPv6 Packets Transmitted | Total number of DHCPv6 sent statistics. |
show ipv6 dhcp interface
This command displays DHCPv6 information for all relevant interfaces or the specified interface. If you specify an interface, you can use the optional statistics parameter to view statistics for the specified interface.
Format show ipv6 dhcp interface
Mode Privileged EXEC
| Term Definition | |
| IPv6 Interface The interface name informat. | |
| Mode Shows whether the interface is a IPv6 DHCP relay or server. | |
If the interface mode is server, the following information displays.
| Term Definition | |
| Pool Name | The pool name specifying information for DHCPv6 server distribution to DHCPv6 clients. |
| Server Preference | The preference of the server. |
| Option Flags Shows whether rapid commit is enabled. | |
If the interface mode is relay, the following information displays.
| Term Definition | |
| Relay Address The IPv6 address of the relay server. | |
| Relay Interface Number | The relay server interface informat. |
| Relay Remote ID | If configured, shows the name of the relay remote. |
| Option Flags Shows whether rapid commit is configured. | |
If you use the statistics parameter, the command displays the IPv6 DHCP statistics for the specified interface. See “show ipv6 dhcp statistics” on page 7-73 for information about the output.
clear ipv6 dhcp
Use this command to clear DHCPv6 statistics for all interfaces or for a specific interface. Use the
Format clear ipv6 dhcp {statistics | interface
show ipv6 dhcp pool
This command displays configured DHCP pool.
Format show ipv6 dhcp pool
Mode Privileged EXEC
| Term Definition | |
| DHCP Pool Name | Unique pool name configuration. |
| Client DUID | Client's DHCP unique identifier. DUID is generated using the combination of the local system burned-in MAC address and a timestamp value. |
| Host Name of the | client. |
| Prefix/Prefix Length | IPv6 address and mask length for delegated prefix. |
| Preferred Lifetime | Preferred lifetime in seconds for delegated prefix. |
| Valid Lifetime Valid | valid lifetime in seconds for delegated prefix. |
| DNS Server Address | Address of DNS server address. |
| Domain Name DNS domain name. | |
show ipv6 dhcp binding
This command displays configured DHCP pool.
Format show ipv6 dhcp binding [
Mode Privileged EXEC
| Term Definition | |
| DHCP Client Address | Address of DHCP Client. |
| DUID String that represents the Client DUID. | |
| IAID Identity Association ID. | |
| Prefix/Prefix Length | IPv6 address and mask length for delegated prefix. |
| Prefix Type IPV6 | Prefix type (IAPD, IANA, or IATA). |
| Client Address Address of DHCP Client. | |
| Client Interface IPv6 Address of DHCP Client. | |
| Expiration Address of DNS server address. | |
| Valid Lifetime Valid lifetime in seconds for delegated prefix. | |
| Preferred Lifetime | Preferred lifetime in seconds for delegated prefix. |
Chapter 8
Quality of Service (QoS) Commands
This chapter describes the Quality of Service (QoS) commands available in the managed switch CLI.
The QoS Commands chapter contains the following sections:
- “Class of Service (CoS) Commands” on page 8-2
- “Differentiated Services (DiffServ) Commands” on page 8-8
- “DiffServ Class Commands” on page 8-10
- “DiffServ Policy Commands” on page 8-19
- “DiffServ Service Commands” on page 8-25
- “DiffServ Show Commands” on page 8-26
- “MAC Access Control List (ACL) Commands” on page 8-32
- “IP Access Control List (ACL) Commands” on page 8-37
- “IPv6 Access Control List (ACL) Commands” on page 8-44
- “Auto-Voice over IP Commands” on page 8-48

Note: The commands in this chapter are in one of two functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
Class of Service (CoS) Commands
This section describes the commands you use to configure and view Class of Service (CoS) settings for the switch. The commands in this section allow you to control the priority and transmission rate of traffic.

Note: Commands you issue in the Interface Config mode only affect a single interface. Commands you issue in the Global Config mode affect all interfaces.
classofservice dot1p-mapping
This command maps an 802.1p priority to an internal traffic class. The
Format classofservice dot1p-mapping
Modes • Global Config
- Interface Config
no classofservice dot1p-mapping
This command maps each 802.1p priority to its default internal traffic class value.
Format no classofservice dot1p-mapping
Modes • Global Config
- Interface Config
classofservice ip-dscp-mapping
This command maps an IP DSCP value to an internal traffic class. The
The
Format classofservice ip-dscp-mapping
Mode Global Config
no classofservice ip-dscp-mapping
This command maps each IP DSCP value to its default internal traffic class value.
Format no classofservice ip-dscp-mapping
Mode Global Config
classofservice trust
This command sets the class of service trust mode of an interface. You can set the mode to trust one of the Dot1p (802.1p), IP DSCP, or IP Precedence packet markings. You can also set the interface mode to untrusted. If you configure an interface to use Dot1p, the mode does not appear in the output of the show running config command because Dot1p is the default.

Note: The classofservice trust dot1p command will not be supported in future releases of the software because Dot1p is the default value. Use the no classofservice trust command to set the mode to the default value.
Default dot1p
Format classofservice trust {dot1p | ip-dscp | ip-precedence | untrusted}
Modes · Global Config
- Interface Config
no classofservice trust
This command sets the interface mode to the default value.
Format no classofservice trust
Modes • Global Config
- Interface Config
cos-queue min-bandwidth
This command specifies the minimum transmission bandwidth guarantee for each interface queue. The total number of queues supported per interface is platform specific. A value from 0-100 (percentage of link rate) must be specified for each supported queue, with 0 indicating no guaranteed minimum bandwidth. The sum of all values entered must not exceed 100.
Format cos-queue min-bandwidth
Modes • Global Config
- Interface Config
no cos-queue min-bandwidth
This command restores the default for each queue's minimum bandwidth value.
Format no cos-queue min-bandwidth
Modes • Global Config
- Interface Config
cos-queue strict
This command activates the strict priority scheduler mode for each specified queue.
Format cos-queue strict
Modes • Global Config
- Interface Config
no cos-queue strict
This command restores the default weighted scheduler mode for each specified queue.
Format no cos-queue strict
Modes · Global Config
- Interface Config
traffic-shape
This command specifies the maximum transmission bandwidth limit for the interface as a whole. Also known as rate shaping, traffic shaping has the effect of smoothing temporary traffic bursts over time so that the transmitted traffic rate is bounded.
Format traffic-shape
Modes • Global Config
- Interface Config
no traffic-shape
This command restores the interface shaping rate to the default value.
Format no traffic-shape
Modes • Global Config
- Interface Config
show classofservice dot1p-mapping
This command displays the current Dot1p (802.1p) priority mapping to internal traffic classes for a specific interface. The
Format show classofservice dot1p-mapping [
Mode Privileged EXEC
The following information is repeated for each user priority.
| Term Definition | |
| User Priority The | 802.1p user priority value. |
| Traffic Class | The traffic class internal queue identifier to which the user priority value is mapped. |
show classofservice ip-precedence-mapping
This command displays the current IP Precedence mapping to internal traffic classes for a specific interface. The unit/slot/port parameter is optional and is only valid on platforms that support independent per-port class of service mappings. If specified, the IP Precedence mapping table of the interface is displayed. If omitted, the most recent global configuration settings are displayed.
Format show classofservice ip-precedence-mapping [
Mode Privileged EXEC
The following information is repeated for each user priority.
| Term Definition | |
| IP Precedence The IP Precedence value. | |
| Traffic Class | The traffic class internal queue identifier to which the IP Precedence value is mapped. |
show classofservice ip-dscp-mapping
This command displays the current IP DSCP mapping to internal traffic classes for the global configuration settings.
Format show classofservice ip-dscp-mapping
Mode Privileged EXEC
The following information is repeated for each user priority.
| Term Definition | |
| IP DSCP The IP D | SCP value. |
| Traffic Class The | traffic class internal queue identifier to which the IP DSCP value is mapped. |
show classofservice trust
This command displays the current trust mode setting for a specific interface. The
Format show classofservice trust [
Mode Privileged EXEC
| Term Definition | |
| Non-IP Traffic Class | The traffic class used for non-IP traffic. This is only displayed when the COS trust mode is set to trust IP Precedence or IP DSCP (on platforms that support IP DSCP). |
| Untrusted Traffic Class | The traffic class used for all untrusted traffic. This is only displayed when the COS trust mode is set to 'untrusted'. |
show interfaces cos-queue
This command displays the class-of-service queue configuration for the specified interface. The unit/slot/port parameter is optional and is only valid on platforms that support independent per-port class of service mappings. If specified, the class-of-service queue configuration of the interface is displayed. If omitted, the most recent global configuration settings are displayed.
Format show interfaces cos-queue [
Mode Privileged EXEC
| Term Definition | |
| Queue Id | An interface supports n queues numbered 0 to (n-1). The specific n value is platform dependent. |
| Minimum Bandwidth | The minimum transmission bandwidth guarantee for the queue, expressed as a percentage. A value of 0 means bandwidth is not guaranteed and the queue operates using best-effort. This is a configured value. |
| Scheduler Type | Indicates whether this queue is scheduled for transmission using a strict priority or a weighted scheme. This is a configured value. |
| Queue Management Type | The queue depth management technique used for this queue (tail drop). |
If you specify the interface, the command also displays the following information.
| Term Definition | |
| Interface | The unit/slot/port of the interface. If displaying the global configuration, this output line is replaced with a Global Config indication. |
| Interface Shaping Rate | The maximum transmission bandwidth limit for the interface as a whole. It is independent of any per-queue maximum bandwidth value(s) in effect for the interface. This is a configured value. |
Differentiated Services (DiffServ) Commands
This section describes the commands you use to configure QOS Differentiated Services (DiffServ).
You configure DiffServ in several stages by specifying three DiffServ components:
- Class
a. Creating and deleting classes.
b. Defining match criteria for a class.
- Policy
a. Creating and deleting policies
b. Associating classes with a policy
c. Defining policy statements for a policy/class combination
- Service
a. Adding and removing a policy to/from an inbound interface
The DiffServ class defines the packet filtering criteria. The attributes of a DiffServ policy define the way the switch processes packets. You can define policy attributes on a per-class instance basis. The switch applies these attributes when a match occurs.
Packet processing begins when the switch tests the match criteria for a packet. The switch applies a policy to a packet when it finds a class match within that policy.
The following rules apply when you create a DiffServ class:
• Each class can contain a maximum of one referenced (nested) class
• Class definitions do not support hierarchical service policies
A given class definition can contain a maximum of one reference to another class. You can combine the reference with other match criteria. The referenced class is truly a reference and not a copy since additions to a referenced class affect all classes that reference it. Changes to any class definition currently referenced by any other class must result in valid class definitions for all derived classes, otherwise the switch rejects the change. You can remove a class reference from a class definition.
The only way to remove an individual match criterion from an existing class definition is to delete the class and re-create it.

Note: The mark possibilities for policing include CoS, IP DSCP, and IP Precedence. While the latter two are only meaningful for IP packet types, CoS marking is allowed for both IP and non-IP packets, since it updates the 802.1p user priority field contained in the VLAN tag of the layer 2 packet header.
diffserv
This command sets the DiffServ operational mode to active. While disabled, the DiffServ configuration is retained and can be changed, but it is not activated. When enabled, DiffServ services are activated.
Format diffserv
Mode Global Config
no diffserv
This command sets the DiffServ operational mode to inactive. While disabled, the DiffServ configuration is retained and can be changed, but it is not activated. When enabled, DiffServ services are activated.
Format no diffserv
Mode Global Config
DiffServ Class Commands
Use the DiffServ class commands to define traffic classification. To classify traffic, you specify Behavior Aggregate (BA), based on DSCP and Multi-Field (MF) classes of traffic (name, match criteria)
This set of commands consists of class creation/deletion and matching, with the class match commands specifying Layer 3, Layer 2, and general match criteria. The class match criteria are also known as class rules, with a class definition consisting of one or more rules to identify the traffic that belongs to the class.

Note: Once you create a class match criterion for a class, you cannot change or delete the criterion. To change or delete a class match criterion, you must delete and re-create the entire class.
The CLI command root is class-map.
class-map
This command defines a DiffServ class of type match-all. When used without any match condition, this command enters the class-map mode. The

Note: The class-map-name 'default' is reserved and must not be used.
The class type of match-all indicates all of the individual match conditions must be true for a packet to be considered a member of the class. This command may be used without specifying a class type to enter the Class-Map Config mode for an existing DiffServ class.

Note: The optional keywords [{ipv4 | ipv6}] specify the Layer 3 protocol for this class. If not specified, this parameter defaults to `ipv4`. This maintains backward compatibility for configurations defined on systems before IPv6 match items were supported.

Note: The CLI mode is changed to Class-Map Config or IPv6-Class-Map Config when this command is successfully executed depending on the [{ipv4 | ipv6}] keyword specified.
Format class-map match-all
Mode Global Config
no class-map
This command eliminates an existing DiffServ class. The
Format no class-map
Mode Global Config
class-map rename
This command changes the name of a DiffServ class. The
Default none
Format class-map rename
Mode Global Config
match ethertype
This command adds to the specified class definition a match condition based on the value of the ethertype. The
Format match ethertype {
Mode Class-Map Config lpv6-Class-Map Config
match any
This command adds to the specified class definition a match condition whereby all packets are considered to belong to the class.
Default none
Format match any
Mode Class-Map Config lpv6-Class-Map Config
match class-map
This command adds to the specified class definition the set of match conditions defined for another class. The
Default none
Format match class-map
Mode Class-Map Config lpv6-Class-Map Config

Note:
- The parameters
and can not be the same. - Only one other class may be referenced by a class.
- Any attempts to delete the
class while the class is still referenced by any fails. - The combined match criteria of
and must be an allowed combination based on the class type. - Any subsequent changes to the
class match criteria must maintain this validity, or the change attempt fails. - The total number of class rules formed by the complete reference class chain (including both predecessor and successor classes) must not exceed a platform-specific maximum. In some cases, each removal of a refclass rule reduces the maximum number of available rules in the class definition by one.
no match class-map
This command removes from the specified class definition the set of match conditions defined for another class. The
Format no match class-map
Mode Class-Map Config
Ipv6-Class-Map Config
match cos
This command adds to the specified class definition a match condition for the Class of Service value (the only tag in a single tagged packet or the first or outer 802.1Q tag of a double VLAN tagged packet). The value may be from 0 to 7.
Default none
Format match cos <0-7>
Mode Class-Map Config
Ipv6-Class-Map Config
match ip6flowlbl
This command adds to the specified class definition a match condition based on the IP6flowlbl of a packet. The label is the value to match in the Flow Label field of the IPv6 header (range 0-1048575).
Format match ip6flowlbl
Mode lpv6-Class-Map Configuration mode
match destination-address mac
This command adds to the specified class definition a match condition based on the destination MAC address of a packet. The

Note: This command is not available on the GSM73xxSv1 platform.
Default none
Format match destination-address mac
Mode Class-Map Config Ipv6-Class-Map Config
match dstip
This command adds to the specified class definition a match condition based on the destination IP address of a packet. The
Default none
Format match dstip
Mode Class-Map Config
match dstip6
This command adds to the specified class definition a match condition based on the destination IPv6 address of a packet.
Default none
Format match dstip6
Mode lpv6-Class-Map Config
match dstl4port
This command adds to the specified class definition a match condition based on the destination layer 4 port of a packet using a single keyword or numeric notation. To specify the match condition as a single keyword, the value for
Default none
Format match dst14port {
Mode Class-Map Config Ipv6-Class-Map Config
match ip dscp
This command adds to the specified class definition a match condition based on the value of the IP DiffServ Code Point (DSCP) field in a packet, which is defined as the high-order six bits of the Service Type octet in the IP header (the low-order two bits are not checked).
The

Note: The ip dscp, ip precedence, and ip tos match conditions are alternative ways to specify a match criterion for the same Service Type field in the IP header, but with a slightly different user notation.
Default none
Format match ip dscp
Mode Class-Map Config Ipv6-Class-Map Config
match ip precedence
This command adds to the specified class definition a match condition based on the value of the IP Precedence field in a packet, which is defined as the high-order three bits of the Service Type octet in the IP header (the low-order five bits are not checked). The precedence value is an integer from 0 to 7.

Note: The IP DSCP, IP Precedence, and IP ToS match conditions are alternative ways to specify a match criterion for the same Service Type field in the IP header, but with a slightly different user notation.
Default none
Format match ip precedence <0-7>
Mode Class-Map Config
match ip tos
This command adds to the specified class definition a match condition based on the value of the IP TOS field in a packet, which is defined as all eight bits of the Service Type octet in the IP header. The value of

Note: The IP DSCP, IP Precedence, and IP ToS match conditions are alternative ways to specify a match criterion for the same Service Type field in the IP header, but with a slightly different user notation.

Note: This “free form” version of the IP DSCP/Precedence/TOS match specification gives the user complete control when specifying which bits of the IP Service Type field are checked.
Default none
Format match ip tos
Mode Class-Map Config
match protocol
This command adds to the specified class definition a match condition based on the value of the IP Protocol field in a packet using a single keyword notation or a numeric value notation.
To specify the match condition using a single keyword notation, the value for
To specify the match condition using a numeric value notation, the protocol number is a standard value assigned by IANA and is interpreted as an integer from 0 to 255.

Note: This command does not validate the protocol number value against the current list defined by IANA.
Default none
Format match protocol {
Mode Class-Map Config lpv6-Class-Map Config
match source-address mac
This command adds to the specified class definition a match condition based on the source MAC address of a packet. The
parameter is any layer 2 MAC address formatted as six, two-digit hexadecimal numbers separated by colons (e.g., 00:11:22:dd:ee:ff). TheDefault none
Format match source-address mac
Mode Class-Map Config lpv6-Class-Map Config
match srcip
This command adds to the specified class definition a match condition based on the source IP address of a packet. The
Default none
Format match srcip
Mode Class-Map Config
match srcip6
This command adds to the specified class definition a match condition based on the source IP address of a packet.
Default none
Format match srcip6
Mode lpv6-Class-Map Config
match srcl4port
This command adds to the specified class definition a match condition based on the source layer 4 port of a packet using a single keyword or numeric notation. To specify the match condition as a single keyword notation, the value for
(listed below). The currently supported
To specify the match condition as a numeric value, one layer 4 port number is required. The port number is an integer from 0 to 65535.
Default none
Format match srcl4port {
Mode Class-Map Config Ipv6-Class-Map Config
DiffServ Policy Commands
Use the DiffServ policy commands to specify traffic conditioning actions, such as policing and marking, to apply to traffic classes
Use the policy commands to associate a traffic class that you define by using the class command set with one or more QoS policy attributes. Assign the class/policy association to an interface to form a service. Specify the policy name when you create the policy.
Each traffic class defines a particular treatment for packets that match the class definition. You can associate multiple traffic classes with a single policy. When a packet satisfies the conditions of more than one class, preference is based on the order in which you add the classes to the policy. The first class you add has the highest precedence.
This set of commands consists of policy creation/deletion, class addition/removal, and individual policy attributes.

Note: The only way to remove an individual policy attribute from a class instance within a policy is to remove the class instance and re-add it to the policy. The values associated with an existing policy attribute can be changed without removing the class instance.
The CLI command root is policy-map.
assign-queue
This command modifies the queue id to which the associated traffic stream is assigned. The queueid is an integer from 0 to n-1, where n is the number of egress queues supported by the device.
Format assign-queue
Mode Policy-Class-Map Config
Incompatibilities Drop
drop
This command specifies that all packets for the associated traffic stream are to be dropped at ingress.
Format drop
Mode Policy-Class-Map Config
Incompatibilities Assign Queue, Mark (all forms), Mirror, Police, Redirect
mirror
This command specifies that all incoming packets for the associated traffic stream are copied to a specific egress interface (physical port or LAG).

Note: This command is not available on the GSM7328Sv1or GSM7352Sv1 platforms.
Format mirror
Mode Policy-Class-Map Config
Incompatibilities Drop, Redirect
redirect
This command specifies that all incoming packets for the associated traffic stream are redirected to a specific egress interface (physical port or port-channel).
| Note: This command is not available on the GSM7328Sv1 or GSM7352Sv1 platforms. |
Format redirect
Mode Policy-Class-Map Config
Incompatibilities Drop, Mirror
conform-color
Use this command to enable color-aware traffic policing and define the conform-color class map. Used in conjunction with the police command where the fields for the conform level are specified. The
| Note: This command may only be used after specifying a police command for the policy-class instance. |
Format conform-color
Mode Policy-Class-Map Config
class
This command creates an instance of a class definition within the specified policy for the purpose of defining treatment of the traffic class through subsequent policy attribute statements. The
| Note: This command causes the specified policy to create a reference to the class definition. |

Note: The CLI mode is changed to Policy-Class-Map Config when this command is successfully executed.
Format class
Mode Policy-Map Config
no class
This command deletes the instance of a particular class and its defined treatment from the specified policy.

Note: This command removes the reference to the class definition for the specified policy.
Format no class
Mode Policy-Map Config
mark cos
This command marks all packets for the associated traffic stream with the specified class of service value in the priority field of the 802.1p header (the only tag in a single tagged packet or the first or outer 802.1Q tag of a double VLAN tagged packet). If the packet does not already contain this header, one is inserted. The CoS value is an integer from 0 to 7.mark ip-dscp
Default 1
Format mark-cos <0-7>
Mode Policy-Class-Map Config
Incompatibilities Drop, Mark IP DSCP, IP Precedence, Police
mark ip-dscp
This command marks all packets for the associated traffic stream with the specified IP DSCP value.
The
Format mark ip-dscp
Mode Policy-Class-Map Config
Incompatibilities Drop, Mark CoS, Mark IP Precedence, Police
mark ip-precedence
This command marks all packets for the associated traffic stream with the specified IP Precedence value. The IP Precedence value is an integer from 0 to 7.

Note: This command may not be used on IPv6 classes. IPv6 does not have a precedence field.
Format mark ip-precedence <0-7>
Mode Policy-Class-Map Config
Incompatibilities Drop, Mark CoS, Mark IP Precedence, Police
Policy Type In
police-simple
This command is used to establish the traffic policing style for the specified class. The simple form of the police command uses a single data rate and burst size, resulting in two outcomes: conform and violate. The conforming data rate is specified in kilobits-per-second (Kbps) and is an integer from 1 to 4294967295. The conforming burst size is specified in kilobytes (KB) and is an integer from 1 to 128.
For each outcome, the only possible actions are drop, set-cos-transmit, set-dscp-transmit, set-prec-transmit, or transmit. In this simple form of the police command, the conform action defaults to transmit and the violate action defaults to drop.
For set-dscp-transmit, a
For set-prec-transmit, an IP Precedence value is required and is specified as an integer from 0-7.
For set-cos-transmit an 802.1p priority value is required and is specified as an integer from 0-7.
Format
police-simple {<1-4294967295> <1-128> conform-action {drop | set-prec-transmit <0-7> | set-dscp-transmit <0-63> | set-cos-transmit <0-7> | transmit} [violate-action {drop | set-prec-transmit <0-7> | set-dscp-transmit <0-63> | set-cos-transmit <0-7> | transmit]}
Mode Policy-Class-Map Config
Incompatibilities Drop, Mark (all forms)
policy-map
This command establishes a new DiffServ policy. The

Note: The CLI mode is changed to Policy-Map Config when this command is successfully executed..
Format policy-map
Mode Global Config
no policy-map
This command eliminates an existing DiffServ policy. The
Format no policy-map
Mode Global Config
policy-map rename
This command changes the name of a DiffServ policy. The
Format policy-map rename
Mode Global Config
DiffServ Service Commands
Use the DiffServ service commands to assign a DiffServ traffic conditioning policy, which you specified by using the policy commands, to an interface in the incoming direction
The service commands attach a defined policy to a directional interface. You can assign only one policy at any one time to an interface in the inbound direction. DiffServ is not used in the outbound direction.
This set of commands consists of service addition/removal.
The CLI command root is service-policy.
service-policy
This command attaches a policy to an interface in the inbound direction. The

Note: This command effectively enables DiffServ on an interface in the inbound direction. There is no separate interface administrative 'mode' command for DiffServ.

Note: This command fails if any attributes within the policy definition exceed the capabilities of the interface. Once a policy is successfully attached to an interface, any attempt to change the policy definition, that would result in a violation of the interface capabilities, causes the policy change attempt to fail.
Format service-policy in
Modes • Global Config
- Interface Config

Note: Each interface can have one policy attached.
no service-policy
This command detaches a policy from an interface in the inbound direction. The

Note: This command causes a service to remove its reference to the policy. This command effectively disables DiffServ on an interface in the inbound direction. There is no separate interface administrative 'mode' command for DiffServ.
Format no service-policy in
Modes • Global Config
- Interface Config
DiffServ Show Commands
Use the DiffServ show commands to display configuration and status information for classes, policies, and services. You can display DiffServ information in summary or detailed formats. The status information is only shown when the DiffServ administrative mode is enabled.
show class-map
This command displays all configuration information for the specified class. The
Format show class-map
Modes • Privileged EXEC
- User EXEC
If the class-name is specified the following fields are displayed:
| Term Definition | |
| Class Name The name of this class. | |
| Class Type | A class type of ‘all’ means every match criterion defined for the class is evaluated simultaneously and must all be true to indicate a class match. |
| Class Layer3 Protocol | The Layer 3 protocol for this class. Possible values are IPv4 and IPv6. |
| Match Criteria | The Match Criteria fields are only displayed if they have been configured. Not all platforms support all match criteria values. They are displayed in the order entered by the user. The fields are evaluated in accordance with the class type. The possible Match Criteria fields are: Destination IP Address, Destination Layer 4 Port, Destination MAC Address, Ethertype, Source MAC Address, VLAN, Class of Service, Every, IP DSCP, IP Precedence, IP TOS, Protocol Keyword, Reference Class, Source IP Address, and Source Layer 4 Port. |
| Values The values of the Match Criteria. | |
If you do not specify the Class Name, this command displays a list of all defined DiffServ classes. The following fields are displayed:
| Term Definition | |
| Class Name The name of this class. (Note that the order in which classes are displayed is not necessarily the same order in which they were created.) | |
| Class Type | A class type of ‘all’ means every match criterion defined for the class is evaluated simultaneously and must all be true to indicate a class match. |
| Reference Class Name | The name of an existing DiffServ class whose match conditions are being referenced by the specified class definition. |
show diffserv
This command displays the DiffServ General Status Group information, which includes the current administrative mode setting as well as the current and maximum number of rows in each of the main DiffServ private MIB tables. This command takes no options.
Format show diffserv
Mode Privileged EXEC
| Term Definition | |
| DiffServ Admin mode The current value of the DiffServ administrative mode. | |
| Class Table Size Current /Max | The current number of entries (rows) and the maximum allowed entries (rows) in the Class Table. |
| Class Rule Table Size Current /Max | The current number of entries (rows) and the maximum allowed entries(rows) in the Class Rule Table. |
| Policy Table Size Current /Max | The current number of entries (rows) and the maximum allowed entries(rows) in the Policy Table. |
| Policy Instance Table Size Current /Max | Current number of entries (rows) and the maximum allowed entries(rows) in the Policy Instance Table. |
| Policy Attribute Table Size Current /Max | Current number of entries (rows) and the maximum allowed entries(rows) in the Policy Attribute Table. |
| Service Table Size Current /Max | The current number of entries (rows) i and the maximum allowed entries(rows) in the Service Table. |
show policy-map
This command displays all configuration information for the specified policy. The
Format show policy-map [policyname]
Mode Privileged EXEC
If the Policy Name is specified the following fields are displayed:
| Term Definition | |
| Policy Name The | name of this policy. |
| Policy Type The p | policy type (Only inbound policy definitions are supported for this platform.) |
The following information is repeated for each class associated with this policy (only those policy attributes actually configured are displayed):
| Term Definition | |
| Assign Queue | Directs traffic stream to the specified QoS queue. This allows a traffic classifier to specify which one of the supported hardware queues are used for handling packets belonging to the class. |
| Class Name The name of this class. | |
| Committed Burst Size (KB) | The committed burst size, used in simple policing. |
| Committed Rate (Kbps) | The committed rate, used in simple policing, |
| Conform Action | The current setting for the action taken on a packet considered to conform to the policing parameters. This is not displayed if policing is not in use for the class under this policy. |
| Conform COS The | CoS mark value if the conform action is set-cos-transmit. |
| Conform DSCP Value | The DSCP mark value if the conform action is set-dscp-transmit. |
| Conform IP Precedence Value | The IP Precedence mark value if the conform action is set-prec-transmit. |
| Drop | Drop a packet upon arrival. This is useful for emulating access control list operation using DiffServ, especially when DiffServ and ACL cannot co-exist on the same interface. |
| Mark CoS | The class of service value that is set in the 802.1p header of inbound packets. This is not displayed if the mark cos was not specified. |
| Mark IP DSCP | The mark/re-mark value used as the DSCP for traffic matching this class. This is not displayed if mark ip description is not specified. |
| Mark IP Precedence | The mark/re-mark value used as the IP Precedence for traffic matching this class. This is not displayed if mark ip precedence is not specified. |
| Mirror | Copies a classified traffic stream to a specified egress port (physical port or LAG). This can occur in addition to any marking or policing action. It may also be specified along with a QoS queue assignment. This field does not display on GSM7328S and GSM7352S platforms. |
| Non-Conform Action | The current setting for the action taken on a packet considered to not conform to the policing parameters. This is not displayed if policing not in use for the class under this policy. |
| Non-Conform COS | The CoS mark value if the non-conform action is set-cos-transmit. |
| Non-Conform DSCP Value | The DSCP mark value if the non-conform action is set-dscp-transmit. |
| Non-Conform IP Precedence Value | The IP Precedence mark value if the non-conform action is set-prec-transmit. |
| Policing Style The style of policing, if any, used (simple). | |
| Redirect | Forces a classified traffic stream to a specified egress port (physical port or LAG). This can occur in addition to any marking or policing action. It may also be specified along with a QoS queue assignment. This field does not display on GSM7328v1 and GSM7352Sv2 platforms. |
If the Policy Name is not specified this command displays a list of all defined DiffServ policies. The following fields are displayed:
| Term | Definition |
| Policy Name | The name of this policy. (The order in which the policies are displayed is not necessarily the same order in which they were created.) |
| Policy Type The policy type (Only inbound is supported). | |
| Class Members List of all class names associated with this policy. | |
show diffserv service
This command displays policy service information for the specified interface and direction. The
Format show diffserv service
Mode Privileged EXEC
| Term Definition | |
| DiffServ Admin Mode | The current setting of the DiffServ administrative mode. An attached policy is only in effect on an interface while DiffServ is in an enabled mode. |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Direction The traffic direction of this interface service. | |
| Operational Status | The current operational status of this DiffServ service interface. |
| Policy Name The name of the policy attached to the interface in the indicated direction. | |
| Policy Details | Attached policy details, whose content is identical to that described for the show policy-mapcommand (content not repeated here for brevity). |
show diffserv service brief
This command displays all interfaces in the system to which a DiffServ policy has been attached. The inbound direction parameter is optional.
Format show diffserv service brief [in]
Mode Privileged EXEC
| Term Definition | |
| DiffServ Admin Mode | The current setting of the DiffServ administrative mode. An attached policy is only active on an interface while DiffServ is in an enabled mode. |
The following information is repeated for interface and direction (only those interfaces configured with an attached policy are shown):
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Direction The traffic direction of this interface service. | |
| OperStatus The current operational status of this DiffServ service interface. | |
| Policy Name The name of the policy attached to the interface in the indicated direction. | |
show policy-map interface
This command displays policy-oriented statistics information for the specified interface and direction. The
| Note: This command is only allowed while the DiffServ administrative mode is enabled. |
Format show policy-map interface
Mode Privileged EXEC
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Direction The traffic direction of this interface service. | |
| Operational Status | The current operational status of this DiffServ service interface. |
| Policy Name The name of the policy attached to the interface in the indicated direction. | |
The following information is repeated for each class instance within this policy:
| Term Definition | |
| Class Name The name of this class instance. | |
| In Discarded Packets | A count of the packets discarded for this class instance for any reason due to DiffServ treatment of the traffic class. |
show service-policy
This command displays a summary of policy-oriented statistics information for all interfaces in the specified direction.
Format show service-policy in
Mode Privileged EXEC
The following information is repeated for each interface and direction (only those interfaces configured with an attached policy are shown):
| Term Definition | |
| Interface Valid unit, slot, and port number separated by forward slashes. | |
| Operational Status | The current operational status of this DiffServ service interface. |
| Policy Name The name of the policy attached to the interface. | |
MAC Access Control List (ACL) Commands
This section describes the commands you use to configure MAC ACL settings. MAC ACLs ensure that only authorized users have access to specific resources and block any unwarranted attempts to reach network resources.
The following rules apply to MAC ACLs:
- The maximum number of ACLs you can create is hardware dependent. The limit applies to all ACLs, regardless of type.
- The system supports only Ethernet II frame types.
- The maximum number of rules per MAC ACL is hardware dependent.
- For the GSM7328Sv1, GSM7352Sv1, and GSM7328FS, if you configure an IP ACL on an interface, you cannot configure a MAC ACL on the same interface.
mac access-list extended
This command creates a MAC Access Control List (ACL) identified by
If a MAC ACL by this name already exists, this command enters Mac-Access-List config mode to allow updating the existing MAC ACL.

Note: The CLI mode changes to Mac-Access-List Config mode when you successfully execute this command.
Format mac access-list extended
Mode Global Config
no mac access-list extended
This command deletes a MAC ACL identified by
Format no mac access-list extended
Mode Global Config
mac access-list extended rename
This command changes the name of a MAC Access Control List (ACL). The
This command fails if a MAC ACL by the name
Format mac access-list extended rename
Mode Global Config
{deny | permit} (MAC ACL)
This command creates a new rule for the current MAC access list. Each rule is appended to the list of configured rules for the list.

Note: The 'no' form of this command is not supported, since the rules within a MAC ACL cannot be deleted individually. Rather, the entire MAC ACL must be deleted and re-specified.

Note: An implicit 'deny all' MAC rule always terminates the access list.
A rule may either deny or permit traffic according to the specified classification fields. At a minimum, the source and destination MAC value must be specified, each of which may be substituted using the keyword any to indicate a match on any value in that field. The remaining command parameters are all optional, but the most frequently used parameters appear in the same relative order as shown in the command format.
The Ethertype may be specified as either a keyword or a four-digit hexadecimal value from 0x0600-0xFFFF. The currently supported
| Ethertype Keyword Corresponding Value | |
| appletalk 0x809B | |
| arp 0x0806 | |
| ibmsna 0x80D5 | |
| ipv4 0x0800 | |
| ipv6 0x86DD | |
| ipx 0x8037 | |
| mplsmcast 0x8848 | |
| mplsucast 0x8847 | |
| netbios 0x8191 | |
| novell 0x8137, 0x8138 | |
| pppoe 0x8863, 0x8864 | |
| rarp 0x8035 | |
The vlan and cos parameters refer to the VLAN identifier and 802.1p user priority fields, respectively, of the VLAN tag. For packets containing a double VLAN tag, this is the first (or outer) tag.
The assign-queue parameter allows specification of a particular hardware queue for handling traffic that matches this rule. The allowed

Note: The special command form {deny | permit} any any is used to match all Ethernet layer 2 packets, and is the equivalent of the IP access list “match every” rule.
Format {deny|permit} {<srcmac> | any} {<dstmac> | any} [<ethertypekey> | <0x0600-0xFFFF>] [vlan {eq <0-4095>}] [cos <0-7>] [[log] [assign-queue <queue-id>]] [{mirror | redirect} <unit/slot/port>]
Mode Mac-Access-List Config
mac access-group
This command either attaches a specific MAC Access Control List (ACL) identified by
An optional sequence number may be specified to indicate the order of this mac access list relative to other mac access lists already assigned to this interface and direction. A lower number indicates higher precedence order. If a sequence number is already in use for this interface and direction, the specified mac access list replaces the currently attached mac access list using that sequence number. If the sequence number is not specified for this command, a sequence number that is one greater than the highest sequence number currently in use for this interface and direction is used.
This command specified in 'Interface Config' mode only affects a single interface, whereas the 'Global Config' mode setting is applied to all interfaces. The VLAN keyword is only valid in the 'Global Config' mode. The 'Interface Config' mode command is only available on platforms that support independent per-port class of service queue configuration.

Note: You should be aware that the
Format mac access-group
Modes • Global Config
- Interface Config
no mac access-group
This command removes a MAC ACL identified by
Format no mac access-group
Modes • Global Config
- Interface Config
show mac access-lists
This command displays a MAC access list and all of the rules that are defined for the MAC ACL. Use the [name] parameter to identify a specific MAC ACL to display.
Format show mac access-lists [name]
Mode Privileged EXEC
| Term Definition | |
| Rule Number The | ordered rule number identifier defined within the MAC ACL. |
| Action The action | associated with each rule. The possible values are Permit or Deny. |
| Source MAC Address | The source MAC address for this rule. |
| Destination MAC Address | The destination MAC address for this rule. |
| Ethertype The Eth | ertype keyword or custom value for this rule. |
| VLAN ID The VLAN | identifier value or range for this rule. |
| COS The COS (80 | 2.1p) value for this rule. |
| Log Displays when | you enable logging for the rule. |
| Assign Queue The | queue identifier to which packets matching this rule are assigned. |
| Mirror Interface The | unit/slot/port to which packets matching this rule are copied. |
| Redirect Interface | The unit/slot/port to which packets matching this rule are forwarded. |
IP Access Control List (ACL) Commands
This section describes the commands you use to configure IP ACL settings. IP ACLs ensure that only authorized users have access to specific resources and block any unwarranted attempts to reach network resources.
The following rules apply to IP ACLs:
- Managed switch software does not support IP ACL configuration for IP packet fragments.
- The maximum number of ACLs you can create is hardware dependent. The limit applies to all ACLs, regardless of type.
- The maximum number of rules per IP ACL is hardware dependent.
- On GSM7328S v1 and GSM7352S v1 platforms, if you configure a MAC ACL on an interface, you cannot configure an IP ACL on the same interface.
- Wildcard masking for ACLs operates differently from a subnet mask. A wildcard mask is in essence the inverse of a subnet mask. With a subnet mask, the mask has ones (1's) in the bit positions that are used for the network address, and has zeros (0's) for the bit positions that are not used. In contrast, a wildcard mask has (0's) in a bit position that must be checked. A '1' in a bit position of the ACL mask indicates the corresponding bit can be ignored.
access-list
This command creates an IP Access Control List (ACL) that is identified by the access list number, which is 1-99 for standard ACLs or 100-199 for extended ACLs.
IP Standard ACL:
Format access-list <1-99> {deny | permit} {every |
Mode Global Config
IP Extended ACL:
Format access-list <100-199> {deny | permit} {every | {{icmp | igmp | ip | tcp | udp | <number>} <srcip> <srcmask>[eq {<portkey> | <0-65535>} <dstip> <dstmask> [{eq {<portkey> | <0-65535>}] [precedence <precedence> | tos <tos> <tosmask> | dscp <dscp>] [log] [assign-queue <queue-id>] [{mirror | redirect} <unit/slot/port>]
Mode Global Config
| Parameter Description | |
| <1-99> or <100-199> | Range 1 to 99 is the access list number for an IP standard ACL. Range 100 to 199 is the access list number for an IP extended ACL. |
| {deny | permit} Specifies whether the IP ACL rule permits or denies an action. | |
| every Match every packet | |
| {icmp | igmp | ip | tcp | udp |} | Specifies the protocol to filter for an extended IP ACL rule. |
| Source IP address and source netmask for match condition of the IP ACL rule. | |
| [{eq {|<0-65535>}]} | Specifies the source layer 4 port match condition for the IP ACL rule. You can use the port number, which ranges from 0-65535, or you specify the, which can be one of the following keywords: domain, echo, ftp, ftpdata, http, smtp, snmp, telnet, tftp, and www. Each of these keywords translates into its equivalent port number, which is used as both the start and end of a port range. |
| Specifies a destination IP address and netmask for match condition of the IP ACL rule. | |
| [precedence|tos| dscp] | Specifies the TOS for an IP ACL rule depending on a match of precedence or DSCP values using the parameters dscp, precedence, tos/tosmask. |
| [log] Specifies that this rule is to be logged. | |
| [assign-queue] | Specifies the assign-queue, which is the queue identifier to which packets matching this rule are assigned. |
| [{mirror | redirect}] | Specifies the mirror or redirect interface which is the unit/slot/port to which packets matching this rule are copied or forwarded, respectively. The mirror and redirect parameters are not available on the GSM7328Sv1 and GSM7352Sv1 platforms. |
no access-list
This command deletes an IP ACL that is identified by the parameter
Format no access-list
Mode Global Config
ip access-list
This command creates an extended IP Access Control List (ACL) identified by
If an IP ACL by this name already exists, this command enters IPv4-Access_List config mode to allow updating the existing IP ACL.

Note: The CLI mode changes to IPv4-Access-List Config mode when you successfully execute this command.
Format ip access-list
Mode Global Config
no ip access-list
This command deletes the IP ACL identified by
Format no ip access-list
Mode Global Config
ip access-list rename
This command changes the name of an IP Access Control List (ACL). The
This command fails is an IP ACL by the name
Format ip access-list rename
Mode Global Config
{deny | permit} (IP ACL)
This command creates a new rule for the current IP access list. Each rule is appended to the list of configured rules for the list.
| Note: The 'no' form of this command is not supported, since the rules within an IP ACL cannot be deleted individually. Rather, the entire IP ACL must be deleted and re-specified. |
| Note: An implicit 'deny all' IP rule always terminates the access list. |
| Note: For the GSM7328Sv1 and GSM7352Sv1, the mirror and redirect parameters are not available. |
| Note: For the GSM7328Sv2 and GSM7352Sv2-based systems, the mirror parameter allows the traffic matching this rule to be copied to the specified, while the redirect parameter allows the traffic matching this rule to be forwarded to the specified. The assign-queue and redirect parameters are only valid for a permit rule. |
A rule may either deny or permit traffic according to the specified classification fields. At a minimum, either the every keyword or the protocol, source address, and destination address values must be specified. The source and destination IP address fields may be specified using the
keyword ‘any’ to indicate a match on any value in that field. The remaining command parameters are all optional, but the most frequently used parameters appear in the same relative order as shown in the command format.
The assign-queue parameter allows specification of a particular hardware queue for handling traffic that matches this rule. The allowed
Format {deny | permit} {every | {{icmp | igmp | ip | tcp | udp | <number>}
<srcip> <srcmask>[eq {<portkey> | <0-65535>} <dstip> <dstmask> [eq {<portkey> | <0-65535>}] [precedence <precedence> | tos <tos> <tosmask> | dscp <dscp>] [log] [assign-queue <queue-id>] [{mirror | redirect} <unit/slot/port>]
Mode lpv4-Access-List Config
ip access-group
This command either attaches a specific IP ACL identified by
An optional sequence number may be specified to indicate the order of this IP access list relative to other IP access lists already assigned to this interface and direction. A lower number indicates higher precedence order. If a sequence number is already in use for this interface and direction, the specified access list replaces the currently attached IP access list using that sequence number. If the sequence number is not specified for this command, a sequence number that is one greater than the highest sequence number currently in use for this interface and direction is used.

Note: You should be aware that the
Default none
Format ip access-group
Modes · Interface Config
- Global Config
no ip access-group
This command removes a specified IP ACL from an interface.
Default none
Format no ip access-group
Mode · Interface Config
- Global Config
acl-trapflags
This command enables the ACL trap mode.
Default disabled
Format acl-trapflags
Mode Global Config
no acl-trapflags
This command disables the ACL trap mode.
Format no acl-trapflags
Mode Global Config
show ip access-lists
This command displays an IP ACL
Format show ip access-lists
Mode Privileged EXEC

Note: Only the access list fields that you configure are displayed.
| Term Definition | |
| Rule Number The | number identifier for each rule that is defined for the IP ACL. |
| Action The action | associated with each rule. The possible values are Permit or Deny. |
| Match All | Indicates whether this access list applies to every packet. Possible values are True or False. |
| Protocol The protocol to filter for this rule. | |
| Source IP Address | The source IP address for this rule. |
| Source IP Mask The source IP Mask for this rule. | |
| Source L4 Port Keyword | The source port for this rule. |
| Destination IP Address | The destination IP address for this rule. |
| Destination IP Mask | The destination IP Mask for this rule. |
| Destination L4 Port Keyword | The destination port for this rule. |
| IP DSCP The value specified for IP DSCP. | |
| IP Precedence The value specified IP Precedence. | |
| IP TOS The value specified for IP TOS. | |
| Log Displays when you enable logging for the rule. | |
| Assign Queue The queue identifier to which packets matching this rule are assigned. | |
| Mirror Interface The unit/slot/port to which packets matching this rule are copied. | |
| Redirect Interface | The unit/slot/port to which packets matching this rule are forwarded. |
show access-lists
This command displays IP ACLs, IPv6 ACLs, and MAC access control lists information for a designated interface and direction.
Format show access-lists interface
Mode Privileged EXEC
| Term Definition | |
| ACL Type Type of | access list (IP, IPv6, or MAC). |
| ACL ID | Access List name for a MAC or IPv6 access list or the numeric identifier for an IP access list. |
| Sequence Number | An optional sequence number may be specified to indicate the order of this access list relative to other access lists already assigned to this interface and direction. A lower number indicates higher precedence order. If a sequence number is already in use for this interface and direction, the specified access list replaces the currently attached access list using that sequence number. If the sequence number is not specified by the user, a sequence number that is one greater than the highest sequence number currently in use for this interface and direction is used. Valid range is (1 to 4294967295). |
IPv6 Access Control List (ACL) Commands
This section describes the commands you use to configure IPv6 ACL settings. IPv6 ACLs ensure that only authorized users have access to specific resources and block any unwarranted attempts to reach network resources.
The following rules apply to IPv6 ACLs:
- The maximum number of ACLs you create is 100, regardless of type.
- The system supports only Ethernet II frame types.
- The maximum number of rules per IPv6 ACL is hardware dependent.
| Note: The IPv6 ACL is not available on the GSM7328Sv1 or GSM7352Sv1. |
ipv6 access-list
This command creates an IPv6 Access Control List (ACL) identified by
If an IPv6 ACL by this name already exists, this command enters IPv6-Access-List config mode to allow updating the existing IPv6 ACL.

Note: The CLI mode changes to IPv6-Access-List Config mode when you successfully execute this command.
Format ipv6 access-list
Mode Global Config
no ipv6 access-list
This command deletes the IPv6 ACL identified by
Format no ipv6 access-list
Mode Global Config
ipv6 access-list rename
This command changes the name of an IPv6 ACL. The
This command fails is an IPv6 ACL by the name
Format ipv6 access-list rename
Mode Global Config
{deny | permit} (IPv6)
This command creates a new rule for the current IPv6 access list. Each rule is appended to the list of configured rules for the list.

Note: The ‘no’ form of this command is not supported, since the rules within an IPv6 ACL cannot be deleted individually. Rather, the entire IPv6 ACL must be deleted and respecified.

Note: An implicit ‘deny all’ IPv6 rule always terminates the access list.
A rule may either deny or permit traffic according to the specified classification fields. At a minimum, either the 'every' keyword or the protocol, source address, and destination address values must be specified. The source and destination IPv6 address fields may be specified using the keyword 'any' to indicate a match on any value in that field. The remaining command parameters are all optional, but the most frequently used parameters appear in the same relative order as shown in the command format.
The assign-queue parameter allows specification of a particular hardware queue for handling traffic that matches this rule. The allowed
The mirror parameter allows the traffic matching this rule to be copied to the specified
Format {deny | permit} {every | {{icmp | igmp | ipv6 | tcp | udp | <number>}[log] [assign-queue <queue-id>] [{mirror | redirect} <unit/slot/port>]
Mode IPv6-Access-List Config
ipv6 traffic-filter
This command either attaches a specific IPv6 ACL identified by
An optional sequence number may be specified to indicate the order of this mac access list relative to other IPv6 access lists already assigned to this interface and direction. A lower number indicates higher precedence order. If a sequence number is already in use for this interface and direction, the specifiedIPv6 access list replaces the currently attached IPv6 access list using that sequence number. If the sequence number is not specified for this command, a sequence number that is one greater than the highest sequence number currently in use for this interface and direction is used.
This command specified in Interface Config mode only affects a single interface, whereas the Global Config mode setting is applied to all interfaces. The vlan keyword is only valid in the Global Config mode. The Interface Config mode command is only available on platforms that support independent per-port class of service queue configuration.

Note: You should be aware that the
Format ipv6 traffic-filter
Modes • Global Config • Interface Config
no ipv6 traffic-filter
This command removes an IPv6 ACL identified by
Format no ipv6 traffic-filter
Modes • Global Config • Interface Config
show ipv6 access-lists
This command displays an IPv6 access list and all of the rules that are defined for the IPv6 ACL. Use the [name] parameter to identify a specific IPv6 ACL to display.
Format show ipv6 access-lists [name]
Mode Privileged EXEC
| Term Definition | |
| Rule Number The | ordered rule number identifier defined within the IPv6 ACL. |
| Action The action | associated with each rule. The possible values are Permit or Deny. |
| Match All | Indicates whether this access list applies to every packet. Possible values are True or False. |
| Protocol The protocol to filter for this rule. | |
| Source IP Address | The source IP address for this rule. |
| Source L4 Port Keyword | The source port for this rule. |
| Destination IP Address | The destination IP address for this rule. |
| Destination L4 Port Keyword | The destination port for this rule. |
| IP DSCP The value specified for IP DSCP. | |
| Flow Label The value specified for IPv6 Flow Label. | |
| Log Displays when you enable logging for the rule. | |
| Assign Queue The queue identifier to which packets matching this rule are assigned. | |
| Mirror Interface The unit/slot/port to which packets matching this rule are copied. | |
| Redirect Interface | The unit/slot/port to which packets matching this rule are forwarded. |
Auto-Voice over IP Commands
This section describes the commands you use to configure Auto-Voice over IP (VoIP) commands. The Auto-VoIP feature explicitly matches VoIP streams in Ethernet switches and provides them with a better class-of-service than ordinary traffic. When you enable the Auto-VoIP feature on an interface, the interface scans incoming traffic for the following call-control protocols:
- Session Initiation Protocol (SIP)
• H.323 - Skinny Client Control Protocol (SCCP)
When a call-control protocol is detected, the switch assigns the traffic in that session to the highest CoS queue, which is generally used for time-sensitive traffic.
auto-voip all
Use this command to enable VoIP Profile on the interfaces of the switch.
Default disabled
Format auto-voip all
Mode Global Config
no auto-voip all
Use this command to disable VoIP Profile on the interfaces of the switch.
Format no auto-voip all
Mode Global Config
auto-voip
Use this command to enable VoIP Profile on the interface.
Default disabled
Format auto-voip
Mode Interface Config
no auto-voip
Use this command to disable VoIP Profile on the interface.
Format no auto-voip all
Mode Interface Config
show auto-voip
Use this command to display the VoIP Profile settings on the interface or interfaces of the switch.
Format show auto-voip interface {
Mode Privileged EXEC
| Field Description | |
| AutoVoIP Mode T | The Auto VoIP mode on the interface. |
| Traffic Class | The CoS Queue or Traffic Class to which all VoIP traffic is mapped to. This is not configurable and defaults to the highest CoS queue available in the system for data traffic. |
Chapter 9
Utility Commands
This chapter describes the utility commands available in the CLI.
The Utility Commands chapter includes the following sections:
- “Auto Install Commands” on page 9-2
- “Dual Image Commands” on page 9-4
- “System Information and Statistics Commands” on page 9-6
- “Logging Commands” on page 9-18
- “System Utility and Clear Commands” on page 9-24
- “Simple Network Time Protocol (SNTP) Commands” on page 9-34
- “DHCP Server Commands” on page 9-40
- “DNS Client Commands” on page 9-55
- “Packet Capture Commands” on page 9-61
- “Cable Test Command” on page 9-83
- “sFlow Commands” on page 9-84
- “Software License Commands” on page 9-89

Note: The commands in this chapter are in one of four functional groups:
• Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Copy commands transfer or save configuration and informational files to and from the switch.
- Clear commands clear some or all of the settings to factory defaults.
Auto Install Commands
This section describes the Auto Install Commands. Auto Install is a software feature which provides for the configuration of a switch automatically when the device is initialized and no configuration file is found on the switch. The Auto Install process requires DHCP to be enabled by default in order for it to be completed. The downloaded config file is not automatically saved to startup-config. An administrator must explicitly issue a save request in order to save the configuration. The Auto Install process depends upon the configuration of other devices in the network, including a DHCP or BOOTP server, a TFTP server and, if necessary, a DNS server.
There are three steps to Auto Install:
- Configuration or assignment of an IP address for the device.
- Assignment of a TFTP server.
- Obtain a configuration file for the device from the TFTP server.
show autoinstall
This command displays the current status of the Auto Config process.
Format show autoinstall
Mode Privileged EXEC
| Term Definition | |
| AutoInstall Mode | The administrator mode is enabled or disabled. |
| AutoSave Modet | If this option is enabled, the downloaded config file will be saved. Otherwise, administrator must explicitly issue a "copy running-config startup-config" command in order to save the configuration. |
| AutoInstall Retry Count | the number of attempts to download a configuration. |
| AutoInstall State | The status of the AutoInstall. |
Example
(switch) #show autoinstall AutoInstall Mode...... Stopped AutoSave Mode...... Disabled AutoInstall Retry Count...... 3 AutoInstall State...... Waiting for boot options
boot autoinstall auto-save
This command is used to enable automatically saving the downloaded configuration on the switch.
Default Disabled
Format boot autoinstall auto-save
Mode Privileged EXEC
no boot autoinstall auto-save
This command is used to disable automatically saving the downloaded configuration on the switch..
Format no boot autoinstall auto-save
Mode Privileged EXEC
boot autoinstall start
The command is used to start Auto Install on the switch. Auto Install tries to download a config file from a TFTP server..
Format boot autoinstall start
Mode Privileged EXEC
boot autoinstall stop
The command is used to A user may terminate the Auto Install process at any time prior to the downloading of the config file. This is most optimally done when the switch is disconnected from the network, or if the requisite configuration files have not been configured on TFTP servers. Termination of the Auto Install process ends further periodic requests for a host-specific file.
Format boot autoinstall stop
Mode Privileged EXEC
boot autoinstall retry-count
This command is used to set the number of attempts to download a configuration. The valid range is from 1 to 6.
Default 3
Format boot autoinstall retry-count
Mode Privileged EXEC
no boot autoinstall retry-count
This command is used to reset the number to the default. The default number is 3.
Format no boot autoinstall retry-count
Mode Privileged EXEC
Dual Image Commands
The software supports a dual image feature that allows the switch to have two software images in the permanent storage. You can specify which image is the active image to be loaded in subsequent reboots. This feature allows reduced down-time when you upgrade or downgrade the software.
delete
This command deletes the supplied image file from the permanent storage. The image to be deleted must be a backup image. If this image is the active image, or if this image is activated, an error message displays. The optional
Format delete [
Mode Privileged EXEC
boot system
This command activates the specified image. It will be the active-image for subsequent reboots and will be loaded by the boot loader. The current active-image is marked as the backup-image for subsequent reboots. The optional
Format boot system [
Mode Privileged EXEC
show bootvar
This command displays the version information and the activation status for the current active and backup images on the supplied unit (node) of the Stack. If you do not specify a unit number, the command displays image details for all nodes on the Stack. The command also displays any text description associated with an image. This command, when used on a Standalone system, displays the switch activation status. For a standalone system, the unit parameter is not valid.
Format show bootvar [
Mode Privileged EXEC
filedescr
This command associates a given text description with an image. Any existing description will be replaced. For stacking, the [
Format filedescr [
Mode Privileged EXEC
update bootcode
This command updates the bootcode (boot loader) on the switch. The bootcode is read from the active-image for subsequent reboots. The optional
Format update bootcode [
Mode Privileged EXEC
System Information and Statistics Commands
This section describes the commands you use to view information about system features, components, and configurations.
show arp switch
This command displays the contents of the IP stack's Address Resolution Protocol (ARP) table. The IP stack only learns ARP entries associated with the management interfaces - network or service ports. ARP entries associated with routing interfaces are not listed.
Format show arp switch
Mode Privileged EXEC
| Term Definition | |
| IP Address IP address of the management interface or another device on the management network. | |
| MAC Address Hardware MAC address of that device. | |
| Interface | For a service port the output is Management. For a network port, the output is the unit/slot/port of the physical interface. |
show eventlog
This command displays the event log, which contains error messages from the system. The event log is not cleared on a system reset. The
Format show eventlog [
Mode Privileged EXEC
| Term Definition | |
| File The file in which the event originated. | |
| Line The line number of the event. | |
| Task Id The task ID of the event. | |
| Code The event code. | |
| Time The time this event occurred. | |
| Unit The unit for the event. | |

Note: Event log information is retained across a switch reset.
show hardware
This command displays inventory information for the switch.

Note: The show version command and the show hardware command display the same information. In future releases of the software, the show hardware command will not be available. For a description of the command output, see the command “show version” on page 9-8.
Format show hardware
Mode Privileged EXEC
show version
This command displays inventory information for the switch.
| Note: The show version command will replace the show hardware command in future releases of the software. |
Format show version
Mode Privileged EXEC
| Term Definition | |
| Switch Description | Text used to identify the product name of this switch. |
| Machine Type The machine model as defined by the Vital Product Data. | |
| Machine Model The machine model as defined by the Vital Product Data | |
| Serial Number The unique box serial number for this switch. | |
| FRU Number The field replaceable unit number. | |
| Part Number Manufacturing part number. | |
| Maintenance Level | Hardware changes that are significant to software. |
| Manufacturer Manufacturer descriptor field. | |
| Burned in MAC Address | Universally assigned network address. |
| Software Version | The release.version.revision number of the code currently running on the switch. |
| Operating System | The operating system currently running on the switch. |
| Network Processing Device | The type of the processor microcode. |
| Additional Packages | The additional packages incorporated into this system. |
show interface
This command displays a summary of statistics for a specific interface or a count of all CPU traffic based upon the argument.
Format show interface {
Mode Privileged EXEC
The display parameters, when the argument is
| Parameters Definition | |
| Packets Received Without Error | The total number of packets (including broadcast packets and multicast packets) received by the processor. |
| Packets Received With Error | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| Broadcast Packets Received | The total number of packets received that were directed to the broadcast address. Note that this does not include multicast packets. |
| Packets Transmitted Without Error | The total number of packets transmitted out of the interface. |
| Transmit Packets Errors | The number of outbound packets that could not be transmitted because of errors. |
| Collisions Frames | The best estimate of the total number of collisions on this Ethernet segment. |
| Time Since Counters Last Cleared | The elapsed time, in days, hours, minutes, and seconds since the statistics for this port were last cleared. |
The display parameters, when the argument is “switchport” are as follows:
| Term Definition | |
| PacketsReceivedWithout Error | The total number of packets (including broadcast packets and multicast packets) received by the processor. |
| Broadcast PacketsReceived | The total number of packets received that were directed to the broadcast address. Note that this does not include multicast packets. |
| Packets Received With Error | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| Packets Transmitted Without Error | The total number of packets transmitted out of the interface. |
| Broadcast Packets Transmitted | The total number of packets that higher-level protocols requested to be transmitted to the Broadcast address, including those that were discarded or not sent. |
| Transmit Packet Errors | The number of outbound packets that could not be transmitted because of errors. |
| Address Entries Currently In Use | The total number of Forwarding Database Address Table entries now active on the switch, including learned and static entries. |
| VLAN Entries Currently In Use | The number of VLAN entries presently occupying the VLAN table. |
| Time Since Counters Last Cleared | The elapsed time, in days, hours, minutes, and seconds since the statistics for this switch were last cleared. |
show interface ethernet
This command displays detailed statistics for a specific interface or for all CPU traffic based upon the argument.
Format show interface ethernet
{
Mode Privileged EXEC
When you specify a value for
| Term Definition | |
| Total Packets Received (Octets) | The total number of octets of data received by the processor (excluding framing bits but including FCS octets). |
| Packets Received Without Error | The total number of packets (including broadcast packets and multicast packets) received by the processor. |
| Unicast Packets Received | The number of subnetwork-unicast packets delivered to a higher-layer protocol. |
| Multicast Packets Received | The total number of packets received that were directed to a multicast address. Note that this number does not include packets directed to the broadcast address. |
| Broadcast Packets Received | The total number of packets received that were directed to the broadcast address. Note that this does not include multicast packets. |
| Receive Packets Discarded | The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. A possible reason for discarding a packet could be to free up buffer space. |
| Octets Transmitted | The total number of octets transmitted out of the interface, including framing characters. |
| Packets Transmitted without Errors | The total number of packets transmitted out of the interface. |
| Unicast Packets Transmitted | The total number of packets that higher-level protocols requested be transmitted to a subnetwork-unicast address, including those that were discarded or not sent. |
| Multicast Packets Transmitted | The total number of packets that higher-level protocols requested be transmitted to a Multicast address, including those that were discarded or not sent. |
| Broadcast Packets Transmitted | The total number of packets that higher-level protocols requested be transmitted to the Broadcast address, including those that were discarded or not sent. |
| Transmit Packets Discarded | The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol. A possible reason for discarding a packet could be to free up buffer space. |
| Most Address Entries Ever Used | The highest number of Forwarding Database Address Table entries that have been learned by this switch since the most recent reboot. |
| Address Entries Currently in Use | The number of Learned and static entries in the Forwarding Database Address Table for this switch. |
| Maximum VLAN Entries | The maximum number of Virtual LANs (VLANs) allowed on this switch. |
| Most VLAN Entries Ever Used | The largest number of VLANs that have been active on this switch since the last reboot. |
| Static VLAN Entries | The number of presently active VLAN entries on this switch that have been created statically. |
| Dynamic VLAN Entries | The number of presently active VLAN entries on this switch that have been created by GVRP registration. |
| VLAN Deletes | The number of VLANs on this switch that have been created and then deleted since the last reboot. |
| Time Since Counters Last Cleared | The elapsed time, in days, hours, minutes, and seconds, since the statistics for this switch were last cleared. |
show mac-addr-table
This command displays the forwarding database entries. These entries are used by the transparent bridging function to determine how to forward a received frame.
Enter all or no parameter to display the entire table. Enter a MAC Address and VLAN ID to display the table entry for the requested MAC address on the specified VLAN. Enter the count parameter to view summary information about the forwarding database table. Use the interface
Format show mac-addr-table [{
Mode Privileged EXEC
The following information displays if you do not enter a parameter, the keyword all, or the MAC address and VLAN ID. If you enter vlan
| Term Definition | |
| Mac Address | A unicast MAC address for which the switch has forwarding and or filtering information. The format is 6 or 8 two-digit hexadecimal numbers that are separated by colons, for example 01:23:45:67:89:AB. In an IVL system the MAC address will be displayed as 8 bytes. |
| Interface The port | through which this address was learned. |
| Interface Index | This object indicates the ifIndex of the interface table entry associated with this port. |
| Status The status | of this entry. The meanings of the values are:Static—The value of the corresponding instance was added by the system or a user when a static MAC filter was defined. It cannot be relearned.Learned—The value of the corresponding instance was learned by observing the source MAC addresses of incoming traffic, and is currently in use.Management—The value of the corresponding instance (system MAC address) is also the value of an existing instance of dot1dStaticAddress. It is identified with interface 0/1. and is currently used when enabling VLANs for routing.Self—The value of the corresponding instance is the address of one of the switch’s physical interfaces (the system’s own MAC address).GMRP Learned—The value of the corresponding was learned via GMRP and applies to Multicast.Other—The value of the corresponding instance does not fall into one of the other categories. |
If you enter the interface
| Term Definition | |
| VLAN ID The VLAN | on which the MAC address was learned. |
The following information displays if you enter the count parameter:
| Term Definition | |
| Dynamic Address count | Number of MAC addresses in the forwarding database that were automatically learned. |
| Static Address (User-defined) count | Number of MAC addresses in the forwarding database that were manually entered by a user. |
| Total MAC Addresses in use | Number of MAC addresses currently in the forwarding database. |
| Total MAC Addresses available | Number of MAC addresses the forwarding database can handle. |
show process cpu
This command provides the percentage utilization of the CPU by different tasks.

Note: It is not necessarily the traffic to the CPU, but different tasks that keep the CPU busy.
Format show process cpu
Mode Privileged EXEC
The following shows example CLI display output.
(Switch) #show process cpu
Memory Utilization Report
status bytes
free 192980480
alloc 53409968
Task Utilization Report
Task Utilization
| bcmL2X.0 | 0.75% |
| bcmCNTR.0 | 0.20% |
| bcmLINK.0 | 0.35% |
| DHCP snoop | 0.10% |
| Dynamic ARP Inspection | 0.10% |
| dotls_timer_task | 0.10% |
| dhcpsPingTask | 0.20% |
show mbuf total
This command shows the total system buffer pools status.
Format show rmbuf total
Mode Privileged EXEC
The following shows an example of CLI display output for the command.
(switch) #show mbuf total
mbufSize 9284 (0x2444)
Current Time 0x1897fa
| MbufsFree 150 | |
| MbufsRxUsed 0 | |
| Total Rx Norm Alloc Attempts | 26212 |
| Total Rx Mid2 Alloc Attempts | 4087 |
| Total Rx Mid1 Alloc Attempts | 188943 |
| Total Rx High Alloc Attempts | 384555 |
| Total Tx Alloc Attempts | 2478536 |
| Total Rx Norm Alloc Failures | 0 |
| Total Rx Mid2 Alloc Failures | 0 |
| Total Rx Mid1 Alloc Failures | 0 |
| Total Rx High Alloc Failures | 0 |
| Total Tx Alloc Failures | 0 |
show running-config
Use this command to display or capture the current setting of different protocol packages supported on the switch. This command displays or captures commands with settings and configurations that differ from the default value. To display or capture the commands with settings and configurations that are equal to the default value, include the [all] option.

Note: Show running-config does not display the User Password, even if you set one different from the default.
The output is displayed in script format, which can be used to configure another switch with the same configuration. If the optional

Note: If you issue the show running-config command from a serial connection, access to the switch through remote connections (such as Telnet) is suspended while the output is being generated and displayed.

Note: If you use a text-based configuration file, the show running-config command will only display configured physical interfaces, i.e. if any interface only contains the default configuration, that interface will be skipped from the show running-config command output. This is true for any configuration mode that contains nothing but default configuration. That is, the command to enter a particular config mode, followed immediately by its 'exit' command, are both omitted from the show running-config command output (and hence from the startup-config file when the system configuration is saved.)
If option
- If all the flags in a particular group are enabled, then the command displays trapflags
all. - If some, but not all, of the flags in that group are enabled, the command displays trapflags
.
Format show running-config [all |
Mode Privileged EXEC
show running-config interface
This command shows the current configuration on a particular interface. The interface could be a physical port or a virtual port—like a LAG or VLAN. The output captures how the configuration differs from the factory default value.
Format show running-config interface {
Mode Interface Config
show sysinfo
This command displays switch information.
Format show sysinfo
Mode Privileged EXEC
| Term Definition | |
| Switch Description | Text used to identify this switch. |
| System Name | Name used to identify the switch.The factory default is blank. To configure the system name, see “snmp-server” on page 10-41. |
| System Location | Text used to identify the location of the switch. The factory default is blank. To configure the system location, see “snmp-server” on page 10-41. |
| System Contact | Text used to identify a contact person for this switch. The factory default is blank. To configure the system location, see “snmp-server” on page 10-41. |
| System Object ID | The base object ID for the switch’s enterprise MIB. |
| System Up Time | The time in days, hours and minutes since the last switch reboot. |
| MIBs Supported | A list of MIBs supported by this agent. |
show tech-support
Use the show tech-support command to display system and configuration information when you contact technical support. The output of the show tech-support command combines the output of the following commands:
• show version
• show sysinfo
• show port all
• show isdp neighbors
• show logging
• show event log
• show logging buffered
• show trap log
Format show tech-support
Mode Privileged EXEC
terminal length
Use this command to set the number of lines of output to be displayed on the screen, i.e. pagination, for the show running-config and show running-config all commands. The terminal length size is either zero or a number in the range of 5 to 48. After the user-configured number of lines is displayed in one page, the system prompts the user “--More-- or (q)uit.” Press q or Q to quit, or press any key to display the next set of <5-48> lines. The command terminal length 0 disables pagination and, as a result, the output of the show running-config command is displayed immediately.
Default 24 lines per page
Format terminal length <0 | 5-48>
Mode Privileged EXEC
no terminal length
Use this command to set the terminal length to the default value.
Format no terminal length
Mode Privileged EXEC
show terminal length
Use this command to display the value of the user-configured terminal length size.
Format show terminal length
Mode Privileged EXEC
Logging Commands
This section describes the commands you use to configure system logging, and to view logs and the logging settings.
logging buffered
This command enables logging to an in-memory log that keeps up to 128 logs.
Default disabled; critical when enabled
Format logging buffered
Mode Global Config
no logging buffered
This command disables logging to in-memory log.
Format no logging buffered
Mode Global Config
logging buffered wrap
This command enables wrapping of in-memory logging when the log file reaches full capacity. Otherwise when the log file reaches full capacity, logging stops.
Default enabled
Format logging buffered wrap
Mode Privileged EXEC
no logging buffered wrap
This command disables wrapping of in-memory logging and configures logging to stop when the log file capacity is full.
Format no logging buffered wrap
Mode Privileged EXEC
logging cli-command
This command enables the CLI command logging feature, which enables the 7000 series software to log all CLI commands issued on the system.
Default enabled
Format logging cli-command
Mode Global Config
no logging cli-command
This command disables the CLI command Logging feature.
Format no logging cli-command
Mode Global Config
logging console
This command enables logging to the console. You can specify the
Default disabled; critical when enabled
Format logging console [severitylevel]
Mode Global Config
no logging console
This command disables logging to the console.
Format no logging console
Mode Global Config
logging host
This command enables logging to a host. You can configure up to eight hosts. The
Default • port—514
• level—critical (2)
Format logging host
[
Mode Global Config
logging host remove
This command disables logging to host. See “show logging hosts” on page 9-22 for a list of host indexes.
Format logging host remove
Mode Global Config
logging syslog
This command enables syslog logging. The
Default disabled
Format logging syslog [port
Mode Global Config
no logging syslog
This command disables syslog logging.
Format no logging syslog
Mode Global Config
show logging
This command displays logging configuration information.
Format show logging
Mode Privileged EXEC
| Term Definition | |
| Logging Client Local Port | Port on the collector/relay to which syslog messages are sent. |
| CLI Command Logging | Shows whether CLI Command logging is enabled. |
| Console Logging | Shows whether console logging is enabled. |
| Console Logging Severity Filter | The minimum severity to log to the console log. Messages with an equal or lower numerical severity are logged. |
| Buffered Logging | Shows whether buffered logging is enabled. |
| Syslog Logging | Shows whether syslog logging is enabled. |
| Log Messages Received | Number of messages received by the log process. This includes messages that are dropped or ignored. |
| Log Messages Dropped | Number of messages that could not be processed due to error or lack of resources. |
| Log Messages Relayed | Number of messages sent to the collector/relay. |
show logging buffered
This command displays buffered logging (system startup and system operation logs).
Format show logging buffered
Mode Privileged EXEC
| Term Definition | |
| Buffered (In-Memory) Logging | Shows whether the In-Memory log is enabled or disabled. |
| Buffered Logging Wrapping Behavior | The behavior of the In Memory log when faced with a log full situation. |
| Buffered Log Count | The count of valid entries in the buffered log. |
show logging hosts
This command displays all configured logging hosts. The
Format show logging hosts
Mode Privileged EXEC
| Term Definition | |
| Host Index (Used for deleting hosts.) | |
| IP Address / Hostname | IP address or hostname of the logging host. |
| Severity Level | The minimum severity to log to the specified address. The possible values are emergency (0), alert (1), critical (2), error (3), warning (4), notice (5), info (6), or debug (7). |
| Port The server port number, which is the port on the local host from which syslog messages are sent. | |
| Host Status | The state of logging to configured syslog hosts. If the status is disable, no logging occurs. |
show logging traplogs
This command displays SNMP trap events and statistics.
Format show logging traplogs
Mode Privileged EXEC
| Term Definition | |
| Number of Traps Since Last Reset | The number of traps since the last boot. |
| Trap Log Capacity | The number of traps the system can retain. |
| Number of Traps Since Log Last Viewed | The number of new traps since the command was last executed. |
| Log The log number. | |
| System Time Up | How long the system had been running at the time the trap was sent. |
| Trap The text of the | e trap message. |
logging persistent
Use this command to configure the Persistent logging for the switch. The severity level of logging messages is specified at severity level. Possible values for severity level are (emergency|0, alert|1, critical|2, error|3, warning|4, notice|5, info|6, debug|7).
Default Disable
Format logging persistent
Mode Global Config
no logging persistent
Use this command to disable the persistent logging in the switch.
Format no logging persistent
Mode Global Config
System Utility and Clear Commands
This section describes the commands you use to help troubleshoot connectivity issues and to restore various configurations to their factory defaults.
traceroute
Use the traceroute command to discover the routes that packets actually take when traveling to their destination through the network on a hop-by-hop basis. Traceroute continues to provide a synchronous response when initiated from the CLI.
Default • count: 3 probes
- interval: 3 seconds
- size: 0 bytes
- port: 33434
- maxTtl: 30 hops
- maxFail: 5 probes
- initTtl: 1 hop
Format traceroute
Mode Privileged EXEC
Using the options described below, you can specify the initial and maximum time-to-live (TTL) in probe packets, the maximum number of failures before termination, the number of probes sent for each TTL, and the size of each probe.
| Parameter Description | |
| ipaddr|hostname | The ipaddr value should be a valid IP address. The hostname value should be a valid hostname. |
| initTtl | Use initTtl to specify the initial time-to-live (TTL), the maximum number of router hops between the local and remote system. Range is 0 to 255. |
| maxTtl Use maxTtle | to specify the maximum TTL. Range is 1 to 255. |
| maxFail | Use maxFail to terminate the traceroute after failing to receive a response for this number of consecutive probes. Range is 0 to 255. |
| interval | Use interval to specify the time between probes, in seconds. Range is 1 to 60 seconds. |
| count | Use the optional count parameter to specify the number of probes to send for each TTL value. Range is 1 to 10 probes. |
| port | Use the optional port parameter to specify destination UDP port of the probe. This should be an unused port on the remote destination system. Range is 1 to 65535. |
| size | Use the optional size parameter to specify the size, in bytes, of the payload of the Echo Requests sent. Range is 0 to 65507 bytes. |
Example: The following are examples of the CLI command.
traceroute Success:
(Switch) # traceroute 10.240.10.115 initTtl 1 maxTtl 4 maxFail 0 interval 1 count 3 port 33434 size 43
Traceroute to 10.240.10.115 ,4 hops max 43 byte packets:
1 10.240.4.1 708 msec 41 msec 11 msec
2 10.240.10.115 0 msec 0 msec 0 msec
Hop Count = 1 Last TTL = 2 Test attempt = 6 Test Success = 6
traceroute Failure:
(Switch) # traceroute 10.40.1.1 initTtl 1 maxFail 0 interval 1 count 3 port 33434 size 43
Traceroute to 10.40.1.1, 30 hops max 43 byte packets:
1 10.240.4.1 19 msec 18 msec 9 msec
2 10.240.1.252 0 msec 0 msec 1 msec
3 172.31.0.9 277 msec 276 msec 277 msec
4 10.254.1.1 289 msec 327 msec 282 msec
5 10.254.21.2 287 msec 293 msec 296 msec
6 192.168.76.2 290 msec 291 msec 289 msec
7 0.0.0.0 0 msec *
Hop Count = 6 Last TTL = 7 Test attempt = 19 Test Success = 18
traceroute ipv6
Use the traceroute command to discover the routes that packets actually take when traveling to their destination through the network on a hop-by-hop basis. The
Default port: 33434
Format traceroute ipv6
Mode Privileged EXEC
clear config
This command resets the configuration to the factory defaults without powering off the switch. When you issue this command, a prompt appears to confirm that the reset should proceed. When you enter y, you automatically reset the current configuration on the switch to the default values. It does not reset the switch.
Format clear config
Mode Privileged EXEC
clear mac-addr-table
This command clears the dynamically learned MAC addresses of the switch.
Format clear mac-addr-table
Mode Privileged EXEC
clear logging buffered
This command clears the messages maintained in the system log.
Format clear logging buffered
Mode Privileged EXEC
clear counters
This command clears the statistics for a specified
Format clear counters {
Mode Privileged EXEC
clear igmpsnooping
This command clears the tables managed by the IGMP Snooping function and attempts to delete these entries from the Multicast Forwarding Database.
Format clear igmpsnooping
Mode Privileged EXEC
clear pass
This command resets all user passwords to the factory defaults without powering off the switch. You are prompted to confirm that the password reset should proceed.
Format clear pass
Mode Privileged EXEC
clear port-channel
This command clears all port-channels (LAGs).
Format clear port-channel
Mode Privileged EXEC
clear traplog
This command clears the trap log.
Format clear traplog
Mode Privileged EXEC
clear vlan
This command resets VLAN configuration parameters to the factory defaults.
Format clear vlan
Mode Privileged EXEC
enable password
This command prompts you to change the Privileged EXEC password. Passwords are a maximum of 64 alphanumeric characters. The password is case sensitive. The option [encrypted] allows the administrator to transfer the enable password between devices without having to know the password. In this case, the
Format enable password
Mode Privileged EXEC
logout
This command closes the current telnet connection or resets the current serial connection.

Note: Save configuration changes before logging out.
Format logout
Modes • Privileged EXEC
- User EXEC
ping
Use this command to determine whether another computer is on the network. Ping provides a synchronous response when initiated from the CLI and Web interfaces.
Default • The default count is 1.
- The default interval is 3 seconds.
- The default size is 0 bytes.
Format ping
Modes • Privileged EXEC
- User EXEC
Using the options described below, you can specify the number and size of Echo Requests and the interval between Echo Requests.
| Parameter Description | |
| count | Use the count parameter to specify the number of ping packets (ICMP Echo requests) that are sent to the destination address specified by thefield. The range foris 1 to 15 requests. |
| interval | Use the interval parameter to specify the time between Echo Requests, in seconds. Range is 1 to 60 seconds. |
| size | Use the size parameter to specify the size, in bytes, of the payload of the Echo Requests sent. Range is 0 to 65507 bytes. |
The following are examples of the CLI command.
ping success:
(Switch) #ping 10.254.2.160 count 3 interval 1 size 255 Pinging 10.254.2.160 with 255 bytes of data:
Received response for icmp_seq = 0. time= 275268 usec Received response for icmp_seq = 1. time= 274009 usec Received response for icmp_seq = 2. time= 279459 usec
----10.254.2.160 PING statistics---- 3 packets transmitted, 3 packets received, 0% packet loss round-trip (msec) min/avg/max = 274/279/276
ping failure:
In Case of Unreachable Destination:
(Switch) # ping 192.168.254.222 count 3 interval 1 size 255 Pinging 192.168.254.222 with 255 bytes of data: Received Response: Unreachable Destination Received Response : Unreachable Destination Received Response : Unreachable Destination ----192.168.254.222 PING statistics---- 3 packets transmitted, 3 packets received, 0% packet loss round-trip (msec) min/avg/max = 0/0/0
In Case Of Request TimedOut:
(Switch) # ping 1.1.1.1 count 1 interval 3 Pinging 1.1.1.1 with 0 bytes of data:
----1.1.1.1 PING statistics----
1 packets transmitted, 0 packets received, 100% packet loss round-trip (msec) min/avg/max = 0/0/0
quit
This command closes the current telnet connection or resets the current serial connection. The system asks you whether to save configuration changes before quitting.
Format quit
Modes • Privileged EXEC • User EXEC
reload
This command resets the switch without powering it off. Reset means that all network connections are terminated and the boot code executes. The switch uses the stored configuration to initialize the switch. You are prompted to confirm that the reset should proceed. The LEDs on the switch indicate a successful reset.
Format reload
Mode Privileged EXEC
save
This command makes the current configuration changes permanent by writing the configuration changes to system NVRAM.
Format save
Mode Privileged EXEC
copy
The copy command uploads and downloads files to and from the switch. You can also use the copy command to manage the dual images (image1 and image2) on the file system. Upload and download files from a server by using TFTP or Xmodem. SFTP and SCP are available as additional transfer methods if the software package supports secure management.
Format copy
Mode Privileged EXEC
Replace the
{xmodem | tftp://<ipaddr|hostname>|<ip6address|hostname>/<filepath>/<filename>
[noval]
| sftp|scp://<username>@<ipaddr>|<ipv6address>|<filepath><filename>}
For TFTP, SFTP and SCP, the

Note:

Warning: Remember to upload the existing Switch CLI.cfg file off the switch prior to loading a new release image in order to make a backup.
For platforms that support a USB device, the copy command can be used to transfer files from and to the USB device. The syntax for the USB file is: usb://
Parameters for the copy command are listed in the following table:
| Source Destination Description | ||
| nvram:backup-config nvram | :startup-config Copies the backup configuration to the startup configuration. | |
| Source | Destination | Description |
| nvram:clibannerCopies the CLI banner to a server. | ||
| nvram:errorlogCopies the error log file to a server. | ||
| nvram:Switch CLI.cfgUploads the binary config file to a server. | ||
| nvram:logCopies the log file to a server. | ||
| nvram:scriptCopies a specified configuration script file to a server. | ||
| nvram:startup-config nvram:backup-config Copies the startup configuration to the backup configuration. | ||
| nvram:startup-configCopies the startup configuration to a server. | ||
| nvram:traplogCopies the trap log file to a server. | ||
| system:running-config nvram:startup-config Saves the running configuration to nvram. | ||
| nvram:clibanner Downloads the CLI banner to the system. | ||
| nvram:Switch CLI.cfg Downloads the binary config file to the system. | ||
| nvram:script | Downloads a configuration script file to the system. During the download of a configuration script, the copy command validates the script. In case of any error, the command lists all the lines at the end of the validation process and prompts you to confirm before copying the script file. | |
| nvram:script | noval | When you use this option, the copy command will not validate the downloaded script file. An example of the CLI command follows: |
| (NETGEAR Switch CLI Routing) #copy tftp://1.1.1.1/file.scr nvram:script file.scr noval | ||
| nvram:sshkey-dsa Downloads an SSH key file. | For more information, see “Secure Shell (SSH) Commands” on page 10-16. | |
| nvram:sshkey-rsa1 Downloads an SSH key file. | ||
| nvram:sshkey-rsa2 Downloads an SSH key file. | ||
| nvram:sslpem-dhweak Downloads an HTTP secure-server certificate. | secure-server certificate. | |
| nvram:sslpem-dhstrong Downloads an HTTP secure-server certificate. | secure-server certificate. | |
| nvram:sslpem-root Downloads an HTTP secure-server certificate. For more information, see “Hypertext Transfer Protocol (HTTP) Commands” on page 10-20. | ||
| nvram:sslpem-server Downloads an HTTP secure-server certificate. | secure-server certificate. | |
| nvram:startup-config Downloads the startup con configuration file to the system. | configuration file to the system. | |
| nvram:system-image Downloads a code image to the system. | to the system. | |
| nvram:license-key Download the license date to the system. | date to the system. | |
| Source Destination Description | ||
| kernel Downloads a code file by xmodem, zmodem, or TFTP. | ||
| {image1 | image2} Download an image from the remote server to either image. In a stacking environment, the downloaded image is distributed to the stack nodes. | ||
| {image1 | image2} | Upload either image to the remote server. | |
| image1 image2 Copy image1 to image2. | ||
| image2 image1 Copy image2 to image1. | ||
| {image1 | image2} unit:///{image1 | image2} | Copy an image from the management node to a given node in a Stack. Use the unit parameter to specify the node to which the image should be copied. | |
| {image1 | image2} unit:/*/{image1 | image2} Copy an image from the management node to all of the nodes in a Stack. | ||
Simple Network Time Protocol (SNTP) Commands
This section describes the commands you use to automatically configure the system time and date by using SNTP.
sntp broadcast client poll-interval
This command sets the poll interval for SNTP broadcast clients in seconds as a power of two where
Default 6
Format sntp broadcast client poll-interval
Mode Global Config
no sntp broadcast client poll-interval
This command resets the poll interval for SNTP broadcast client back to the default value.
Format no sntp broadcast client poll-interval
Mode Global Config
sntp client mode
This command enables Simple Network Time Protocol (SNTP) client mode and may set the mode to either broadcast or unicast.
Default disabled
Format sntp client mode [broadcast | unicast]
Mode Global Config
no sntp client mode
This command disables Simple Network Time Protocol (SNTP) client mode.
Format no sntp client mode
Mode Global Config
sntp client port
This command sets the SNTP client port id to a value from 1-65535.
Default 123
Format sntp client port
Mode Global Config
no sntp client port
This command resets the SNTP client port back to its default value.
Format no sntp client port
Mode Global Config
sntp unicast client poll-interval
This command sets the poll interval for SNTP unicast clients in seconds as a power of two where
Default 6
Format sntp unicast client poll-interval
Mode Global Config
no sntp unicast client poll-interval
This command resets the poll interval for SNTP unicast clients to its default value.
Format no sntp unicast client poll-interval
Mode Global Config
sntp unicast client poll-timeout
This command will set the poll timeout for SNTP unicast clients in seconds to a value from 1-30.
Default 5
Format sntp unicast client poll-timeout
Mode Global Config
no sntp unicast client poll-timeout
This command will reset the poll timeout for SNTP unicast clients to its default value.
Format no sntp unicast client poll-timeout
Mode Global Config
sntp unicast client poll-retry
This command will set the poll retry for SNTP unicast clients to a value from 0 to 10.
Default 1
Format sntp unicast client poll-retry
Mode Global Config
no sntp unicast client poll-retry
This command will reset the poll retry for SNTP unicast clients to its default value.
Format no sntp unicast client poll-retry
Mode Global Config
sntp server
This command configures an SNTP server (a maximum of three). The optional priority can be a value of 1-3, the version a value of 1-4, and the port id a value of 1-65535.
Format sntp server
Mode Global Config
no sntp server
This command deletes an server from the configured SNTP servers.
Format no sntp server remove
Mode Global Config
clock timezone
When using SNTP/NTP time servers to update the switch's clock, the time data received from the server is based on Coordinated Universal Time (UTC) which is the same as Greenwich Mean Time (GMT). This may not be the time zone in which the switch is located. Use the clock timezone command to configure a time zone specifying the number of hours and optionally the number of minutes difference from UTC. To set the switch clock to UTC, use the no form of the command.
Format clock timezone zone-name +/-hours-offset [+/-minutes-offset]
Mode Global Config
Default no clock timezone
Zone name: A name to associate with the time zone
Hours-offset: Number of hours difference with UTC
Minutes-offset: Number of minutes difference with UTC
no clock timezone
This command sets the switch to UTC time.
Format no clock timezone
Mode Global Config
show sntp
This command is used to display SNTP settings and status.
Format show sntp
Mode Privileged EXEC
| Term Definition | |
| Last Update Time | Time of last clock update. |
| Last Unicast Attempt Time | Time of last transmit query (in unicast mode). |
| Last Attempt Status | Status of the last SNTP request (in unicast mode) or unsolicited message (in broadcast mode). |
| Broadcast Count | Current number of unsolicited broadcast messages that have been received and processed by the SNTP client since last reboot. |
| Multicast Count | Current number of unsolicited multicast messages that have been received and processed by the SNTP client since last reboot. |
show sntp client
This command is used to display SNTP client settings.
Format show sntp client
Mode Privileged EXEC
| Term Definition | |
| Client Supported Modes | Supported SNTP Modes (Broadcast, Unicast, or Multicast). |
| SNTP Version The highest SNTP version the client supports. | |
| Port SNTP Client Port. | |
| Client Mode Configured SNTP Client Mode. | |
show sntp server
This command is used to display SNTP server settings and configured servers.
Format show sntp server
Mode Privileged EXEC
| Term Definition | |
| Server Host Address | IP address or hostname of configured SNTP Server. |
| Server Type Address | Type of Server. |
| Server Stratum C | aimed stratum of the server for the last received valid packet. |
| Server Reference ID | Reference clock identifier of the server for the last received valid packet. |
| Server Mode SNT | P Server mode. |
| Server Maximum Entries | Total number of SNTP Servers allowed. |
| Server Current Entries | Total number of SNTP configured. |
For each configured server:
| Term Definition | |
| Host Address IP | address or hostname of configured SNTP Server. |
| Address Type Address | Type of configured SNTP server. |
| Priority IP priority | type of the configured server. |
| Version SNTP Version | number of the server. The protocol version used to query the server in unicast mode. |
| Port Server Port Number | |
| Last Attempt Time | Last server attempt time for the specified server. |
| Last Update Status | Last server attempt status for the server. |
| Total Unicast Requests | Number of requests to the server. |
| Failed Unicast Requests | Number of failed requests from server. |
show clock
This command is used to display the time information.
Format show clock [detail]
Mode Privileged EXEC
| Term Definition | |
| Time The time provided by the time source. | |
| Time Source The time source type. | |
| If option detail is specified, these terms are displayed | |
| Time Zone The time zone configured. | |
| Summer Time Indicate if the summer time is enabled. | |
DHCP Server Commands
This section describes the commands you to configure the DHCP server settings for the switch. DHCP uses UDP as its transport protocol and supports a number of features that facilitate in administration address allocations.
ip dhcp pool
This command configures a DHCP address pool name on a DHCP server and enters DHCP pool configuration mode.
Default none
Format ip dhcp pool
Mode Global Config
no ip dhcp pool
This command removes the DHCP address pool. The name should be previously configured pool name.
Format no ip dhcp pool
Mode Global Config
client-identifier
This command specifies the unique identifier for a DHCP client. Unique-identifier is a valid notation in hexadecimal format. In some systems, such as Microsoft DHCP clients, the client identifier is required instead of hardware addresses. The unique-identifier is a concatenation of the media type and the MAC address. For example, the Microsoft client identifier for Ethernet address c819.2488.f177 is 01c8.1924.88f1.77 where 01 represents the Ethernet media type. For more information, refer to the “Address Resolution Protocol Parameters” section of RFC 1700, Assigned Numbers for a list of media type codes.
Default none
Format client-identifier
Mode DHCP Pool Config
no client-identifier
This command deletes the client identifier.
Format no client-identifier
Mode DHCP Pool Config
client-name
This command specifies the name for a DHCP client. Name is a string consisting of standard ASCII characters.
Default none
Format client-name
Mode DHCP Pool Config
no client-name
This command removes the client name.
Format no client-name
Mode DHCP Pool Config
default-router
This command specifies the default router list for a DHCP client. {address1, address2...address8} are valid IP addresses, each made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid.
Default none
Format default-router
Mode DHCP Pool Config
no default-router
This command removes the default router list.
Format no default-router
Mode DHCP Pool Config
dns-server
This command specifies the IP servers available to a DHCP client. Address parameters are valid IP addresses; each made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid.
Default none
Format dns-server
Mode DHCP Pool Config
no dns-server
This command removes the DNS Server list.
Format no dns-server
Mode DHCP Pool Config
hardware-address
This command specifies the hardware address of a DHCP client. Hardware-address is the MAC address of the hardware platform of the client consisting of 6 bytes in dotted hexadecimal format. Type indicates the protocol of the hardware platform. It is 1 for 10 MB Ethernet and 6 for IEEE 802.
Default ethernet
Format hardware-address
Mode DHCP Pool Config
no hardware-address
This command removes the hardware address of the DHCP client.
Format no hardware-address
Mode DHCP Pool Config
host
This command specifies the IP address and network mask for a manual binding to a DHCP client. Address and Mask are valid IP addresses; each made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid. The prefix-length is an integer from 0 to 32.
Default none
Format host
[{Mode DHCP Pool Config
no host
This command removes the IP address of the DHCP client.
Format no host
Mode DHCP Pool Config
lease
This command configures the duration of the lease for an IP address that is assigned from a DHCP server to a DHCP client. The overall lease time should be between 1-86400 minutes. If you specify infinite, the lease is set for 60 days. You can also specify a lease duration. Days is an integer from 0 to 59. Hours is an integer from 0 to 23. Minutes is an integer from 0 to 59.
Default 1 (day)
Format lease [{
Mode DHCP Pool Config
no lease
This command restores the default value of the lease time for DHCP Server.
Format no lease
Mode DHCP Pool Config
network (DHCP Pool Config)
Use this command to configure the subnet number and mask for a DHCP address pool on the server. Network-number is a valid IP address, made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid. Mask is the IP subnet mask for the specified address pool. The prefix-length is an integer from 0 to 32.
Default none
Format network
Mode DHCP Pool Config
no network
This command removes the subnet number and mask.
Format no network
Mode DHCP Pool Config
bootfile
The command specifies the name of the default boot image for a DHCP client. The
Format bootfile
Mode DHCP Pool Config
no bootfile
This command deletes the boot image name.
Format no bootfile
Mode DHCP Pool Config
domain-name
This command specifies the domain name for a DHCP client. The
Default none
Format domain-name
Mode DHCP Pool Config
no domain-name
This command removes the domain name.
Format no domain-name
Mode DHCP Pool Config
netbios-name-server
This command configures NetBIOS Windows Internet Naming Service (WINS) name servers that are available to DHCP clients.
One IP address is required, although one can specify up to eight addresses in one command line. Servers are listed in order of preference (address1 is the most preferred server, address2 is the next most preferred server, and so on).
Default none
Format netbios-name-server
[Mode DHCP Pool Config
no netbios-name-server
This command removes the NetBIOS name server list.
Format no netbios-name-server
Mode DHCP Pool Config
netbios-node-type
The command configures the NetBIOS node type for Microsoft Dynamic Host Configuration Protocol (DHCP) clients.type Specifies the NetBIOS node type. Valid types are:
- b-node—Broadcast
- p-node—Peer-to-peer
- m-node—Mixed
- h-node—Hybrid (recommended)
Default none
Format netbios-node-type
Mode DHCP Pool Config
no netbios-node-type
This command removes the NetBIOS node Type.
Format no netbios-node-type
Mode DHCP Pool Config
next-server
This command configures the next server in the boot process of a DHCP client. The
parameter is the IP address of the next server in the boot process, which is typically a TFTP server.Default inbound interface helper addresses
Format next-server
Mode DHCP Pool Config
no next-server
This command removes the boot server list.
Format no next-server
Mode DHCP Pool Config
option
The option command configures DHCP Server options. The parameter specifies the DHCP option code and ranges from 1-254. The
Default none
Format option {ascii string | hex
Mode DHCP Pool Config
no option
This command removes the DHCP Server options. The parameter specifies the DHCP option code.
Format no option
Mode DHCP Pool Config
ip dhcp excluded-address
This command specifies the IP addresses that a DHCP server should not assign to DHCP clients. Low-address and high-address are valid IP addresses; each made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid.
Default none
Format ip dhcp excluded-address
Mode Global Config
no ip dhcp excluded-address
This command removes the excluded IP addresses for a DHCP client. Low-address and high-address are valid IP addresses; each made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid.
Format no ip dhcp excluded-address
Mode Global Config
ip dhcp ping packets
Use this command to specify the number, in a range from 2-10, of packets a DHCP server sends to a pool address as part of a ping operation. By default the number of packets sent to a pool address is 2, which is the smallest allowed number when sending packets. Setting the number of packets to 0 disables this command.
Default 2
Format ip dhcp ping packets <0,2-10>
Mode Global Config
no ip dhcp ping packets
This command prevents the server from pinging pool addresses and sets the number of packets to 0.
Default 0
Format no ip dhcp ping packets
Mode Global Config
service dhcp
This command enables the DHCP server.
Default disabled
Format service dhcp
Mode Global Config
no service dhcp
This command disables the DHCP server.
Format no service dhcp
Mode Global Config
ip dhcp bootp automatic
This command enables the allocation of the addresses to the bootp client. The addresses are from the automatic address pool.
Default disabled
Format ip dhcp bootp automatic
Mode Global Config
no ip dhcp bootp automatic
This command disables the allocation of the addresses to the bootp client. The address are from the automatic address pool.
Format no ip dhcp bootp automatic
Mode Global Config
ip dhcp conflict logging
This command enables conflict logging on DHCP server.
Default enabled
Format ip dhcp conflict logging
Mode Global Config
no ip dhcp conflict logging
This command disables conflict logging on DHCP server.
Format no ip dhcp conflict logging
Mode Global Config
clear ip dhcp binding
This command deletes an automatic address binding from the DHCP server database. If “*” is specified, the bindings corresponding to all the addresses are deleted.
is a valid IP address made up of four decimal bytes ranging from 0 to 255. IP address 0.0.0.0 is invalid.Format clear ip dhcp binding {
| *}Mode Privileged EXEC
clear ip dhcp server statistics
This command clears DHCP server statistics counters.
Format clear ip dhcp server statistics
Mode Privileged EXEC
clear ip dhcp conflict
The command is used to clear an address conflict from the DHCP Server database. The server detects conflicts using a ping. DHCP server clears all conflicts If the asterisk (*) character is used as the address parameter.
Default none
Format clear ip dhcp conflict {
| *}Mode Privileged EXEC
show ip dhcp binding
This command displays address bindings for the specific IP address on the DHCP server. If no IP address is specified, the bindings corresponding to all the addresses are displayed.
Format show ip dhcp binding [
]Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| IP address The IP | address of the client. |
| Hardware Address | The MAC Address or the client identifier. |
| Lease expiration | The lease expiration time of the IP address assigned to the client. |
| Type The manner | in which IP address was assigned to the client. |
show ip dhcp global configuration
This command displays address bindings for the specific IP address on the DHCP server. If no IP address is specified, the bindings corresponding to all the addresses are displayed.
Format show ip dhcp global configuration
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Service DHCP The field to display the status of dhcp protocol. | |
| Number of Ping Packets | The maximum number of Ping Packets that will be sent to verify that an ip address id not already assigned. |
| Conflict Logging | Shows whether conflict logging is enabled or disabled. |
| BootP Automatic | Shows whether BootP for dynamic pools is enabled or disabled. |
show ip dhcp pool configuration
This command displays pool configuration. If all is specified, configuration for all the pools is displayed.
Format show ip dhcp pool configuration {
Modes • Privileged EXEC
- User EXEC
| Field Definition | |
| Pool Name The name of the configured pool. | |
| Pool Type The pool type. | |
| Lease Time The lease expiration time of the IP address assigned to the client. | |
| DNS Servers The list of DNS servers available to the DHCP client . | |
| Default Routers The list of the default routers available to the DHCP client | |
The following additional field is displayed for Dynamic pool type:
| Field Definition | |
| Network The network number and the mask for the DHCP address pool. | |
The following additional fields are displayed for Manual pool type:
| Field Definition | |
| Client Name The name of a DHCP client. | |
| Client Identifier The unique identifier of a DHCP client. | |
| Hardware Address | The hardware address of a DHCP client. |
| Hardware Address Type | The protocol of the hardware platform. |
| Host The IP address and the mask for a manual binding to a DHCP client. | |
show ip dhcp server statistics
This command displays DHCP server statistics.
Format show ip dhcp server statistics
Modes • Privileged EXEC
- User EXEC
| Field Definition | |
| Automatic Bindings | The number of IP addresses that have been automatically mapped to the MAC addresses of hosts that are found in the DHCP database. |
| Expired Bindings | The number of expired leases. |
| Malformed Bindings | The number of truncated or corrupted messages that were received by the DHCP server. |
Message Received:
| Message Definition | |
| DHCP DISCOVER | The number of DHCPDISCOVER messages the server has received. |
| DHCP REQUEST | The number of DHCPREQUEST messages the server has received. |
| DHCP DECLINE | The number of DHCPDECLINE messages the server has received. |
| DHCP RELEASE | The number of DHCPRELEASE messages the server has received. |
| DHCP INFORM | The number of DHCPINFORM messages the server has received. |
Message Sent:
| Message Definition | |
| DHCP OFFER The number of DHCPOFFER messages the server sent. | |
| DHCP ACK The number of DHCPACK messages the server sent. | |
| DHCP NACK The number of DHCPNACK messages the server sent. | |
show ip dhcp conflict
This command displays address conflicts logged by the DHCP Server. If no IP address is specified, all the conflicting addresses are displayed.
Format show ip dhcp conflict [
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| IP address The IP address of the host as recorded on the DHCP server. | |
| Detection Method | The manner in which the IP address of the hosts were found on the DHCP Server. |
| Detection time The time when the conflict was found. | |
DNS Client Commands
These commands are used in the Domain Name System (DNS), an Internet directory service. DNS is how domain names are translated into IP addresses. When enabled, the DNS client provides a hostname lookup service to other components.
ip domain lookup
Use this command to enable the DNS client.
Default enabled
Format ip domain lookup
Mode Global Config
no ip domain lookup
Use this command to disable the DNS client.
Format no ip domain lookup
Mode Global Config
ip domain name
Use this command to define a default domain name that the software uses to complete unqualified host names (names with a domain name). By default, no default domain name is configured in the system.
Default none
Format ip domain name
Mode Global Config
Example: The CLI command ip domain name yahoo.com will configure yahoo.com as a default domain name. For an unqualified hostname xxx, a DNS query is made to find the IP address corresponding to xxx.yahoo.com.
no ip domain name
Use this command to remove the default domain name configured using the ip domain name command.
Format no ip domain name
Mode Global Config
ip domain list
Use this command to define a list of default domain names to complete unqualified names. By default, the list is empty. Each name must be no more than 256 characters, and should not include an initial period. The default domain name, configured using the ip domain name command, is used only when the default domain name list is empty. A maximum of 32 names can be entered in to this list.
Default none
Format ip domain list
Mode Global Config
no ip domain list
Use this command to delete a name from a list.
Format no ip domain list
Mode Global Config
ip name server
Use this command to configure the available name servers. Up to eight servers can be defined in one command or by using multiple commands. The parameter
Format ip name-server
Mode Global Config
no ip name server
Use this command to remove a name server.
Format no ip name-server [server-address1...server-address8]
Mode Global Config
ip host
Use this command to define static host name-to-address mapping in the host cache.
Default none
Format ip host
Mode Global Config
no ip host
Use this command to remove the name-to-address mapping.
Format no ip host
Mode Global Config
ipv6 host
Use this command to define static host name-to-IPv6 address mapping in the host cache.
Default none
Format ipv6 host
Mode Global Config
no ipv6 host
Use this command to remove the static host name-to-IPv6 address mapping in the host cache.
Format no ipv6 host
Mode Global Config
ip domain retry
Use this command to specify the number of times to retry sending Domain Name System (DNS) queries. The parameter
Default 2
Format ip domain retry
Mode Global Config
no ip domain retry
Use this command to return to the default.
Format no ip domain retry
Mode Global Config
ip domain timeout
Use this command to specify the amount of time to wait for a response to a DNS query. The parameter
Default 3
Format ip domain timeout
Mode Global Config
no ip domain timeout
Use this command to return to the default setting.
Format no ip domain timeout
Mode Global Config
clear host
Use this command to delete entries from the host name-to-address cache. This command clears the entries from the DNS cache maintained by the software. This command clears both IPv4 and IPv6 entries.
Format clear host {
Mode Privileged EXEC
| Field Description | |
| name | A particular host entry to remove. ranges from 1-255 characters. |
| all Removes all entries. | |
show hosts
Use this command to display the default domain name, a list of name server hosts, the static and the cached list of host names and addresses
Format show hosts [name]
Mode User EXEC
| Field Description | |
| Host Name Domain | n host name. |
| Default Domain | Default domain name. |
| Default Domain List | Default domain list. |
| Domain Name Lookup | DNS client enabled/disabled. |
| Number of Retries | Number of time to retry sending Domain Name System (DNS) queries. |
| Retry Timeout Period | Amount of time to wait for a response to a DNS query. |
| Name Servers | Configured name servers. |
Example: The following shows example CLI display output for the command.
Host name..... Device
Default domain...... gm.com
Default domain list...... yahoo.com, Stanford.edu, rediff.com
Domain Name lookup.... Enabled
Number of retries.... 5
Retry timeout period.... 1500
Name servers (Preference order)... 176.16.1.18 176.16.1.19
Configured host name-to-address mapping:
Host Addresses
accounting.gm.com 176.16.8.8
Host Total Elapsed Type Addresses
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Packet Capture Commands
Packet capture commands assist in troubleshooting protocol-related problems with the management CPU. The packets to and from the management CPU can be captured in an internally allocated buffer area for export to a PC host for protocol analysis. Public domain packet analysis tools like Ethereal can be used to decode and review the packets in detail. Capturing can be performed in a variety of modes, either transmit-side only, receive-side only, or both. The number of packets captured will depend on the size of the captured packets.
capture transmit packet
This command enables the capturing of transmit packets.
Format capture transmit packet
Mode Global Config
no capture transmit packet
This command disables the capturing of transmit packets.
Format no capture transmit packet
Mode Global Config
capture receive packet
This command enables the capturing of receive packets.
Format capture receive packet
Mode Global Config
no capture receive packet
This command disables the capturing of receive packets.
Format no capture receive packet
Mode Global Config
capture all packets
This command enables the capturing of receive packets.
Format capture all packet
Mode Global Config
no capture all packets
This command disables the capturing of all packets.
Format no capture all packets
Mode Global Config
capture wrap
This command enables the Buffer Wrapping configuration. Once the capture buffer is full, writes to the buffer will wrap around to allow continuous packet capture.
Format capture wrap
Mode Global Config
Default Enabled
show capture packets
This command displays packets being captured from the buffer. The output of the show command can be redirected to a text file. The resultant text file can be fed to the text2pcap utility or the Ethereal public domain packet analyzer, which can then be translated to a cap file.
Format show capture packets
Mode Global Config
Default Enabled
Serviceability Packet Tracing Commands
These commands improve the capability of network engineers to diagnose conditions affecting their managed switch product.

Caution! The output of “debug” commands can be long and may adversely affect system performance.
debug arp
Use this command to enable ARP debug protocol messages.
Default disabled
Format debug arp
Mode Privileged EXEC
no debug arp
Use this command to disable ARP debug protocol messages.
Format no debug arp
Mode Privileged EXEC
debug auto-voip
Use this command to enable Auto VOIP debug messages. Use the optional parameters to trace H323, SCCP, or SIP packets respectively.
Default disabled
Format debug auto-voip [H323|SCCP|SIP]
Mode Privileged EXEC
no debug auto-voip
Use this command to disable Auto VOIP debug messages.
Format no debug auto-voip
Mode Privileged EXEC
debug clear
This command disables all previously enabled “debug” traces.
Default disabled
Format debug clear
Mode Privileged EXEC
debug console
This command enables the display of “debug” trace output on the login session in which it is executed. Debug console display must be enabled in order to view any trace output. The output of debug trace commands will appear on all login sessions for which debug console has been enabled. The configuration of this command remains in effect for the life of the login session. The effect of this command is not persistent across resets.
Default disabled
Format debug console
Mode Privileged EXEC
no debug console
This command disables the display of “debug” trace output on the login session in which it is executed.
Format no debug console
Mode Privileged EXEC
debug dot1x packet
Use this command to enable dot1x packet debug trace.
Default disabled
Format debug dot1x
Mode Privileged EXEC
no debug dot1x packet
Use this command to disable dot1x packet debug trace.
Format no debug dot1x
Mode Privileged EXEC
debug igmpsnooping packet
This command enables tracing of IGMP Snooping packets received and transmitted by the switch.
Default disabled
Format debug igmpsnooping packet
Mode Privileged EXEC
no debug igmpsnooping packet
This command disables tracing of IGMP Snooping packets.
Format no debug igmpsnooping packet
Mode Privileged EXEC
debug igmpsnooping packet transmit
This command enables tracing of IGMP Snooping packets transmitted by the switch. Snooping should be enabled on the device and the interface in order to monitor packets for a particular interface.
Default disabled
Format debug igmpsnooping packet transmit
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 02:45:06 192.168.17.29-1 IGMPSNOOP[185429992]:
igmp_snooping_debug.c(116) 908 % Pkt TX - Intl: 1/0/20(20), Vlan_Id:1 Src_Mac:
00:03:0e:00:00:00 Dest_Mac: 01:00:5e:00:00:01 Src_IP: 9.1.1.1 Dest_IP: 225.0.0.1
Type: V2_Membership_Report Group: 225.0.0.1
The following parameters are displayed in the trace message:
| Parameter Definition | |
| TX A packet transmitted by the device. | |
| Intf | The interface that the packet went out on. Format used is unit/slot/port (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| Src_Mac Source MAC address of the packet. | |
| Dest_Mac Destination multicast MAC address of the packet. | |
| Src_IP The source IP address in the IP header in the packet. | |
| Dest_IP The destination multicast IP address in the packet. | |
| Type The type of IGMP packet. Type can be one of the following:Membership Query - IGMP Membership QueryV1_Membership_Report - IGMP Version 1 Membership ReportV2_Membership_Report - IGMP Version 2 Membership ReportV3_Membership_Report - IGMP Version 3 Membership ReportV2_Leave_Group - IGMP Version 2 Leave Group | |
| Group Multicast group address in the IGMP header. | |
no debug igmpsnooping transmit
This command disables tracing of transmitted IGMP snooping packets.
Format no debug igmpsnooping transmit
Mode Privileged EXEC
debug igmpsnooping packet receive
This command enables tracing of IGMP Snooping packets received by the switch. Snooping should be enabled on the device and the interface in order to monitor packets for a particular interface.
Default disabled
Format debug igmpsnooping packet receive
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 02:45:06 192.168.17.29-1 IGMPSNOOP[185429992]:
igmp_snooping_debug.c(116) 908 % Pkt RX - Intl: 1/0/20(20), Vlan_Id:1 Src_Mac:
00:03:0e:00:00:10 Dest_Mac: 01:00:5e:00:00:05 Src_IP: 11.1.1.1 Dest_IP: 225.0.0.5
Type: Membership_Query Group: 225.0.0.5
The following parameters are displayed in the trace message:
| Parameter Definition | |
| RX A packet received by the device. | |
| Intf | The interface that the packet went out on. Format used is unit/slot/port (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| Src_Mac Source | MAC address of the packet. |
| Dest_Mac Destination | multicast MAC address of the packet. |
| Src_IP The source | IP address in the ip header in the packet. |
| Dest_IP The destination | multicast ip address in the packet. |
| Type The type of IGMP packet. Type can be one of the following:Membership_Query - IGMP Membership QueryV1_Membership_Report - IGMP Version 1 Membership ReportV2_Membership_Report - IGMP Version 2 Membership ReportV3_Membership_Report - IGMP Version 3 Membership ReportV2_Leave_Group - IGMP Version 2 Leave Group | |
Parameter Definition
Group Multicast group address in the IGMP header.
no debug igmpsnooping receive
This command disables tracing of received IGMP Snooping packets.
Format no debug igmpsnooping receive
Mode Privileged EXEC
debug ip acl
Use this command to enable debug of IP Protocol packets matching the ACL criteria.
Default disabled
Format debug ip acl
Mode Privileged EXEC
no debug ip acl
Use this command to disable debug of IP Protocol packets matching the ACL criteria.
Format no debug ip acl
Mode Privileged EXEC
debug ip dvmrp packet
Use this command to trace DVMRP packet reception and transmission. receive traces only received DVMRP packets and transmit traces only transmitted DVMRP packets. When neither keyword is used in the command, then all DVMRP packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console
Default disabled
Format debug ip dvmrp packet [receive|transmit]
Mode Privileged EXEC
no debug ip dvmrp packet
Use this command to disable debug tracing of DVMRP packet reception and transmission.
Format no debug ip dvmrp packet [receive|transmit]
Mode Privileged EXEC
debug ip igmp packet
Use this command to trace IGMP packet reception and transmission. receive traces only received IGMP packets and transmit traces only transmitted IGMP packets. When neither keyword is used in the command, then all IGMP packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ip igmp packet [receive|transmit]
Mode Privileged EXEC
no debug ip igmp packet
Use this command to disable debug tracing of IGMP packet reception and transmission.
Format no debug ip igmp packet [receive|transmit]
Mode Privileged EXEC
debug ip mcache packet
Use this command for tracing MDATA packet reception and transmission. receive traces only received data packets and transmit traces only transmitted data packets. When neither keyword is used in the command, then all data packet traces are dumped. Vital information such as source address, destination address, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ip mcache packet [receive|transmit]
Mode Privileged EXEC
no debug ip mcache packet
Use this command to disable debug tracing of MDATA packet reception and transmission.
Format no debug ip mcache packet [receive|transmit]
Mode Privileged EXEC
debug ip pimdm packet
Use this command to trace PIMDM packet reception and transmission. receive traces only received PIMDM packets and transmit traces only transmitted PIMDM packets. When neither keyword is used in the command, then all PIMDM packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ip pimdm packet [receive|transmit]
Mode Privileged EXEC
no debug ip pimdm packet
Use this command to disable debug tracing of PIMDM packet reception and transmission.
Format no debug ip pimdm packet [receive|transmit]
Mode Privileged EXEC
debug ip pimsm packet
Use this command to trace PIMSM packet reception and transmission. receive traces only received PIMSM packets and transmit traces only transmitted PIMSM packets. When neither keyword is used in the command, then all PIMSM packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ip pimsm packet [receive|transmit]
Mode Privileged EXEC
no debug ip pimsm packet
Use this command to disable debug tracing of PIMSM packet reception and transmission.
Format no debug ip pimsm packet [receive|transmit]
Mode Privileged EXEC
debug ip vrrp
Use this command to enable VRRP debug protocol messages.
Default disabled
Format debug ip vrrp
Mode Privileged EXEC
no debug ip vrrp
Use this command to disable VRRP debug protocol messages.
Format no debug ip vrrp
Mode Privileged EXEC
debug ipv6 mcache packet
Use this command for tracing MDATAv6 packet reception and transmission. receive traces only received data packets and transmit traces only transmitted data packets. When neither keyword is used in the command, then all data packet traces are dumped. Vital information such as source address, destination address, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ipv6 mcache packet [receive|transmit]
Mode Privileged EXEC
no debug ipv6 mcache packet
Use this command to disable debug tracing of MDATAv6 packet reception and transmission.
Format no debug ipv6 mcache packet [receive|transmit]
Mode Privileged EXEC
debug ipv6 mld packet
Use this command to trace MLDv6 packet reception and transmission. receive traces only received MLDv6 packets and transmit traces only transmitted MLDv6 packets. When neither keyword is used in the command, then all MLDv6 packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ipv6 mld packet [receive|transmit]
Mode Privileged EXEC
no debug ipv6 mld packet
Use this command to disable debug tracing of MLDv6 packet reception and transmission.
Format no debug ipv6 mld packet [receive|transmit]
Mode Privileged EXEC
debug ipv6 pimdm packet
Use this command to trace PIMDMv6 packet reception and transmission. receive traces only received PIMDMv6 packets and transmit traces only transmitted PIMDMv6 packets. When neither keyword is used in the command, then all PIMDMv6 packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ipv6 pimdm packet [receive|transmit]
Mode Privileged EXEC
no debug ipv6 pimdm packet
Use this command to disable debug tracing of PIMDMv6 packet reception and transmission.
debug ipv6 pimsm packet
Use this command to trace PIMSMv6 packet reception and transmission. receive traces only received PIMSMv6 packets and transmit traces only transmitted PIMSMv6 packets. When neither keyword is used in the command, then all PIMSMv6 packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug ipv6 pimsm packet [receive|transmit]
Mode Privileged EXEC
no debug ipv6 pimsm packet
Use this command to disable debug tracing of PIMSMv6 packet reception and transmission.
Format no debug ipv6 pimsm packet [receive|transmit]
Mode Privileged EXEC
debug lacp packet
This command enables tracing of LACP packets received and transmitted by the switch.
Default disabled
Format debug lacp packet
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 14:04:51 10.254.24.31-1 DOT3AD[183697744]: dot3ad_debug.c(385) 58 % Pkt TX - Intl: 1/0/1(1), Type: LACP, Sys: 00:11:88:14:62:e1, State: 0x47, Key: 0x36
no debug lacp packet
This command disables tracing of LACP packets.
Format no debug lacp packet
Mode Privileged EXEC
debug mldsnooping packet
Use this command to trace MLD snooping packet reception and transmission. receive traces only received MLD snooping packets and transmit traces only transmitted MLD snooping packets.
When neither keyword is used in the command, then all MLD snooping packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
Default disabled
Format debug mldsnooping packet [receive|transmit]
Mode Privileged EXEC
no debug mldsnooping packet
Use this command to disable debug tracing of MLD snooping packet reception and transmission.
debug ospf packet
This command enables tracing of OSPF packets received and transmitted by the switch.
Default disabled
Format debug ospf packet
Mode Privileged EXEC
Sample outputs of the trace messages are shown below.
<15> JAN 02 11:03:31 10.50.50.1-2 OSPF[46300472]: ospf_debug.c(297) 25430 % Pkt RX - Intf:2/0/48 Src
Ip:192.168.50.2 DestIp:224.0.0.5 AreaId:0.0.0.0 Type:HELLO NetMask:255.255.255.0
DesigRouter:0.0.0.0 Backup:0.0.0.0
<15> JAN 02 11:03:35 10.50.50.1-2 OSPF[46300472]: ospf_debug.c(293) 25431 % Pkt TX - Intf:2/0/48 Src
Ip:10.50.50.1 DestIp:192.168.50.2 AreaId:0.0.0.0 Type:DB_DSCR Mtu:1500 Options:E Flags: I/M/MS Seq:126166
<15> JAN 02 11:03:36 10.50.50.1-2 OSPF[46300472]: ospf_debug.c(297) 25434 % Pkt RX - Intf:2/0/48 Src
Ip:192.168.50.2 DestIp:192.168.50.1 AreaId:0.0.0.0 Type:LS_REQ Length: 1500
<15> JAN 02 11:03:36 10.50.50.1-2 OSPF[46300472]: ospf_debug.c(293) 25435 % Pkt TX - Intf:2/0/48 Src
Ip:10.50.50.1 DestIp:192.168.50.2 AreaId:0.0.0.0 Type:LS_UPD Length: 1500
<15> JAN 02 11:03:37 10.50.50.1-2 OSPF[46300472]: ospf_debug.c(293) 25441 % Pkt TX - Intf:2/0/48 Src
Ip:10.50.50.1 DestIp:224.0.0.6 AreaId:0.0.0.0 Type:LS_ACK Length: 1500
The following parameters are displayed in the trace message:
| Parameter Definition | |
| TX/RX TX refers to | a packet transmitted by the device. RX refers to packets received by the device. |
| Intf | The interface that the packet came in or went out on. Format used is unit/slot/port (internal interface number). |
| Srclp The source IP address in the IP header of the packet. | |
| Destlp The destination IP address in the IP header of the packet. | |
| Areald The area ID in the OSPF header of the packet. | |
| Type Could be one of the following:HELLO – Hello packetDB_DSCR – Database descriptorLS_REQ – LS RequestLS_UPD – LS UpdateLS_ACK – LS Acknowledge | |
The remaining fields in the trace are specific to the type of OSPF Packet.
HELLO packet field definitions:
| Parameter Definition |
| Netmask The netmask in the hello packet. |
| DesignRouter Designated Router IP address. |
| Backup Backup router IP address. |
DB_DSCR packet field definitions:
| Field Definition | |
| MTU MTU | |
| Options Options in the OSPF packet. | |
| Flags Could be one or more of the following:• I – Init• M – More• MS – Master/Slave | |
| Seq Sequence Number of the DD packet. | |
LS_REQ packet field definitions.
| Field Definition | |
| Length Length of packet | |
LS_UPD packet field definitions.
| Field Definition | |
| Length Length of packet | |
LS_ACK packet field definitions.
| Field Definition | |
| Length Length of packet | |
no debug ospf packet
This command disables tracing of OSPF packets.
Format no debug ospf packet
Mode Privileged EXEC
debug ospfv3 packet
Use this command to enable OSPFv3 packet debug trace.
Default disabled
Format debug ospfv3 packet
Mode Privileged EXEC
no debug ospfv3 packet
Use this command to disable tracing of OSPFv3 packets.
Format no debug ospfv3 packet
Mode Privileged EXEC
debug ping packet
This command enables tracing of ICMP echo requests and responses. The command traces pings on the network port/ serviceport for switching packages. For routing packages, pings are traced on the routing ports as well.
Default disabled
Format debug ping packet
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 00:21:22 192.168.17.29-1 SIM[181040176]: sim_debug.c(128) 20 % Pkt TX - Intf: 1/0/1(1),
SRC_IP:10.50.50.2, DEST_IP:10.50.50.1, Type:ECHO_REQUEST
<15> JAN 01 00:21:22 192.168.17.29-1 SIM[182813968]: sim_debug.c(82) 21 % Pkt RX - Intf: 1/0/1(1), S
RC_IP:10.50.50.1, DEST_IP:10.50.50.2, Type:ECHO_REPLY
The following parameters are displayed in the trace message:
| Parameter Definition | |
| TX/RX TX refers to | a packet transmitted by the device. RX refers to packets received by the device. |
| Intf | The interface that the packet came in or went out on. Format used is unit/slot/port (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| SRC_IP The source | IP address in the IP header in the packet. |
| DEST_IP The destination | IP address in the IP header in the packet. |
| Type Type determines whether or not the ICMP message is a REQUEST or a RESPONSE. | |
no debug ping packet
This command disables tracing of ICMP echo requests and responses.
Format no debug ping packet
Mode Privileged EXEC
debug rip packet
This command turns on tracing of RIP requests and responses. This command takes no options. The output is directed to the log file.
Default disabled
Format debug rip packet
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 00:35:15 192.168.17.29-1 RIP[181783160]: rip_map_debug.c(96) 775 %
Pkt RX on Intf: 1/0/1(1), Src_IP:43.1.1.1 Dest_IP:43.1.1.2
Rip_Version: RIPv2 Packet_Type:RIP_RESPONSE
ROUTE 1): Network: 10.1.1.0 Mask: 255.255.255.0 Metric: 1
ROUTE 2): Network: 40.1.0.0 Mask: 255.255.0.0 Metric: 1
ROUTE 3): Network: 10.50.50.0 Mask: 255.255.255.0 Metric: 1
ROUTE 4): Network: 41.1.0.0 Mask: 255.255.0.0 Metric: 1
ROUTE 5): Network:42.0.0.0 Mask:255.0.0.0 Metric:1
Another 6 routes present in packet not displayed.
The following parameters are displayed in the trace message:
| Parameter Definition | |
| TX/RX TX refers to | a packet transmitted by the device. RX refers to packets received by the device. |
| Intf | The interface that the packet came in or went out on. Format used is unit/slot/port (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| Src_IP The source | IP address in the IP header of the packet. |
| Dest_IP The destination | IP address in the IP header of the packet. |
| Rip_Version RIP version used | . |
| Packet_Type Type of RIP packet. | . |
| Routes Up to 5 routes in the packet are displayed in the following format:Network:MaskNext_HopMetricThe next hop is only displayed if it is different from 0.0.0.0.For RIPv1 packets, Mask is always 0.0.0.0. | |
| Number of routes not printed | Only the first five routes present in the packet are included in the trace. There is another notification of the number of additional routes present in the packet that were not included in the trace. |
no debug rip packet
This command disables tracing of RIP requests and responses.
Format no debug rip packet
Mode Privileged EXEC
debug sflow packet
Use this command to enable sFlow debug packet trace.
Default disabled
Format debug sflow packet
Mode Privileged EXEC
no debug sflow packet
Use this command to disable sFlow debug packet trace.
Format no debug sflow packet
Mode Privileged EXEC
debug spanning-tree bpdu
This command enables tracing of spanning tree BPDUs received and transmitted by the switch.
Default disabled
Format debug spanning-tree bpdu
Mode Privileged EXEC
no debug spanning-tree bpdu
This command disables tracing of spanning tree BPDUs.
Format no debug spanning-tree bpdu
Mode Privileged EXEC
debug spanning-tree bpdu receive
This command enables tracing of spanning tree BPDUs received by the switch. Spanning tree should be enabled on the device and on the interface in order to monitor packets for a particular interface.
Default disabled
Format debug spanning-tree bpdu receive
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 01:02:04 192.168.17.29-1 DOT1S[191096896]: dot1s_debug.c(1249) 101 % Pkt RX - Intf: 1/0/9(9), Source_Mac: 00:11:88:4e:c2:10 Version: 3, Root Mac: 00:11:88:4e:c2:00, Root Priority: 0x8000 Path Cost: 0
The following parameters are displayed in the trace message:
| Parameter Definition | |
| RX A packet received by the device. | |
| Intf | The interface that the packet came in on. Format used is unit/port/slot (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| Source_Mac Source MAC address of the packet. | |
| Version Spanning | tree protocol version (0-3). 0 refers to STP, 2 RSTP and 3 MSTP. |
| Root_Mac MAC address of the CIST root bridge. | |
| Root_Priority | Priority of the CIST root bridge. The value is between 0 and 61440. It is displayed in hex in multiples of 4096. |
| Path_Cost External root path cost component of the BPDU. | |
no debug spanning-tree bpdu receive
This command disables tracing of received spanning tree BPDUs.
Format no debug spanning-tree bpdu receive
Mode Privileged EXEC
debug spanning-tree bpdu transmit
This command enables tracing of spanning tree BPDUs transmitted by the switch. Spanning tree should be enabled on the device and on the interface in order to monitor packets on a particular interface.
Default disabled
Format debug spanning-tree bpdu transmit
Mode Privileged EXEC
A sample output of the trace message is shown below.
<15> JAN 01 01:02:04 192.168.17.29-1 DOT1S[191096896]: dot1s_debug.c(1249) 101 % Pkt TX - Intf: 1/0/7(7), Source_Mac: 00:11:88:4e:c2:00 Version: 3, Root_Mac: 00:11:88:4e:c2:00, Root_Priority: 0x8000 Path_Cost: 0
The following parameters are displayed in the trace message:
| Parameter Definition | |
| TX A packet transmitted by the device. | |
| Intf | The interface that the packet went out on. Format used is unit/port/slot (internal interface number). Unit is always shown as 1 for interfaces on a non-stacking device. |
| Source_Mac Source MAC address of the packet. | |
| Version Spanning | tree protocol version (0-3). 0 refers to STP, 2 RSTP and 3 MSTP. |
| Root_Mac MAC address of the CIST root bridge. | |
| Root_Priority | Priority of the CIST root bridge. The value is between 0 and 61440. It is displayed in hex in multiples of 4096. |
| Path_Cost External root path cost component of the BPDU. | |
no debug spanning-tree bpdu transmit
This command disables tracing of transmitted spanning tree BPDUs.
Format no debug spanning-tree bpdu transmit
Mode Privileged EXEC
Cable Test Command
The cable test feature enables you to determine the cable connection status on a selected port.

Note: The cable test feature is supported only for copper cable. It is not supported for optical fiber cable. If the port has an active link while the cable test is run, the link can go down for the duration of the test.
cablestatus
This command returns the status of the specified port.
Format cablestatus
Mode Privileged EXEC
| Field Description | |
| Cable Status One | of the following statuses is returned:Normal:The cable is working correctly.Open:The cable is disconnected or there is a faulty connector.Short:There is an electrical short in the cable.Cable Test Failed:The cable status could not be determined. The cable may in fact be working. |
| Cable Length | If this feature is supported by the PHY for the current link speed, the cable length is displayed as a range between the shortest estimated length and the longest estimated length. Note that if the link is down and a cable is attached to a 10/100 Ethernet adapter, then the cable status may display as Open or Short because some Ethernet adapters leave unused wire pairs unterminated or grounded. Unknown is displayed if the cable length could not be determined. |
sFlow Commands
sFlow ^® is the standard for monitoring high-speed switched and routed networks. sFlow technology is built into network equipment and gives complete visibility into network activity, enabling effective management and control of network resources.
sflow receiver
Use this command to configure the sFlow collector parameters (owner string, receiver timeout, max datagram size, IP address, and port).
Format sflow receiver
Mode Global Config
| Field Description | |
| Receiver Owner | The identity string for the receiver, the entity making use of this sFlowRcvrTable entry. The range is 127 characters. The default is a null string. The empty string indicates that the entry is currently unclaimed and the receiver configuration is reset to the default values. An entity wishing to claim an sFlowRcvrTable entry must ensure that the entry is unclaimed before trying to claim it. The entry is claimed by setting the owner string to a non-null value. The entry must be claimed before assigning a receiver to a sampler or poller. |
| Receiver Timeout | The time, in seconds, remaining before the sampler or poller is released and stops sending samples to receiver. A management entity wanting to maintain control of the sampler is responsible for setting a new value before the old one expires. The allowed range is 0-4294967295 seconds. The default is zero (0). |
| Receiver Max Datagram Size | The maximum number of data bytes that can be sent in a single sample datagram. The management entity should set this value to avoid fragmentation of the sFlow datagrams. The allowed range is 200 to 9116). The default is 1400. |
| Receiver IP | The sFlow receiver IP address. If set to 0.0.0.0, no sFlow datagrams will be sent. The default is 0.0.0.0. |
| Receiver Port | The destination Layer4 UDP port for sFlow datagrams. The range is 1-65535. The default is 6343. |
no sflow receiver
Use this command to set the sFlow collector parameters back to the defaults.
Format no sflow receiver
Mode Global Config
sflow sampler
A data source configured to collect flow samples is called a poller. Use this command to configure a new sFlow sampler instance for this data source if rcvr_idx is valid.
Format sflow sampler {
Mode Interface Config
| Field Description | |
| Receiver Index | The sFlow Receiver for this sFlow sampler to which flow samples are to be sent. A value of zero (0) means that no receiver is configured, no packets will be sampled. Only active receivers can be set. If a receiver expires, then all samplers associated with the receiver will also expire. Possible values are 1-8. The default is 0. |
| Maxheadersize | The maximum number of bytes that should be copied from the sampler packet. The range is 20-256. The default is 128. When set to zero (0), all the sampler parameters are set to their corresponding default value. |
| Sampling Rate | The statistical sampling rate for packet sampling from this source. A sampling rate of 1 counts all packets. A value of zero (0) disables sampling. A value of N means that out of N incoming packets, 1 packet will be sampled. The range is 1024-65536 and 0. The default is 0. |
no sflow sampler
Use this command to reset the sFlow sampler instance to the default settings.
Format no sflow sampler {
Mode Interface Config
sflow poller
A data source configured to collect counter samples is called a poller. Use this command to enable a new sFlow poller instance for this data source if
Format sflow poller {
Mode Interface Config
| Field Description | |
| Receiver Index | Enter the sFlow Receiver associated with the sampler/poller. A value of zero (0) means that no receiver is configured. The range is 1-8. The default is 0. |
| Poll Interval | Enter the sFlow instance polling interval. A poll interval of zero (0) disables counter sampling. When set to zero (0), all the poller parameters are set to their corresponding default value. The range is 0-86400. The default is 0. A value of N means once in N seconds a counter sample is generated. |
no sflow poller
Use this command to reset the sFlow poller instance to the default settings.
Format no sflow poller {
Mode Interface Config
show sflow agent
The sFlow agent collects time-based sampling of network interface statistics and flow-based samples. These are sent to the configured sFlow receivers. Use this command to display the sFlow agent information.
Format show sflow agent
Mode Privileged EXEC
| Field Description | |
| sFlow Version | Uniquely identifies the version and implementation of this MIB. The version string must have the following structure: MIB Version; Organization; Software Revision where:• MIB Version: ‘1.3’, the version of this MIB.• Organization: Netgear.• Revision: 1.0 |
| IP Address The IP | address associated with this agent. |
Example: The following shows example CLI display output for the command.
(switch) #show sflow agent
sFlow Version.... 1.3;Netgear;1.0
IP Address.... 10.131.12.66
show sflow pollers
Use this command to display the sFlow polling instances created on the switch. Use “-” for range.
Format show sflow pollers
Mode Privileged EXEC
| Field Description | |
| Poller Data Source | The sFlowDataSource (slot/port) for this sFlow sampler. This agent will support Physical ports only. |
| Receiver Index The | the sFlowReceiver associated with this sFlow counter poller. |
| Poller Interval | The number of seconds between successive samples of the counters associated with this data source. |
show sflow receivers
Use this command to display configuration information related to the sFlow receivers.
Format show sflow receivers [
Mode Privileged EXEC
| Field Description | |
| Receiver Index The sFlow Receiver associated with the sampler/poller. | |
| Owner String | The identity string for receiver, the entity making use of this sFlowRcvrTable entry. |
| Time Out The time (in seconds) remaining before the receiver is released and stops sending samples to sFlow receiver. | |
| Max Datagram Size | The maximum number of bytes that can be sent in a single sFlow datagram. |
| Port The destination Layer4 UDP port for sFlow datagrams. | |
| IP Address The sFlow receiver IP address. | |
| Address Type | The sFlow receiver IP address type. For an IPv4 address, the value is 1 and for an IPv6 address, the value is 2. |
| Datagram Version | The sFlow protocol version to be used while sending samples to sFlow receiver. |
Example: The following shows example CLI display output for the command.
(switch) #show sflow receivers 1 Receiver Index.... 1 Owner String..... Time out.... 0 IP Address:.... 0.0.0.0 Address Type.... 1 Port.... 6343
Datagram Version.... 5 Maximum Datagram Size.... 1400
show sflow samplers
Use this command to display the sFlow sampling instances created on the switch.
Format show sflow samplers
Mode Privileged EXEC
| Field Description | |
| Sampler Data Source | The sFlowDataSource (slot/port) for this sFlow sampler. This agent will support Physical ports only. |
| Receiver Index The | the sFlowReceiver configured for this sFlow sampler. |
| Packet Sampling Rate | The statistical sampling rate for packet sampling from this source. |
| Max Header Size | The maximum number of bytes that should be copied from a sampled packet to form a flow sample. |
Software License Commands
Release 8.0.3 allows the switches (GSM73xxSv1 and GSM72xxPS) to be licensed such that this switch can configure advanced features.
This following table lists the software license matrix for all GSM series of switches:
| Switch IPv4 Routing IPv6 Routing IP Multicast | ||
| GSM73xxSv2 Available Available Available | ||
| GSM72xxPS Licensed Licensed | ||
| GSM73xxSv1 Available Licensed Licensed |
Note: Software license will only be available on the Master unit if GSM72xxPS or GSM73xxSv1 is the Master of the stack. It will not be available in case GSM73xxSv2 is the Master of a Stack.
Note: Software license will allow the user to download a license file only on the Master unit. The file cannot be downloaded on a Slave unit (even if the Slave unit is a Licensable switch like GSM72xxPS or GSM73xxSv1)
Note: There are two options to download the license file to the switch:
1). Use the command Copy to download the license file through the CLI.
2). Go to the Maintenance > Download page to download the licence file through the GUI.
show license
This command displays the license status.
License Date indicates the date of the license. License Status indicates whether license is active or inactive.
Format show license
Mode Privileged EXEC
Example: The following shows example CLI display output for the command.
(GSM7352PS) #show license
License date : Apr-9-2010
License copy : 1
License Status: Active
Description : License key is active.
(GSM7352PS) #
show license features
This command displays the features that are licensed on the switch
Format show license features
Mode Privileged EXEC
Example: The following shows example CLI display output for the command.
(GSM7252PS) #show license features
IGMP
MCAST
PIMDM
DVMRP
PIMSM
OSPFV3
IPV6
Chapter 10
Management Commands
This chapter describes the management commands available in the managed switch CLI.
The Management Commands chapter contains the following sections:
- “Configuring the Switch Management CPU” on page 10-2.
- “Console Port Access Commands” on page 10-8.
- “Telnet Commands” on page 10-11.
- “Secure Shell (SSH) Commands” on page 10-16.
- “Management Security Commands” on page 10-19.
- “Hypertext Transfer Protocol (HTTP) Commands” on page 10-20.
- “Access Commands” on page 10-28.
- “User Account Commands” on page 10-29.
- “SNMP Commands” on page 10-40.
- “RADIUS Commands” on page 10-52.
- “TACACS+ Commands” on page 10-67.
- “Configuration Scripting Commands” on page 10-71.
- “Pre-login Banner and System Prompt Commands” on page 10-73.

Warning: The commands in this chapter are in one of three functional groups:
- Show commands display switch settings, statistics, and other information.
- Configuration commands configure features and options of the switch. For every configuration command, there is a show command that displays the configuration setting.
- Clear commands clear some or all of the settings to factory defaults.
Configuring the Switch Management CPU
To manage the switch via the web GUI or telnet, an IP address needs to be assigned to the switch management CPU. Whereas there are CLI commands that can be used to do this, ezconfig simplifies the task. The tool is applicable to all NETGEAR 7000-series managed switches, and allows you to configure the following parameters:
- The administrator's user password and administrator-enable password
- Management CPU IP address and network mask
- System name and location information
The tool is interactive and uses questions to guide you through the steps required to perform its task. At the end of the session, it will ask you if you want to save the changed information. To see exactly what has been changed by ezconfig at the end of the session, use the show running-config command.
To perform any switch configuration other than the items listed above, use other CLI commands or the Web GUI.
ezconfig
This command sets the IP address, subnet mask and gateway of the device. The IP address and the gateway must be on the same subnet.
Format ezconfig
Mode Privileged EXEC
The following is an example of an ezconfig session.
NETGEAR EZ Configuration Utility
Hello and Welcome!
This utility will walk you thru assigning the IP address for the switch management CPU. It will allow you to save the changes at the end. After the session, simply use the newly assigned IP address to access the Web GUI using any public domain Web browser.
Admin password not defined. Do you want to change the password?
(Y/N/Q) y
Enter new password:*****
Confirm new password:*****
Password Changed!
The 'enable' password required for switch configuration via the command line interface is currently not configured. Do you wish to change it (Y/N/Q)? y
Enter new password:*****
Confirm new password:*****
Password Changed!
Assigning an IP address to your switch management
Current IP Address Configuration
IP address: 0.0.0.0
Subnet mask: 0.0.0.0
Gateway address: 0.0.0.0
Would you like to assign an IP address now (Y/N/Q)? y
IP Address: 10.10.10.1
Subnet mask: 255.255.255.0
Gateway address: 10.10.10.10
Do you want to assign switch name and location information (Y/N/Q)? y
System Name: testunit1
System Location: testlab
System Contact: Bud Lightyear
There are changes detected, do you wish to save the changes permanently (Y/N)? y
The configuration changes have been saved successfully. Please enter 'show running-config' to see the final configuration.
Thanks for using EzConfig!
Network Interface Commands
This section describes the commands you use to configure a logical interface for management access. To configure the management VLAN, see “network mgmt_vlan” on page 3-31.
enable (Privileged EXEC access)
This command gives you access to the Privileged EXEC mode. From the Privileged EXEC mode, you can configure the network interface.
Format enable
Mode User EXEC
network parms
This command sets the IP address, subnet mask and gateway of the device. The IP address and the gateway must be on the same subnet.
Format network parms
Mode Privileged EXEC
network protocol
This command specifies the network configuration protocol to be used. If you modify this value, change is effective immediately. If you use the bootp parameter, the switch periodically sends requests to a BootP server until a response is received. If you use the dhcp parameter, the switch periodically sends requests to a DHCP server until a response is received. If you use the none parameter, you must configure the network information for the switch manually.
Default none
Format network protocol {none | bootp | dhcp}
Mode Privileged EXEC
network mac-address
This command sets locally administered MAC addresses. The following rules apply:
- Bit 6 of byte 0 (called the U/L bit) indicates whether the address is universally administered (b'0') or locally administered (b'1').
- Bit 7 of byte 0 (called the I/G bit) indicates whether the destination address is an individual address (b'0') or a group address (b'1').
- The second character, of the twelve character macaddr, must be 2, 6, A or E.
A locally administered address must have bit 6 On (b'1') and bit 7 Off (b'0').
Format network mac-address
Mode Privileged EXEC
network mac-type
This command specifies whether the switch uses the burned in MAC address or the locally-administered MAC address.
Default burnedin
Format network mac-type {local | burnedin}
Mode Privileged EXEC
no network mac-type
This command resets the value of MAC address to its default.
Format no network mac-type
Mode Privileged EXEC
network javamode
This command specifies whether or not the switch should allow access to the Java applet in the header frame of the Web interface. When access is enabled, the Java applet can be viewed from the Web interface. When access is disabled, the user cannot view the Java applet.
Default enabled
Format network javamode
Mode Privileged EXEC
no network javamode
This command disallows access to the Java applet in the header frame of the Web interface. When access is disabled, the user cannot view the Java applet.
Format no network javamode
Mode Privileged EXEC
show network
This command displays configuration settings associated with the switch's network interface. The network interface is the logical interface used for in-band connectivity with the switch via any of the switch's front panel ports. The configuration parameters associated with the switch's network interface do not affect the configuration of the front panel ports through which traffic is switched or routed. The network interface is always considered to be up, whether or not any member ports are up; therefore, the show network command will always show “Interface Status” as “Up”.
Format show network
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Interface Status | The network interface status; it is always considered to be “up”. |
| IP Address The IP | address of the interface. The factory default value is 0.0.0.0. |
| Subnet Mask The | IP subnet mask for this interface. The factory default value is 0.0.0.0. |
| Default Gateway | The default gateway for this IP interface. The factory default value is 0.0.0.0. |
| IPv6 Administrative Mode | Whether enabled or disabled. |
| IPv6 Address/Length | The IPv6 address and length. |
| IPv6 Default Router | The IPv6 default router address. |
| Burned In MAC Address | The burned in MAC address used for in-band connectivity. |
| Locally Administered MAC Address | If desired, a locally administered MAC address can be configured for in-band connectivity. To take effect, 'MAC Address Type' must be set to 'Locally Administered'. Enter the address as twelve hexadecimal digits (6 bytes) with a colon between each byte. Bit 1 of byte 0 must be set to a 1 and bit 0 to a 0, i.e. byte 0 should have the following mask 'xxxx xx10'. The MAC address used by this bridge when it must be referred to in a unique fashion. It is recommended that this be the numerically smallest MAC address of all ports that belong to this bridge. However it is only required to be unique. When concatenated with dot1dStpPriority a unique Bridgeldentifier is formed which is used in the Spanning Tree Protocol. |
| MAC Address Type | The MAC address which should be used for in-band connectivity. The choices are the burned in or the Locally Administered address. The factory default is to use the burned in MAC address. |
The following shows example CLI display output for the network port.
(Netgear Switch) #show network
| Interface Status...... | Always Up |
| IP Address...... | 10.250.3.1 |
| Subnet Mask...... | 255.255.255.0 |
| Default Gateway...... | 10.250.3.3 |
| IPv6 Administrative Mode...... | Enabled |
| IPv6 Address/Length is ...... | FE80::210:18FF:FE82:337/64 |
| IPv6 Address/Length is ...... | 3099::1/64 |
| IPv6 Address/Length is ...... | 3099::210:18FF:FE82:337/64 |
| IPv6 Default Router is ...... | FE80::204:76FF:FE73:423A |
| Burned In MAC Address...... | 00:10:18:82:03:37 |
| Locally Administered MAC Address...... | 00:00:00:00:00:00 |
| MAC Address Type...... | Burned In |
| Network Configuration Protocol Current...... | None |
Management VLAN ID.... 1 Web Mode.... Enable Java Mode.... Enable
Console Port Access Commands
This section describes the commands you use to configure the console port. You can use a serial cable to connect a management host directly to the console port of the switch.
configuration
This command gives you access to the Global Config mode. From the Global Config mode, you can configure a variety of system settings, including user accounts. From the Global Config mode, you can enter other command modes, including Line Config mode.
Format configuration
Mode Privileged EXEC
line
This command gives you access to the Line Config mode, which allows you to configure various Telnet settings, ssh settings, and the console port.
Format line {console | telnet | ssh}
Mode Global Config
serial baudrate
This command specifies the communication rate of the terminal interface. The supported rates are 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200.
Default 9600
Format serial baudrate {1200 | 2400 | 4800 | 9600 | 19200 | 38400 | 57600 | 115200}
Mode Line Config
no serial baudrate
This command sets the communication rate of the terminal interface.
Format no serial baudrate
Mode Line Config
serial timeout
This command specifies the maximum connect time (in minutes) without console activity. A value of 0 indicates that a console can be connected indefinitely. The time range is 0 to 160.
Default 5
Format serial timeout <0-160>
Mode Line Config
no serial timeout
This command sets the maximum connect time (in minutes) without console activity.
Format no serial timeout
Mode Line Config
login authentication
To specify login authentication method list for remote telnet or console, use the login authentication command in line configuration mode.
Format login authentication {default | list-name}
Mode Line Config
no login authentication
To return to the default specified by the login authentication command.
Format no login authentication {default | list-name}
Mode Line Config
enable authentication
To specify authentication method list when the user accesses a higher privilege level in remote telnet or console, use the enable authentication command in line configuration mode..
Format enable authentication {default | list-name}
Mode Line Config
no enable authentication
To return to the default specified by the enable authentication command.
Format no enable authentication {default | list-name}
Mode Line Config
show serial
This command displays serial communication settings for the switch.
Format show serial
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Serial Port Login Timeout(minutes) | The time, in minutes, of inactivity on a Serial port connection, after which the Switch will close the connection. Any numeric value between 0 and 160 is allowed, the factory default is 5. A value of 0 disables the timeout. |
| Baud Rate (bps) | The default baud rate at which the serial port will try to connect. The available values are 1200, 2400, 4800, 9600, 19200, 38400,57600, and 115200 baud. The factory default is 9600 baud. |
| Character Size(bits) | The number of bits in a character. The number of bits is always 8. |
| Flow Control | Whether Hardware Flow-Control is enabled or disabled. Hardware Flow Control is always disabled. |
| Stop Bits The number of Stop bits per character. The number of Stop bits is always 1. | |
| Parity Type The Parity Method used on the Serial Port. The Parity Method is always None. | |
Telnet Commands
This section describes the commands you use to configure and view Telnet settings. You can use Telnet to manage the device from a remote management host.
ip telnet server enable
Use this command to enable Telnet connections to the system and to enable the Telnet Server Admin Mode. This command opens the Telnet listening port.
Default enabled
Format ip telnet server enable
Mode Privileged EXEC
no ip telnet server enable
Use this command to disable Telnet access to the system and to disable the Telnet Server Admin Mode. This command closes the Telnet listening port and disconnects all open Telnet sessions.
Format no ip telnet server enable
Mode Privileged EXEC
telnet
This command establishes a new outbound Telnet connection to a remote host. The host value must be a valid IP address or host name. Valid values for port should be a valid decimal integer in the range of 0 to 65535, where the default value is 23. If [debug] is used, the current Telnet options enabled is displayed. The optional line parameter sets the outbound Telnet operational mode as 'linemode' where, by default, the operational mode is 'character mode'. The noecho option disables local echo.
Format telnet
Modes • Privileged EXEC
- User EXEC
transport input telnet
This command regulates new Telnet sessions. If enabled, new Telnet sessions can be established until there are no more sessions available. An established session remains active until the session is ended or an abnormal network error ends the session.

Note: If the Telnet Server Admin Mode is disabled, Telnet sessions cannot be established. Use the ip telnet server enable command to enable Telnet Server Admin Mode.
Default enabled
Format transport input telnet
Mode Line Config
no transport input telnet
Use this command to prevent new Telnet sessions from being established.
Format no transport input telnet
Mode Line Config
transport output telnet
This command regulates new outbound Telnet connections. If enabled, new outbound Telnet sessions can be established until the system reaches the maximum number of simultaneous outbound Telnet sessions allowed. An established session remains active until the session is ended or an abnormal network error ends it.
Default enabled
Format transport output telnet
Mode Line Config
no transport output telnet
Use this command to prevent new outbound Telnet connection from being established.
Format no transport output telnet
Mode Line Config
session-limit
This command specifies the maximum number of simultaneous outbound Telnet sessions. A value of 0 indicates that no outbound Telnet session can be established.
Default 5
Format session-limit <0-5>
Mode Line Config
no session-limit
This command sets the maximum number of simultaneous outbound Telnet sessions to the default value.
Format no session-limit
Mode Line Config
session-timeout
This command sets the Telnet session timeout value. The timeout value unit of time is minutes.
Default 5
Format session-timeout <1-160>
Mode Line Config
no session-timeout
This command sets the Telnet session timeout value to the default. The timeout value unit of time is minutes.
Format no session-timeout
Mode Line Config
telnetcon maxsessions
This command specifies the maximum number of Telnet connection sessions that can be established. A value of 0 indicates that no Telnet connection can be established. The range is 0-5.
Default 4
Format telnetcon maxsessions <0-4>
Mode Privileged EXEC
no telnetcon maxsessions
This command sets the maximum number of Telnet connection sessions that can be established to the default value.
Format no telnetcon maxsessions
Mode Privileged EXEC
telnetcon timeout
This command sets the Telnet connection session timeout value, in minutes. A session is active as long as the session has not been idle for the value set. The time is a decimal value from 1 to 160.

Note: When you change the timeout value, the new value is applied to all active and inactive sessions immediately. Any sessions that have been idle longer than the new timeout value are disconnected immediately.
Default 5
Format telnetcon timeout <1-160>
Mode Privileged EXEC
no telnetcon timeout
This command sets the Telnet connection session timeout value to the default.

Note: Changing the timeout value for active sessions does not become effective until the session is reaccessed. Also, any keystroke activates the new timeout duration.
Format no telnetcon timeout
Mode Privileged EXEC
show telnet
This command displays the current outbound Telnet settings. In other words, these settings apply to Telnet connections initiated from the switch to a remote system.
Format show telnet
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Outbound Telnet Login Timeout | The number of minutes an outbound Telnet session is allowed to remain inactive before being logged off. |
| Maximum Number of Outbound Telnet Sessions | The number of simultaneous outbound Telnet connections allowed. |
| Allow New Outbound Telnet Sessions | Indicates whether outbound Telnet sessions will be allowed. |
show telnetcon
This command displays the current inbound Telnet settings. In other words, these settings apply to Telnet connections initiated from a remote system to the switch.
Format show telnetcon
Modes • Privileged EXEC
- User EXEC
| Term Definition | |
| Remote Connection Login Timeout (minutes) | This object indicates the number of minutes a remote connection session is allowed to remain inactive before being logged off. May be specified as a number from 1 to 160. The factory default is 5. |
| Maximum Number of Remote Connection Sessions | This object indicates the number of simultaneous remote connection sessions allowed. The factory default is 5. |
| Allow New Telnet Sessions | New Telnet sessions will not be allowed when this field is set to no. The factory default value is yes. |
Secure Shell (SSH) Commands
This section describes the commands you use to configure SSH access to the switch. Use SSH to access the switch from a remote management host.

Note: The system allows a maximum of 5 SSH sessions.
ip ssh
Use this command to enable SSH access to the system. (This command is the short form of the ip ssh server enable command.)
Default disabled
Format ip ssh
Mode Privileged EXEC
ip ssh protocol
This command is used to set or remove protocol levels (or versions) for SSH. Either SSH1 (1), SSH2 (2), or both SSH 1 and SSH 2 (1 and 2) can be set.
Default 1 and 2
Format ip ssh protocol [1] [2]
Mode Privileged EXEC
ip ssh server enable
This command enables the IP secure shell server.
Default disabled
Format ip ssh server enable
Mode Privileged EXEC
no ip ssh server enable
This command disables the IP secure shell server.
Format no ip ssh server enable
Mode Privileged EXEC
sshcon maxsessions
This command specifies the maximum number of SSH connection sessions that can be established. A value of 0 indicates that no ssh connection can be established. The range is 0 to 5.
Default 5
Format sshcon maxsessions <0-5>
Mode Privileged EXEC
no sshcon maxsessions
This command sets the maximum number of allowed SSH connection sessions to the default value.
Format no sshcon maxsessions
Mode Privileged EXEC
sshcon timeout
This command sets the SSH connection session timeout value, in minutes. A session is active as long as the session has been idle for the value set. The time is a decimal value from 1 to 160.
Changing the timeout value for active sessions does not become effective until the session is re accessed. Also, any keystroke activates the new timeout duration.
Default 5
Format sshcon timeout <1-160>
Mode Privileged EXEC
no sshcon timeout
This command sets the SSH connection session timeout value, in minutes, to the default.
Changing the timeout value for active sessions does not become effective until the session is re accessed. Also, any keystroke activates the new timeout duration.
Format no sshcon timeout
Mode Privileged EXEC
show ip ssh
This command displays the ssh settings.
Format show ip ssh
Mode Privileged EXEC
| Term Definition | |
| Administrative Mode | This field indicates whether the administrative mode of SSH is enabled or disabled. |
| Protocol Level | The protocol level may have the values of version 1, version 2 or both versions 1 and version 2. |
| SSH Sessions Currently Active | The number of SSH sessions currently active. |
| Max SSH Sessions Allowed | The maximum number of SSH sessions allowed. |
| SSH Timeout The | SSH timeout value in minutes. |
| Keys Present Indi | icates whether the SSH RSA and DSA key files are present on the device. |
| Key Generation in Progress | Indicates whether RSA or DSA key files generation is currently in progress. |
Management Security Commands
This section describes commands you use to generate keys and certificates, which you can do in addition to loading them as before.
crypto certificate generate
Use this command to generate self-signed certificate for HTTPS. The generate RSA key for SSL has a length of 1024 bits. The resulting certificate is generated with a common name equal to the lowest IP address of the device and a duration of 365 days.
Format crypto certificate generate
Mode Global Config
no crypto certificate generate
Use this command to delete the HTTPS certificate files from the device, regardless of whether they are self-signed or downloaded from an outside source.
Format no crypto certificate generate
Mode Global Config
crypto key generate rsa
Use this command to generate an RSA key pair for SSH. The new key files will overwrite any existing generated or downloaded RSA key files.
Format crypto key generate rsa
Mode Global Config
no crypto key generate rsa
Use this command to delete the RSA key files from the device.
Format no crypto key generate rsa
Mode Global Config
crypto key generate dsa
Use this command to generate a DSA key pair for SSH. The new key files will overwrite any existing generated or downloaded DSA key files.
Format crypto key generate dsa
Mode Global Config
no crypto key generate dsa
Use this command to delete the DSA key files from the device.
Format no crypto key generate dsa
Mode Global Config
Hypertext Transfer Protocol (HTTP) Commands
This section describes the commands you use to configure HTTP and secure HTTP access to the switch. Access to the switch by using a Web browser is enabled by default. Everything you can view and configure by using the CLI is also available by using the Web.
ip http server
This command enables access to the switch through the Web interface. When access is enabled, the user can login to the switch from the Web interface. When access is disabled, the user cannot login to the switch's Web server. Disabling the Web interface takes effect immediately. All interfaces are affected.
Default enabled
Format ip http server
Mode Privileged EXEC
no ip http server
This command disables access to the switch through the Web interface. When access is disabled, the user cannot login to the switch's Web server.
Format no ip http server
Mode Privileged EXEC
ip http secure-server
This command is used to enable the secure socket layer for secure HTTP.
Default disabled
Format ip http secure-server
Mode Privileged EXEC
no ip http secure-server
This command is used to disable the secure socket layer for secure HTTP.
Format no ip http secure-server
Mode Privileged EXEC
ip http java
This command enables the Web Java mode. The Java mode applies to both secure and un-secure Web connections.
Default Enabled
Format ip http java
Mode Privileged EXEC
no ip http java
This command disables the Web Java mode. The Java mode applies to both secure and un-secure Web connections.
Format no ip http java
Mode Privileged EXEC
ip http session hard-timeout
This command configures the hard timeout for un-secure HTTP sessions in hours. Configuring this value to zero will give an infinite hard-timeout. When this timeout expires, the user will be forced to re-authenticate. This timer begins on initiation of the web session and is unaffected by the activity level of the connection.
Default 24
Format ip http session hard-timeout <0-168>
Mode Privileged EXEC
no ip http session hard-timeout
This command restores the hard timeout for un-secure HTTP sessions to the default value.
Format no ip http session hard-timeout
Mode Privileged EXEC
ip http authentication
This command specifies the authentication methods for http server users. The additional methods of authentication are used only if the previous method returns an error, not if it fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the final method in the command line. For example If none specified as an authentication method after radius, no authentication is used if the radius server is down..
Format ip http authentication method1 [method2 ...]
Mode Global ConfigC
| Term Definition | |
| Local Uses the local username database for authentication. | |
| Radius Uses the list of all RADIUS servers for authentication. | |
| Tacacs Uses the list of all TACACS servers for authentication. | |
| None Uses no authentication. | |
no ip http authentication
This command restores the authentication methods to the default.
Format no ip http authentication method1 [method2 ...]
Mode Global Config
ip http session maxsessions
This command limits the number of allowable un-secure HTTP sessions. Zero is the configurable minimum.
Default 16
Format ip http session maxsessions <0-16>
Mode Privileged EXEC
no ip http session max sessions
This command restores the number of allowable un-secure HTTP sessions to the default value.
Format no ip http session max sessions
Mode Privileged EXEC
ip http session soft-timeout
This command configures the soft timeout for un-secure HTTP sessions in minutes. Configuring this value to zero will give an infinite soft-timeout. When this timeout expires the user will be forced to re-authenticate. This timer begins on initiation of the Web session and is re-started with each access to the switch.
Default 5
Format ip http session soft-timeout <0-60>
Mode Privileged EXEC
no ip http session soft-timeout
This command resets the soft timeout for un-secure HTTP sessions to the default value.
Format no ip http session soft-timeout
Mode Privileged EXEC
ip http secure-session maxsessions
This command limits the number of secure HTTP sessions. Zero is the configurable minimum.
Default 16
Format ip http secure-session maxsessions <0-16>
Mode Privileged EXEC
no ip http secure-session maxsessions
This command restores the number of allowable secure HTTP sessions to the default value.
Format no ip http secure-session maxsessions
Mode Privileged EXEC
ip http secure-session soft-timeout
This command configures the soft timeout for secure HTTP sessions in minutes. Configuring this value to zero will give an infinite soft-timeout. When this timeout expires, you are forced to re-authenticate. This timer begins on initiation of the Web session and is re-started with each access to the switch. The secure-session soft-timeout can not be set to zero (infinite).
Default 5
Format ip http secure-session soft-timeout <1-60>
Mode Privileged EXEC
no ip http secure-session soft-timeout
This command restores the soft timeout for secure HTTP sessions to the default value.
Format no ip http secure-session soft-timeout
Mode Privileged EXEC
ip http secure-session hard-timeout
This command configures the hard timeout for secure HTTP sessions in hours. When this timeout expires, the user is forced to re-authenticate. This timer begins on initiation of the Web session and is unaffected by the activity level of the connection. The secure-session hard-timeout can not be set to zero (infinite).
Default 24
Format ip http secure-session hard-timeout <1-168>
Mode Privileged EXEC
no ip http secure-session hard-timeout
This command resets the hard timeout for secure HTTP sessions to the default value.
Format no ip http secure-session hard-timeout
Mode Privileged EXEC
ip https authentication
This command specifies the authentication methods for http server users. The additional methods of authentication are used only if the previous method returns an error, not if it fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the final method in the command line. If none is specified as an authentication method after radius, no authentication is used if the radius server is down..
Format ip https authentication method1 [method2 ...]
Mode Global ConfigC
| Term Definition | |
| Local Uses the local username database for authentication. | |
| Radius Uses the list of all RADIUS servers for authentication. | |
| Tacacs Uses the list of all TACACS servers for authentication. | |
| None Uses no authentication. | |
no ip https authentication
This command restores the authentication methods to the default for http server users.
Format no ip https authentication method1 [method2 ...]
Mode Global Config
ip http secure-port
This command is used to set the SSL port where port can be 1-65535 and the default is port 443.
Default 443
Format ip http secure-port
Mode Privileged EXEC
no ip http secure-port
This command is used to reset the SSL port to the default value.
Format no ip http secure-port
Mode Privileged EXEC
ip http secure-protocol
This command is used to set protocol levels (versions). The protocol level can be set to TLS1, SSL3 or to both TLS1 and SSL3.
Default SSL3 and TLS1
Format ip http secure-protocol [SSL3] [TLS1]
Mode Privileged EXEC
show ip http
This command displays the http settings for the switch.
Format show ip http
Mode Privileged EXEC
| Term Definition | |
| HTTP Mode (Unsecure) The unsecure HTTP server administrative mode. | |
| Java Mode The java applet administrative mode which applies to both secure and un-secure web connections. | |
| Maximum Allowable HTTP Sessions | The number of allowable un-secure http sessions. |
| HTTP Session Hard Timeout The hard timeout for un-secure http sessions in hours. | |
| HTTP Session Soft Timeout The soft timeout for un-secure http sessions in minutes. | |
| HTTP Mode (Secure) The secure HTTP server administrative mode. | |
| Secure Port The secure HTTP server port number. | |
| Secure Protocol Level(s) | The protocol level may have the values of SSL3, TSL1, or both SSL3 and TSL1. |
| Maximum Allowable HTTPS Sessions | The number of allowable secure http sessions. |
| HTTPS Session Hard Timeout The | the hard timeout for secure http sessions in hours. |
| HTTPS Session Soft Timeout The | the soft timeout for secure http sessions in minutes. |
| Certificate Present Indicates whether the secure-server certificate files are present on the device. | |
| Certificate Generation in Progress | Indicates whether certificate generation is currently in progress. |
Access Commands
Use the commands in this section to close remote connections or to view information about connections to the system.
disconnect
Use the disconnect command to close HTTP, HTTPS, Telnet or SSH sessions. Use all to close all active sessions, or use
Format disconnect {
Mode Privileged EXEC
show loginsession
This command displays current Telnet and serial port connections to the switch.
Format show loginsession
Mode Privileged EXEC
| Term Definition | |
| ID Login Session ID. | |
| User Name The name the user entered to log on to the system. | |
| Connection From | IP address of the remote client machine or EIA-232 for the serial port connection. |
| Idle Time Time this session has been idle. | |
| Session Time Total time this session has been connected. | |
| Session Type Shows the type of session, which can be HTTP, HTTPS, telnet, serial, or SSH. | |
User Account Commands
This section describes the commands you use to add, manage, and delete system users. The 7000 series software has two default users: admin and guest. The admin user can view and configure system settings, and the guest user can view settings.

Note: You cannot delete the admin user. There is only one user allowed with read/write privileges. You can configure up to five read-only users on the system.
username
This command adds a username-based authentication system.
Format username
Mode Global Config
| Term Definition | |
| Name The name of the user, up to 20 characters. | |
| Password The password for the users 8-64 characters. | |
| level | Specifies the user level. If not specified, the privilege level is 1. The value can be 1-15. |
| encrypted Encrypted password you enter, copied from another device configuration. | |
no usermane
This command removes a user account.
Format no username
Mode Global Config

Note: You cannot delete the "admin" user account.
username nopassword
This command removes the password from a user.
Format username
Mode Global Config
username unlock
Use this command to unlock a locked user account. Only a user with read/write access can reactivate a locked user account.
Format username
Mode Global Config
username snmpv3 accessmode
This command specifies the snmpv3 access privileges for the specified login user. The valid accessmode values are readonly or readwrite. The
Defaults • admin - readwrite
- other - readonly
Format username snmpv3 accessmode
Mode Global Config
no username snmpv3 accessmode
This command sets the snmpv3 access privileges for the specified user as readwrite for the “admin” user and readonly for all other users. The
Format no username snmpv3 accessmode
Mode Global Config
username snmpv3 authentication
This command specifies the authentication protocol to be used for the specified user. The valid authentication protocols are none, md5 or sha. If you specify md5 or sha, the login password is also used as the snmpv3 authentication password and therefore must be at least eight characters in length. The
Default no authentication
Format username snmpv3 authentication
Mode Global Config
no username snmpv3 authentication
This command sets the authentication protocol to be used for the specified user to none. The
Format no username snmpv3 authentication
Mode Global Config
username snmpv3 encryption
This command specifies the encryption protocol used for the specified user. The valid encryption protocols are des or none.
If you select des, you can specify the required key on the command line. The encryption key must be 8 to 64 characters long. If you select the des protocol but do not provide a key, the user is prompted for the key. When you use the des protocol, the login password is also used as the snmpv3 encryption password, so it must be a minimum of eight characters. If you select none, you do not need to provide a key.
The
Default no encryption
Format username snmpv3 encryption
Mode Global Config
no username snmpv3 encryption
This command sets the encryption protocol to none. The
Format no username snmpv3 encryption
Mode Global Config
show users
This command displays the configured user names and their settings. This command is only available for users with Read/Write privileges. The SNMPv3 fields will only be displayed if SNMP is available on the system.
Format show users
Mode Privileged EXEC
| Term Definition | |
| User Name The name the user enters to login using the serial port, Telnet or Web. | |
| Access Mode | Shows whether the user is able to change parameters on the switch (Read/Write) or is only able to view them (Read Only). As a factory default, the “admin” user has Read/Write access and the “guest” has Read Only access. There can only be one Read/Write user and up to five Read Only users. |
| SNMPv3 Access Mode | The SNMPv3 Access Mode. If the value is set to ReadWrite, the SNMPv3 user is able to set and retrieve parameters on the system. If the value is set to ReadOnly, the SNMPv3 user is only able to retrieve parameter information. The SNMPv3 access mode may be different than the CLI and Web access mode. |
| SNMPv3 Authentication | The authentication protocol to be used for the specified login user. |
| SNMPv3 Encryption | The encryption protocol to be used for the specified login user. |
show users accounts
This command displays the local user status with respect to user account lockout and password aging.
Format show users accounts
Mode Privileged EXEC
| Term Definition | |
| User Name The local user account's user name. | |
| Privilege The user's privilege level (1-15). | |
| Password aging The password aging time for the local users. | |
| Lockout Status Indicates whether the user account is locked out (true or false). | |
| Password Expiration Date | The current password expiration date in date format. |
show users long
This command is used to display the users full name.
Format show users long
Mode Privileged EXEC
| Term Definition | |
| User Name The full name of the user. | |
show users login-history
This command is used to display the users who have logged in previously.
Format show users login-history [{user name}]
Mode Privileged EXEC
| Term Definition | |
| Login Time The time at which the user logged in. | |
| Username The user name used to login. | |
| Protocol The protocol that the user used to login. | |
| Location The location of the user. | |
passwords min-length
Use this command to enforce a minimum password length for local users. The value also applies to the enable password. The valid range is 0-64.
Default 8
Format passwords min-length <0-64>
Mode Global Config
no passwords min-length
Use this command to set the minimum password length to the default value.
Format no passwords min-length
Mode Global Config
passwords history
Use this command to set the number of previous passwords that shall be stored for each user account. When a local user changes his or her password, the user will not be able to reuse any password stored in password history. This ensures that users don't reuse their passwords often. The valid range is 0-10.
Default 0
Format passwords history <0-10>
Mode Global Config
no passwords history
Use this command to set the password history to the default value.
Format no passwords history
Mode Global Config
passwords aging
Use this command to implement aging on passwords for local users. When a user's password expires, the user will be prompted to change it before logging in again. The valid range is 1-365. The default is 0, or no aging.
Default 0
Format passwords aging <1-365>
Mode Global Config
no passwords aging
Use this command to set the password aging to the default value.
Format no passwords aging
Mode Global Config
passwords lock-out
Use this command to strengthen the security of the switch by locking user accounts that have failed login due to wrong passwords. When a lockout count is configured, a user that is logged in must enter the correct password within that count. Otherwise the user will be locked out from further switch access. Only a user with read/write access can re-activate a locked user account. Password lockout does not apply to logins from the serial console. The valid range is 1-5. The default is 0, or no lockout count enforced.
Default 0
Format passwords lock-out <1-5>
Mode Global Config
no passwords lock-out
Use this command to set the password lock-out count to the default value.
Format no passwords lock-out
Mode Global Config
show passwords configuration
Use this command to display the configured password management settings.
Format show passwords configuration
Mode Privileged EXEC
| Term Definition | |
| Minimum Password Length | Minimum number of characters required when changing passwords. |
| Password History Number | of passwords to store for reuse prevention. |
| Password Aging Length in days that a password is valid. | |
| Lockout Attempts Number | of failed password login attempts before lockout. |
aaa authentication login
This command is used to set authentication at login. The default and optional list names that you create with the aaa authentication login command are used with the login authentication command. Create a list by entering the aaa authentication login list-name method command for a particular protocol, where list-name is any character string used to name this list. The method argument identifies the list of methods that the authentication algorithm tries, in the given sequence. The additional methods of authentication are used only if the previous method returns an error, not if it fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the final method in the command line. For example if none is specified as an authentication method after radius, no authentication is used if the radius server is down. where:
Format aaa authentication login {default | list-name} method1 [method2...]
Mode Global Config
Default Uses the listed authentication methods that follow this argument as the default list of methods when a user logs in.
list-name Character string used to name the list of authentication methods activated when a user logs in. Up to 12 characters.
method1 [method2...] At least one from the following table:
| Keyword Description | |
| enable Uses the enable password for authentication. | |
| line Uses the line password for authentication. | |
| local Uses the local username database for authentication. | |
| none Uses no authentication. | |
| radius Uses the list of all RADIUS servers for authentication. | |
| tacacs Uses the list of all TACACS servers for authentication. | |

Note: The local user database is checked. This has the same effect as the following command:aaa authentication login local
no aaa authenticaton login
This command is used to remove authentication at login.
Format no aaa authentication login {default | list-name} Mode Global Config
aaa authenticaton enable
This command is used to set authentication when the user access higher privilege level, use the aaa authentication enable default command in global configuration mode. The default and optional list names that you create with the aaa authentication enable command are used with the enable authentication command.
Create a list by entering the aaa authentication enable list-name method command where list-name is any character string used to name this list. The method argument identifies the list of methods that the authentication algorithm tries, in the given sequence. The additional methods of authentication are used only if the previous method returns an error, not if it fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the final method in the command line. For example, if none is specified as an authentication method after radius, no authentication is used if the radius server is down. All aaa authentication enable default requests sent by the switch to a RADIUS or TACACS server include the username "\enabx\.", where x is the requested privilege level.
Format aaa authentication enable {default | list-name} method1 [method2...]
Mode Global Config
Default Uses the listed authentication methods that follow this argument as the default list of methods when a user accesses a higher privilege level.
list-name Character string used to name the list of authentication methods activated when a user accesses a higher privilege level. Up to 12 characters.
method1 [method2...] At least one from the following table:
| Keyword Description | |
| enable Uses the enable p | password for authentication. |
| line Uses the line password for authentication. | |
| none Uses no authentication. | |
| radius Uses the list of all RADIUS servers for authentication. Uses username "enabx."where x is the privilege level. | |
| tacacs | Uses the list of all TACACS servers for authentication. Uses username "enabx." where x is the privilege level. |
no aaa authentication enable

Note: If the default list is not set, only the enable password is checked. This has the same effect as the following command:
aaa authentication enable default enable
On the console, the enable password is used if it exists. If no password is set, the process will succeed anyway. This has the same effect as the following command:
aaa authentication enable default enable none
Use this command to remove the authentication method.
Format no aaa authentication enable {default | list-name} method1 [method2...]
Mode Global Config
aaa authentication dot1x
This command is used to set authentication for dot1x users. The method argument identifies the list of methods that the authentication algorithm tries, in the given sequence. The additional methods of authentication are used only if the previous method returns an error, not if it fails. To ensure that the authentication succeeds even if all methods return an error, specify none as the final method in the command line. For example if none is specified as an authentication method after radius, no authentication is used if the radius server is down.
Format aaa authentication dot1x default method1 [method2...]
Mode Global Config
method1 [method2...] At least one from the following table:
| Keyword Description | |
| local Uses the local username database for authentication. | |
| none Uses no authentication. | |
| radius Uses the list of all RADIUS servers for authentication. | |
no aaa authentication dot1x
This command is used to remove the authentication at login.
Format no aaa authentication dot1x default
Mode Global Config
write memory
Use this command to save running configuration changes to NVRAM so that the changes you make will persist across a reboot. This command is the same as copy system:running config nvram:startup-config.
Format write memory
Mode Privileged EXEC
SNMP Commands
This section describes the commands you use to configure Simple Network Management Protocol (SNMP) on the switch. You can configure the switch to act as an SNMP agent so that it can communicate with SNMP managers on your network.
snmp-server
This command sets the name and the physical location of the switch, and the organization responsible for the network. The range for
Default none
Format snmp-server {sysname
Mode Global Config
snmp-server community
This command adds (and names) a new SNMP community. A community

Note: Community names in the SNMP Community Table must be unique. When making multiple entries using the same community name, the first entry is kept and processed and all duplicate entries are ignored.
Default • Public and private, which you can rename.
- Default values for the remaining four community names are blank.
Format snmp-server community
Mode Global Config
no snmp-server community
This command removes this community name from the table. The
Format no snmp-server community
Mode Global Config
snmp-server community ipaddr
This command sets a client IP address for an SNMP community. The address is the associated community SNMP packet sending address and is used along with the client IP mask value to denote a range of IP addresses from which SNMP clients may use that community to access the device. A value of 0.0.0.0 allows access from any IP address. Otherwise, this value is ANDed with the mask to determine the range of allowed client IP addresses. The name is the applicable community name.
Default 0.0.0.0
Format snmp-server community ipaddr
Mode Global Config
no snmp-server community ipaddr
This command sets a client IP address for an SNMP community to 0.0.0.0. The name is the applicable community name.
Format no snmp-server community ipaddr
Mode Global Config
snmp-server community ipmask
This command sets a client IP mask for an SNMP community. The address is the associated community SNMP packet sending address and is used along with the client IP address value to denote a range of IP addresses from which SNMP clients may use that community to access the device. A value of 255.255.255.255 will allow access from only one station, and will use that machine's IP address for the client IP address. A value of 0.0.0.0 will allow access from any IP address. The name is the applicable community name.
Default 0.0.0.0
Format snmp-server community ipmask
Mode Global Config
no snmp-server community ipmask
This command sets a client IP mask for an SNMP community to 0.0.0.0. The name is the applicable community name. The community name may be up to 16 alphanumeric characters.
Format no snmp-server community ipmask
snmp-server community mode
This command activates an SNMP community. If a community is enabled, an SNMP manager associated with this community manages the switch according to its access right. If the community is disabled, no SNMP requests using this community are accepted. In this case the SNMP manager associated with this community cannot manage the switch until the Status is changed back to Enable.
Default • private and public communities - enabled • other four - disabled
Format snmp-server community mode
no snmp-server community mode
This command deactivates an SNMP community. If the community is disabled, no SNMP requests using this community are accepted. In this case the SNMP manager associated with this community cannot manage the switch until the Status is changed back to Enable.
Format no snmp-server community mode
snmp-server community ro
This command restricts access to switch information. The access mode is read-only (also called public).
Format snmp-server community ro
snmp-server community rw
This command restricts access to switch information. The access mode is read/write (also called private).
Format snmp-server community rw
Mode Global Config
snmp-server enable traps violation
This command enables the sending of new violation traps designating when a packet with a disallowed MAC address is received on a locked port.

Note: For other port security commands, see “Protected Ports Commands” on page 3-52.
Default disabled
Format snmp-server enable traps violation
Mode Interface Config
no snmp-server enable traps violation
This command disables the sending of new violation traps.
Format no snmp-server enable traps violation
Mode Interface Config
snmp-server enable traps
This command enables the Authentication Flag.
Default enabled
Format snmp-server enable traps
Mode Global Config
no snmp-server enable traps
This command disables the Authentication Flag.
Format no snmp-server enable traps
Mode Global Config
snmp-server enable traps linkmode

Note: This command may not be available on all platforms.
This command enables Link Up/Down traps for the entire switch. When enabled, link traps are sent only if the Link Trap flag setting associated with the port is enabled. See “snmp trap link-status” on page 10-48
Default enabled
Format snmp-server enable traps linkmode
Mode Global Config
no snmp-server enable traps linkmode
This command disables Link Up/Down traps for the entire switch.
Format no snmp-server enable traps linkmode
Mode Global Config
snmp-server enable traps multiusers
This command enables Multiple User traps. When the traps are enabled, a Multiple User Trap is sent when a user logs in to the terminal interface (EIA 232 or Telnet) and there is an existing terminal interface session.
Default enabled
Format snmp-server enable traps multiusers
Mode Global Config
no snmp-server enable traps multiusers
This command disables Multiple User traps.
Format no snmp-server enable traps multiusers
Mode Global Config
snmp-server enable traps stpmode
This command enables the sending of new root traps and topology change notification traps.
Default enabled
Format snmp-server enable traps stpmode
Mode Global Config
no snmp-server enable traps stpmode
This command disables the sending of new root traps and topology change notification traps.
Format no snmp-server enable traps stpmode
Mode Global Config
snmptrap
This command adds an SNMP trap receiver. The maximum length of
The following shows an example of the CLI command.
(Netgear Switch)# snmptrap mytrap ip6addr 3099::2

Note: The
Default snmpv2
Format snmptrap
Mode Global Config
no snmptrap
This command deletes trap receivers for a community.
Format no snmptrap
Mode Global Config
snmptrap snmpversion
This command modifies the SNMP version of a trap. The maximum length of

Note: This command does not support a “no” form.
Default snmpv2
Format snmptrap snmpversion
Mode Global Config
snmptrap ipaddr
This command assigns an IP address to a specified community name. The maximum length of name is 16 case-sensitive alphanumeric characters.

Note: IP addresses in the SNMP trap receiver table must be unique. If you make multiple entries using the same IP address, the first entry is retained and processed. All duplicate entries are ignored.
Format snmptrap ipaddr
Mode Global Config
snmptrap mode
This command activates or deactivates an SNMP trap. Enabled trap receivers are active (able to receive traps). Disabled trap receivers are inactive (not able to receive traps).
Format snmptrap mode
Mode Global Config
no snmptrap mode
This command deactivates an SNMP trap. Disabled trap receivers are unable to receive traps.
Format no snmptrap mode
Mode Global Config
snmp trap link-status
This command enables link status traps by interface.

Note: This command is valid only when the Link Up/Down Flag is enabled. See “snmp-server enable traps linkmode” on page 10-45
Format snmp trap link-status
Mode Interface Config
no snmp trap link-status
This command disables link status traps by interface.

Note: This command is valid only when the Link Up/Down Flag is enabled.
Format no snmp trap link-status
Mode Interface Config
snmp trap link-status all
This command enables link status traps for all interfaces.

Note: This command is valid only when the Link Up/Down Flag is enabled. See “snmp-server enable traps linkmode” on page 10-45
Format snmp trap link-status all
Mode Global Config
no snmp trap link-status all
This command disables link status traps for all interfaces.

Note: This command is valid only when the Link Up/Down Flag is enabled. See “snmp-server enable traps linkmode” on page 10-45
Format no snmp trap link-status all
Mode Global Config
show snmpcommunity
This command displays SNMP community information. Six communities are supported. You can add, change, or delete communities. The switch does not have to be reset for changes to take effect.
The SNMP agent of the switch complies with SNMP Versions 1, 2 or 3. For more information about the SNMP specification, see the SNMP RFCs. The SNMP agent sends traps through TCP/IP to an external SNMP manager based on the SNMP configuration (the trap receiver and other SNMP community parameters).
Format show snmpcommunity
Mode Privileged EXEC
| Term Definition | |
| SNMP Community Name | The community string to which this entry grants access. A valid entry is a case-sensitive alphanumeric string of up to 16 characters. Each row of this table must contain a unique community name. |
| Client IP Address | An IP address (or portion thereof) from which this device will accept SNMP packets with the associated community. The requesting entity's IP address is ANDed with the Subnet Mask before being compared to the IP address. Note: If the Subnet Mask is set to 0.0.0.0, an IP address of 0.0.0.0 matches all IP addresses. The default value is 0.0.0.0. |
| Client IP Mask | A mask to be ANDed with the requesting entity's IP address before comparison with IP address. If the result matches with IP address then the address is an authenticated IP address. For example, if the IP address = 9.47.128.0 and the corresponding Subnet Mask = 255.255.255.0 a range of incoming IP addresses would match, i.e. the incoming IP address could equal 9.47.128.0 - 9.47.128.255. The default value is 0.0.0.0. |
| Access Mode The | access level for this community string. |
| Status The status | of this community access entry. |
show snmptrap
This command displays SNMP trap receivers. Trap messages are sent across a network to an SNMP Network Manager. These messages alert the manager to events occurring within the switch or on the network. Six trap receivers are simultaneously supported.
Format show snmptrap
Mode Privileged EXEC
| Term Definition | |
| SNMP Trap Name | The community string of the SNMP trap packet sent to the trap manager. The string is case sensitive and can be up to 16 alphanumeric characters. |
| IP Address The IPv4 address to receive SNMP traps from this device. | |
| IPv6 Address The IPv6 address to receive SNMP traps from this device. | |
| SNMP Version SNMPv2 | |
| Status The receiver's status (enabled or disabled). | |
The following shows an example of the CLI command.
(Netgear Switch)#show snmptrap
Community Name Mytrap
IpAddress 0.0.0.0
IPv6 Address 2001::1
Snmp Version SNMPv2
Mode Enable show trapflags
show trapflags
This command displays trap conditions. The command's display shows all the enabled OSPFv2 and OSPFv3 trapflags. Configure which traps the switch should generate by enabling or disabling the trap condition. If a trap condition is enabled and the condition is detected, the SNMP agent on the switch sends the trap to all enabled trap receivers. You do not have to reset the switch to implement the changes. Cold and warm start traps are always generated and cannot be disabled.
Format show trapflags
Mode Privileged EXEC
| Term Definition | |
| Authentication Flag | Can be enabled or disabled. The factory default is enabled. Indicates whether authentication failure traps will be sent. |
| Link Up/Down Flag | Can be enabled or disabled. The factory default is enabled. Indicates whether link status traps will be sent. |
| Multiple Users Flag | Can be enabled or disabled. The factory default is enabled. Indicates whether a trap will be sent when the same user ID is logged into the switch more than once at the same time (either through Telnet or the serial port). |
| Spanning Tree Flag | Can be enabled or disabled. The factory default is enabled. Indicates whether spanning tree traps are sent. |
| ACL Traps | May be enabled or disabled. The factory default is disabled. Indicates whether ACL traps are sent. |
| DVMRP Traps | Can be enabled or disabled. The factory default is disabled. Indicates whether DVMRP traps are sent. |
| OSPFv2 Traps | Can be enabled or disabled. The factory default is disabled. Indicates whether OSPF traps are sent. If any of the OSPF trap flags are not enabled, then the command displaysdisabled. Otherwise, the command shows all the enabled OSPF traps' information. |
| OSPFv3 Traps | Can be enabled or disabled. The factory default is disabled. Indicates whether OSPF traps are sent. If any of the OSPFv3 trap flags are not enabled, then the command displaysdisabled. Otherwise, the command shows all the enabled OSPFv3 traps' information. |
| PIM Traps | Can be enabled or disabled. The factory default is disabled. Indicates whether PIM traps are sent. |
RADIUS Commands
This section describes the commands you use to configure the switch to use a Remote Authentication Dial-In User Service (RADIUS) server on your network for authentication and accounting.
authorization network radius
Use this command to enable the switch to accept VLAN assignment by the radius server.
Default disable
Format authorization network radius
Mode Global Config
no authorization network radius
Use this command to disable the switch to accept VLAN assignment by the radius server.
Format no authorization network radius
Mode Global Config
radius accounting mode
This command is used to enable the RADIUS accounting function.
Default disabled
Format radius accounting mode
Mode Global Config
no radius accounting mode
This command is used to set the RADIUS accounting function to the default value - i.e. the RADIUS accounting function is disabled.
Format no radius accounting mode
Mode Global Config
radius server attribute
This command specifies the RADIUS client to use the NAS-IP Address attribute in the RADIUS requests. If the specific IP address is configured while enabling this attribute, the RADIUS client uses that IP address while sending NAS-IP-Address attribute in RADIUS communication.
Format radius server attribute <4> [
Mode Global Config
| Term Definition | |
| 4 NAS-IP-Address | attribute to be used in RADIUS requests. |
| ipaddr The IP address of the server. | |
no radius server attribute
The no version of this command disables the NAS-IP-Address attribute global parameter for RADIUS client. When this parameter is disabled, the RADIUS client does not send the NAS-IP-Address attribute in RADIUS requests.
Format no radius server attribute <4> [
Mode Global Config
The following shows an example of the command.
(Switch) (Config) #radius server attribute 4 192.168.37.60
(Switch) (Config) #radius server attribute 4
radius server host
This command configures the IP address or DNS name to use for communicating with the RADIUS server of a selected server type. While configuring the IP address or DNS name for the authenticating or accounting servers, you can also configure the port number and server name. If the authenticating and accounting servers are configured without a name, the command uses the 'Default_RADIUS_Auth_Server' and 'Default_RADIUS_Acct_Server' as the default names, respectively. The same name can be configured for more than one authenticating servers and the name should be unique for accounting servers. The RADIUS client allows the configuration of a maximum 32 authenticating and accounting servers.
If you use the

Note: To re-configure a RADIUS authentication server to use the default UDP
If you use the
when connecting to the RADIUS accounting server. If a

Note: To re-configure a RADIUS accounting server to use the default UDP
Format radius server host {auth | acct} {
Mode Global Config
| Field Description | |
| ipaddr The IP address of the server. | |
| dnsname The DNS name of the server. | |
| 0-65535 The port number to use to connect to the specified RADIUS server. | |
| servername The alias name to identify the server. | |
no radius server host
The no version of this command deletes the configured server entry from the list of configured RADIUS servers. If the RADIUS authenticating server being removed is the active server in the servers that are identified by the same server name, then the RADIUS client selects another server for making RADIUS transactions. If the 'auth' token is used, the previously configured RADIUS authentication server is removed from the configuration. Similarly, if the 'acct' token is used, the previously configured RADIUS accounting server is removed from the configuration. The
Format no radius server host {auth | acct} {
Mode Global Config
The following shows an example of the command.
(Switch) (Config) #radius server host acct 192.168.37.60 (Switch) (Config) #radius server host acct 192.168.37.60 port 1813
(Switch) (Config) #radius server host auth 192.168.37.60 name Network1_RADIUS_Auth_Server port 1813
(Switch) (Config) #radius server host acct 192.168.37.60 name Network2_RADIUS_Auth_Server (Switch) (Config) #no radius server host acct 192.168.37.60
radius server key
This command configures the key to be used in RADIUS client communication with the specified server. Depending on whether the 'auth' or 'acct' token is used, the shared secret is configured for the RADIUS authentication or RADIUS accounting server. The IP address or hostname provided must match a previously configured server. When this command is executed, the secret is prompted.
Text-based configuration supports Radius server's secrets in encrypted and non-encrypted format. When you save the configuration, these secret keys are stored in encrypted format only. If you want to enter the key in encrypted format, enter the key along with the encrypted keyword. In the show running config command's display, these secret keys are displayed in encrypted format. You cannot show these keys in plain text format.

Note: The secret must be an alphanumeric value not exceeding 16 characters.
Format radius server key {auth | acct} {
Mode Global Config
| Field Description | |
| ipaddr The IP address of the server. | |
| dnsname The DNS name of the server. | |
| password The password in encrypted format. | |
The following shows an example of the CLI command.
radius server key acct 10.240.4.10 encrypted
radius server msgauth
This command enables the message authenticator attribute to be used for the specified RADIUS Authenticating server.
Format radius server msgauth
Mode Global Config
| Field Description | |
| ip addr The IP address of the server. | |
| dnsname The DNS name of the server. | |
no radius server msgauth
The no version of this command disables the message authenticator attribute to be used for the specified RADIUS Authenticating server.
Format no radius server msgauth
Mode Global Config
radius server primary
This command specifies a configured server that should be the primary server in the group of servers which have the same server name. Multiple primary servers can be configured for each number of servers that have the same name. When the RADIUS client has to perform transactions with an authenticating RADIUS server of specified name, the client uses the primary server that has the specified server name by default. If the RADIUS client fails to communicate with the primary server for any reason, the client uses the backup servers configured with the same server name. These backup servers are identified as the ‘Secondary’ type.
Format radius server primary {
Mode Global Config
| Field Description | |
| ip addr The IP address of the RADIUS Authenticating server. | |
| dnsname The DNS name of the server. | |
radius server retransmit
This command configures the global parameter for the RADIUS client that specifies the number of transmissions of the messages to be made before attempting the fall back server upon unsuccessful communication with the current RADIUS authenticating server. When the maximum number of retries are exhausted for the RADIUS accounting server and no response is received, the client does not communicate with any other server.
Default 4
Format radius server retransmit
Mode Global Config
| Field Description | |
| retries The maximum number of transmission attempts in the range of 1 to 15. | |
no radius server retransmit
The no version of this command sets the value of this global parameter to the default value.
Format no radius server retransmit
Mode Global Config
radius server timeout
This command configures the global parameter for the RADIUS client that specifies the timeout value (in seconds) after which a request must be retransmitted to the RADIUS server if no response is received. The timeout value is an integer in the range of 1 to 30.
Default 5
Format radius server timeout
Mode Global Config
| Field Description | |
| retries Maximum | number of transmission attempts in the range <1-30>. |
no radius server timeout
The no version of this command sets the timeout global parameter to the default value.
Format no radius server timeout
Mode Global Config
show radius
This command displays the values configured for the global parameters of the RADIUS client.
Format show radius
Mode Privileged EXEC
| Term Definition | |
| Number of Configured Authentication Servers | The number of RADIUS Authentication servers that have been configured. |
| Number of Configured Accounting Servers | The number of RADIUS Accounting servers that have been configured. |
| Number of Named Authentication Server Groups | The number of configured named RADIUS server groups. |
| Number of Named Accounting Server Groups | The number of configured named RADIUS server groups. |
| Number of Retransmits The configured value of the maximum number of times a request packet is retransmitted. | |
| Time Duration The configured timeout value, in seconds, for request re-transmissions. | |
| RADIUS Accounting Mode | A global parameter to indicate whether the accounting mode for all the servers is enabled or not. |
| RADIUS Attribute 4 Mode | A global parameter to indicate whether the NAS-IP-Address attribute has been enabled to use in RADIUS requests. |
| RADIUS Attribute 4 Value | A global parameter that specifies the IP address to be used in the NAS-IP-Address attribute to be used in RADIUS requests. |
The following shows example CLI display output for the command.
(Switch)#show radius
| Number of Configured Authentication Servers...... 32 |
| Number of Configured Accounting Servers...... 32 |
| Number of Named Authentication Server Groups...... 15 |
| Number of Named Accounting Server Groups...... 3 |
| Number of Retransmits...... 4 |
| Time Duration...... 10 |
| RADIUS Accounting Mode...... Disable |
| RADIUS Attribute 4 Mode...... Enable |
| RADIUS Attribute 4 Value ...... 192.168.37.60 |
show radius servers
This command displays the summary and details of RADIUS authenticating servers configured for the RADIUS client.
Format show radius servers [ {
| Field Description | |
| ipaddr The IP address of the authenticating server. | |
| dnsname The DNS name of the authenticating server. | |
| servername The alias name to identify the server. | |
| Current The '*' symbol preceding the server host address specifies that the server is currently active. | |
| Host Address The IP address of the host. | |
| Server Name The name of the authenticating server. | |
| Port The port used for communication with the authenticating server. | |
| Type Specifies whether this server is a primary or secondary type. | |
| Current Host Address The IP address of the currently active authenticating server. | |
| Secret Configured | Yes or No Boolean value that indicates whether this server is configured with a secret. |
| Number of Retransmits | The configured value of the maximum number of times a request packet is retransmitted. |
| Message Authenticator | A global parameter to indicate whether the Message Authenticator attribute is enabled or disabled. |
| Time Duration The configured timeout value, in seconds, for request retransmissions. | |
| RADIUS Accounting Mode | A global parameter to indicate whether the accounting mode for all the servers is enabled or not. |
| RADIUS Attribute 4 Mode | A global parameter to indicate whether the NAS-IP-Address attribute has been enabled to use in RADIUS requests. |
| RADIUS Attribute 4 Value | A global parameter that specifies the IP address to be used in NAS-IP-Address attribute used in RADIUS requests. |
The following shows example CLI display output for the command.
(Switch) #show radius servers
| Current | Host Address | Server Name | Port Type |
| * | 192.168.37.200 | Network1_RADIUS_Server | 1813 Primary |
| 192.168.37.201 | Network2_RADIUS_Server | 1813 Secondary | |
| 192.168.37.202 | Network3_RADIUS_Server | 1813 Primary | |
| 192.168.37.203 | Network4_RADIUS_Server | 1813 Secondary |
(Switch) #show radius servers name
| Current Host Address | Server Name | Type |
| 192.168.37.200 | Network1_RADIUS_Server | Secondary |
| 192.168.37.201 | Network2_RADIUS_Server | Primary |
| 192.168.37.202 | Network3_RADIUS_Server | Secondary |
| 192.168.37.203 | Network4_RADIUS_Server | Primary |
(Switch) #show radius servers name Default_RADIUS_Server
Server Name..... Default_RADIUS_Server
Host Address..... 192.168.37.58
Secret Configured..... No
Message Authenticator ..... Enable
Number of Retransmits..... 4
Time Duration..... 10
RADIUS Accounting Mode..... Disable
RADIUS Attribute 4 Mode..... Enable
RADIUS Attribute 4 Value ..... 192.168.37.60
(Switch) #show radius servers 192.168.37.58
Server Name..... Default_RADIUS_Server
Host Address..... 192.168.37.58
Secret Configured..... No
Message Authenticator ..... Enable
Number of Retransmits..... 4
Time Duration..... 10
RADIUS Accounting Mode..... Disable
RADIUS Attribute 4 Mode..... Enable
RADIUS Attribute 4 Value ..... 192.168.37.60
show radius accounting
This command displays a summary of configured RADIUS accounting servers.
Format show radius accounting name [
Mode Privileged EXEC
| Field Description | |
| servername An alias name to identify the server. | |
| RADIUS Accounting Mode | A global parameter to indicate whether the accounting mode for all the servers is enabled or not. |
If you do not specify any parameters, then only the accounting mode and the RADIUS accounting server details are displayed.
| Term Definition | |
| Host Address The IP address of the host. | |
| Server Name The name of the accounting server. | |
| Port The port used for communication with the accounting server. | |
| Secret Configured | Yes or No Boolean value indicating whether this server is configured with a secret. |
The following shows example CLI display output for the command.
(Switch) #show radius accounting name
| Host Address | Server Name | Port | Secret Configured |
| 192.168.37.200 | Network1_RADIUS_Server | 1813 | Yes |
| 192.168.37.201 | Network2_RADIUS_Server | 1813 | No |
| 192.168.37.202 | Network3_RADIUS_Server | 1813 | Yes |
| 192.168.37.203 | Network4_RADIUS_Server | 1813 | No |
(Switch) #show radius accounting name Default_RADIUS_Server
| Server Name | Default_RADIUS_Server |
| Host Address | 192.168.37.200 |
| RADIUS Accounting Mode | Disable |
| Port | 1813 |
| Secret Configured | Yes |
show radius accounting statistics
This command displays a summary of statistics for the configured RADIUS accounting servers.
Format show radius accounting statistics {
Mode Privileged EXEC
| Term Definition | |
| ipaddr The IP address | of the server. |
| dnsname The DNS name of the server. | |
| servername The alias | name to identify the server. |
| RADIUS Accounting Server Name | The name of the accounting server. |
| Server Host Address | The IP address of the host. |
| Round Trip Time | The time interval, in hundredths of a second, between the most recent Accounting-Response and the Accounting-Request that matched it from this RADIUS accounting server. |
| Requests The number | of RADIUS Accounting-Request packets sent to this server. This number does not include retransmissions. |
| Retransmission | The number of RADIUS Accounting-Request packets retransmitted to this RADIUS accounting server. |
| Responses The number | of RADIUS packets received on the accounting port from this server. |
| Malformed Responses | The number of malformed RADIUS Accounting-Response packets received from this server. Malformed packets include packets with an invalid length. Bad authenticators or signature attributes or unknown types are not included as malformed accounting responses. |
| Bad Authenticators The number of RADIUS Accounting-Response packets containing invalid authenticators received from this accounting server. | |
| Pending Requests | The number of RADIUS Accounting-Request packets sent to this server that have not yet timed out or received a response. |
| Timeouts The number of accounting timeouts to this server. | |
| Unknown Types The number of RADIUS packets of unknown types, which were received from this server on the accounting port. | |
| Packets Dropped | The number of RADIUS packets received from this server on the accounting port and dropped for some other reason. |
The following shows example CLI display output for the command.
(Switch) #show radius accounting statistics 192.168.37.200
| RADIUS Accounting Server Name...... | Default_RADIUS_Server |
| Host Address...... | 192.168.37.200 |
| Round Trip Time...... | 0.00 |
| Requests...... | 0 |
| Retransmissions...... | 0 |
| Responses...... | 0 |
| Malformed Responses...... | 0 |
| Bad Authenticators...... | 0 |
| Pending Requests...... | 0 |
| Timeouts...... | 0 |
| Unknown Types...... | 0 |
| Packets Dropped...... | 0 |
(Switch) #show radius accounting statistics name Default_RADIUS_Server
| RADIUS Accounting Server Name...... | Default_RADIUS_Server |
| Host Address...... | 192.168.37.200 |
| Round Trip Time...... | 0.00 |
| Requests...... | 0 |
| Retransmissions...... | 0 |
| Responses...... | 0 |
| Malformed Responses...... | 0 |
| Bad Authenticators...... | 0 |
| Pending Requests...... | 0 |
| Timeouts...... | 0 |
| Unknown Types...... | 0 |
| Packets Dropped...... | 0 |
show radius statistics
This command displays the summary statistics of configured RADIUS Authenticating servers.
Format show radius statistics {
Mode Privileged EXEC
| Term Definition | |
| ipaddr The IP address of the server. | |
| dnsname The DNS name of the server. | |
| servername The alias name to identify the server. | |
| RADIUS Server Name The name of the authenticating server. | |
| Server Host Address The IP address of the host. | |
| Access Requests | The number of RADIUS Access-Request packets sent to this server. This number does not include retransmissions. |
| Access Retransmissions | The number of RADIUS Access-Request packets retransmitted to this RADIUS authentication server. |
| Access Accepts | The number of RADIUS Access-Accept packets, including both valid and invalid packets, that were received from this server. |
| Access Rejects | The number of RADIUS Access-Reject packets, including both valid and invalid packets, that were received from this server. |
| Access Challenges | The number of RADIUS Access-Challenge packets, including both valid and invalid packets, that were received from this server. |
| Malformed Access Responses | The number of malformed RADIUS Access-Response packets received from this server. Malformed packets include packets with an invalid length. Bad authenticators or signature attributes or unknown types are not included as malformed access responses. |
| Bad Authenticators The | number of RADIUS Access-Response packets containing invalid authenticators or signature attributes received from this server. |
| Pending Requests | The number of RADIUS Access-Request packets destined for this server that have not yet timed out or received a response. |
| Timeouts The number of | authentication timeouts to this server. |
| Unknown Types The nu | number of packets of unknown type that were received from this server on the authentication port. |
| Packets Dropped | The number of RADIUS packets received from this server on the authentication port and dropped for some other reason. |
The following shows example CLI display output for the command.
(Switch) #show radius statistics 192.168.37.200
| RADIUS Server Name...... | Default_RADIUS_Server |
| Server Host Address...... | 192.168.37.200 |
| Access Requests...... | 0.00 |
| Access Retransmissions...... | 0 |
| Access Accepts...... | 0 |
| Access Rejects...... | 0 |
| Access Challenges...... | 0 |
| Malformed Access Responses...... | 0 |
| Bad Authenticators...... | 0 |
| Pending Requests...... | 0 |
| Timeouts...... | 0 |
| Unknown Types...... | 0 |
| Packets Dropped...... | 0 |
(Switch) #show radius statistics name Default_RADIUS_Server
| RADIUS Server Name | Default_RADIUS_Server |
| Server Host Address | 192.168.37.200 |
| Access Requests | 0.00 |
| Access Retransmissions | 0 |
| Access Accepts | 0 |
| Access Rejects | 0 |
| Access Challenges | 0 |
| Malformed Access Responses | 0 |
| Bad Authenticators | 0 |
| Pending Requests | 0 |
Timeouts.... 0
Unknown Types.... 0
Packets Dropped.... 0
TACACS+ Commands
TACACS+ provides access control for networked devices via one or more centralized servers. Similar to RADIUS, this protocol simplifies authentication by making use of a single database that can be shared by many clients on a large network. TACACS+ is based on the TACACS protocol (described in RFC1492) but additionally provides for separate authentication, authorization, and accounting services. The original protocol was UDP based with messages passed in clear text over the network; TACACS+ uses TCP to ensure reliable delivery and a shared key configured on the client and daemon server to encrypt all messages.
tacacs-server host
Use the tacacs-server host command in Global Configuration mode to configure a TACACS+ server. This command enters into the TACACS+ configuration mode. The
Format tacacs-server host
Mode Global Config
no tacacs-server host
Use the no tacacs-server host command to delete the specified hostname or IP address. The
Format no tacacs-server host
Mode Global Config
tacacs-server key
Use the tacacs-server key command to set the authentication and encryption key for all TACACS+ communications between the switch and the TACACS+ daemon. The
Text-based configuration supports TACACS server's secrets in encrypted and non-encrypted format. When you save the configuration, these secret keys are stored in encrypted format only. If you want to enter the key in encrypted format, enter the key along with the encrypted keyword. In the show running config command's display, these secret keys are displayed in encrypted format. You cannot show these keys in plain text format.
Format tacacs-server key [
Mode Global Config
no tacacs-server key
Use the no tacacs-server key command to disable the authentication and encryption key for all TACACS+ communications between the switch and the TACACS+ daemon. The
Format no tacacs-server key
Mode Global Config
tacacs-server timeout
Use the tacacs-server timeout command to set the timeout value for communication with the TACACS+ servers. The
Default 5
Format tacacs-server timeout
Mode Global Config
no tacacs-server timeout
Use the no tacacs-server timeout command to restore the default timeout value for all TACACS servers.
Format no tacacs-server timeout
Mode Global Config
key
Use the key command in TACACS Configuration mode to specify the authentication and encryption key for all TACACS communications between the device and the TACACS server. This key must match the key used on the TACACS daemon. The
Text-based configuration supports TACACS server's secrets in encrypted and non-encrypted format. When you save the configuration, these secret keys are stored in encrypted format only. If you want to enter the key in encrypted format, enter the key along with the encrypted keyword. In the show running config command's display, these secret keys are displayed in encrypted format. You cannot show these keys in plain text format.
Format key [
Mode TACACS Config
port
Use the port command in TACACS Configuration mode to specify a server port number. The server
Default 49
Format port
Mode TACACS Config
priority
Use the priority command in TACACS Configuration mode to specify the order in which servers are used, where 0 (zero) is the highest priority. The
Default 0
Format priority
Mode TACACS Config
timeout
Use the timeout command in TACACS Configuration mode to specify the timeout value in seconds. If no timeout value is specified, the global value is used. The
Format timeout
Mode TACACS Config
show tacacs
Use the show tacacs command to display the configuration and statistics of a TACACS+ server.
Format show tacacs [
Mode Privileged EXEC
| Term Definition | |
| Host Address The IP address or hostname of the configured TACACS+ server. | |
| Port The configured TACACS+ server port number. | |
| TimeOut The timeout in seconds for establishing a TCP connection. | |
| Priority The preference order in which TACACS+ servers are contacted. If a server connection fails, the next highest priority server is contacted. | |
Configuration Scripting Commands
Configuration Scripting allows you to generate text-formatted script files representing the current configuration of a system. You can upload these configuration script files to a PC or UNIX system and edit them. Then, you can download the edited files to the system and apply the new configuration. You can apply configuration scripts to one or more switches with no or minor modifications.
Use the show running-config command (see “show running-config” on page 9-15) to capture the running configuration into a script. Use the copy command (see “copy” on page 9-32) to transfer the configuration script to or from the switch.
You should use scripts on systems with default configuration; however, you are not prevented from applying scripts on systems with non-default configurations.
Scripts must conform to the following rules:
- Script files are not distributed across the stack, and only live in the unit that is the master unit at the time of the file download.
- The file extension must be “.scr”.
- A maximum of ten scripts are allowed on the switch.
- The combined size of all script files on the switch shall not exceed 2048 KB.
- The maximum number of configuration file command lines is 2000.
You can type single-line annotations at the command prompt to use when you write test or configuration scripts to improve script readability. The exclamation point (!) character flags the beginning of a comment. The comment flag character can begin a word anywhere on the command line, and all input following this character is ignored. Any command line that begins with the “!” character is recognized as a comment line and ignored by the parser.
The following lines show an example of a script:
! Script file for displaying management access
show telnet !Displays the information about remote connections
! Display information about direct connections
show serial
! End of the script file!

Note: To specify a blank password for a user in the configuration script, you must specify it as a space within quotes. For example, to change the password for user jane from a blank password to hello, the script entry is as follows:
users passwd jane
" "
hello
hello
script apply
This command applies the commands in the script to the switch. The
Format script apply
Mode Privileged EXEC
script delete
This command deletes a specified script where the
Format script delete {
Mode Privileged EXEC
script list
This command lists all scripts present on the switch as well as the remaining available space.
Format script list
Mode Global Config
| Term Definition | |
| Configuration Script Name of the script. | |
| Size Privileged EXEC | |
script show
This command displays the contents of a script file, which is named
Format script show
Mode Privileged EXEC
| Term Definition | |
| Output Format line | : |
script validate
This command validates a script file by parsing each line in the script file where
Format script validate
Mode Privileged EXEC
Pre-login Banner and System Prompt Commands
This section describes the commands you use to configure the pre-login banner and the system prompt. The pre-login banner is the text that displays before you login at the User: prompt.
copy (pre-login banner)
The copy command includes the option to upload or download the CLI Banner to or from the switch. You can specify local URLs by using TFTP, Xmodem, Ymodem, or Zmodem.

Note:
Default none
Format copy <Code Sample Variable><tftp://<ipaddr>/<filepath>/<filename>>(Code Sample Variable> nvram:clibanner
copy nvram:clibanner <Code Sample Variable><tftp://<ipaddr>/<filepath>/<filename>>(Code Sample Variable>
Mode Privileged EXEC
set prompt
This command changes the name of the prompt. The length of name may be up to 64 alphanumeric characters.
Format set prompt
Mode Privileged EXEC
Chapter 11
Log Messages
This chapter lists common log messages, along with information regarding the cause of each message. There is no specific action that can be taken per message. When there is a problem being diagnosed, a set of these messages in the event log, along with an understanding of the system configuration and details of the problem will assist NETGEAR, Inc. in determining the root cause of such a problem.

Note: This chapter is not a complete list of all syslog messages.
The Log Messages chapter includes the following sections:
- “Core” on page 11-1
- “Utilities” on page 11-4
- “Management” on page 11-6
- “Switching” on page 11-10
- “QoS” on page 11-16
- “Routing/IPv6 Routing” on page 11-17
- “Multicast” on page 11-21
- “Stacking” on page 11-23
• “Technologies” on page 11-23 - “O/S Support” on page 11-26
Core
Table 11-1: BSP Log Messages
| Component Message Cause | |
| BSP Event(0xaaaaaaa) Switch has restarted. | |
| BSP Starting code... BSP initialization complete, starting 7000 | series application. |
Table 11-2: NIM Log Messages
| Component Message Cause | ||
| NIM NIM: L7_ATT | ACH out of order for intIfNum(x) unit x slot x port x | Interface creation out of order |
| NIM NIM: Failed to | find interface at unit x slot x port x for event(x) | There is no mapping between the USP and Interface number |
| NIM NIM: L7_DET | ACH out of order for intIfNum(x) unit x slot x port x | Interface creation out of order |
| NIM NIM: L7_DEL | ETE out of order for intIfNum(x) unit x slot x port x | Interface creation out of order |
| NIM NIM: event(x). | intf(x),component(x), in wrong phase | An event was issued to NIM during the wrong configuration phase (probably Phase 1, 2, or WMU) |
| NIM NIM: Failed to | notify users of interface change | Event was not propagated to the system |
| NIM NIM: failed to | send message to NIM message Queue. | NIM message queue full or non-existent |
| NIM NIM: Failed to | notify the components of L7_CREATE event | Interface not created |
| NIM NIM: Attempted | event (x), on USP x.x.x before phase 3 | A component issued an interface event during the wrong initialization phase |
| NIM NIM: incorrect | phase for operation An API call was made during the wrong initialization phase | |
| NIM NIM: Component(x) failed on event(x) for intIfNum(x) | A component responded with a fail indication for an interface event | |
| NIM NIM: Timeout | event(x), intIfNum(x) remainingMask = “xxxx” | A component did not respond before the NIM timeout occurred |
Table 11-3: System Log Messages
| Component Message Cause | |
| SYSTEM Configuration file Switch CLI.cfg size is 0 (zero) bytes | The configuration file could not be read. This message may occur on a system for which no configuration has ever been saved or for which configuration has been erased. |
| SYSTEM could not separate SYSAPI_CONFIG_FILENAME | The configuration file could not be read. This message may occur on a system for which no configuration has ever been saved or for which configuration has been erased. |
| SYSTEM Building defaults for fileversion | Configuration did not exist or could not be read for the specified feature or file. Default configuration values will be used. The file name and version are indicated. |
| SYSTEM File: same version (version num) but the sizes(-)<expected version size) differ | The configuration file which was loaded was of a different size than expected for the version number. This message indicates the configuration file needed to be migrated to the version number appropriate for the code image. This message may appear after upgrading the code image to a more current release. |
| SYSTEM Migrating config filefrom versionto | The configuration file identified was migrated from a previous version number. Both the old and new version number are specified. This message may appear after upgrading the code image to a more current release. |
| SYSTEM Building Defaults Configuration did not exist or could not be read for the specified feature. Default configuration values will be used. | |
| SYSTEM sysapiCfgFileGet failed size =version = | Configuration did not exist or could not be read for the specified feature. This message is usually followed by a message indicating that default configuration values will be used. |
Utilities
Table 11-4: Trap Mgr Log Message
| Component Message Cause | |
| Trap Mgr Link Up/Down: unit/slot/port An interface changed link state. | |
Table 11-5: DHCP Filtering Log Messages
| Component Message Cause | ||
| DHCP Filtering | Unable to create r/w lock for DHCP Filtering | Unable to create semaphore used for dhcp filtering configuration structure . |
| DHCP Filtering Failed to register with nv Store. Unable to register save and restore functions for configuration save | ||
| DHCP Filtering Failed to register with NIM Unable to register with NIM for interface callback functions | ||
| DHCP Filtering Error on call to sysapiCfgFileWrite file Error on trying to save configuration . | ||
Table 11-6: NVStore Log Messages
| Component Message Cause | |
| NVStore Building defaults for file XXX A component's configuration file does not exist or the file's checksum is incorrect so the component's default configuration file is built. | |
| NVStore Error on call to osapiFsWrite routine on file XXX | Either the file cannot be opened or the OS's file I/O returned an error trying to write to the file. |
| NVStore File XXX corrupted from file system.Checksum mismatch. | The calculated checksum of a component's configuration file in the file system did not match the checksum of the file in memory. |
| NVStore Migrating config file XXX from version Y to Z | A configuration file version mismatch was detected so a configuration file migration has started. |
Table 11-7: RADIUS Log Messages
| Component Message Cause | ||
| RADIUS RADIUS: | Invalid data length - xxx The RADIUS Client | received an invalid message from the server. |
| RADIUS RADIUS: | Failed to send the request A problem communicating with the RADIUS server. | |
| RADIUS RADIUS: | Failed to send all of the request A problem communicating with the RADIUS server during transmit. | |
| RADIUS RADIUS: | Could not get the Task Sync semaphore! | Resource issue with RADIUS Client service. |
| RADIUS RADIUS: | Buffer is too small for response processing | RADIUS Client attempted to build a response larger than resources allow. |
| RADIUS RADIUS: | Could not allocate accounting requestInfo | Resource issue with RADIUS Client service. |
| RADIUS RADIUS: | Could not allocate requestInfo Resource issue with RADIUS Client service. | |
| RADIUS RADIUS: | osapiSocketRecvFrom returned error | Error while attempting to read data from the RADIUS server. |
| RADIUS RADIUS: | Accounting-Response failed to validate, id=xxx | The RADIUS Client received an invalid message from the server. |
| RADIUS RADIUS: | User (xxx) needs to respond for challenge | An unexpected challenge was received for a configured user. |
| RADIUS RADIUS: | Could not allocate a buffer for the packet | Resource issue with RADIUS Client service. |
| RADIUS RADIUS: | Access-Challenge failed to validate, id=xxx | The RADIUS Client received an invalid message from the server. |
| RADIUS RADIUS: | Failed to validate Message-Authenticator, id=xxx | The RADIUS Client received an invalid message from the server. |
| RADIUS RADIUS: | Access-Accpet failed to validate, id=xxx | The RADIUS Client received an invalid message from the server. |
| RADIUS RADIUS: | Invalid packet length - xxx The RADIUS Client received an invalid message from the server. | |
| RADIUS RADIUS: | Response is missing Message-Authenticator, id=xxx | The RADIUS Client received an invalid message from the server. |
| RADIUS RADIUS: | Server address doesn't match configured server | RADIUS Client received a server response from an unconfigured server. |
Table 11-8: TACACS+ Log Messages
| Component Message Cause | ||
| TACACS+ TACACS | S+: authentication error, no server to contact | TACACS+ request needed, but no servers are configured. |
| TACACS+ TACACS | S+: connection failed to server x.x.x.x | TACACS+ request sent to server x.x.x.x but no response was received. |
| TACACS+ TACACS | S+: no key configured to encrypt packet for server x.x.x.x | No key configured for the specified server. |
| TACACS+ TACACS | S+: received invalid packet type from server. | Received packet type that is not supported. |
| TACACS+ TACACS | S+: invalid major version in received packet. | Major version mismatch. |
| TACACS+ TACACS | S+: invalid minor version in received packet. | Minor version mismatch. |
Table 11-9: LLDP Log Message
| Component Message Cause | |
| LLDP lldpTask(): invalid message type:xx.xxxxxx:xx | Unsupported LLDP packet received. |
Table 11-10: SNTP Log Message
| Component Message Cause | |
| SNTP SNTP: system clock synchronized on %s UTC | Indicates that SNTP has successfully synchronized the time of the box with the server. |
Management
Table 11-11: SNMP Log Message
| Component Message Cause | |
| SNMP EDB Callback: Unit Join: x. A new unit has joined the stack. | |
Table 11-12: EmWeb Log Messages
| Component Message Cause | |
| EmWeb EMWEB (Telnet): Max number of Telnet login sessions exceeded | A user attempted to connect via telnet when the maximum number of telnet sessions were already active. |
| EmWeb EMWEB (SSH): Max number of SSH login sessions exceeded | A user attempted to connect via SSH when the maximum number of SSH sessions were already active. |
| EmWeb Handle table overflow All the available EmWeb connection handles are being used and the connection could not be made. | |
| EmWeb ConnectionType EmWeb socket accept() failed: errno | Socket accept failure for the specified connection type. |
| EmWeb ewsNetHTTTPReceive failure in NetReceiveLoop() - closing connection. | Socket receive failure. |
| EmWeb EmWeb: connection allocation failed Memory allocation failure for the new connection. | |
| EmWeb EMWEB TransmitPending : EWOULDBLOCK error sending data | Socket error on send. |
| EmWeb ewaNetHTTPEnd: internal error - handle not in Handle table | EmWeb handle index not valid. |
| EmWeb ewsNetHTTTPReceive:recvBufCnt exceeds MAX_QUEUED_RECV_BUFS! | The receive buffer limit has been reached. Bad request or DoS attack. |
| EmWeb EmWeb accept: XXXX Accept function for new SSH connection failed. XXXX indicates the error info. | |
Table 11-13: CLI_UTIL Log Messages
| Component Message Cause | |
| CLI_UTIL Telnet Send | Failed errno = 0x%x Failed to send text string to the telnet client. |
| CLI_UTIL osapiFsDir | failed Failed to obtain the directory information from a volume's directory. |
Table 11-14: WEB Log Messages
| Component Message Cause | ||
| WEB Max clients exceeded This message is shown when the maximum allowed java client connections to the switch is exceeded. | ||
| WEB Error on send to sockfd XXXX, closing connection | Failed to send data to the java clients through the socket. | |
| WEB # (XXXX) Form Submission Failed. No Action Taken. | The form submission failed and no action is taken. XXXX indicates the file under consideration. | |
| WEB ewaFormServe_file_download() - WEB Unknown return code from tftp download result | Unknown error returned while downloading file using TFTP from web interface | |
| WEB ewaFormServe_file_upload() - Unknown return code from tftp upload result | Unknown error returned while uploading file using TFTP from web interface. | |
| WEB Web UI Screen with unspecified access attempted to be brought up | Failed to get application-specific authorization handle provided to EmWeb/Server by the application in ewsAuthRegister(). The specified web page will be served in read-only mode. | |
Table 11-15: CLI_WEB_MGR Log Messages
| Component Message Cause | |
| CLI_WEB_MGR File size is greater than 2K The banner file size is greater than 2K bytes. | |
| CLI_WEB_MGR No. of rows greater than allowed maximum of XXXX | When the number of rows exceeds the maximum allowed rows |
Table 11-16: SSHD Log Messages
| Component Message Cause | ||
| SSHD SSHD: Unable to create the global (data) semaphore | Failed to create semaphore for global data protection. | |
| SSHD SSHD: Msg | Queue is full, event = XXXX Failed to send the message to the SSHD message queue as message queue is full. XXXX indicates the event to be sent | |
Table 11-16: SSHD Log Messages
| Component Message Cause | |
| SSHD SSHD: Unknown UI event in message, event=XXXX | Failed to dispatch the UI event to the appropriate SSHD function as it's an invalid event. XXXX indicates the event to be dispatched. |
| SSHD sshdApiCnfrCommand: Failed calling sshdlssueCmd. | Failed to send the message to the SSHD message queue |
Table 11-17: SSLT Log Messages
| Component Message Cause | ||
| SSLT SSLT: Exceeded maximum, sslConnectionTask | Exceeded maximum allowed SSLT connections. | |
| SSLT SSLT: Error | creating Secure server socket6 Failed to create secure server socket for IPV6. | |
| SSLT SSLT: Can't | connect to unsecure server at XXXX, result = YYYY, errno = ZZZZ | Failed to open connection to unsecure server. XXXX is the unsecure server socket address. YYYY is the result returned from connect function and ZZZZ is the error code. |
| SSLT SSLT: Msg | Queue is full, event=XXXX Failed to send the | received message to the SSLT message queue as message queue is full. XXXX indicates the event to be sent. |
| SSLT SSLT: Unknown UI event in message, event=XXXX | Failed to dispatch the received UI event to the appropriate SSLT function as it's an invalid event. XXXX indicates the event to be dispatched. | |
| SSLT sslApiCnfgr | Command: Failed calling sslIssueCmd. | Failed to send the message to the SSLT message queue. |
| SSLT SSLT: Error | loading certificate from file XXXX | Failed while loading the SSLcertificate from specified file. XXXX indicates the file from where the certificate is being read. |
| SSLT SSLT: Error | loading private key from file Failed while loading private key for SSL connection. | |
| SSLT SSLT: Error | setting cipher list (no valid ciphers) | Failed while setting cipher list. |
| SSLT SSLT: Could not delete the SSL semaphores Failed to delete SSL semaphores during cleanup.of all resources associated with the OpenSSL Locking semaphores. | ||
Table 11-18: User_Manager Log Messages
| Component Message Cause | |
| User_Manager User Login Failed for XXXX Failed to authenticate user login. XXXX indicates the username to be authenticated. | |
| User_Manager Access level for user XXXX could not be determined. Setting to READ_ONLY. | Invalid access level specified for the user. The access level is set to READ_ONLY. XXXX indicates the username. |
| User_Manager Could not migrate config file XXXX from version YYYY to ZZZZ. Using defaults. | Failed to migrate the config file. XXXX is the config file name. YYYY is the old version number and ZZZZ is the new version number. |
Switching
Table 11-19: Protected Ports Log Messages
| Component Message Cause | ||
| Protected Ports | Protected Port: failed to save configuration | This appears when the protected port configuration cannot be saved |
| Protected Ports | protectedPortCnfgrInitPhase1Process: Unable to create r/w lock for protectedPort | This appears when protectedPortCfgRWLock Fails |
| Protected Ports | protectedPortCnfgrInitPhase2Process: Unable to register for VLAN change callback | This appears when nimRegisterIntfChange with VLAN fails |
| Protected Ports | Cannot add intIfNum xxx to group yyy | This appears when an interface could not be added to a particular group. |
| Protected Ports | unable to set protected port group This appears when a dtl call fails to add interface mask at the driver level | |
| Protected Ports | Cannot delete intIfNum xxx from group yyy | This appears when a dtl call to delete an interface from a group fails |
| Protected Ports | Cannot update group YYY after deleting interface XXX | This message appears when an update group for a interface deletion fails |
| Protected Ports | Received an interface change callback while not ready to receive it | This appears when an interface change call back has come before the protected port component is ready. |
Table 11-20: IP Subnet VLANS Log Messages
| Component Message Cause | |
| IPsubnet vlans ERROR vlanIpSubnetSubnetValid :Invalid subnet | This occurs when an invalid pair of subnet and netmask has come from the CLI |
| IPsubnet vlans IP Subnet Vlans: failed to save configuration | This message appears when save configuration of subnet vlans failed |
| IPsubnet vlans vlanIpSubnetCnfgrInitPhase1Process: Unable to create r/w lock for vlanIpSubnet | This appears when a read/write lock creations fails |
| IPsubnet vlans vlanIpSubnetCnfgrInitPhase2Process: Unable to register for VLAN change callback | This appears when this component unable to register for vlan change notifications |
| IPsubnet vlans vlanIpSubnetCnfgrFiniPhase1Process: could not delete avl semaphore | This appears when a semaphore deletion of this component fails. |
| IPsubnet vlans vlanIpSubnetDtlVlanCreate: Failed This appears when a dtl call fails to add an entry into the table | |
| IPsubnet vlans vlanIpSubnetSubnetDeleteApply: Failed | This appears when a dtl fails to delete an entry from the table |
| IPsubnet vlans vlanIpSubnetVlanChangeCallback: Failed to add an Entry | This appears when a dtl fails to add an entry for a vlan add notify event. |
| IPsubnet vlans vlanIpSubnetVlanChangeCallback: Failed to delete an Entry | This appears when a dtl fails to delete an entry for an vlan delete notify event. |
Table 11-21: Mac-based VLANs Log Messages
| Component Message Cause | ||
| Mac based VLANS | MAC VLANs: Failed to save configuration This message appears when save configuration of Mac vlans failed | |
| Mac based VLANS | vlanMacCnfgrInitPhase1Process: Unable to create r/w lock for vlanMac | This appears when a read/write lock creations fails |
| Mac based VLANS | Unable to register for VLAN change callback | This appears when this component unable to register for vlan change notifications |
| Mac based VLANS | vlanMacCnfgrFiniPhase1Process: could not delete avl semaphore | This appears when a semaphore deletion of this component fails. |
| Mac based VLANS | vlanMacAddApply: Failed to add an entry This appears when a dtl call fails to add an entry into the table | |
| Mac based VLANS | vlanMacDeleteApply: Unable to delete an Entry | This appears when a dtl fails to delete an entry from the table |
| Mac based VLANS | vlanMacVlanChangeCallback: Failed to add an entry | This appears when a dtl fails to add an entry for a vlan add notify event. |
Table 11-21: Mac-based VLANs Log Messages
| Component Message Cause | ||
| Mac based VLANS | vlanMacVlanChangeCallback: Failed to delete an entry | This appears when a dtl fails to delete an entry for an vlan delete notify event. |
Table 11-22: 802.1x Log Messages
| Component Message Cause | ||
| 802.1X | function: Failed calling dot1xlssueCmd | 802.1X message queue is full |
| 802.1X function: E | AP message not received from server | RADIUS server did not send required EAP message |
| 802.1X | function: Out of System buffers | 802.1X cannot process/transmit message due to lack of internal buffers |
| 802.1X function: could not set state to, intf xxx | DTL call failed setting authorization state of the port | |
| 802.1X dot1xApply | ConfigData: Unable to dot1x in driver | DTL call failed enabling/disabling 802.1X |
| 802.1X dot1xSend | RespToServer: dot1xRadiusAccessRequestSend failed | Failed sending message to RADIUS server |
| 802.1X dot1xRadius | AcceptProcess: error calling radiusAccountingStart, ifIndex=xxx | Failed sending accounting start to RADIUS server |
| 802.1X function: failed | sending terminate cause, intf xxx | Failed sending accounting stop to RADIUS server |
Table 11-23: IGMP Snooping Log Messages
| Component Message Cause | ||
| IGMP Snooping | function: osapiMessageSend failed | IGMP Snooping message queue is full |
| IGMP Snooping F | failed to set global igmp snooping mode to xxx | Failed to set global IGMP Snooping mode due to message queue being full |
| IGMP Snooping F | failed to set igmp snooping mode xxx for interface yyy | Failed to set interface IGMP Snooping mode due to message queue being full |
| IGMP Snooping F | failed to set igmp mrouter mode xxx for interface yyy | Failed to set interface multicast router mode due to IGMP Snooping message queue being full |
| IGMP Snooping F | failed to set igmp snooping mode xxx for vlan yyy | Failed to set VLAN IGM Snooping mode due to message queue being full |
Table 11-23: IGMP Snooping Log Messages
| Component Message Cause | |
| IGMP Snooping Failed to set igmp mrouter mode %d for interface xxx on Vlan yyy | Failed to set VLAN multicast router mode due to IGMP Snooping message queue being full |
| IGMP Snooping snoopCnfgrInitPhase1Process: Error allocating small buffers | Could not allocate buffers for small IGMP packets |
| IGMP Snooping snoopCnfgrInitPhase1Process: Error allocating large buffers | Could not allocate buffers for large IGMP packets |
Table 11-24: GARP/GVRP/GMRP Log Messages
| Component Message Cause | ||
| GARP/GVRP/GMRP | garpSpanState, garplfStateChange,GarplssueCmd, garpDot1sChangeCallBack,garpApiCnfgrCommand,garpLeaveAllTimerCallback,garpTimerCallback: QUEUE SEND FAILURE: | The garpQueue is full, logs specifics of the message content like internal interface number, type of message etc. |
| GARP/GVRP/GMRP | GarpSendPDU: QUEUE SEND FAILURE The | the garpPduQueue is full, logs specific of the GPDU, internal interface number, vlan id, buffer handle etc. |
| GARP/GVRP/GMRP | garpMapIntfIsConfigurable,gmrpMapIntfIsConfigurable: Error accessing GARP/GMRP config data for interface %d in garpMapIntfIsConfigurable. | A default configuration does not exist for this interface. Typically a case when a new interface is created and has no pre-configuration. |
| GARP/GVRP/GMRP | garpTraceMsgQueueUsage: garpQueue usage has exceeded fifty/eighty/ninety percent | Traces the build up of message queue.Helpful in determining the load on GARP. |
| GARP/GVRP/GMRP | gid_destroy_port: Error Removing port %d registration for vlan-mac %d - %02X:%02X:%02X:%02X:%02X:%02X | Mismatch between the gmd (gmrp database) and MFDB. |
| GARP/GVRP/GMRP | gmd_create_entry: GMRP failure adding MFDB entry: vlan %d and address %s | MFDB table is full. |
Table 11-25: 802.3ad Log Messages
| Component Message Cause | |
| 802.3ad dot3adRe receiveMachine: received default event %x | Received a LAG PDU and the RX state machine is ignoring this LAGPDU |
Table 11-25: 802.3ad Log Messages
| Component Message Cause | |
| 802.3ad dot3adNimEventCompletionCallback, dot3adNimEventCreateCompletionCallback: DOT3AD: notification failed for event(%d), intf(%d), reason(%d) | The event sent to NIM was not completed successfully |
Table 11-26: FDB Log Message
| Component Message Cause | |
| FDBfdbSetAddressAgingTimeOut: Failure setting fid %d address aging timeout to %d | Unable to set the age time in the hardware |
Table 11-27: Double VLAN Tag Log Message
| Component Message Cause | |
| Double Vlan Tag dvlantagIntflsConfigurable: Error accessing dvlantag config data for interface %d | A default configuration does not exist for this interface. Typically a case when a new interface is created and has no pre-configuration. |
Table 11-28: IPv6 Provisioning Log Message
| Component Message Cause | ||
| IPV6 Provisioning | ipv6ProvIntfIsConfigurable: Error accessing IPv6 Provisioning config data for interface %d | A default configuration does not exist for this interface. Typically a case when a new interface is created and has no pre-configuration. |
Table 11-29: MFDB Log Message
| Component Message Cause | |
| MFDB mfdbTreeEntryUpdate: entry does not exist Trying to update a non existing entry | |
Table 11-30: 802.1Q Log Messages
| Component Message Cause | ||
| 802.1Q dot1qIssue | Cmd: Unable to send message %d to dot1qMsgQueue for vlan %d - %d msgs in queue | dot1qMsgQueue is full. |
| 802.1Q dot1qVlan | CreateProcess: Attempt to create a vlan with an invalid vlan id %d; VLAN %d not in range, | This accommodates for reserved vlan ids. i.e. 4094 - x |
| 802.1Q | dot1qMapIntfIsConfigurable: Error accessing DOT1Q config data for interface %d in dot1qMapIntfIsConfigurable. | A default configuration does not exist for this interface. Typically a case when a new interface is created and has no pre-configuration. |
| 802.1Q dot1qVlan | DeleteProcess: Deleting the default VLAN | Typically encountered during clear Vlan and clear config |
| 802.1Q dot1qVlan | MemberSetModify, dot1qVlanTaggedMemberSetModify: Dynamic entry %d can only be modified after it is converted to static | If this vlan is a learnt via GVRP then we cannot modify its member set via management. |
Table 11-31: 802.1S Log Messages
| Component Message Cause | |
| 802.1S dot1slssue | Cmd: Dot1s Msg Queue is full!!!!Event: %u, on interface: %u, for instance: %u |
| 802.1S dot1sState | MachineRxBpdu(): Rcvd BPDU Discarded |
| 802.1S dot1sBpdu | Transmit(): could not get a buffer Out of system buffers |
Table 11-32: Port Mac Locking Log Message
| Component Message Cause | |
| Port Mac Locking | pmIMapIntflsConfigurable: Error accessing PML config data for interface %d in pmIMapIntflsConfigurable. |
Table 11-33: Protocol-based VLANs Log Messages
| Component Message Cause | ||
| Protocol Based VLANs | pbVlanCnfgrInitPhase2Process: Unable to register NIM callback | Appears when nimRegisterIntfChange fails to register pbVlan for link state changes. |
| Protocol Based VLANs | pbVlanCnfgrInitPhase2Process: Unable to register pbVlan callback with vlans | Appears when vlanRegisterForChange fails to register pbVlan for vlan changes. |
| Protocol Based VLANs | pbVlanCnfgrInitPhase2Process: Unable to register pbVlan callback with nvStore | Appears when nvStoreRegister fails to register save and restore functions for configuration save. |
QoS
Table 11-34: ACL Log Messages
| Component Message Cause | ||
| ACL Total number | of ACL rules (x) exceeds max (y) on intf i. | The combination of all ACLs applied to an interface has resulted in requiring more rules than the platform supports. |
| ACL | ACL name, rule x: This rule is not being logged | The ACL configuration has resulted in a requirement for more logging rules than the platform supports. The specified rule is functioning normally except for the logging action. |
| ACL aclLogTask: error logging ACL rule trap for correlator number | The system was unable to send an SNMP trap for this ACL rule which contains a logging attribute. | |
| ACL | IP ACL number: Forced truncation of one or more rules during config migration | While processing the saved configuration, the system encountered an ACL with more rules than is supported by the current version. This may happen when code is updated to a version supporting fewer rules per ACL than the previous version. |
Table 11-35: CoS Log Message
| Component Message Cause | ||
| COS cosCnfgrInitP | Phase3Process: Unable to apply saved config -- using factory defaults | The COS component was unable to apply the saved configuration and has initialized to the factory default settings. |
Table 11-36: DiffServ Log Messages
| Component Message Cause | |
| DiffServ diffserv.c | 165: diffServRestore Failed to reset DiffServ. Recommend resetting deviceWhile attempting to clear the running configuration an error was encountered in removing the current settings. This may lead to an inconsistent state in the system and resetting is advised. |
| DiffServ Policy invalid for service intf: "policy name, intIfNum x, direction y | The DiffServ policy definition is not compatible with the capabilities of the interface specified. Check the platform release notes for information on configuration limitations. |
Routing/IPv6 Routing
Table 11-37: DHCP Relay Log Messages
| Component Message Cause | ||
| DHCP relay REQUEST hops field more than config value The DHCP relay agent has processed a DHCP request whose HOPS field is larger than the maximum value allowed. The relay agent will not forward a message with a hop count greater than 4. | ||
| DHCP relay Request's seconds field less than the config value | The DHCP relay agent has processed a DHCP request whose SECS field is larger than the configured minimum wait time allowed. | |
| DHCP relay process DhcpPacket: invalid DHCP packet type: %u\n | The DHCP relay agent has processed an invalid DHCP packet. Such packets are discarded by the relay agent. | |
Table 11-38: OSPFv2 Log Messages
| Component Message Cause | ||
| OSPFv2 Best route client deregistration failed for OSPF Redist | OSPFv2 registers with the IPv4 routing table manager ("RTO") to be notified of best route changes. There are cases where OSPFv2 deregisters more than once, causing the second deregistration to fail. The failure is harmless. | |
| OSPFv2 XX_Call() failure in _checkTimers for thread 0x869bcc0 | An OSPFv2 timer has fired but the message queue that holds the event has filled up. This is normally a fatal error. | |
| OSPFv2 Warning: OSPF LSDB is 90% full (22648 LSAs). | OSPFv2 limits the number of Link State Advertisements (LSAs) that can be stored in the link state database (LSDB). When the database becomes 90 or 95 percent full, OSPFv2 logs this warning. The warning includes the current size of the database. | |
| OSPFv2 The number of LSAs, 25165, in the OSPF LSDB has exceeded the LSDB memory allocation. | When the OSPFv2 LSDB becomes full, OSPFv2 logs this message. OSPFv2 reoriginates its router LSAs with the metric of all non-stub links set to the maximum value to encourage other routers to not compute routes through the overloaded router. | |
| OSPFv2 Dropping the DD packet because of MTU mismatch | OSPFv2 ignored a Database Description packet whose MTU is greater than the IP MTU on the interface where the DD was received. | |
| OSPFv2 LSA Checksum error in LsUpdate, dropping LSID 1.2.3.4 checksum 0x1234. | OSPFv2 ignored a received link state advertisement (LSA) whose checksum was incorrect. | |
Table 11-39: OSPFv3 Log Messages
| Component Message Cause | |
| OSPFv3 Best route client deregistration failed for OSPFv3 Redist | OSPFv3 registers with the IPv6 routing table manager (“RTO6”) to be notified of best route changes. There are cases where OSPFv3 deregisters more than once, causing the second deregistration to fail.The failure is harmless. |
Table 11-39: OSPFv3 Log Messages
| Component Message Cause | ||
| OSPFv3 Warning: | OSPF LSDB is 90% full (15292 LSAs). | OSPFv3 limits the number of Link State Advertisements (LSAs) that can be stored in the link state database (LSDB). When the database becomes 90 or 95 percent full, OSPFv3 logs this warning. The warning includes the current size of the database. |
| OSPFv3 The number of LSAs, 16992, in the OSPF LSDB has exceeded the LSDB memory allocation. | When the OSPFv3 LSDB becomes full, OSPFv3 logs this message. OSPFv3 reoriginates its router LSAs with the R-bit clear indicating that OSPFv3 is overloaded. | |
| OSPFv3 LSA Checksum error detected for LSID 1.2.3.4 checksum 0x34f5. OSPFv3 Database may be corrupted. | OSPFv3 periodically verifies the checksum of each LSA in memory. OSPFv3 logs this | |
Table 11-40: Routing Table Manager Log Messages
| Component Message Cause | |
| Routing Table Manager | RTO is full. Routing table contains 8000 best routes, 8000 total routes. |
| Routing Table Manager | RTO no longer full. Bad adds: 10. Routing table contains 7999 best routes, 7999 total routes. |
Table 11-41: VRRP Log Messages
| Component Message Cause | |
| VRRP Changing priority to 255 for virtual router with VRID 1 on interface 1/0/1 | When the router is configured with the address being used as the virtual router ID, the router's priority is automatically set to the maximum value to ensure that the address owner becomes the VRRP master. |
| VRRP Changing priority to 100 for virtual router with VRID 1 on interface 1/0/1 | When the router is no longer the address owner, Switch CLI reverts the router's priority to the default. |
| VRRP vrrpPacketValidate: Invalid TTL VRRP ignored an incoming message whose time to live (TTL) in the IP header was not 255. | |
Table 11-42: ARP Log Message
| Component Message Cause | |
| ARP ARP received mapping for IP address xxx to MAC address yyy. This IP address may be configured on two stations. | When we receive an ARP response with different MAC address from another station with the same IP address as ours. This might be a case of misconfiguration. |
Table 11-43: RIP Log Message
| Component Message Cause | ||
| RIP RIP : discard response from xxx via unexpected interface | When RIP response is received with a source address not matching the incoming interface's subnet. | |
Table 11-44: DHCP6 Log Message
| Component Message Cause | |
| DHCP6 relay_to_server: Cannot relay to relay serverintf xxx: not IPv6 enabled | Relay is enabled but neither the outgoing interface nor the server IP address is specified. |
Multicast
Table 11-45: Cache Log Messages
| Component Message Cause | |
| Cache Out of memory when creating entry. When we run out of new cache (MFC) entry | memory while creating a new cache (MFC) entry |
| Cache Out of memory when creating cache. When we run out of the cache itself | memory while creating the cache itself |
Table 11-46: IGMP Log Messages
| Component Message Cause | ||
| IGMP Error creating | IGMP pipeError opening IGMP pipe | When we fail to create / open IGMP pipe for Mcast control messages |
| IGMP Error creating | IGMP data pipeError opening IGMP data pipe | When we fail to create / open IGMP data pipe for Mcast data messages |
| IGMP Error getting | memory for source record When we are unable to allocate memory for a source record in the received IGMP V3 report | |
| IGMP Failed getting | memory for new group When we are unable to allocate memory for a group record in the received IGMP V3/V2/V1 report | |
Table 11-47: IGMP-Proxy Log Messages
| Component Message Cause | |
| IGMP-Proxy Error getting memory for igmp host group record | When we are unable to allocate memory for the IGMP group record in the Host (Proxy) table |
| IGMP-Proxy Error getting memory for source record | When we are unable to allocate memory for the IGMP source record in the Host (Proxy) table |
Table 11-48: PIM-SM Log Messages
| Component Message Cause | ||
| PIM-SM PIM-SM not initialized This message arises when trying to activate pimsm interfaces or receiving pimsm packets when pimsm component is not initialized. | ||
| PIM-SM | Unable to take xxx semaphore | This message is logged when failed to acquire semaphore to access source list or group list or candidate Rp list or virtual interface list. The xxx specifies the list for which the access is denied. |
| PIM-SM Warning : | Could not send packet type xxx (pimsm packet type) on rtrIfNum | this warning is logged when failed to send a pimsm control packet on the specified router interface. |
| PIM-SM add_kernel_cache : memory allocation failed | This message is logged when there is insufficient memory to add an mroute entry into cache. | |
| PIM_SM Config error. | Trying to add static RP. Dynamic RP with same ip addr exists | Router learns RP-group mapping through Bootstrap messages received. This message pops when the static RP is configured which conflicts the mapping learnt dynamically through Bootstrap messages. |
| PIM-SM Inner xxx(source/group) address of register message is invalid | This log message appears when a register message is received with invalid inner ip source or group address. | |
Table 11-49: PIM-DM Log Messages
| Component Message Cause | |
| PIM-DM Out of memory when creating xxx This message is logged when there is insufficient memory to accommodate a new neighbor/(S,G) Entry, Prune, Graft, Join etc. | |
| PIM-DM Error entry->II_xxx LL creation error This message is logged when the SLL creation is Failed. | |
| PIM-DM | pim_interface_set: Could not give taskSema This message is logged when Task synchronization Semaphore release fails. |
| PIM-DM Error initializing CACHE This message is logged when the PIM-DM (S,G) entry Cache table initialization fails. | |
Table 11-49: PIM-DM Log Messages
| Component Message Cause | |
| PIM-DM Error creating PIM-DM pipe This message is logged when the PIM-DMPipe (that receives control messages)creation fails. | |
Table 11-50: DVMRP Log Messages
| Component Message Cause | ||
| DVMRP dvmrp_send_graft: failed getting memory for graft | Failed to allocate memory while sending a graft | |
| DVMRP dvmrp_register_neighbor: failed getting memory for nbr | Failed to allocate memory while registering a neighbor | |
| DVMRP dvmrp_recv_prune: failed getting memory for prune | Failed to allocate memory while receiving a prune | |
| DVMRP dvmrp_new_route: failed getting memory for route | Failed to get memory for a new route entry | |
| DVMRP dvmrp_prepare_routes: failed getting memory for dvmrp_ann_rt | Failed to get memory while announcing a new route entry | |
Stacking
Table 11-51: EDB Log Message
| Component Message Cause | |
| EDB EDB Callback: Unit Join:. Unithas joined the stack. | |
Technologies
Table 11-52: System General Error Messages
| Component Message Cause | ||
| OS Invalid USP unit = x, slot = x, port =x A port was not able to | be translated correctly during the receive. | |
Table 11-52: System General Error Messages
| Component Message Cause | ||
| OS In hapiBroadSystemMacAddress call to 'bcm_I2_addr_add' - FAILED : x | Failed to add an L2 address to the MAC table. This should only happen when a hash collision occurs or the table is full. | |
| OS Failed installing mirror action - rest of the policy applied successfully | A previously configured probe port is not being used in the policy. The release notes state that only a single probe port can be configured | |
| OS Policy x does not contain rule x The rule was not added to the policy due to a discrepancy in the rule count for this specific policy . Additionally, the message can be displayed when an old rule is being modified, but the old rule is not in the policy | ||
| OS ERROR: policy x, tmpPolicy x, size x, data x x x x x x x | An issue installing the policy due to a possible duplicate hash | |
| OS ACL x not found in internal table Attempting to delete a non-existent ACL | ||
| OS ACL internal table overflow Attempting to add an ACL to a full table | ||
| OS In hapiBroadCosCosQueueConfig, Failed to configure minimum bandwidth. Available bandwidth x | Attempting to configure the bandwidth beyond it's capabilities | |
| OS USL: failed to put sync response on queue A response to a sync request was not enqueued. This could indicate that a previous sync request was received after it was timed out | ||
| OS USL: failed to sync ipmc table on unit=x Either the transport failed or the message was dropped | ||
| OS usl_task_ipmd_msg_send(): failed to send with x | Either the transport failed or the message was dropped | |
| OS USL: No available entries in the STG table The Spanning Tree Group table is full in USL | ||
| OS USL: failed to sync stg table on unit=x Could not synchronize unit x due to a transport failure or API issue on remote unit. A synchronization retry will be issued | ||
| OS USL: A Trunk doesn't exist in USL Attempting to modify a Trunk that doesn't exist | ||
| OS USL: A Trunk being created by bcmx already existed in USL | Possible synchronization issue between the application, hardware, and sync layer | |
| OS USL: A Trunk being destroyed doesn't exist in USL | Possible synchronization issue between the application, hardware, and sync layer. | |
Table 11-52: System General Error Messages
| Component | Message | Cause |
| OS | USL: A Trunk being set doesn't exist in USL | Possible synchronization issue between the application, hardware, and sync layer. |
| OS USL: failed to | sync trunk table on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: Mcast entry not found on a join Possible synchronizat | tion issue between the application, hardware, and sync layer | |
| OS USL: Mcast entry not found on a leave Possible synchroniz | ation issue between the application, hardware, and sync layer | |
| OS USL: failed to | sync dvlan data on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: failed to | sync policy table on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: failed to | sync VLAN table on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS Invalid LAG id | x Possible synchronization issue between the | BCM driver and HAPI |
| OS Invalid uport cal | calculated from the BCM uport bcmx_l2_addr->lport = x | Uport not valid from BCM driver. |
| OS Invalid USP cal | calculated from the BCM uport\nbcmx_l2_addr->lport = x | USP not able to be calculated from the learn event for BCM driver. |
| OS Unable to insert route R/P Route ‘R’ with prefix ‘P’ could not be inserted in the hardware route table. A retry will be issued. | ||
| OS Unable to Insert host H Host ‘H’ could not be inserted in hardware host table. A retry will be issued. | ||
| OS USL: failed to | sync L3 Intf table on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: failed to | sync L3 Host table on unit=x Could not synchro | nize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS | USL: failed to sync L3 Route table on unit=x | Could not synchronize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
Table 11-52: System General Error Messages
| Component Message Cause | ||
| OS USL: failed to | sync initiator table on unit=x Could not synch | ronize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: failed to | sync terminator table onunit=x | Could not synchronize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
| OS USL: failed to | sync ip-multicast table onunit=x | Could not synchronize unit x due to a transport failure or API issue on remote unit.A synchronization retry will be issued |
O/S Support
Table 11-53: OSAPI Log Messages
| Component Message Cause | |
| OSAPI ftruncate failed – File resides on a read-only file system. | ftruncate is called to correctly set the file's size in the file system after a write. The file system is R/W so this msg indicates the file system may be corrupted. |
| OSAPI ftruncate failed – File is open for reading only. | ftruncate is called to correctly set the file's size in the file system after a write. The file is opened for R/W so this msg indicates the file system may be corrupted. |
| OSAPI ftruncate failed – File descriptor refers to a file on which this operation is impossible. | ftruncate is called to correctly set the file's size in the file system after a write. This msg indicates the file system may be corrupted. |
| OSAPI ftruncate failed – Returned an unknown code in errno. | ftruncate is called to correctly set the file's size in the file system after a write. This msg indicates the file system may be corrupted. |
| OSAPI ping: bad host! The address requested to ping can not be converted to an Internet address. | |
| OSAPI osapiTask Delete: Failed for (XX) error YYY The requested task can not be deleted because: the requested deletion is called from an ISR, the task is already deleted, or the task ID is invalid. | |
Table 11-53: OSAPI Log Messages (continued)
| Component Message Cause | ||
| OSAPI osapiCleanupIf: NetIPGet During the call to remove the interface fromthe route table, the attempt to get an ipv4interface address from the stack failed. | ||
| OSAPI osapiCleanupIf: NetMaskGet During the call to remove the interface fromthe route table ,the attempt to get the ipv4interface mask from the stack failed. | ||
| OSAPI osapiCleanupIf: NetIpDel During the call to remove the interface fromthe route table, the attempt to delete theprimary ipv4 address from the stack failed. | ||
| OSAPI osapiSemaTake failed The requested semaphore can not be takenbecause: the call is made from an ISR or thesemaphore ID is invalid. | ||
Chapter 12
Captive Portal Commands
The Captive Portal feature is a software implementation that blocks clients from accessing the network until user verification has been established. Verification can be configured to allow access for both guest and authenticated users. Authenticated users must be validated against a database of authorized Captive Portal users before access is granted.
The Authentication server supports both HTTP and HTTPS web connections. In addition, Captive Portal can be configured to use an optional HTTP port (in support of HTTP Proxy networks). If configured, this additional port is then used exclusively by Captive Portal. Note that this optional port is in addition to the standard HTTP port 80 which is currently being used for all other web traffic.
Capitve Portal Global Commands
The commands in this section are related to Captive Portal Global configurations.
captive-portal
Use this command to enter the captive portal configuration mode.
Format captive-portal
Mode Global Configuration mode
enable
Use this command to globally enable captive portal.
Default disabled
Format enable
Mode Captive Portal Configuration mode
no enable
Use this command to globally disable captive portal.
Default disabled
Format no enable
Mode Captive Portal Configuration mode
http port
Use this command to configure an additional HTTP port for captive portal to monitor. The valid range is from 0 to 65535.
Default 80
Format http port <0-65535>
Mode Captive Portal Configuration mode
no http port
Use this command to reset the HTTP port to the default number 80.
Format no http port
Mode Captive Portal Configuration mode
https port
Use this command to configure an additional HTTPS port for captive portal to monitor. The valid range is from 0 to 65535.
Default 443
Format https port <0-65535>
Mode Captive Portal Configuration mode
no https port
Use this command to reset the HTTPS port to the default HTTPS port 443.
Format no https port
Mode Captive Portal Configuration mode
authentication timeout
Use this command to configure the authentication timeout. If the user does not enter valid credentials within this time limit, the authentication page needs to be served again in order for the client to gain access to the network.
Default 300
Format authentication timeout <60-600>
Mode Captive Portal Configuration mode
no authentication timeout
Use this command to reset the authentication timeout to the default.
Default 300
Format no authentication timeout
Mode Captive Portal Configuration mode
show captive-portal
Use this command to display the status of the captive portal feature.
Format show captive-portal
Mode Privileged EXEC mode
| Term Definition | |
| Administrative Mode | The administrative mode is enabled or disabled. |
| Operational Status | The Operational status is enabled or disabled. |
| Disable Reason | If the operational status is disabled. This field shows the reason why the operational is disabled. |
| CP IP Address It is | the captive portal server IP address. |
Example
(switch)#show captive-portal Administrative Mode...... Disabled Operational Status...... Disabled Disable Reason...... Administrator Disabled CP IP Address...... 1.2.3.4
show captive-portal status
Use this command to report the status of all captive portal instances in the system.
Format show captive-portal status
Mode Privileged EXEC mode
| Term Definition | |
| Additional HTTP Port | The additional HTTP port for captive portal to monitor. Captive portal only monitors port 80 by default. |
| Additional HTTP Secure Port | The additional HTTPS port for captive portal to monitor. Captive portal only monitors port 443 by default. |
| Peer Switch Statistics Reporting Interval | |
| Authentication Timeout | The timeout for the authentication page to be served again. |
| Supported Captive Portals | The maximum number of captive portal instances supported by switch. It supports up to 10 instances. |
| Configured Captive Portals | The number of created captive portal instances. |
| Active Captive Portals | The number of active captive portal instances. |
| System Supported Users | The maximum number of user can be authenticated. |
| Local Supported Users | The maximum number of local user can be created. |
| Authenticated Users | The number of the authenticated users. |
Example
(switch)#show captive-portal status
Additional HTTP Port.... 0
Additional HTTP Secure Port.... 0
Peer Switch Statistics Reporting Interval..... 120
Authentication Timeout.... 300
Supported Captive Portals.... 10
Configured Captive Portals.... 1
Active Captive Portals.... 0
System Supported Users.... 1024
Local Supported Users.... 128
Authenticated Users.... 0
Captive Portal Configuration Commands
The commands in this section are related to captive portal configurations.
configuration (Captive Portal)
Use this command to enter the captive portal instance mode. The captive portal configuration identified by CP ID 1 is the default CP configuration. The system supports a total of ten CP configurations.
Format configuration <1-10>
Mode Captive Portal Configuration mode
no configuration
Use this command to to delete a CP configuration. The default configuration cannot be deleted.
Format no configuration <1-10>
Mode Captive Portal Configuration mode
enable (Instance)
Use this command to enable a captive portal configuration.
Default enable
Format enable
Mode Captive Portal Instance mode
no enable
Use this command to disable a configuration.
Default enable
Format no enable
Mode Captive Portal Instance mode
name
Use this command to configure the name for a captive portal configuration. The cp-name can be up to 32 alphanumeric characters in length.
Default Configuration 1 has the name "Default" by default. All other configurations have no name by default.
Format name
Mode Captive Portal Instance mode
no name
Use this command to remove a configuration name.
Format no name
Mode Captive Portal Instance mode
protocol
Use this command to configure the protocol mode for a captive portal configuration. The default protocol is http.
Default http
Format protocol { http | https }
Mode Captive Portal Instance mode
verification
Use this command to configure the verification mode for a captive portal configuration. User verification can be configured to allow access for guest users; users that do not have assigned user names and passwords. User verification can also be configured to allow access for authenticated users. Authenticated users are required to enter a valid user name and password that must first be validated against the local database or a RADIUS server. Network access is granted once user verification has been confirmed.
Default guest
Format verification { guest | local | radius }
Mode Captive Portal Instance mode
group
Use this command to configure a group ID for this captive portal configuration. If a group number is configured, the user entry (Local or RADIUS) must be configured with the ame name and the group to authenticate to this captive portal instance. The group ID must be xist first. You can use the command “user group <1-10>” to create a group ID. The default group ID is 1 for a captive portal configuration.
Default 1
Format group <1-10>
Mode Captive Portal Instance mode
no group
Use this command to reset the group number to the default.
Default 1
Format no group <1-10>
Mode Captive Portal Instance mode
redirect (Captive Portal)
Use this command to enable the redirect mode for a captive portal configuration. Use the “no” form of this command to disable redirect mode.
Default disable
Format redirect
Mode Captive Portal Instance mode
no redirect
Use this command to disable redirect mode.
Format no redirect
Mode Captive Portal Instance mode
redirect-url
Use this command to configure the redirect URL for a captive portal configuration. The url is the URL for redirection which can be up to 512 characters in length.
Format redirect-url url
Mode Captive Portal Instance mode
max-bandwidth-down
Use this command configures the maximum rate at which a client can receive data from the network. The rate is in bits per seconds. 0 indicates limit not enforced.
Default 0
Format max-bandwidth-down <0-536870911>
Mode Captive Portal Instance mode
no max-bandwidth-down
Use this command to reset the maximum rate to the default.
Format no max-bandwidth-down
Mode Captive Portal Instance mode
max-bandwidth-up
Use this command to configure the maximum rate at which a client can send data into the network. The rate is in bits per seconds. 0 indicates limit not enforced.
Default 0
Format max-bandwidth-up <0-536870911>
Mode Captive Portal Instance mode
no max-bandwidth-up
Use this command to reset the maximum rate to the default.
Format no max-bandwidth-up
Mode Captive Portal Instance mode
max-input-octets
Use this command to configure the maximum number of octets the user is allowed to transmit. After this limit has been reached the user will be disconnected. The number of octets is in bytes. 0 indicates limit not enforced.
Default 0
Format max-input-octets <0-4294967295>
Mode Captive Portal Instance mode
no max-input-octets
Use this command to reset the limit to the default.
Format no max-input-octets
Mode Captive Portal Instance mode
max-output-octets
Use this command to configure the maximum number of octets the user is allowed to receive. After this limit has been reached the user will be disconnected. The number of octets is in bytes. 0 indicates limit not enforced Use the “no”.
Default 0
Format max-output-octets <0-4294967295>
Mode Captive Portal Instance mode
no max-output-octets
Use this command to reset the limit to the default.
Format no max-output-octets
Mode Captive Portal Instance mode
max-total-octets
Use this command to configure the maximum number of octets the user is allowed to transfer, i.e., the sum of octets transmitted and received. After this limit has been reached the user will be disconnected. The number of total octets is in bytes. 0 indicates limit not enforced. Use the “no” form of this command to reset the limit to the default.
Default 0
Format max-total-octets <0-4294967295>
Mode Captive Portal Instance mode
no max-total-octets
Use this command to reset the limit to the default.
Default 0
Format max-total-octets <0-4294967295>
Mode Captive Portal Instance mode
session-timeout (Captive Portal)
Use this command to configure the session timeout for a captive portal configuration. After this limit has been reached, the user will be disconnected. Timeout is time in seconds. 0 indicates timeout not enforced.
Default 0
Format session-timeout <0-86400>
Mode Captive Portal Instance mode
no session-timeout
Use this command to reset the session timeout to the default.
Format session-timeout <0-86400>
Mode Captive Portal Instance mode
idle-timeout
Use this command to configure the idle timeout for a captive portal configuration. 0 indicates timeout not enforced. After an idle session has been reached this, the user will be disconnected.
Default 0
Format idle-timeout <0-900>
Mode Captive Portal Instance mode
no idle-timeout
Use this command to reset the idle timeout to the default.
Format no idle-timeout
Mode Captive Portal Instance mode
locale
This command is not intended to be a user command. The administrator must use the WEB UI to create and customize captive portal web content. This command is primarily used by the show running-config command and process as it provides the ability to save and restore configurations using a text based format.
Default 1
Format locale <1-5>
Mode Captive Portal Instance mode
no locale
This command is intended to delete a locale. The default locale cannot be deleted.
Format no locale <1-5>
Mode Captive Portal Instance mode
interface (Captive Portal)
Use this command to associate an interface with a captive portal configuration.
Format interface
Mode Captive Portal Instance Config mode
no interface
Use this command to remove an association with a captive portal configuration.
Format no interface
Mode Captive Portal Instance Config mode
block
Use this command to block all traffic for a captive portal configuration. The administrator can block access to a captive portal configuration. When an instance is blocked no client traffic is allowed through any interfaces associated with that captive portal configuration. Blocking a captive portal instance is a temporary command executed by the administrator and not saved in the configuration.
Default no block
Format block
Mode Captive Portal Instance mode
no block
Use this command to unblock traffic.
Format no block
Mode Captive Portal Instance mode
Captive Portal Status Commands
This section describes commands that return captive portal status.
show captive-portal configuration
Use this command to display the operational status of each captive portal configuration.
Format show captive-portal configuration <1-10>
Mode Privileged EXEC mode
| Term Definition | |
| CP ID The captive portal ID | |
| CP Name The captive portal instance name | |
| Operational Status | The operational status is enabled or disabled. |
| Disable Reason If the operational status is disabled, this field shows the reason. | |
| Blocked Status Blocked status shows if this captive portal instance block all traffic. | |
| Authenticated Users | The authenticated users by this captive portal instance. |
Example
(switch)#show captive-portal configuration 1
CP ID.... 1
CP Name.... cp1
Operational Status.... Disabled
Disable Reason.... Administrator Disabled
Blocked Status.... Not Blocked
Authenticated Users.... 0
show captive-portal configuration interface
Use this command to display information about all interfaces assigned to a captive portal configuration or about a specific interface assigned to a captive portal configuration. The <1-10> is the captive portal ID. If you do not specify an interface number, all the interfaces assigned to the captive portal configuration will be displayed.
Format show captive-portal configuration <1-10> interface [
Mode Privileged EXEC mode
| Term Definition | |
| CP ID The captive portal ID. | |
| CP Name The captive portal name. | |
| Interface The interface associated with the CP ID | |
| Interface Description | The interface description |
| Operational Status | The operational status is enabled or disabled. |
| Disable Reason The | reason if the operational status is disabled. |
| Block Status It shows this captive portal instance block all traffic or not. | |
If the interface is specified. The following term will be displayed.
| Term Definition | |
| Authenticated users | The number of authenticated users associated with the CP ID. |
Example
| (Switch)#show captive-portal configuration 1 interface | |||
| CP ID......1 | |||
| CP Name......cp1 | |||
| Operational Status | Block Status | ||
| Interface | Interface Description | ||
| ---- | ---- | ---- | ----1/0/1 |
| Unit:1Slot:0Port:1 Disabled | Blocked | ||
| (Switch)#show captive-portal configuration 1 interface 1/0/1 | |
| CP ID...... | 1 |
| CP Name...... | cp1 |
| Interface...... | 1/0/1 |
| Interface Description...... | Unit: 1 Slot: 0 Port: 1 Gigab |
| Operational Status...... | Disabled |
| Disable Reason...... | Interface Not Attached |
| Block Status...... | Not Blocked |
| Authenticated Users...... | 0 |
show captive-portal configuration status
Use this command to display information about all configured captive portal configurations or about a specific captive portal configuration. The <1-10> is captive portal ID. If <1-10> is not entered, all the configurations are displayed.
Format show captive-portal configuration [ <1-10> ] status
Mode Privileged EXEC mode
| Term Definition | |
| CP ID The captive portal instance ID | |
| CP Name The captive portal instance name | |
| Mode The operational mode is enabled or disabled. | |
| Protocol Mode The protocol mode is https or http. | |
| Verification Mode | The user verification mode has three modes: guest, local and radius. The default is guest mode. |
If the interface is specified, the following terms are displayed.
| Term Definition | |
| Group Name The name of the group associated with this captive portal instance. | |
| Redirect URL Mode The redirect mode for this captive portal instance | |
| Redirect URL The redirect URL is up to 512 characters. | |
| Session Timeout Logout once session timeout is reached (seconds). | |
| Idle Timeout Logout once idle timeout is reached (seconds). | |
| Max Bandwidth Up Maximum client transmit rate (b/s). Limits the bandwidth at which the client can send data into the network. | |
| Max Bandwidth Down Maximum client receive rate (b/s). Limits the bandwidth at which the client can receive data from the network. | |
| Max Input Octets Maximum number of octets the user is allowed to transmit. After this limit has been reached the user will be disconnected. | |
| Max Output Octets Maximum number of octets the user is allowed to receive. After this limit has been reached the user will be disconnected. | |
| Max Total Octets Maximum number of octets the user is allowed to transfer (sumof octets transmitted and received). After this limit has been reached the user will be disconnected. | |
Example
| (switch)#show captive-portal configuration status | ||||
| CP ID | CP Name | Mode | Protocol | Verification |
| 1 | cp1 | Enable | https | Guest |
| 2 | cp2 | Enable | http | Local |
| 3 | cp3 | Disable | https | Guest |
| (switch)#show captive-portal configuration 1 status | ||||
| CP ID...... | 1 | |||
| CP Name...... | cp1 | |||
| Mode...... | Enabled | |||
| Protocol Mode...... | https | |||
| Verification Mode...... | Guest | |||
| Group Name...... | group123 | |||
| Redirect URL Mode...... | Enabled | |||
| Redirect URL...... | www.cnn.com | |||
| Session Timeout (seconds)...... | 86400 | |||
| Idle Timeout (seconds)...... | 600 | |||
| Max Bandwidth Up (bytes/sec)...... | 0 | |||
| Max Bandwidth Down (bytes/sec)...... | 0 | |||
| Max Input Octets (bytes)...... | 0 | |||
| Max Output Octets (bytes)...... | 0 | |||
| Max Total Octets (bytes)...... | 0 | |||
show captive-portal configuration locales
Use this command to display locales associated with a specific captive portal configuration. <1-10> is captive port ID.
Format show captive-portal configuration <1-10> locales
Mode Privileged EXEC mode
Example
(switch)#show captive-portal configuration 1 locales Locale Code
En
show captive-portal trapflags
Use this command to display which captive portal traps are enabled.
Format show captive-portal trapflags
Mode Privileged EXEC mode
Example
(switch)#show captive-portal trapflags Client Authentication Failure Traps...... Disable Client Connection Traps...... Disable Client Database Full Traps...... Disable Client Disconnection Traps...... Disable
Captive Portal Client Connection Commands
This section describes captive portal client connection commands.
show captive-portal client status
Use this command to display client connection details or a connection summary for connected captive portal users. macaddr is Client MAC address. If no macaddr is entered, all the client status will be displayed.
Format show captive-portal client [ macaddr ] status
Mode Privileged EXEC mode
| Term Definition | |
| Client MAC Address | The MAC address of the authenticated user |
| Client IP Address The IP address of the authenticated user | |
| Protocol The protocol the user is using to access the network. | |
| Verification The verification mode for this client. | |
| Session Time The current session time since the client is authenticated. | |
If the macaddr is specified, the following terms are displayed.
| Term Definition | |
| CP ID The captive portal ID associated with the client | |
| CP Name The captive portal name associated with the client | |
| Interface The interface on which the client authenticated. | |
| Interface Description | The interface description |
| User Name The name of the client who is authenticated. | |
Example
(switch)#show captive-portal client status
| Client MAC Address | Client IP Address | Protocol | Verification | Session Time |
| 0002.BC00.1290 | 10.254.96.47 | https | Local | 0d:00:01:20 |
| 0002.BC00.1291 | 10.254.96.48 | https | Local | 0d:00:05:20 |
| 0002.BC00.1292 | 10.254.96.49 | https | Radius | 0d:00:00:20 |
(switch)#show captive-portal client 0002.BC00.1290 status
Client MAC Address.... 0002.BC00.1290
Client IP Address.... 10.254.96.47
Protocol Mode.... https
Verification Mode.... Local
CP ID.... 1
CP Name.... cp1
Interface.... 1/0/1
Interface Description.... Unit: 1 Slot: 0 Port: 1 Gigabit - Level
User Name.....user123
Session Time.... 0d:00:00:13
show captive-portal client statistics
Use this command to display the statistics for a specific captive portal client. The macaddr is client MAC address.
Format show captive-portal client macaddr statistics
Mode Privileged EXEC mode
| Term Definition | |
| Client MAC address | The MAC address of the authenticated client |
| Bytes Received The | number of bytes received from the client |
| Bytes Transmitted | The number of bytes transmitted to the client |
| Packets Received The | the number of packets received from the client |
| Packets Transmitted | The number of packets transmitted from the client |
Example
(switch)#show captive-portal client 0102.0304.0506 statistics Client MAC Address.... 0002.bc00.1290 Bytes Received.... 0 Bytes Transmitted.... 0 Packets Received.... 0 Packets Transmitted.... 0
show captive-portal interface client status
Use this command to display information about clients authenticated on all interfaces or a specific interface
Format show captive-portal interface [
Mode Privileged EXEC mode
| Term Definition | |
| Client Intf Interface | on which the clients are authenticated. |
| Client Intf Descripiton | The interface description |
| MAC Address The MAC address of the authenticated user. | |
| IP Address The IP address of the authenticated user. | |
If the interface is specified, the following terms are displayed.
| Term Definition | |
| CP ID The ID of the captive portal associated with the client | |
| CP Name The name of the captive portal associated with the client | |
| Protocol The protocol the client is using | |
| Term | Definition |
| Verification The user verification mode | |
Example
| (switch)#show captive-portal interface client status | |||
| Client | Client | ||
| Intf | Intf Description | MAC Address | IP Address |
| ---- | ---- | ---- | - |
| 1/0/1 | Unit: 1 Slot: 0 Port: 1 Gigabit | 0002.BC00.1290 | 10.254.96.47 |
| 1/0/2 | Unit: 1 Slot: 0 Port: 2 Gigabit | 0002.BC00.1292 | 10.254.96.49 |
| 1/0/3 | Unit: 1 Slot: 0 Port: 3 Gigabit | 0002.BC00.1293 | 10.254.96.50 |
| (switch)#show captive-portal interface 1/0/1 client status | |||||
| Interface...... 1/0/1 | |||||
| Interface Description...... Unit: 1 Slot: 0 Port: 1 Gigabit | |||||
| Client Client | |||||
| MAC Address | IP Address | CP ID | CP Name | Protocol | Verification |
| ---- | ---- | ---- | ---- | ---- | ---- |
| -- | ---- | ||||
| 0002.BC00.1290 | 10.254.96.47 | 1 | cp1 | http | local |
| 0002.BC00.1291 | 10.254.96.48 | 2 | cp2 | http | local |
show captive-portal configuration client status
Use this command to display the clients authenticated to all captive portal configurations or a to specific configuration. <1-10> is the captive portal ID.
Format show captive-portal configuration [ <1-10> ] client status Mode Privileged EXEC mode
| Term | Definition |
| CP ID | The captive portal ID |
| CP Name | The captive portal name |
| Client MAC Address | The MAC address of the client associated with the captive portal instance. |
| Client IP Address | The IP address of the client associated with the captive portal instance |
| Interface | The interface on which the client is authenticated. |
If the CP ID is specified, the following terms are displayed.
| Term Definition | |
| Interface Description | The description of the interface |
Example
| (switch)#show captive-portal configuration client status | ||||
| CP ID | CP Name | Client MAC Address | Client IP Address | Interface |
| 1 | cp1 | 0002.BC00.1290 | 10.254.96.47 | 1/0/1 |
| 2 | cp2 | 0002.BC00.1292 | 10.254.96.49 | 1/0/3 |
| 3 | cp3 | 0002.BC00.1293 | 10.254.96.50 | 1/0/4 |
| (switch)#show captive-portal configuration 1 client status | |||
| CP ID......1 | |||
| CP Name......cp1 | |||
| Client | Client | ||
| MAC Address | IP Address | Interface | Interface Description |
| 0002.BC00.1290 | 10.254.96.47 | 1/0/1 | Unit:1 Slot:0 Port:1 Gigabit |
| 0002.BC00.1291 | 10.254.96.48 | 1/0/2 | Unit:1 Slot:0 Port:2 Gigabit |
captive-portal client deauthenticate
Use this command to deauthenticate a specific captive portal client. The macaddr is the Client MAC address.
Format captive-portal client deauthenticate macaddr
Mode Privileged EXEC mode
Captive Portal Interface Commands
The following section describes captive portal interface commands.
show captive-portal interface configuration status
Use this command to display the interface to configuration assignments for all captive portal configurations or for a specific configuration. <1-10> is the captive portal ID.
Format show captive-portal interface configuration [ <1-10>] status
Mode Privileged EXEC mode
| Term Definition | |
| CP ID The captive portal ID | |
| CP Name The captive portal name | |
| Interface The interface associated with the CP ID. | |
| Interface Description | The description of the interface |
| Type The type of the interface | |
Example
| (switch)#show captive-portal interface configuration status | ||||
| CP ID | CP Name | Interface | Interface Description | Type |
| 1 | Default | 1/0/1 | Unit: 1 Slot: 0 Port: 1 Gigabit | Physical |
| (switch)#show captive-portal interface configuration 1 status | ||
| CP ID......1 | ||
| CP Name......cpl | ||
| Interface | Interface Description | Type |
| 1/0/1 | Unit: 1 Slot: 0 Port: 1 Gigabit | Physical |
Captive Portal Local User Commands
The following section describes captive portal local user commands.
user password
Use this command to create a local user or change the password for an existing user. The user-id is user ID in the range of 1-128. The password is the user passord in the range of 8-64 characters. You can also enter encrypted password using the parameter encrypted.
Format user user-id password { password | encrypted enc-password }
Mode Captive Portal Configuration mode
no user
Use this command to delete a user from the local user database. If the user has an existing session, it is disconnected.
Format no user user-id <1-128>
Mode Captive Portal Configuration mode
user name
Use this command to modify the user name for a local captive portal user. <1-128> is the user ID and the name is the user name in the range of 1-32 characters. The local user must be exist before execute this command. You can create the local user using user password first.
Format user <1-128> name name
Mode Captive Portal Configuration mode
user group
Use this command to associate a group with a captive portal user. A user must be associated with at least one group so the last group cannot be dis-associated. <1-128> is the user ID and <1-10> is the group ID.
Default 1
Format user <1-128> group <1-10>
Mode Captive Portal Configuration mode
no user group
Use this command to dis-associate a group and user.
Format no user <1-128> group <1-10>
Mode Captive Portal Configuration mode
user session-timeout
Use this command to set the session timeout value for a captive portal user. Use the “no” form of this command to reset the session timeout to the default. The range of session timeout is 0-86400.0 indicates use global configuration.
t
Defaul 0
Format user <1-128> session-timeout timeout
Mode Captive Portal Configuration mode
no user session-timeout
Use this command to reset the session timeout to the default.
Format no user <1-128> session-timeout
Mode Captive Portal Configuration mode
user idle-timeout
Use this command to set the session idle timeout value for a captive portal user. <1-128> is the user ID. The range of idle timeout is 0-900 seconds. 0 indicates use global configuration.
Default 0
Format user <1-128> idle-timeout timeout
Mode Captive Portal Configuration mode
no user idle-timeout
Use this command to reset the idle timeout to the default value.
Format no user <1-128> idle-timeout timeout
Mode Captive Portal Configuration mode
user max-bandwidth-down
Use this command to configure the bandwidth at which the client can receive data from the network. <1-128> is the user ID. The range of bps is <0-536870911> bps. 0 indicates use global configuration.
Default 0
Format user <1-128> max-bandwidth-down bps
Mode Captive Portal Configuration mode
no user max-bandwidth-down
Use this command to reset the limit to the default.
Format no user <1-128> max-bandwidth-down
Mode Captive Portal Configuration mode
user max-bandwidth-up
Use this command to configure the bandwidth at which the client can send data into the Network. <1-128> is the user ID. The range of bps is <0-536870911> bps. 0 indicates use global configuration.
Default 0
Format user <1-128> max-bandwidth-up bps
Mode Captive Portal Configuration mode
no user max-bandwidth-up
Use this command to reset the limit to the default.
Format no user <1-128> max-bandwidth-up
Mode Captive Portal Configuration mode
user max-input-octets
Use this command to limit the number of octets the user is allowed to transmit. After this limit has been reached the user will be disconnected. <1-128> is the user ID. The range of octets is 0-4294967295. 0 indicates to use the global limit.
Default 0
Format user <1-128> max-input-octets octets
Mode Captive Portal Configuration mode
no user max-input-octets
Use this command to reset the limit to the default.
Format no user <1-128> max-input-octets
Mode Captive Portal Configuration mode
user max-output-octets
Use this command to limit the number of octets the user is allowed to receive. After this limit has been reached the user will be disconnected. The <1-128> is the user ID. The range of the octets is 0 - 4294967295. 0 indicates to use the global limit.
Default 0
Format user <1-128> max-output-octets octets
Mode Captive Portal Configuration mode
no user max-output-octets
Use this command to reset the limit to the default.
Default 0
Format no user <1-128> max-output-octets
Mode Captive Portal Configuration mode
user max-total-octets
Use this command to limit the number of bytes the user is allowed to transmit and receive. The maximum number of octets is the sum of octets transmitted and received. After this limit has been reached the user will be disconnected. <1-128> is the user ID. The range of octets is 0-4294967295. 0 indicates to use the global limit .Use the “no” form of this command to reset the limit to the default.
Default 0
Format user <1-128> max-total-octets octets
Mode Captive Portal Configuration mode
no user max-total-octets
Use this command to reset the limit to the default.
Format no user <1-128> max-total-octets
Mode Captive Portal Configuration mode
show captive-portal user
Use this command to display all configured users or a specific user in the captive portal local user database.
Format show captive-portal user [<1-128>]
Mode Privileged EXEC mode
| Term Definition | |
| User ID The user ID | |
| User Name The user name | |
| Session Timeout | Logout once session timeout is reached (seconds). If the value is 0 then use the value configured for the captive portal. |
| Idle Timeout | Logout once idle timeout is reached (seconds). If the attribute is 0 then use the value configured for the captive portal. |
| Group ID The group | ID associated with the user |
| Group Name The group name |
If the user ID is specified, the following terms are displayed.
| Term Definition | |
| Password Configured | If the password is configured. |
| Max Bandwidth Up (bytes/sec) | Maximum client transmit rate(b/s). Limits the bandwidth at which the client can send data into the network. If the value is 0 then use the value configured for the captive portal. |
| Max Bandwidth Down (bytes/sec) | Maximum client receive rate (b/s). Limits the bandwidth at which the client can receive data from the network. If the value is 0 or then use the value configured for the captive portal. |
| Max Input Octets (bytes) | Maximum number of octets the user is allowed to transmit. After this limit has been reached the user will be disconnected. If the value is 0 then use the value configured for the captive portal. |
| Max Output Octets (bytes) | Maximum number of octets the user is allowed to receive. After this limit has been reached the user will be disconnected. If the attribute is 0 then use the value configured for the captive portal. |
| Max Total Octets (bytes) | Maximum number of octets the user is allowed to transfer (sum of octets transmitted and received). After this limit has been reached the user will be disconnected. If the value is 0 then use the value configured for the captive portal. |
Example
(switch)#show captive-portal user
| User ID | User Name | Session Timeout | Idle Timeout | Group ID | Group Name |
| 1 | user123 | 10 | 13 | 1 | Default |
| 2 | user234 | 0 | 0 | 1 | Default |
(switch)#show captive-portal user 1
| User ID.... | 1 | |
| User Name.... | user123 | |
| Password Configured.... | Yes | |
| Session Timeout.... | 0 | |
| Idle Timeout.... | 0 | |
| Max Bandwidth Up (bytes/sec).... | 0 | |
| Max Bandwidth Down (bytes/sec).... | 0 | |
| Max Input Octets (bytes).... | 0 | |
| Max Output Octets (bytes).... | 0 | |
| Max Total Octets (bytes).... | 0 | |
| Group ID | Group Name | |
| 1 | Default | |
| 2 | group2 | |
clear captive-portal users
Use this command to delete all captive portal user entries.
Format clear captive-portal users
Mode Privileged EXEC mode
Captive Portal User Group Commands
The following section describes captive portal user group commands.
user group (Create)
Use this command to create a user group. User group 1 is created by default and cannot be deleted.
Default 1
Format user group <1-10>
Mode Captive Portal Configuration mode
no user group
Use this command to delete a user group. The default user group (1) cannot be deleted.
Format user group <1-10>
Mode Captive Portal Configuration mode
user group name
Use this command to configure a group name. <1-10> is the user group ID. The name can be a string up to 32 characters.
Format user group <1-10> name name
Mode Captive Portal Configuration mode
user group rename
Use this command to change a group's ID to a different group ID.
Format user group group-id rename new-group-id
Mode Captive Portal Configuration mode
Chapter 13
List of Commands
{deny | permit} (IP ACL) 8-40
{deny | permit} (IPv6) 8-45
{deny | permit} (MAC ACL) 8-34
1583compatibility 4-41
aaa authentication dot1x 10-39
aaa authentication login 10-37
aaa authentication enable 10-38
access-list 8-37
acl-trapflags 8-42
addport 3-92
area default-cost (OSPF) 4-41
area default-cost (OSPFv3) 7-38
area nssa (OSPF) 4-42
area nssa (OSPFv3) 7-38
area nssa default-info-originate (OSPF) 4-42
area nssa default-info-originate (OSPFv3) 7-39
area nssa no-redistribute (OSPF) 4-43
area nssa no-redistribute (OSPFv3) 7-39
area nssa no-summary (OSPF) 4-43
area nssa no-summary (OSPFv3) 7-40
area nssa translator-role (OSPF) 4-44
area nssa translator-role (OSPFv3) 7-40
area nssa translator-stab-intv (OSPF) 4-44
area nssa translator-stab-intv (OSPFv3) 7-40
area range (OSPF) 4-45
area range (OSPFv3) 7-41
area stub (OSPF) 4-45
area stub (OSPFv3) 7-41
area stub no-summary (OSPF) 4-46
area stub no-summary (OSPFv3) 7-42
area virtual-link (OSPF) 4-46
area virtual-link (OSPFv3) 7-42
area virtual-link authentication 4-47
area virtual-link dead-interval (OSPF) 4-47
area virtual-link dead-interval (OSPFv3) 7-43
area virtual-link hello-interval (OSPF) 4-48
area virtual-link hello-interval (OSPFv3) 7-43
area virtual-link retransmit-interval (OSPF) 4-48
area virtual-link retransmit-interval (OSPFv3) 7-44
area virtual-link transmit-delay (OSPF) 4-49
area virtual-link transmit-delay (OSPFv3) 7-44
arp 4-2
arp access-list 3-135
arp cachesize 4-3
arp dynamiccrenew 4-3
arp purge 4-4
arp resptime 4-4
arp retries 4-4
arp timeout 4-5
assign-queue 8-20
authentication timeout 12-3
authorization network radius 10-52
auto-cost (OSPF) 4-49
auto-cost (OSPFv3) 7-45
auto-negotiate 3-3
auto-negotiate all 3-4
auto-summary 4-83
auto-voip 8-49
auto-voip all 8-48
bandwidth 4-50
block 12-14
boot autoinstall auto-save 9-3
boot autoinstall retry-count 9-4
boot autoinstall start 9-3
boot autoinstall stop 9-3
boot system 9-5
bootfile 9-45
bootpdhcprelay cidoptmode 4-34
bootpdhcprelay maxhopcount 4-34
bootpdhcprelay minwaittime 4-35
bridge aging-time 3-204
cablestatus 9-83
capability opaque 4-51
captive-portal client deauthenticate 12-23
captive-portal 12-1
capture wrap 9-62
class 8-21
class-map 8-10
class-map rename 8-11
classofservice dot1p-mapping 8-2
classofservice ip-dscp-mapping 8-2
classofservice trust 8-3
clear arp-cache 4-5
clear arp-switch 4-6
clear captive-portal users 12-31
clear config 9-27
clear counters 9-27
clear dot1x statistics 3-64
clear host 9-59
clear igmpsnooping 9-28
clear ip arp inspection statistics ....3-138
clear ip dhcp binding 9-51
clear ip dhcp conflict 9-51
clear ip dhcp server statistics 9-51
clear ip dhcp snooping binding 3-129
clear ip dhcp snooping statistics 3-129
clear ip ospf 4-51
clear ip ospf configuration 4-51
clear ip ospf counters 4-51
clear ip ospf neighbor 4-52
clear ip ospf neighbor interface 4-52
clear ip ospf redistribution 4-52
clear ip route all 4-13
clear ipv6 dhcp 7-75
clear ipv6 neighbors 7-24
clear ipv6 ospf 7-46
clear ipv6 ospf configuration 7-46
clear ipv6 ospf counters 7-46
clear ipv6 ospf neighbor 7-46
clear ipv6 ospf neighbor interface 7-47
clear ipv6 ospf redistribution 7-47
clear ipv6 statistics 7-32
clear isdp counters 3-208
clear isdp table 3-208
clear lldp remote-data 3-175
clear lldp statistics 3-174
clear logging buffered 9-27
clear mac-addr-table 9-27
clear pass 9-28
clear port-channel 9-28
clear radius statistics 3-64
clear traplog 9-28
clear vlan 9-28
client-identifier 9-41
client-name 9-42
clock timezone 9-37
configuration 10-8
configuration (Captive Portal)....12-5
conform-color 8-21
copy 9-32
copy (pre-login banner) 10-73
cos-queue min-bandwidth 8-4
cos-queue strict 8-4
crypto certificate generate 10-19
crypto key generate dsa 10-20
crypto key generate rsa 10-20
debug arp 9-63
debug auto-voip 9-63
debug clear 9-64
debug console 9-64
debug dot1x packet 9-65
debug igmpsnooping packet 9-65
debug igmpsnooping packet receive 9-67
debug igmpsnooping packet transmit 9-66
debug ip acl 9-68
debug ip dvmrp packet 9-68
debug ip igmp packet 9-69
debug ip mcache packet 9-69
debug ip pimdm packet 9-70
debug ip pimsm packet 9-71
debug ip vrrp 9-71
debug ipv6 mcache packet 9-72
debug ipv6 mld packet 9-72
debug ipv6 pimdm packet 9-73
debug ipv6 pimsm packet 9-73
debug isdp packet 3-212
debug lacp packet 9-74
debug mldsnooping packet 9-74
debug ospf packet 9-75
debug ospfv3 packet 9-77
debug ping packet 9-78
debug rip packet 9-79
debug sflow packet 9-80
debug spanning-tree bpdu 9-80
debug spanning-tree bpdu receive 9-81
debug spanning-tree bpdu transmit 9-82
default-information originate (OSPF) 4-53
default-information originate (OSPFv3) 7-47
default-information originate (RIP) 4-84
default-metric (OSPF) 4-53
default-metric (OSPFv3) 7-48
default-metric (RIP) 4-84
default-router 9-42
delete 9-4
deleteport (Global Config) 3-92
deleteport (Interface Config) 3-92
description 3-5
diffserv 8-9
disconnect 10-28
distance ospf (OSPF) 4-54
distance ospf (OSPFv3) 7-48
distance rip 4-84
distribute-list out (OSPF) 4-54
distribute-list out (RIP) 4-85
dns-server 9-43
dns-server (IPv6) 7-72
domain-name 9-46
domain-name (IPv6) 7-71
dos-control all 3-193
dos-control firstfrag 3-194
dos-control icmp 3-196
dos-control icmpfrag 3-202
dos-control icmpv4 3-201
dos-control icmpv6 3-202
dos-control l4port 3-195
dos-control sipdip 3-193
dos-control smacdmac 3-196
dos-control tcpfinurgpsh 3-200
dos-control tcpflag 3-195
dos-control tcpflagseq 3-198
dos-control tcpfrag 3-194
dos-control tcpoffset 3-199
dos-control tcpport 3-197
dos-control tcpsyn 3-199
dos-control tcpsynfin 3-200
dos-control udpport 3-197
dot1x guest-vlan 3-65
dot1x initialize 3-65
dot1x max-req 3-66
dot1x max-users 3-66
dot1x port-control 3-67
dot1x port-control all 3-67
dot1x re-authenticate 3-68
dot1x re-authentication 3-68
dot1x system-auth-control 3-69
dot1x timeout 3-69
dot1x unauthenticated-vlan 3-70
dot1x user 3-71
drop 8-20
dvlan-tunnel ethertype 3-46
enable (OSPF) 4-39
enable (OSPFv3) 7-49
enable (Privileged EXEC access) 10-4
enable (RIP) 4-82
enable authentication ....10-10
enable password 9-29
enable 12-1
enable (Instance)....12-6
encapsulation 4-13
exit-overflow-interval (OSPF) 4-55
exit-overflow-interval (OSPFv3) 7-49
external-lsdb-limit (OSPF) 4-55
external-lsdb-limit (OSPFv3) 7-50
ezconfig 10-2
filedescr 9-5
group 12-8
hardware-address 9-43
hashing-mode 3-107
host 9-44
hostroutesaccept 4-87
http port 12-2
https port 12-2
idle-timeout 12-12
interface 3-2
interface (Captive Portal)....12-13
interface lag 3-3
interface loopback 7-8
interface range 3-3
interface tunnel 7-6
interface vlan ....3-3
ip access-group 8-41
ip access-list 8-39
ip access-list rename 8-40
ip address 4-9
ip arp inspection filter 3-134
ip arp inspection limit 3-133
ip arp inspection trust ....3-133
ip arp inspection validate ....3-132
ip arp inspection vlan ....3-131
ip arp inspection vlan logging 3-132
ip dhcp bootp automatic 9-50
ip dhcp conflict logging 9-50
ip dhcp excluded-address 9-48
ip dhcp ping packets 9-49
ip dhcp pool 9-41
ip dhcp snooping 3-120
ip dhcp snooping binding 3-122
ip dhcp snooping database 3-121
ip dhcp snooping database write-delay 3-122
ip dhcp snooping limit 3-123
ip dhcp snooping log-invalid 3-124
ip dhcp snooping trust 3-124
ip dhcp snooping verify mac-address 3-121
ip dhcp snooping vlan 3-120
ip domain list 9-56
ip domain lookup 9-55
ip domain name 9-56
ip domain retry 9-58
ip domain timeout 9-59
ip dvmrp 5-8
ip dvmrp metric 5-7
ip dvmrp trapflags 5-8
ip dvmrp(Global Config) 5-7
ip helper-address 4-37
ip helper-address (Global Config) 4-36
ip helper-address discard 4-38
ip host 9-57
ip http authentication ....10-23
ip http java 10-22
ip http secure-port ....10-26
ip http secure-protocol 10-27
ip http secure-server ....10-21
ip http secure-session hard-timeout ....10-25
ip http secure-session maxsessions 10-24
ip http secure-session soft-timeout ....10-25
ip http server ....10-21
ip http session hard-timeout 10-22
ip http session max sessions 10-23
ip http session soft-timeout 10-24
ip https authentication 10-26
ip icmp echo-reply 4-92
ip icmp error-interval 4-92
ip igmp 5-26
ip igmp last-member-query-count 5-27
ip igmp last-member-query-interval 5-28
ip igmp query-interval 5-28
ip igmp query-max-response-time 5-29
ip igmp robustness 5-29
ip igmp startup-query-count 5-30
ip igmp startup-query-interval 5-30
ip igmp version 5-27
ip igmp-proxy 5-35
ip igmp-proxy reset-status ....5-36
ip igmp-proxy unsolicit-rprt-interval 5-35
ip igmpsnooping unknown-multicast 3-145
ip irdp 4-20
ip irdp address ....4-21
ip irdp holdtime ....4-21
ip irdp maxadvertinterval ....4-22
ip irdp minadvertinterval 4-22
ip irdp preference ....4-23
ip mcast boundary 5-2
ip mtu 4-12
ip multicast 5-2
ip multicast ttl-threshold 5-3
ip name server 9-57
ip netdirbcast 4-11
ip ospf area 4-40
ip ospf authentication 4-56
ip ospf cost 4-56
ip ospf dead-interval 4-57
ip ospf hello-interval 4-57
ip ospf mtu-ignore 4-60
ip ospf network 4-58
ip ospf priority 4-58
ip ospf retransmit-interval 4-59
ip ospf transmit-delay 4-59
ip pimdm (Global Config) 5-12
ip pimdm (Interface Config) 5-13
ip pimdm hello-interval 5-13
ip pimsm bsr-border 5-17
ip pimsm bsr-candidate 5-17
ip pimsm dr-priority 5-18
ip pimsm hello-interval 5-19
ip pimsm join-prune-interval 5-19
ip pimsm register-threshold 5-20
ip pimsm rp-address 5-20
ip pimsm rp-candidate 5-21
ip pimsm spt-threshold 5-21
ip pimsm ssm 5-22
ip pimsm(Global Config) 5-16
ip pimsm(Interface Config) 5-16
ip pim-trapflags 5-22
ip proxy-arp 4-2
ip redirects 4-91
ip rip 4-83
ip rip authentication 4-85
ip rip receive version 4-86
ip rip send version 4-86
ip route 4-9
ip route default 4-10
ip route distance 4-11
ip routing 4-8
ip ssh 10-16
ip ssh protocol 10-17
ip ssh server enable 10-17
ip telnet server enable 10-11
ip unreachable 4-91
ip verify binding 3-123
ip verify source 3-125
ip vrrp (Global Config) 4-25
ip vrrp (Interface Config) 4-25
ip vrrp authentication 4-27
ip vrrp ip 4-26
ip vrrp mode 4-26
ip vrrp preempt 4-27
ip vrrp priority 4-28
ip vrrp timers advertise 4-29
ip vrrp track interface 4-29
ip vrrp track ip route 4-30
ipv6 access-list 8-44
ipv6 access-list rename 8-45
ipv6 address 7-12
ipv6 dhcp pool 7-71
ipv6 dhcp relay destination 7-69
ipv6 dhcp relay-agent-info-opt 7-70
ipv6 dhcp relay-agent-info-remote-id-subopt 7-70
ipv6 dhcp server 7-69
ipv6 enable 7-11
ipv6 forwarding 7-10
ipv6 hop-limit 7-10
ipv6 host 9-58
ipv6 icmp error-interval 7-19
ipv6 mld last-member-query-count 6-19
ipv6 mld last-member-query-interval 6-18
ipv6 mld query-interval 6-17
ipv6 mld query-max-response-time 6-18
ipv6 mld router 6-16
ipv6 mld-proxy 6-23
ipv6 mld-proxy reset-status 6-24
ipv6 mld-proxy unsolicit-rprt-interval 6-24
ipv6 mtu 7-14
ipv6 nd dad attempts 7-15
ipv6 nd managed-config-flag 7-15
ipv6 nd ns-interval 7-16
ipv6 nd other-config-flag 7-16
ipv6 nd ra-interval 7-17
ipv6 nd ra-lifetime 7-17
ipv6 nd reachable-time 7-18
ipv6 nd suppress-ra 7-18
ipv6 ospf 7-33
ipv6 ospf areaid 7-33
ipv6 ospf cost 7-34
ipv6 ospf dead-interval 7-34
ipv6 ospf hello-interval 7-35
ipv6 ospf mtu-ignore 7-35
ipv6 ospf network 7-36
ipv6 ospf priority 7-36
ipv6 ospf retransmit-interval 7-37
ipv6 ospf transmit-delay 7-37
ipv6 pimdm 6-4
ipv6 pimdm hello-interval 6-5
ipv6 pimsm bsr-border 6-8
ipv6 pimsm bsr-candidate 6-8
ipv6 pimsm hello-interval 6-9
ipv6 pimsm join-prune-interval 6-10
ipv6 pimsm register-threshold 6-10
ipv6 pimsm rp-address 6-11
ipv6 pimsm rp-candidate 6-12
ipv6 pimsm spt-threshold 6-12
ipv6 pimsm ssm 6-13
ipv6 route 7-13
ipv6 route distance 7-14
ipv6 router ospf 7-38
ipv6 traffic-filter 8-46
ipv6 unicast-routing 7-11
ipv6 unreachables 7-19
isdp advertise-v2 3-207
isdp enable 3-208
isdp holdtime 3-207
isdp run 3-206
isdp timer 3-207
key 10-69
lacp actor admin 3-94
lacp actor admin key 3-94
lacp actor admin state individual 3-95
lacp actor admin state longtimeout 3-95
lacp actor admin state passive 3-96
lacp actor port priority 3-97
lacp actor system priority 3-97
lacp admin key 3-93
lacp collector max-delay 3-93
lacp partner admin key 3-98
lacp partner admin state individual 3-98
lacp partner admin state longtimeout 3-99
lacp partner admin state passive 3-100
lacp partner port id 3-100
lacp partner port priority 3-101
lacp partner system id 3-102
lacp partner system priority 3-102
lease 9-44
line 10-8
lldp med 3-181
lldp med all 3-183
lldp med confignotification ....3-182
lldp med confignotification all 3-183
lldp med faststartrepeatcount 3-184
lldp med transmit-tlv 3-182
lldp med transmit-tlv all 3-184
lldp notification 3-173
lldp notification-interval 3-174
lldp receive 3-171
lldp timers 3-171
lldp transmit 3-171
lldp transmit-mgmt 3-173
lldp transmit-tlv 3-172
locale 12-13
logging buffered 9-18
logging buffered wrap 9-19
logging cli-command 9-19
logging console 9-20
logging host 9-20
logging host remove 9-21
logging persistent 9-24
logging syslog 9-21
login authentication 10-9
logout 9-29
mac access-group 8-35
mac access-list extended 8-33
mac access-list extended rename 8-33
macfilter 3-115
macfilter adddest 3-116
macfilter adddest all 3-117
macfilter addsrc 3-118
macfilter addsrc all 3-118
mark cos 8-22
mark ip-precedence 8-23
match any 8-12
match class-map 8-12
match cos 8-13
match destination-address mac 8-14
match dstip 8-14
match dstip6 8-15
match dst14port 8-15
match ethertype 8-12
match ip dscp 8-15
match ip precedence 8-16
match ip tos 8-16
match ip6flowlbl 8-14
match protocol 8-17
match source-address mac 8-18
match srcip 8-18
match srcip6 8-18
match srcl4port 8-18
max-bandwidth-down 12-9
max-bandwidth-up 12-9
maximum-paths (OSPF) 4-61
maximum-paths (OSPFv3) 7-50
max-input-octets 12-10
max-output-octets 12-11
max-total-octets 12-11
member 2-2
mirror 8-20
mode dot1q-tunnel 3-46
mode dvlan-tunnel 3-47
monitor session 3-113
movemanagement 2-3
mtu 3-5
name 12-6
netbios-name-server 9-46
netbios-node-type 9-47
network (DHCP Pool Config) 9-45
network area (OSPF) 4-40
network ipv6 address 7-2
network ipv6 enable 7-2
network ipv6 gateway 7-3
network javamode 10-6
network mac-address 10-5
network mac-type 10-5
network mgmt_vlan 3-31
network parms 10-4
network protocol 10-5
next-server 9-47
no monitor 3-114
option 9-48
passive-interface (OSPF) 4-62
passive-interface (OSPFv3) 7-51
passive-interface default (OSPF) 4-62
passive-interface default (OSPFv3) 7-51
passwords aging 10-35
passwords history 10-35
passwords lock-out ....10-36
passwords min-length 10-34
permit ip host mac host 3-135
ping 9-29
ping ipv6 7-4
ping ipv6 interface 7-5
police-simple 8-23
policy-map 8-24
policy-map rename 8-25
port 10-69
port lacpmode 3-104
port lacpmode enable all 3-104
port lacptimeout (Global Config) 3-105
port lacptimeout (Interface Config) 3-105
port-channel 3-91
port-channel adminmode 3-106
port-channel linktrap 3-106
port-channel load-balance 3-107
port-channel name 3-109
port-channel static 3-103
port-channel system priority 3-109
port-security 3-167
port-security mac-address 3-168
port-security mac-address move 3-169
port-security max-dynamic 3-167
port-security max-static 3-168
prefix-delegation (IPv6) 7-72
priority 10-70
private-group name 3-55
protocol group 3-38
protocol vlan group 3-39
protocol vlan group all 3-40
protocol 12-7
quit 9-31
radius accounting mode 10-53
radius server attribute ....10-53
radius server host 10-54
radius server key 10-56
radius server msgauth 10-57
radius server primary 10-57
radius server retransmit 10-58
radius server timeout 10-58
redirect 8-21
redirect (Captive Portal)....12-8
redirect-url 12-9
redistribute (OSPF) 4-61
redistribute (OSPFv3) 7-52
redistribute (RIP) 4-88
reload 9-31
reload (Stack) 2-6
router ospf 4-39
router rip 4-82
router-id (OSPF) 4-60
router-id (OSPFv3) 7-52
routing 4-8
save 9-31
script apply 10-72
script delete 10-72
script list 10-72
script show 10-73
script validate ....10-73
serial baudrate 10-8
serial timeout 10-9
service dhcp 9-49
service dhcpv6 7-69
service-policy 8-25
session-limit 10-13
session-timeout 10-13
session-timeout (Captive Portal)....12-12
set garp timer join 3-57
set garp timer leave 3-57
set garp timer leaveall 3-58
set gmrp adminmode ....3-61
set gmrp interfacemode 3-62
set gvrp adminmode 3-59
set gvrp interfacemode 3-60
set igmp 3-139
set igmp fast-leave 3-141
set igmp groupmembership-interval 3-142
set igmp interfacemode ....3-141
set igmp maxresponse ....3-143
set igmp mcrtrexpiretime ....3-143
set igmp mrouter 3-144
set igmp mrouter interface 3-145
set igmp querier 3-149
set igmp querier election participate 3-151
set igmp querier query-interval 3-150
set igmp querier timer expiry 3-150
set igmp querier version 3-151
set mld 3-153
set mld fast-leave 3-155
set mld groupmembership-interval 3-156
set mld interfacemode 3-154
set mld maxresponse 3-157
set mld mcrtexpiretime 3-158
set mld mrouter 3-158
set mld mrouter interface 3-159
set mld querier 3-162
set mld querier election participate 3-164
set mld querier query_interval 3-163
set mld querier timer expiry 3-164
set prompt 10-74
set slot disable 2-4
set slot power 2-5
sflow poller 9-86
sflow receiver 9-84
sflow sampler 9-85
show access-lists 8-43
show arp 4-6
show arp access-list 3-139
show arp brief 4-7
show arp switch 4-7
show arp switch 9-6
show authentication methods 3-72
show autoinstall 9-2
show auto-voip 8-49
show bootpdhcprelay 4-35
show bootvar 9-5
show captive-portal client statistics 12-20
show captive-portal client status 12-19
show captive-portal configuration client status 12-22
show captive-portal configuration interface 12-15
show captive-portal configuration locales 12-18
show captive-portal configuration status 12-17
show captive-portal configuration 12-14
show captive-portal interface client status 12-21
show captive-portal interface configuration status 12-23
show captive-portal status 12-4
show captive-portal trapflags 12-19
show captive-portal user 12-29
show captive-portal 12-3
show capture packets 9-62
show class-map 8-26
show classofservice dot1p-mapping 8-5
show classofservice ip-dscp-mapping 8-6
show classofservice ip-precedence-mapping 8-6
show classofservice trust 8-7
show clock 9-40
show diffserv 8-27
show diffserv service 8-30
show diffserv service brief 8-30
show dos-control 3-203
show dot1q-tunnel 3-47
show dot1x 3-72
show dot1x clients 3-76
show dot1x users 3-77
show dvlan-tunnel 3-48
show eventlog 9-7
show forwardingdb agetime 3-205
show garp 3-58
show gmrp configuration 3-63
show gvrp configuration 3-60
show hardware 9-7
show hosts 9-60
show igmpsnooping 3-146
show igmpsnooping mrouter interface 3-147
show igmpsnooping mrouter vlan 3-147
show igmpsnooping querier 3-152
show interface 9-9
show interface ethernet 9-10
show interface loopback 7-9
show interface tunnel 7-7
show interfaces cos-queue 8-7
show interfaces switchport 3-54
show ip access-lists 8-42
show ip arp inspection 3-136
show ip arp inspection interfaces 3-138
show ip arp inspection statistics 3-137
show ip brief 4-13
show ip dhcp binding 9-52
show ip dhcp conflict 9-55
show ip dhcp global configuration 9-52
show ip dhcp pool configuration 9-53
show ip dhcp server statistics 9-54
show ip dhcp snooping ....3-125
show ip dhcp snooping binding 3-126
show ip dhcp snooping database 3-127
show ip dhcp snooping statistics 3-128
show ip dvmrp 5-9
show ip dvmrp interface 5-9
show ip dvmrp neighbor 5-10
show ip dvmrp nexthop 5-11
show ip dvmrp prune 5-11
show ip dvmrp route 5-12
show ip helper-address 4-38
show ip http 10-27
show ip igmp 5-31
show ip igmp groups 5-31
show ip igmp interface 5-32
show ip igmp interface membership 5-33
show ip igmp interface stats 5-34
show ip igmp-proxy 5-36
show ip igmp-proxy groups 5-38
show ip igmp-proxy groups detail 5-39
show ip igmp-proxy interface 5-37
show ip interface 4-14
show ip interface brief 4-16
show ip irdp ....4-23
show ip mcast 5-3
show ip mcast boundary 5-4
show ip mcast interface 5-4
show ip mcast mroute 5-5
show ip mcast mroute group 5-5
show ip mcast mroute source 5-6
show ip ospf 4-65
show ip ospf abr 4-69
show ip ospf area 4-69
show ip ospf asbr 4-70
show ip ospf database 4-71
show ip ospf database database-summary 4-72
show ip ospf interface 4-73
show ip ospf interface brief 4-74
show ip ospf interface stats 4-75
show ip ospf neighbor 4-77
show ip ospf range 4-79
show ip ospf statistics 4-80
show ip ospf stub table 4-80
show ip ospf virtual-link 4-81
show ip ospf virtual-link brief 4-82
show ip pimdm 5-14
show ip pimdm interface ....5-14
show ip pimdm interface stats ....5-15
show ip pimdm neighbor 5-15
show ip pimsm 5-23
show ip pimsm bsr 5-23
show ip pimsm interface 5-24
show ip pimsm neighbor 5-25
show ip pimsm rp mapping 5-26
show ip pimsm rphash 5-25
show ip rip 4-89
show ip rip interface 4-90
show ip rip interface brief 4-89
show ip route 4-16
show ip route preferences ....4-19
show ip route summary 4-18
show ip source binding 3-130
show ip ssh 10-18
show ip stats 4-20
show ip verify source 3-129
show ip vlan 4-24
show ip vrrp 4-32
show ip vrrp interface 4-32
show ip vrrp interface brief 4-33
show ip vrrp interface stats ....4-31
show ipv6 access-lists 8-47
show ipv6 brief 7-20
show ipv6 dhcp 7-73
show ipv6 dhcp binding 7-76
show ipv6 dhcp interface 7-74
show ipv6 dhcp pool 7-76
show ipv6 dhcp statistics 7-73
show ipv6 interface 7-21
show ipv6 mld groups 6-19
show ipv6 mld interface 6-21
show ipv6 mld traffic 6-22
show ipv6 mld-proxy 6-24
show ipv6 mld-proxy groups 6-26
show ipv6 mld-proxy groups detail 6-27
show ipv6 mld-proxy interface 6-25
show ipv6 mroute 6-2
show ipv6 mroute group 6-3
show ipv6 mroute source 6-3
show ipv6 neighbor 7-23
show ipv6 ospf 7-55
show ipv6 ospf abr 7-57
show ipv6 ospf area 7-57
show ipv6 ospf asbr 7-59
show ipv6 ospf database 7-59
show ipv6 ospf database database-summary 7-60
show ipv6 ospf interface 7-61
show ipv6 ospf interface brief 7-62
show ipv6 ospf interface stats 7-63
show ipv6 ospf neighbor 7-65
show ipv6 ospf range 7-66
show ipv6 ospf stub table 7-67
show ipv6 ospf virtual-link 7-67
show ipv6 ospf virtual-link brief 7-68
show ipv6 pimdm 6-5
show ipv6 pimdm interface 6-7
show ipv6 pimdm neighbor 6-6
show ipv6 pimsm 6-13
show ipv6 pimsm bsr 6-14
show ipv6 pimsm interface 6-15
show ipv6 pimsm neighbor 6-15
show ipv6 pimsm rp mapping 6-16
show ipv6 pimsm rphash 6-16
show ipv6 route 7-24
show ipv6 route preferences 7-26
show ipv6 route summary 7-27
show ipv6 traffic 7-28
show ipv6 vlan 7-28
show isdp 3-208
show isdp entry 3-210
show isdp interface 3-209
show isdp neighbors 3-210
show isdp traffic 3-211
show lacp actor 3-109
show lacp partner 3-110
show license 9-90
show license features....9-90
show lldp 3-175
show lldp interface 3-175
show lldp local-device 3-180
show lldp local-device detail 3-180
show lldp med 3-185
show lldp med interface 3-186
show lldp med local-device detail 3-187
show lldp med remote-device 3-189
show lldp med remote-device detail 3-190
show lldp remote-device 3-177
show lldp remote-device detail 3-178
show lldp statistics 3-176
show logging 9-21
show logging buffered 9-22
show logging hosts 9-22
show logging traplogs 9-23
show loginsession 10-28
show mac access-lists 8-36
show mac-address-table gmrp 3-64
show mac-address-table igmpsnooping 3-148
show mac-address-table mldsnooping 3-161
show mac-address-table multicast 3-205
show mac-address-table static 3-119
show mac-address-table staticfiltering 3-119
show mac-address-table stats 3-206
show mac-addr-table 9-12
show mbuf total 9-14
show mldsnooping 3-159
show mldsnooping mrouter 3-161
show mldsnooping mrouter vlan ....3-161
show mldsnooping querier 3-165
show monitor session 3-114
show network 10-6
show network ndp 7-4
show passwords configuration ....10-36
show policy-map 8-28
show policy-map interface 8-31
show port 3-8
show port description 3-9
show port protocol 3-8
show port status 3-9
show port-channel 3-111
show port-channel 3-112
show port-channel brief 3-110
show port-channel system priority 3-112
show port-security 3-169
show port-security dynamic 3-169
show port-security static 3-170
show port-security violation 3-170
show private-group 3-56
show process cpu 9-13
show radius 10-59
show radius accounting 10-62
show radius accounting statistics 10-63
show radius servers 10-60
show radius statistics 10-65
show running-config 9-15
show running-config interface 9-16
show serial 10-10
show service-policy 8-32
show sflow agent 9-87
show sflow pollers 9-87
show sflow receivers 9-88
show sflow samplers 9-89
show slot 2-6
show snmpcommunity 10-50
show snmptrap 10-50
show sntp 9-38
show sntp client 9-38
show sntp server 9-39
show spanning-tree 3-23
show spanning-tree brief 3-24
show spanning-tree interface 3-25
show spanning-tree mst port detailed 3-26
show spanning-tree mst port summary 3-28
show spanning-tree mst summary 3-29
show spanning-tree summary 3-30
show spanning-tree vlan 3-30
show stack-port 2-10
show stack-port counters 2-11
show stack-port diag 2-11
show storm-control 3-90
show supported cardtype 2-7
show supported switchtype 2-9
show switch 2-8
show switchport protected 3-53
show sysinfo 9-16
show tacacs 10-70
show tech-support 9-17
show telnet 10-15
show telnetcon 10-16
show terminal length 9-18
show trapflags 10-51
show users 10-32
show users accounts 10-33
show users login-history 10-34
show users long 10-33
show version 9-8
show vlan 3-42
show vlan
show vlan association mac 3-45
show vlan association subnet 3-45
show vlan brief 3-43
show vlan port 3-44
show voice vlan ....3-50
shutdown 3-6
shutdown all 3-6
slot 2-4
snmp trap link-status 10-48
snmp trap link-status all 10-49
snmp-server 10-41
snmp-server community 10-41
snmp-server community ipaddr 10-42
snmp-server community ipmask 10-42
snmp-server community mode 10-43
snmp-server community ro 10-43
snmp-server community rw 10-44
snmp-server enable traps 10-44
snmp-server enable traps linkmode 10-45
snmp-server enable traps multiusers 10-45
snmp-server enable traps stpmode 10-46
snmp-server enable traps violation 10-44
snmptrap 10-46
snmptrap ipaddr 10-48
snmptrap mode 10-48
snmptrap snmpversion 10-47
sntp broadcast client poll-interval 9-34
sntp client mode 9-35
sntp client port 9-35
sntp server 9-37
sntp unicast client poll-interval 9-36
sntp unicast client poll-retry 9-36
sntp unicast client poll-timeout 9-36
spanning-tree 3-11
spanning-tree bpdufilter default 3-11
spanning-tree bpduflood 3-12
spanning-tree bpduforwarding 3-22
spanning-tree bpduguard 3-12
spanning-tree bpdumigrationcheck 3-13
spanning-tree configuration name 3-13
spanning-tree configuration revision 3-14
spanning-tree edgeport 3-14
spanning-tree edgeport all 3-22
spanning-tree forceversion 3-15
spanning-tree forward-time 3-15
spanning-tree guard 3-16
spanning-tree max-age 3-16
spanning-tree max-hops 3-17
spanning-tree mst 3-17
spanning-tree mst instance 3-19
spanning-tree mst priority 3-19
spanning-tree mst vlan 3-20
spanning-tree port mode 3-21
spanning-tree port mode all 3-21
speed 3-7
speed all 3-7
split-horizon 4-87
sshcon maxsessions 10-17
sshcon timeout 10-18
stack 2-1
stack-port 2-10
storm-control broadcast 3-78
storm-control broadcast (Global Config) 3-80
storm-control broadcast level 3-79
storm-control broadcast level (Global Config)....3-81
storm-control broadcast rate 3-80
storm-control broadcast rate (Global Config)....3-81
storm-control flowcontrol 3-89
storm-control multicast 3-82
storm-control multicast (Global Config) 3-84
storm-control multicast level 3-83
storm-control multicast level (Global Config) 3-84
storm-control multicast rate 3-83
storm-control multicast rate (Global Config)....3-85
storm-control unicast 3-85
storm-control unicast (Global Config)....3-87
storm-control unicast level 3-86
storm-control unicast level (Global Config) 3-88
storm-control unicast rate 3-87
storm-control unicast rate (Global Config)....3-88
switch priority 2-2
switch renumber 2-3
switchport private-group 3-54
switchport protected (Global Config) 3-52
switchport protected (Interface Config) 3-53
tacacs-server host 10-67
tacacs-server key 10-68
tacacs-server timeout 10-68
telnet 10-11
telnetcon maxsessions 10-14
telnetcon timeout 10-14
terminal length 9-17
timeout 10-70
timers spf 4-63
traceroute 9-25
traceroute ipv6 7-6
traceroute ipv6 9-26
traffic-shape 8-5
transport input telnet 10-12
transport output telnet 10-12
trapflags (OSPF) 4-63
trapflags (OSPFv3) 7-52
tunnel destination 7-7
tunnel mode ipv6ip 7-7
tunnel source 7-7
update bootcode 9-6
user group name 12-32
user group rename 12-32
user group 12-25
user group (Create) 12-31
user idle-timeout 12-26
user max-bandwidth-down 12-27
user max-bandwidth-up 12-27
user max-input-octets 12-28
user max-output-octets 12-28
user max-total-octets 12-29
user name 12-25
user password 12-24
user session-timeout 12-26
username 10-29
username
username nopassword 10-30
username snmpv3 accessmode 10-30
username snmpv3 authentication ....10-31
username snmpv3 encryption 10-32
verification 12-7
vlan 3-32
vlan acceptframe 3-32
vlan association mac 3-42
vlan association subnet 3-41
vlan database 3-31
vlan ingressfilter 3-33
vlan makestatic 3-33
vlan name 3-34
vlan participation 3-34
vlan participation all 3-35
vlan port acceptframe all 3-35
vlan port ingressfilter all 3-36
vlan port priority all ....3-51
vlan port pvid all 3-36
vlan port tagging all 3-37
vlan priority ....3-51
vlan protocol group 3-37
vlan protocol group add protocol 3-38
vlan protocol group remove 3-38
vlan pvid 3-40
vlan routing 4-24
vlan tagging 3-41
voice vlan (Global Config) 3-49
voice vlan (Interface Config) 3-49
voice vlan data priority 3-50
write memory 10-40