rmon collection stats

Use the rmon collection stats interface configuration command on the switch stack or on a standalone switch to collect Ethernet group statistics, which include usage statistics about broadcast and multicast packets, and error statistics about cyclic redundancy check (CRC) alignment errors and collisions. Use the no form of this command to return to the default setting.

rmon collection stats index [ owner name ]

no rmon collection stats index [ owner name ]

 
Syntax Description

index

Remote Network Monitoring (RMON) collection control index. The range is 1 to 65535.

owner name

(Optional) Owner of the RMON collection.

 
Defaults

The RMON statistics collection is disabled.

 
Command Modes

Interface configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The RMON statistics collection command is based on hardware counters.

Examples

This example shows how to collect RMON statistics for the owner root :

Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# rmon collection stats 2 owner root
 

You can verify your setting by entering the show rmon statistics privileged EXEC command.

 
Related Commands

Command
Description

show rmon statistics

Displays RMON statistics.

rsu

To configure redundant uplinks to the network during the rolling stack upgrade process, use the rsu command in interface configuration mode. Use the no form of this command to return to the default setting.

rsu { active | standby }

no rsu { active | standby }

 
Syntax Description

active

Sets the interface role to active.

standby

Sets the interface role to standby.

 
Defaults

The role is not set.

 
Command Modes

Interface configuration

 
Command History

Release
Modification

12.2(58)SE

This command was introduced.

 
Usage Guidelines

If spanning tree protocol (STP) is enabled, set the standby role to the blocked interface.

Examples

To set a member interface role to standby :

Switch(config-if)# rsu standby

 
Related Commands

Command
Description

archive download-sw /rolling-stack upgrade

Starts the rolling state upgrade process to upgrade the members one at a time.

show switch stack-upgrade { sequence | status }

Displays the sequence of the switches to be upgraded or the rolling stack upgrade status.

sdm prefer

To configure the template used in Switch Database Management (SDM) resource allocation, use the sdm prefer command in global configuration mode. You can use a template to allocate system resources to best support the features being used in your application. Use a template to provide maximum system usage for unicast routing or for VLAN configuration or to select the dual IPv4 and IPv6 template to support IPv6 forwarding. To return to the default template, use the no form of this command.

sdm prefer { access | default | dual-ipv4-and-ipv6 { default | routing | vlan } | indirect-ipv4-and-ipv6- routing | routing | vlan }

Note Although visible in the command-line help, the ipe keyword is not supported. The routing keywords are not supported on switched running the LAN base feature set.

 
Syntax Description

access

Provides maximum system usage for access control lists (ACLs). Use this template if you have a large number of ACLs.

default

Gives balance to all functions.

dual-ipv4-and-ipv6 { default | routing | vlan }

Select a template that supports both IPv4 and IPv6 routing.

  • default —Provide balance to IPv4 and IPv6 functionality.
  • routing —Provide maximum system usage for IPv4 and IPv6 routing, including IPv4 policy-based routing.

Note The routing keyword is not supported on switches running the LAN base feature set.

  • vlan —Provide maximum system usage for IPv4 and IPv6 VLANs.

indirect-ipv4-and-
ipv6-routing

Allows more entries for IPv4 and IPv6 summary or indirect routes, and fewer entries for IPv4 and IPv6 policy-based routing, QoS, and ACLs.

routing

Provides maximum system usage for unicast routing. You would typically use this template for a router or aggregator in the middle of a network.

This keyword is not supported on switches running the LAN base feature set.

vlan

Provides maximum system usage for VLANs. This template maximizes system resources for use as a Layer 2 switch with no routing.

 
Defaults

The default template provides a balance to all features.

 
Command Modes

Global configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

12.2(58)SE

The indirect-ipv4-and-ipv6-routing template was added.

 
Usage Guidelines

You must reload the switch for the configuration to take effect. If you enter the show sdm prefer command before you enter the reload privileged EXEC command, the show sdm prefer command shows the template currently in use and the template that will become active after a reload.

Although these templates are visible on all switches, the resources on switches running the LAN base feature do not match those shown in the templates:

  • Switches running the LAN base feature set support only 255 VLAN s, not 1024 as shown in all templates.
  • Although the routing template is visible, the template is not supported.
  • The LAN base feature set supports only 16 static IPv4 routes on SVIs and the switch must be running the default template for static routing.
  • On switches running the LAN base feature set, none of the routing values shown for the templates are valid.

Follow these guidelines for switch stacks:

  • In a switch stack, all stack members use the same SDM desktop template that is stored on the stack master. When a new switch member is added to a stack, the stored SDM configuration overrides the template configured on an individual switch.
  • The IPv6 packets are routed in hardware across the stack, as long as the packet does not have exceptions (IPv6Options) and the switches have not run out of hardware resources.
  • If a stack member cannot support the template that is running on the master switch, the switch goes into SDM mismatch mode, the master switch does not attempt to change the SDM template, and the switch cannot be a functioning member of the stack.

For more information about stacking, see the “Managing Switch Stacks” chapter in the software configuration guide.

Use the no sdm prefer command to set the switch to the default template.

The access template maximizes system resources for access control lists (ACLs) as required to accommodate a large number of ACLs.

The default templates balances the use of system resources.

Use the sdm prefer vlan global configuration command only on switches intended for Layer 2 switching with no routing. When you use the VLAN template, no system resources are reserved for routing entries, and any routing is done through software. This overloads the CPU and severely degrades routing performance.

Do not select a routing template ( sdm prefer routing, sdm prefer dual-ipv4 -and-ipv6 routing, or indirect-ipv4-and-ipv6-routing) when the switch is running the LAN base feature set. The LAN base feature set supports 16 static IPv4 routes on SVIs when the switch is running the default template.

Do not use the routing template if you do not have routing enabled on your switch. Entering the sdm prefer routing global configuration command prevents other features from using the memory allocated to unicast routing in the routing template.

Do not use the ipv4-and-ipv6 templates if you do not plan to enable IPv6 routing on the switch. Entering the sdm prefer ipv4-and-ipv6 { default | routing | vlan } global configuration command divides resources between IPv4 and IPv6, limiting those allocated to IPv4 forwarding.

Use the indirect-ipv4-and-ipv6-routing template to provide more space for IPv4 and IPv6 summary or indirect routes by providing less space for IPv4 policy-based routing entries and IPv6 ACL, QoS, and policy-based routes.

You can verify your settings by entering the show sdm prefer privileged EXEC command.

Table 2-23 lists the approximate number of each resource that is supported in each of the IPv4-only templates for a switch. The values in the template are based on 8 routed interfaces and 1024 VLANs and represent the approximate hardware boundaries set when a template is selected. If a section of a hardware resource is full, all processing overflow is sent to the CPU, seriously impacting switch performance.

Note On switches running the LAN base feature set, none of the routing values shown for the templates are valid.

 

Table 2-23 Approximate Number of Feature Resources Allowed by IPv4 Templates

Resource
Access
Default
Routing
VLAN

Unicast MAC addresses

4 K

6 K

3 K

12 K

Internet Group Management Protocol (IGMP) groups and multicast routes

1 K

1 K

1 K

1 K

Unicast routes

6 K

8 K

11 K

0
  • Directly connected hosts

4 K

6 K

3 K

0
  • Indirect routes

2 K

2 K

8 K

0

Policy-based routing access control entries (ACEs)

0.5 K

0

0.5 K

0

Quality of service (QoS) classification ACEs

0.5 K

0.5 K

0.5 K

0.5 K

Security ACEs

2 K

1 K

1 K

1 K

VLANs

1 K

1 K

1 K

1 K

Table 2-24 lists the approximate number of each resource supported in each of the dual IPv4-and IPv6 templates.

Note On switches running the LAN base feature set, routing values shown in all templates are not valid.

 

Table 2-24 Approximate Feature Resources Allowed by Dual IPv4-IPv6 Templates

Resource
Dual IPv4-and IPv6 Templates
Indirect IPv4 and IPv6 Routing
Default
VLAN
Routing

Unicast MAC addresses

2 K

8 K

1.5 K

2 K

IPv4 IGMP groups and multicast routes

1 K

1 K (IGMP) 0 (multicast)

1 K

1 K

Total IPv4 unicast routes:

3 K

0

2.7 K

4 K
  • Directly connected IPv4 hosts

2 K

0

1.5 K

2 K
  • Indirect IPv4 routes

1 K

0

1.2 K

2 K

IPv4 policy-based routing ACEs

0

0

0.25 K

0.125 K

IPv4 or MAC QoS ACEs (total)

0.5 K

0.5 K

0.5 K

0.5 K

IPv4 or MAC security ACEs (total)

1 K

1 K

0.5 K

0.625 K

IPv6 multicast groups

1 K

1 K

1 K

1 K

Directly connected IPv6 addresses

2 K

0

1.5 K

2K

Indirect IPv6 unicast routes

1 K

0 1.25 K

1.25 K

3 K

IPv6policy-based routing ACEs

0

0

0.25 K

0.125 K

IPv6 QoS ACEs

0.5 K

0.5 K

0.5 K

0.125 K

IPv6 security ACEs

0.5 K

0.5 K

0.5 K

0.125 K

Examples

This example shows how to configure the access template on a switch:

Switch(config)# sdm prefer access
Switch(config)# exit
Switch# reload
 

This example shows how to configure the routing template on a switch running the IP base or IP services feature set:

Switch(config)# sdm prefer routing
Switch(config)# exit
Switch# reload
 

This example shows how to configure the dual IPv4-and-IPv6 default template on a switch:

Switch(config)# sdm prefer dual-ipv4-and-ipv6 default
Switch(config)# exit
Switch# reload
 

This example shows how to change a switch template to the default template.

Switch(config)# no sdm prefer
Switch(config)# exit
Switch# reload

 
Related Commands

Command
Description

show sdm prefer

Displays the current SDM template in use or displays the templates that can be used, with approximate resource allocation per feature.

service password-recovery

Use the service password-recovery global configuration command on the switch stack or on a standalone switch to enable the password-recovery mechanism (the default). This mechanism allows an end user with physical access to the switch to hold down the Mode button and interrupt the boot process while the switch is powering up and to assign a new password. Use the no form of this command to disable part of the password-recovery functionality. When the password-recovery mechanism is disabled, interrupting the boot process is allowed only if the user agrees to set the system back to the default configuration.

service password-recovery

no service password-recovery

 
Syntax Description

This command has no arguments or keywords.

 
Defaults

The password-recovery mechanism is enabled.

 
Command Modes

Global configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

As a system administrator, you can use the no service password-recovery command to disable some of the functionality of the password recovery feature by allowing an end user to reset a password only by agreeing to return to the default configuration.

To use the password-recovery procedure, a user with physical access to the switch holds down the Mode button while the unit powers up and for a second or two after the LED above port 1X turns off. When the button is released, the system continues with initialization.

If the password-recovery mechanism is disabled, this message appears:

The password-recovery mechanism has been triggered, but
is currently disabled. Access to the boot loader prompt
through the password-recovery mechanism is disallowed at
this point. However, if you agree to let the system be
reset back to the default system configuration, access
to the boot loader prompt can still be allowed.
 
Would you like to reset the system back to the default configuration (y/n)?
 

If the user chooses not to reset the system to the default configuration, the normal boot process continues, as if the Mode button had not been pressed. If you choose to reset the system to the default configuration, the configuration file in flash memory is deleted, and the VLAN database file, flash:vlan.dat (if present), is deleted.

Note If you use the no service password-recovery command to control end user access to passwords, we recommend that you save a copy of the config file in a location away from the switch in case the end user uses the password recovery procedure and sets the system back to default values. Do not keep a backup copy of the config file on the switch.

If the switch is operating in VTP transparent mode, we recommend that you also save a copy of the vlan.dat file in a location away from the switch.

When you enter the service password-recovery or no service password-recovery command on the stack master, it is propagated throughout the stack and applied to all switches in the stack.

You can verify if password recovery is enabled or disabled by entering the show version privileged EXEC command.

Examples

This example shows how to disable password recovery on a switch or switch stack so that a user can only reset a password by agreeing to return to the default configuration.

Switch(config)# no service-password recovery
Switch(config)# exit

 
Related Commands

Command
Description

show version

Displays version information for the hardware and firmware.

service-policy

Use the service-policy interface configuration command on the switch stack or on a standalone switch to apply a policy map defined by the policy-map command to the input of a physical port or a switch virtual interface (SVI). Use the no form of this command to remove the policy map and port association.

service-policy input policy-map-name

no service-policy input policy-map-name

 
Syntax Description

input policy-map-name

Apply the specified policy map to the input of a physical port or an SVI.

Note Though visible in the command-line help strings, the history keyword is not supported, and you should ignore the statistics that it gathers. The output keyword is also not supported.

 
Defaults

No policy maps are attached to the port.

 
Command Modes

Interface configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Only one policy map per ingress port is supported.

Policy maps can be configured on physical ports or on SVIs. When VLAN-based quality of service (QoS) is disabled by using the no mls qos vlan-based interface configuration command on a physical port, you can configure a port-based policy map on the port. If VLAN-based QoS is enabled by using the mls qos vlan-based interface configuration command on a physical port, the switch removes the previously configured port-based policy map. After a hierarchical policy map is configured and applied on an SVI, the interface-level policy map takes effect on the interface.

You can apply a policy map to incoming traffic on a physical port or on an SVI. You can configure different interface-level policy maps for each class defined in the VLAN-level policy map. For more information about hierarchical policy maps, see the “Configuring QoS” chapter in the software configuration guide for this release.

Classification using a port trust state (for example, mls qos trust [ cos | dscp | ip-precedence ] and a policy map (for example, service-policy input policy-map-name) are mutually exclusive. The last one configured overwrites the previous configuration.

Examples

This example shows how to apply plcmap1 to an physical ingress port:

Switch(config)# interface gigabitethernet2/0/1
Switch(config-if)# service-policy input plcmap1
 

This example shows how to remove plcmap2 from a physical port:

Switch(config)# interface gigabitethernet2/0/2
Switch(config-if)# no service-policy input plcmap2
 

This example shows how to apply plcmap1 to an ingress SVI when VLAN-based QoS is enabled:

Switch(config)# interface vlan 10
Switch(config-if)# service-policy input plcmap1
 

This example shows how to create a hierarchical policy map and attach it to an SVI:

Switch> enable
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# access-list 101 permit ip any any
Switch(config)# class-map cm-1
Switch(config-cmap)# match access 101
Switch(config-cmap)# exit
Switch(config)# exit
Switch#
Switch#
Switch# config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# class-map cm-interface-1
Switch(config-cmap)# match input gigabitethernet3/0/1 - gigabitethernet3/0/2
Switch(config-cmap)# exit
Switch(config)# policy-map port-plcmap
Switch(config-pmap)# class-map cm-interface-1
Switch(config-pmap-c)# police 900000 9000 exc policed-dscp-transmit
Switch(config-pmap-c)# exit
Switch(config-pmap)# exit
Switch(config)# policy-map vlan-plcmap
Switch(config-pmap)# class-map cm-1
Switch(config-pmap-c)# set dscp 7
Switch(config-pmap-c)# service-policy port-plcmap-1
Switch(config-pmap-c)# exit
Switch(config-pmap)# class-map cm-2
Switch(config-pmap-c)# match ip dscp 2
Switch(config-pmap-c)# service-policy port-plcmap-1
Switch(config-pmap)# exit
Switch(config-pmap)# class-map cm-3
Switch(config-pmap-c)# match ip dscp 3
Switch(config-pmap-c)# service-policy port-plcmap-2
Switch(config-pmap)# exit
Switch(config-pmap)# class-map cm-4
Switch(config-pmap-c)# trust dscp
Switch(config-pmap)# exit
Switch(config)# int vlan 10
Switch(config-if)#
Switch(config-if)# ser input vlan-plcmap
Switch(config-if)# exit
Switch(config)# exit
Switch#
 

You can verify your settings by entering the show running-config privileged EXEC command.

 
Related Commands

Command
Description

policy-map

Creates or modifies a policy map that can be attached to multiple ports to specify a service policy.

show policy-map

Displays QoS policy maps.

show running-config

Displays the operating configuration.

session

Use the session privileged EXEC command on the stack master to access a specific stack member.

session stack-member-number

Note This command is supported only on Catalyst 3750-X switches.

 
Syntax Description

stack-member-number

Specify the stack member number. The range is 1 to 9.

 
Defaults

No default is defined.

 
Command Modes

Global configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

When you access the stack member, its stack member number is appended to the system prompt.

Examples

This example shows how to access stack member 6:

Switch(config)# session 6
Switch-6#

 
Related Commands

Command
Description

reload

Reloads the stack member and puts a configuration change into effect.

switch priority

Changes the stack member priority value.

switch renumber

Changes the stack member number.

show switch

Displays information about the switch stack and its stack members.

set

Use the set policy-map class configuration command on the switch stack or on a standalone switch to classify IP traffic by setting a Differentiated Services Code Point (DSCP) or an IP-precedence value in the packet. Use the no form of this command to remove traffic classification.

set { dscp new-dscp | [ ip ] precedence new-precedence }

no set { dscp new-dscp | [ ip ] precedence new-precedence }

 
Syntax Description

dscp new-dscp

New DSCP value assigned to the classified traffic. The range is 0 to 63. You also can enter a mnemonic name for a commonly used value.

[ip] precedence new-precedence

New IP-precedence value assigned to the classified traffic. The range is 0 to 7. You also can enter a mnemonic name for a commonly used value.

 
Defaults

No traffic classification is defined.

 
Command Modes

Policy-map class configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you have used the set ip dscp p olicy-map class configuration command, the switch changes this command to set dscp in the switch configuration. If you enter the set ip dscp policy-map class configuration command, this setting appears as set dscp in the switch configuration.

You can use the set ip precedence policy-map class configuration command or the set precedence policy-map class configuration command. This setting appears as set ip precedence in the switch configuration.

The set command is mutually exclusive with the trust policy-map class configuration command within the same policy map.

For the set dscp new-dscp or the set ip precedence new-precedence command, you can enter a mnemonic name for a commonly used value. For example, you can enter the set dscp af11 command, which is the same as entering the set dscp 10 command. You can enter the set ip precedence critical command, which is the same as entering the set ip precedence 5 command. For a list of supported mnemonics, enter the set dscp ? or the set ip precedence ? command to see the command-line help strings.

To return to policy-map configuration mode, use the exit command. To return to privileged EXEC mode, use the end command.

Examples

This example shows how to assign DSCP 10 to all FTP traffic without any policers:

Switch(config)# policy-map policy_ftp
Switch(config-pmap)# class ftp_class
Switch(config-pmap-c)# set dscp 10
Switch(config-pmap)# exit
 

You can verify your settings by entering the show policy-map privileged EXEC command.

 
Related Commands

Command
Description

class

Defines a traffic classification match criteria (through the police, set, and trust policy-map class configuration commands) for the specified class-map name.

police

Defines a policer for classified traffic.

policy-map

Creates or modifies a policy map that can be attached to multiple ports to specify a service policy.

show policy-map

Displays QoS policy maps.

trust

Defines a trust state for traffic classified through the class policy-map configuration command or the class-map global configuration command.

setup

Use the setup privileged EXEC command to configure the switch with its initial configuration.

setup

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

When you use the setup command, make sure that you have this information:

  • IP address and network mask
  • Password strategy for your environment
  • Whether the switch will be used as the cluster command switch and the cluster name

When you enter the setup command, an interactive dialog, called the System Configuration Dialog, appears. It guides you through the configuration process and prompts you for information. The values shown in brackets next to each prompt are the default values last set by using either the setup command facility or the configure privileged EXEC command.

Help text is provided for each prompt. To access help text, press the question mark (?) key at a prompt.

To return to the privileged EXEC prompt without making changes and without running through the entire System Configuration Dialog, press Ctrl-C.

When you complete your changes, the setup program shows you the configuration command script that was created during the setup session. You can save the configuration in NVRAM or return to the setup program or the command-line prompt without saving it.

Examples

This is an example of output from the setup command:

Switch# setup
--- System Configuration Dialog ---
 
Continue with configuration dialog? [yes/no]: yes
 
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
 
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system.
 
Would you like to enter basic management setup? [yes/no]: yes
Configuring global parameters:
 
Enter host name [Switch]:host-name
 
The enable secret is a password used to protect access to
privileged EXEC and configuration modes. This password, after
entered, becomes encrypted in the configuration.
Enter enable secret: enable-secret-password
 
The enable password is used when you do not specify an
enable secret password, with some older software versions, and
some boot images.
Enter enable password: enable-password
 
The virtual terminal password is used to protect
access to the router over a network interface.
Enter virtual terminal password: terminal-password
 
Configure SNMP Network Management? [no]: yes
Community string [public]:
 
Current interface summary
Any interface listed with OK? value “NO” does not have a valid configuration
 
Interface IP-Address OK? Method Status Protocol
Vlan1 172.20.135.202 YES NVRAM up up
 
GigabitEthernet6/0/1 unassigned YES unset up up
 
GigabitEthernet6/0/2 unassigned YES unset up down
 
<output truncated>
 
Port-channel1 unassigned YES unset up down
 
Enter interface name used to connect to the
management network from the above interface summary: vlan1
 
Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: ip_address
Subnet mask for this interface [255.0.0.0]: subnet_mask
 
Would you like to enable as a cluster command switch? [yes/no]: yes
 
Enter cluster name: cluster-name
 
The following configuration command script was created:
 
hostname host-name
enable secret 5 $1$LiBw$0Xc1wyT.PXPkuhFwqyhVi0
enable password enable-password
line vty 0 15
password terminal-password
snmp-server community public
!
no ip routing
!
interface GigabitEthernet6/0/1
no ip address
!
interface GigabitEthernet6/0/2
no ip address
!
 
cluster enable cluster-name
!
end
Use this configuration? [yes/no]: yes
!
[0] Go to the IOS command prompt without saving this config.
 
[1] Return back to the setup without saving this config.
 
[2] Save this configuration to nvram and exit.
 
Enter your selection [2]:

 
Related Commands

Command
Description

show running-config

Displays the operating configuration.

show version

Displays version information for the hardware and firmware.

setup express

Use the setup express global configuration command to enable Express Setup mode on the switch stack or on a standalone switch. Use the no form of this command to disable Express Setup mode.

setup express

no setup express

 
Syntax Description

This command has no arguments or keywords.

 
Defaults

Express Setup is enabled.

 
Command Modes

Global configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

When Express Setup is enabled on a new (unconfigured) switch, pressing the Mode button for 2 seconds activates Express Setup. You can access the switch through an Ethernet port by using the IP address 10.0.0.1 and then can configure the switch with the web-based Express Setup program or the command-line interface (CLI)-based setup program.

When you press the Mode button for 2 seconds on a configured switch, the LEDs above the Mode button start blinking. If you press the Mode button for a total of 10 seconds, the switch configuration is deleted, and the switch reboots. The switch can then be configured like a new switch, either through the web-based Express Setup program or the CLI-based setup program.

Note As soon as you make any change to the switch configuration (including entering no at the beginning of the CLI-based setup program), configuration by Express Setup is no longer available. You can only run Express Setup again by pressing the Mode button for 10 seconds. This deletes the switch configuration and reboots the switch.

If Express Setup is active on the switch, entering the write memory or copy running-configuration startup-configuration privileged EXEC commands deactivates Express Setup. The IP address 10.0.0.1 is no longer valid on the switch, and your connection using this IP address ends.

The primary purpose of the no setup express command is to prevent someone from deleting the switch configuration by pressing the Mode button for 10 seconds.

Examples

This example shows how to enable Express Setup mode:

Switch(config)# setup express
 

You can verify that Express Setup mode is enabled by pressing the Mode button:

  • On an unconfigured switch, the LEDs above the Mode button turn solid green after 3 seconds.
  • On a configured switch, the mode LEDs begin blinking after 2 seconds and turn solid green after 10 seconds.
Caution If you hold the Mode button down for a total of 10 seconds, the configuration is deleted, and the switch reboots.

This example shows how to disable Express Setup mode:

Switch(config)# no setup express
 

You can verify that Express Setup mode is disabled by pressing the Mode button. The mode LEDs do not turn solid green or begin blinking green if Express Setup mode is not enabled on the switch.

 
Related Commands

Command
Description

show setup express

Displays if Express Setup mode is active.

show access-lists

Use the show access-lists privileged EXEC command to display access control lists (ACLs) configured on the switch.

show access-lists [name | number | hardware counters | ipc ]

 
Syntax Description

name

(Optional) Name of the ACL.

number

(Optional) ACL number. The range is 1 to 2699.

hardware counters

(Optional) Display global hardware ACL statistics for switched and routed packets.

ipc

(Optional) Display Interprocess Communication (IPC) protocol access-list configuration download information.

Note Though visible in the command-line help strings, the rate-limit keywords are not supported.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The switch supports only IP standard and extended access lists. Therefore, the allowed numbers are only 1 to 199 and 1300 to 2699.

This command also displays the MAC ACLs that are configured.

Examples

This is an example of output from the show access-lists command:

Switch# show access-lists
Standard IP access list 1
10 permit 1.1.1.1
20 permit 2.2.2.2
30 permit any
40 permit 0.255.255.255, wildcard bits 12.0.0.0
Standard IP access list videowizard_1-1-1-1
10 permit 1.1.1.1
Standard IP access list videowizard_10-10-10-10
10 permit 10.10.10.10
Extended IP access list 121
10 permit ahp host 10.10.10.10 host 20.20.10.10 precedence routine
Extended IP access list CMP-NAT-ACL
Dynamic Cluster-HSRP deny ip any any
10 deny ip any host 19.19.11.11
20 deny ip any host 10.11.12.13
Dynamic Cluster-NAT permit ip any any
10 permit ip host 10.99.100.128 any
20 permit ip host 10.46.22.128 any
30 permit ip host 10.45.101.64 any
40 permit ip host 10.45.20.64 any
50 permit ip host 10.213.43.128 any
60 permit ip host 10.91.28.64 any
70 permit ip host 10.99.75.128 any
80 permit ip host 10.38.49.0 any
 

This is an example of output from the show access-lists hardware counters command:

Switch# show access-lists hardware counters
L2 ACL INPUT Statistics
Drop: All frame count: 855
Drop: All bytes count: 94143
Drop And Log: All frame count: 0
Drop And Log: All bytes count: 0
Bridge Only: All frame count: 0
Bridge Only: All bytes count: 0
Bridge Only And Log: All frame count: 0
Bridge Only And Log: All bytes count: 0
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 2121
Forwarded: All bytes count: 180762
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0
 
L3 ACL INPUT Statistics
Drop: All frame count: 0
Drop: All bytes count: 0
Drop And Log: All frame count: 0
Drop And Log: All bytes count: 0
Bridge Only: All frame count: 0
Bridge Only: All bytes count: 0
Bridge Only And Log: All frame count: 0
Bridge Only And Log: All bytes count: 0
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 13586
Forwarded: All bytes count: 1236182
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0
 
L2 ACL OUTPUT Statistics
Drop: All frame count: 0
Drop: All bytes count: 0
Drop And Log: All frame count: 0
Drop And Log: All bytes count: 0
Bridge Only: All frame count: 0
Bridge Only: All bytes count: 0
Bridge Only And Log: All frame count: 0
Bridge Only And Log: All bytes count: 0
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 232983
Forwarded: All bytes count: 16825661
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0
 
L3 ACL OUTPUT Statistics
Drop: All frame count: 0
Drop: All bytes count: 0
Drop And Log: All frame count: 0
Drop And Log: All bytes count: 0
Bridge Only: All frame count: 0
Bridge Only: All bytes count: 0
Bridge Only And Log: All frame count: 0
Bridge Only And Log: All bytes count: 0
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 514434
Forwarded: All bytes count: 39048748
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0

 
Related Commands

Command
Description

access-list

Configures a standard or extended numbered access list on the switch. For syntax information, select Cisco IOS IP Command Reference, Volume 1 of 3:Addressing and Services, Release 12.2 > IP Services Commands.

ip access list

Configures a named IP access list on the switch.

mac access-list extended

Configures a named or numbered MAC access list on the switch.

show archive status

Use the show archive status privileged EXEC command to display the status of a new image being downloaded to a switch with the HTTP or the TFTP protocol.

show archive status

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you use the archive download-sw privileged EXEC command to download an image to a TFTP server, the output of the archive download-sw command shows the status of the download.

If you do not have a TFTP server, you can use Network Assistant or the embedded device manager to download the image by using HTTP. The show archive status command shows the progress of the download.

Examples

These are examples of output from the show archive status command:

Switch# show archive status
IDLE: No upgrade in progress
 
Switch# show archive status
LOADING: Upgrade in progress
 
Switch# show archive status
EXTRACT: Extracting the image
 
Switch# show archive status
VERIFY: Verifying software
 
Switch# show archive status
RELOAD: Upgrade completed. Reload pending

 
Related Commands

Command
Description

archive download-sw

Downloads a new image from a TFTP server to the switch.

show arp access-list

Use the show arp access-list user EXEC command to display detailed information about Address Resolution Protocol (ARP) access control (lists).

show arp access-list [ acl-name ]

 
Syntax Description

acl-name

(Optional) Name of the ACL.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show arp access-list command:

Switch> show arp access-list
ARP access list rose
permit ip 10.101.1.1 0.0.0.255 mac any
permit ip 20.3.1.0 0.0.0.255 mac any

 
Related Commands

Command
Description

arp access-list

Defines an ARP ACL.

deny (ARP access-list configuration)

Denies an ARP packet based on matches against the Dynamic Host Configuration Protocol (DHCP) bindings.

ip arp inspection filter vlan

Permits ARP requests and responses from a host configured with a static IP address.

permit (ARP access-list configuration)

Permits an ARP packet based on matches against the DHCP bindings.

show authentication

Use the show authentication command (in either user EXEC or privileged EXEC mode) to display information about authentication manager events on the switch.

show authentication {interface interface-id | registrations | sessions [session-id session-id] [handle handle] [interface interface-id] [mac mac ] [method method ] | statistics [summary]}

 
Syntax Description

interface interface-id

(Optional) Display all of the authentication manager details for the specified interface.

method method

(Optional) Displays all clients authorized by a specified authentication method (dot1x, mab, or webauth)

registrations

(Optional) Display authentication manager registrations

sessions

(Optional) Display detail of the current authentication manager sessions (for example, client devices). If you do not enter any optional specifiers, all current active sessions are displayed. You can enter the specifiers singly or in combination to display a specific session (or group of sessions).

session-id session-id

(Optional) Specify an authentication manager session.

handle handle

(Optional) Specify a range from 1 to 4294967295.

mac mac

(Optional) Display authentication manager information for a specified MAC address.

statistics

(Optional) Display authentication statistics in detail.

summary

(Optional) Display authentication statistics summary.

 
Command Default

This command has no default settings.

 
Command Modes

Privileged EXEC and User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Table 2-25 describes the significant fields shown in the output of the show authentication command.

Note The possible values for the status of sessions are shown below. For a session in terminal state, Authz Success or Authz Failed is displayed along with No methods if no method has provided a result.

 

Table 2-25 show authentication Command Output

Field
Description

Idle

The session has been initialized and no methods have run yet.

Running

A method is running for this session.

No methods

No method has provided a result for this session.

Authc Success

A method has resulted in authentication success for this session.

Authc Failed

A method has resulted in authentication fail for this session.

Authz Success

All features have been successfully applied for this session.

Authz Failed

A feature has failed to be applied for this session.

Table 2-26 lists the possible values for the state of methods. For a session in a terminal state, Authc Success, Authc Failed, or Failed over are displayed. Failed over means that an authentication method ran and then failed over to the next method, which did not provide a result. Not run appears for sessions that synchronized on standby.

 

Table 2-26 State Method Values
Method State
State Level
Description

Not run

Terminal

The method has not run for this session.

Running

Intermediate

The method is running for this session.

Failed over

Terminal

The method has failed and the next method is expected to provide a result.

Authc Success

Terminal

The method has provided a successful authentication result for the session.

Authc Failed

Terminal

The method has provided a failed authentication result for the session.

The output of the show authentications sessions interface command shows fields for Security Policy and Security Status. These fields apply only if Media Access Control Security (MACsec) is supported and enabled.

Examples

This is an example the show authentication registrations command:

Switch# show authentication registrations
Auth Methods registered with the Auth Manager:
Handle Priority Name
3 0 dot1x
2 1 mab
1 2 webauth
 

The is an example of the show authentication interface interface-id command:

Switch# show authentication interface gigabitethernet1/23
Client list:
MAC Address Domain Status Handle Interface
000e.84af.59bd DATA Authz Success 0xE0000000 GigabitEthernet1/0/23
Available methods list:
Handle Priority Name
3 0 dot1x
Runnable methods list:
Handle Priority Name
3 0 dot1x
 

This is an example of the show authentication sessions command:

Switch# show authentication sessions
Interface MAC Address Method Domain Status Session ID
Gi3/45 (unknown) N/A DATA Authz Failed 0908140400000007003651EC
Gi3/46 (unknown) N/A DATA Authz Success 09081404000000080057C274
 

This is an example of the show authentication sessions command for a specified interface:

Switch# show authentication sessions int gi 3/46
Interface: GigabitEthernet3/46
MAC Address: Unknown
IP Address: Unknown
Status: Authz Success
Domain: DATA
Oper host mode: multi-host
Oper control dir: both
Authorized By: Guest Vlan
Vlan Policy: 4094
Session timeout: N/A
Idle timeout: N/A
Common Session ID: 09081404000000080057C274
Acct Session ID: 0x0000000A
Handle: 0xCC000008
Runnable methods list:
Method State
dot1x Failed over
 

This is an example of the show authentication sessions command for a specified MAC address:

Switch# show authentication sessions mac 000e.84af.59bd
Interface: GigabitEthernet1/23
MAC Address: 000e.84af.59bd
Status: Authz Success
Domain: DATA
Oper host mode: single-host
Authorized By: Authentication Server
Vlan Policy: 10
Handle: 0xE0000000
Runnable methods list:
Method State
dot1x Authc Success
 

This is an example of the show authentication session method command for a specified method:

Switch# show authentication sessions method mab
No Auth Manager contexts match supplied criteria
Switch# show authentication sessions method dot1x
MAC Address Domain Status Handle Interface
000e.84af.59bd DATA Authz Success 0xE0000000 GigabitEthernet1/23

 
Related Commands

Command
Description

authentication control-direction

Configures the port mode as unidirectional or bidirectional.

authentication event

Sets the action for specific authentication events.

authentication host-mode

Sets the authorization manager mode on a port.

authentication open

Enables or disable open access on a port.

authentication order

Sets the order of authentication methods used on a port.

authentication periodic

Enables or disables reauthentication on a port.

authentication port-control

Enables manual control of the port authorization state.

authentication priority

Adds an authentication method to the port-priority list.

authentication timer

Configures the timeout and reauthentication parameters for an 802.1x-enabled port.

authentication violation

Configures the violation modes that occur when a new device connects to a port or when a new device connects to a port after the maximum number of devices are connected to that port.

show auto qos

Use the show auto qos user EXEC command to display the quality of service (QoS) commands entered on the interfaces on which automatic QoS (auto-QoS) is enabled.

show auto qos [ interface [ interface-id ]]

 
Syntax Description

interface [ interface-id ]

(Optional) Display auto-QoS information for the specified port or for all ports. Valid interfaces include physical ports.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show auto qos command output shows only the auto-QoS command entered on each interface. The show auto qos interface interface-id command output shows the auto-QoS command entered on a specific interface.

Use the show running-config privileged EXEC command to display the auto-QoS configuration and the user modifications.

Beginning in Cisco IOS Release 12.2(40)SE, the show auto qos command output shows the service policy information for the Cisco IP phone.

To display information about the QoS configuration that might be affected by auto-QoS, use one of these commands:

  • show mls qos
  • show mls qos maps cos-dscp
  • show mls qos interface [ interface-id ] [ buffers | queueing ]
  • show mls qos maps [ cos-dscp | cos-input-q | cos-output-q | dscp-cos | dscp-input-q | dscp-output-q ]
  • show mls qos input-queue
  • show running-config

Examples

This is an example of output from the show auto qos command after the auto qos voip cisco-phone and the auto qos voip cisco-softphone interface configuration commands are entered:

Switch> show auto qos
GigabitEthernet2/0/4
auto qos voip cisco-softphone
 
GigabitEthernet2/0/5
auto qos voip cisco-phone
 
 
GigabitEthernet2/0/6
auto qos voip cisco-phone
 

This is an example of output from the show auto qos interface interface-id command when the auto qos voip cisco-phone interface configuration command is entered:

Switch> show auto qos interface gigabitethernet 2/0/5
GigabitEthernet2/0/5
auto qos voip cisco-phone
 

This is an example of output from the show running-config privileged EXEC command when the auto qos voip cisco-phone and the auto qos voip cisco-softphone interface configuration commands are entered:

Switch# show running-config
Building configuration...
...
mls qos map policed-dscp 24 26 46 to 0
mls qos map cos-dscp 0 8 16 26 32 46 48 56
mls qos srr-queue input bandwidth 90 10
mls qos srr-queue input threshold 1 8 16
mls qos srr-queue input threshold 2 34 66
mls qos srr-queue input buffers 67 33
mls qos srr-queue input cos-map queue 1 threshold 2 1
mls qos srr-queue input cos-map queue 1 threshold 3 0
mls qos srr-queue input cos-map queue 2 threshold 1 2
mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7
mls qos srr-queue input cos-map queue 2 threshold 3 3 5
mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7
mls qos srr-queue input dscp-map queue 1 threshold 3 32
mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23
mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48
mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56
mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63
mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 2 4
mls qos srr-queue output cos-map queue 4 threshold 2 1
mls qos srr-queue output cos-map queue 4 threshold 3 0
mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46 47
mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue output dscp-map queue 3 threshold 3 16 17 18 19 20 21 22 23
mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39
mls qos srr-queue output dscp-map queue 4 threshold 1 8
mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7
mls qos queue-set output 1 threshold 1 100 100 100 100
mls qos queue-set output 1 threshold 2 75 75 75 250
mls qos queue-set output 1 threshold 3 75 150 100 300
mls qos queue-set output 1 threshold 4 50 100 75 400
mls qos queue-set output 2 threshold 1 100 100 100 100
mls qos queue-set output 2 threshold 2 35 35 35 35
mls qos queue-set output 2 threshold 3 55 82 100 182
mls qos queue-set output 2 threshold 4 90 250 100 400
mls qos queue-set output 1 buffers 15 20 20 45
mls qos queue-set output 2 buffers 24 20 26 30
mls qos
...
!
class-map match-all AutoQoS-VoIP-RTP-Trust
match ip dscp ef
class-map match-all AutoQoS-VoIP-Control-Trust
match ip dscp cs3 af31
!
policy-map AutoQoS-Police-SoftPhone
class AutoQoS-VoIP-RTP-Trust
set dscp ef
police 320000 8000 exceed-action policed-dscp-transmit
class AutoQoS-VoIP-Control-Trust
set dscp cs3
police 32000 8000 exceed-action policed-dscp-transmit
!
policy-map AutoQoS-Police-CiscoPhone
class AutoQoS-VoIP-RTP-Trust
set dscp ef
police 320000 8000 exceed-action policed-dscp-transmit
class AutoQoS-VoIP-Control-Trust
set dscp cs3
police 32000 8000 exceed-action policed-dscp-transmit
...
!
interface GigabitEthernet2/0/4
switchport mode access
switchport port-security maximum 400
service-policy input AutoQoS-Police-SoftPhone
speed 100
duplex half
srr-queue bandwidth share 10 10 60 20
priority-queue out
auto qos voip cisco-softphone
!
interface GigabitEthernet2/0/5
switchport mode access
switchport port-security maximum 1999
speed 100
duplex full
srr-queue bandwidth share 10 10 60 20
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
!
interface GigabitEthernet2/0/6
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode access
speed 10
srr-queue bandwidth share 10 10 60 20
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
!
interface GigabitEthernet4/0/1
srr-queue bandwidth share 10 10 60 20
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
mls qos trust device cisco-phone
service-policy input AutoQoS-Police-CiscoPhone
 
<output truncated>
 

This is an example of output from the show auto qos interface interface-id command when the auto qos voip cisco-phone interface configuration command is entered:

Switch> show auto qos interface gigabitethernet1/0/2
GigabitEthernet1/0/2
auto qos voip cisco-phone
 

These are examples of output from the show auto qos command when auto-QoS is disabled on the switch:

Switch> show auto qos
AutoQoS not enabled on any interface
 

These are examples of output from the show auto qos i nterface interface-id command when auto-QoS is disabled on an interface:

Switch> show auto qos interface gigabitethernet3/0/1
AutoQoS is disabled

 
Related Commands

Command
Description

auto qos voip

Automatically configures QoS for VoIP within a QoS domain.

debug auto qos

Enables debugging of the auto-QoS feature.

show boot

Use the show boot privileged EXEC command to display the settings of the boot environment variables.

show boot

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show boot command for all stack members. Table 2-27 describes each field in the display. An example image_name is c3750x-universal-mz.122-53.SE2

Switch# show boot
BOOT path-list : flash:image_name.bin
Config file : flash:/config.text
Private Config file : flash:/private-config.text
Enable Break : no
Manual Boot : yes
HELPER path-list :
Auto upgrade : yes
Auto upgrade path :
-------------------
Switch 2
-------------------
BOOT path-list : flash:image_name.bin
Config file : flash:/config.text
Private Config file : flash:/private-config.text
Enable Break : no
Manual Boot : yes
HELPER path-list :
 
Auto upgrade : no
Auto upgrade path :
-------------------
<output truncated>

 

Table 2-27 show boot Field Descriptions
Field
Description

BOOT path-list

Displays a semicolon separated list of executable files to try to load and execute when automatically booting.

If the BOOT environment variable is not set, the system attempts to load and execute the first executable image it can find by using a recursive, depth-first search through the flash file system. In a depth-first search of a directory, each encountered subdirectory is completely searched before continuing the search in the original directory.

If the BOOT variable is set but the specified images cannot be loaded, the system attempts to boot the first bootable file that it can find in the flash file system.

Config file

Displays the filename that Cisco IOS uses to read and write a nonvolatile copy of the system configuration.

Private Config file

Displays the filename that Cisco IOS uses to read and write a nonvolatile copy of the system configuration.

Enable Break

Displays whether a break during booting is enabled or disabled. If it is set to yes, on, or 1, you can interrupt the automatic boot process by pressing the Break key on the console after the flash file system is initialized.

Manual Boot

Displays whether the switch automatically or manually boots. If it is set to no or 0, the boot loader attempts to automatically boot up the system. If it is set to anything else, you must manually boot up the switch from the boot loader mode.

Helper path-list

Displays a semicolon separated list of loadable files to dynamically load during the boot loader initialization. Helper files extend or patch the functionality of the boot loader.

Auto upgrade

In a switch stack, displays whether the switch stack is set to automatically copy its software version to an incompatible switch so that it can join the stack.

A switch in version-mismatch (VM) mode is a switch that has a different stack protocol version than the version on the switch stack. Switches in VM mode cannot join the switch stack. If the switch stack has an image that can be copied to a switch in VM mode, and if the boot auto-copy-sw feature is enabled, the switch stack automatically copies the image from another stack member to the switch in VM mode. The switch then exits VM mode, reboots, and joins the switch stack.

NVRAM/Config file buffer size

In a switch stack, displays the buffer size that Cisco IOS uses to hold a copy of the configuration file in memory. The configuration file cannot be larger than the buffer size allocation.

 
Related Commands

Command
Description

boot auto-copy-sw

Enables the automatic upgrade (auto-upgrade) process to automatically upgrade a switch in version-mismatch (VM) mode.

This command is available only on stacking-capable switches.

boot auto-download-sw

Specifies the software image to use in the auto-upgrade process.

This command is available only on stacking-capable switches.

boot config-file

Specifies the filename that Cisco IOS uses to read and write a nonvolatile copy of the system configuration.

boot enable-break

Enables interrupting the automatic boot process.

boot manual

Enables manually booting the switch during the next boot cycle.

boot private-config-file

Specifies the filename that Cisco IOS uses to read and write a nonvolatile copy of the private configuration.

boot system

Specifies the Cisco IOS image to load during the next boot cycle.

show cable-diagnostics tdr

Use the show cable-diagnostics tdr privileged EXEC command to display the Time Domain Reflector (TDR) results.

show cable-diagnostics tdr interface interface-id

 
Syntax Description

interface-id

Specify the interface on which TDR was run.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

TDR is supported only on 10/100/100 copper Ethernet ports. It is not supported on 10-Gigabit Ethernet ports and small form-factor pluggable (SFP) module ports. For more information about TDR, see the software configuration guide for this release.

Examples

This is an example of output from the show cable-diagnostics tdr interface interface-id command on a switch:

Switch# show cable-diagnostics tdr interface gigabitethernet1/0/23
TDR test last run on: March 01 00:04:08
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/23 1000M Pair A 1 +/- 1 meters Pair A Normal
Pair B 1 +/- 1 meters Pair B Normal
Pair C 1 +/- 1 meters Pair C Normal
Pair D 1 +/- 1 meters Pair D Normal
 

Table 2-28 lists the descriptions of the fields in the show cable-diagnostics tdr command output.

 

Table 2-28 Fields Descriptions for the show cable-diagnostics tdr Command Output

Field
Description

Interface

Interface on which TDR was run.

Speed

Speed of connection.

Local pair

Name of the pair of wires that TDR is testing on the local interface.

Pair length

Location on the cable where the problem is, with respect to your switch. TDR can only find the location in one of these cases:

  • The cable is properly connected, the link is up, and the interface speed is 1000 Mb/s.
  • The cable is open.
  • The cable has a short.

Remote pair

Name of the pair of wires to which the local pair is connected. TDR can learn about the remote pair only when the cable is properly connected and the link is up.

Pair status

The status of the pair of wires on which TDR is running:

  • Normal—The pair of wires is properly connected.
  • Not completed—The test is running and is not completed.
  • Not supported—The interface does not support TDR.
  • Open—The pair of wires is open.
  • Shorted—The pair of wires is shorted.
  • ImpedanceMis—The impedance is mismatched.
  • Short/Impedance Mismatched—The impedance mismatched or the cable is short.
  • InProgress—The diagnostic test is in progress
  • Fail—An unknown error occurred, and the test cannot provide results.

Note If the test reports fail status, you can try to change the link status by disconnecting and reconnecting the far end of the cable and running the test again. The cable diagnostic test is designed to provide information about a defective or broken cable. It cannot diagnose or report other issues.

This is an example of output from the show interface interface-id command when TDR is running:

Switch# show interface gigabitethernet1/0/2
gigabitethernet1/0/2 is up, line protocol is up (connected: TDR in Progress)
 

This is an example of output from the show cable-diagnostics tdr interface interface-id command when TDR is not running:

Switch# show cable-diagnostics tdr interface gigabitethernet1/0/2
% TDR test was never issued on Gi1/0/2
 

If an interface does not support TDR, this message appears:

% TDR test is not supported on switch 1

 
Related Commands

Command
Description

test cable-diagnostics tdr

Enables and runs TDR on an interface.

show cdp forward

To display the CDP forwarding table, use the show cdp forward user EXEC command.

show cdp forward [ entry | forward | interface interface-id | neighbor | traffic ]

Note This command is not supported on switches running the LAN base feature set.

 
Syntax Description

entry

(Optional) Displays information about a specific neighbor entry.

forward

(Optional) Displays the CDP forwarding information.

interface interface-id

(Optional) Displays the CDP interface status and configuration.

neighbor

(Optional) Displays the CDP neighbor entries.

traffic

(Optional) Displays the CDP statistics.

 
Command Modes

Use EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show cdp forward command output shows the number of CDP packets forwarded on each ingress-port- to-egress-port mapping and the statistics for forwarded and dropped packets.

Examples

Switch# show cdp forward
Ingress Egress # packets # packets
Port Port forwarded dropped
-------------------------------------------------------------
Gi2/0/2 Gi2/0/13 0 0

 
Related Commands

Command
Description

cdp forward

Configures the ingress and egress switch ports for CDP traffic.

show cisp

Use the show cisp privileged EXEC command to display CISP information for a specified interface.

show cisp { [ interface interface-id ] | clients | summary}

 
Syntax Description

clients

(Optional) Display CISP client details

interface interface-id

(Optional) Display CISP information about the specified interface. Valid interfaces include physical ports and port channels.

summary

(Optional) Display

 
Command Modes

Global configuration

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This example shows output from the show cisp interface command:

WS-C3750E-48TD#show cisp interface fast 0
CISP not enabled on specified interface
 

This example shows output from the show cisp summary command:

CISP is not running on any interface

 
Related Commands

Command
Description

dot1x credentials profile

Configure a profile on a supplicant switch

cisp enable

Enable Client Information Signalling Protocol (CISP)

show class-map

Use the show class-map user EXEC command to display quality of service (QoS) class maps, which define the match criteria to classify traffic.

show class-map [ class-map-name ]

 
Syntax Description

class-map-name

(Optional) Display the contents of the specified class map.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show class-map command:

Switch> show class-map
Class Map match-all videowizard_10-10-10-10 (id 2)
Match access-group name videowizard_10-10-10-10
 
Class Map match-any class-default (id 0)
Match any
Class Map match-all dscp5 (id 3)
Match ip dscp 5

 
Related Commands

Command
Description

class-map

Creates a class map to be used for matching packets to the class whose name you specify.

match (class-map configuration)

Defines the match criteria to classify traffic.

show cluster

Use the show cluster user EXEC command to display the cluster status and a summary of the cluster to which the switch belongs. This command can be entered on the cluster command switch and cluster member switches.

show cluster

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you enter this command on a switch that is not a cluster member, the error message Not a management cluster member appears.

On a cluster member switch, this command displays the identity of the cluster command switch, the switch member number, and the state of its connectivity with the cluster command switch.

On a cluster command switch stack or cluster command switch, this command displays the cluster name and the total number of members. It also shows the cluster status and time since the status changed. If redundancy is enabled, it displays the primary and secondary command-switch information.

Examples

This is an example of output when the show cluster command is entered on the active cluster command switch:

Switch> show cluster
Command switch for cluster “Ajang”
Total number of members: 7
Status: 1 members are unreachable
Time since last status change: 0 days, 0 hours, 2 minutes
Redundancy: Enabled
Standby command switch: Member 1
Standby Group: Ajang_standby
Standby Group Number: 110
Heartbeat interval: 8
Heartbeat hold-time: 80
Extended discovery hop count: 3
 

This is an example of output when the show cluster command is entered on a cluster member switch:

Switch1> show cluster
Member switch for cluster “hapuna”
Member number: 3
Management IP address: 192.192.192.192
Command switch mac address: 0000.0c07.ac14
Heartbeat interval: 8
Heartbeat hold-time: 80
 

This is an example of output when the show cluster command is entered on a cluster member switch that is configured as the standby cluster command switch:

Switch> show cluster
Member switch for cluster “hapuna”
Member number: 3 (Standby command switch)
Management IP address: 192.192.192.192
Command switch mac address: 0000.0c07.ac14
Heartbeat interval: 8
Heartbeat hold-time: 80
 

This is an example of output when the show cluster command is entered on the cluster command switch that has lost connectivity with member 1:

Switch> show cluster
Command switch for cluster “Ajang”
Total number of members: 7
Status: 1 members are unreachable
Time since last status change: 0 days, 0 hours, 5 minutes
Redundancy: Disabled
Heartbeat interval: 8
Heartbeat hold-time: 80
Extended discovery hop count: 3
 

This is an example of output when the show cluster command is entered on a cluster member switch that has lost connectivity with the cluster command switch:

Switch> show cluster
Member switch for cluster “hapuna”
Member number: <UNKNOWN>
Management IP address: 192.192.192.192
Command switch mac address: 0000.0c07.ac14
Heartbeat interval: 8
Heartbeat hold-time: 80

 
Related Commands

Command
Description

cluster enable

Enables a command-capable switch as the cluster command switch, assigns a cluster name, and optionally assigns a member number to it.

show cluster candidates

Displays a list of candidate switches.

show cluster members

Displays information about the cluster members.

show cluster candidates

Use the show cluster candidates privileged EXEC command on a switch stack or on a cluster command switch to display a list of candidate switches.

show cluster candidates [ detail | mac-address H.H.H. ]

 
Syntax Description

detail

(Optional) Display detailed information for all candidates.

mac-address H.H.H.

(Optional) MAC address of the cluster candidate.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This command is available only on the cluster command switch stack or cluster command switch.

If the switch is not a cluster command switch, the command displays an empty line at the prompt.

The SN in the display means switch member number. If E appears in the SN column, it means that the switch is discovered through extended discovery. If E does not appear in the SN column, it means that the switch member number is the upstream neighbor of the candidate switch. The hop count is the number of devices the candidate is from the cluster command switch.

Examples

This is an example of output from the show cluster candidates command:

Switch> show cluster candidates
|---Upstream---|
MAC Address Name Device Type PortIf FEC Hops SN PortIf FEC
00d0.7961.c4c0 StLouis-2 WS-C3750E-24TD Gi6/0/1 2 1 Fa0/11
00d0.bbf5.e900 ldf-dist-128 WS-C3524-XL Fa0/7 1 0 Fa0/24
00e0.1e7e.be80 1900_Switch 1900 3 0 1 0 Fa0/11
00e0.1e9f.7a00 Surfers-24 WS-C2924-XL Fa0/5 1 0 Fa0/3
00e0.1e9f.8c00 Surfers-12-2 WS-C2912-XL Fa0/4 1 0 Fa0/7
00e0.1e9f.8c40 Surfers-12-1 WS-C2912-XL Fa0/1 1 0 Fa0/9
 

This is an example of output from the show cluster candidates command that uses the MAC address of a cluster member switch directly connected to the cluster command switch:

Switch> show cluster candidates mac-address 00d0.7961.c4c0
Device 'Tahiti-12' with mac address number 00d0.7961.c4c0
Device type: cisco WS-C3750E-24TD-S
Upstream MAC address: 00d0.796d.2f00 (Cluster Member 0)
Local port: Gi6/0/1 FEC number:
Upstream port: GI6/0/11 FEC Number:
Hops from cluster edge: 1
Hops from command device: 1
 

This is an example of output from the show cluster candidates command that uses the MAC address of a cluster member switch three hops from the cluster edge:

Switch> show cluster candidates mac-address 0010.7bb6.1cc0
Device 'Ventura' with mac address number 0010.7bb6.1cc0
Device type: cisco WS-C2912MF-XL
Upstream MAC address: 0010.7bb6.1cd4
Local port: Fa2/1 FEC number:
Upstream port: Fa0/24 FEC Number:
Hops from cluster edge: 3
Hops from command device: -
 

This is an example of output from the show cluster candidates detail command:

Switch> show cluster candidates detail
Device 'Tahiti-12' with mac address number 00d0.7961.c4c0
Device type: cisco WS-C3512-XL
Upstream MAC address: 00d0.796d.2f00 (Cluster Member 1)
Local port: Fa0/3 FEC number:
Upstream port: Fa0/13 FEC Number:
Hops from cluster edge: 1
Hops from command device: 2
Device '1900_Switch' with mac address number 00e0.1e7e.be80
Device type: cisco 1900
Upstream MAC address: 00d0.796d.2f00 (Cluster Member 2)
Local port: 3 FEC number: 0
Upstream port: Fa0/11 FEC Number:
Hops from cluster edge: 1
Hops from command device: 2
Device 'Surfers-24' with mac address number 00e0.1e9f.7a00
Device type: cisco WS-C2924-XL
Upstream MAC address: 00d0.796d.2f00 (Cluster Member 3)
Local port: Fa0/5 FEC number:
Upstream port: Fa0/3 FEC Number:
Hops from cluster edge: 1
Hops from command device: 2

 
Related Commands

Command
Description

show cluster

Displays the cluster status and a summary of the cluster to which the switch belongs.

show cluster members

Displays information about the cluster members.

show cluster members

Use the show cluster members privileged EXEC command on a switch stack or on a cluster command switch to display information about the cluster members.

show cluster members [ n | detail ]

 
Syntax Description

n

(Optional) Number that identifies a cluster member. The range is 0 to 15.

detail

(Optional) Display detailed information for all cluster members.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This command is available only on the cluster command switch stack or cluster command switch.

If the cluster has no members, this command displays an empty line at the prompt.

Examples

This is an example of output from the show cluster members command. The SN in the display means switch number.

Switch# show cluster members
|---Upstream---|
SN MAC Address Name PortIf FEC Hops SN PortIf FEC State
0 0002.4b29.2e00 StLouis1 0 Up (Cmdr)
1 0030.946c.d740 tal-switch-1 Fa0/13 1 0 Gi0/1 Up
2 0002.b922.7180 nms-2820 10 0 2 1 Fa0/18 Up
3 0002.4b29.4400 SanJuan2 Gi0/1 2 1 Fa0/11 Up
4 0002.4b28.c480 GenieTest Gi0/2 2 1 Fa0/9 Up
 

This is an example of output from the show cluster members for cluster member 3:

Switch# show cluster members 3
Device 'SanJuan2' with member number 3
Device type: cisco WS-C3750E-24TD-S
MAC address: 0002.4b29.4400
Upstream MAC address: 0030.946c.d740 (Cluster member 1)
Local port: Gi6/0/1 FEC number:
Upstream port: GI6/0/11 FEC Number:
Hops from command device: 2
 

This is an example of output from the show cluster members detail command:

Switch# show cluster members detail
Device 'StLouis1' with member number 0 (Command Switch)
Device type: cisco WS-C3750E-24TD-S
MAC address: 0002.4b29.2e00
Upstream MAC address:
Local port: FEC number:
Upstream port: FEC Number:
Hops from command device: 0
Device 'tal-switch-14' with member number 1
Device type: cisco WS-C3548-XL
MAC address: 0030.946c.d740
Upstream MAC address: 0002.4b29.2e00 (Cluster member 0)
Local port: Fa0/13 FEC number:
Upstream port: Gi0/1 FEC Number:
Hops from command device: 1
Device 'nms-2820' with member number 2
Device type: cisco 2820
MAC address: 0002.b922.7180
Upstream MAC address: 0030.946c.d740 (Cluster member 1)
Local port: 10 FEC number: 0
Upstream port: Fa0/18 FEC Number:
Hops from command device: 2
Device 'SanJuan2' with member number 3
Device type: cisco WS-C3750E-24TD-S
MAC address: 0002.4b29.4400
Upstream MAC address: 0030.946c.d740 (Cluster member 1)
Local port: Gi6/0/1 FEC number:
Upstream port: Fa6/0/11 FEC Number:
Hops from command device: 2
Device 'GenieTest' with member number 4
Device type: cisco SeaHorse
MAC address: 0002.4b28.c480
Upstream MAC address: 0030.946c.d740 (Cluster member 1)
Local port: Gi0/2 FEC number:
Upstream port: Fa0/9 FEC Number:
Hops from command device: 2
Device 'Palpatine' with member number 5
Device type: cisco WS-C2924M-XL
MAC address: 00b0.6404.f8c0
Upstream MAC address: 0002.4b29.2e00 (Cluster member 0)
Local port: Gi2/1 FEC number:
Upstream port: Gi0/7 FEC Number:
Hops from command device: 1

 
Related Commands

Command
Description

show cluster

Displays the cluster status and a summary of the cluster to which the switch belongs.

show cluster candidates

Displays a list of candidate switches.

show controllers cpu-interface

Use the show controllers cpu-interface privileged EXEC command to display the state of the CPU network interface ASIC and the send and receive statistics for packets reaching the CPU.

show controllers cpu-interface

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This display provides information that might be useful for Cisco technical support representatives troubleshooting the switch.

Examples

This is a partial output example from the show controllers cpu-interface command:

Switch# show controllers cpu-interface
cpu-queue-frames retrieved dropped invalid hol-block
----------------- ---------- ---------- ---------- ----------
rpc 4523063 0 0 0
stp 1545035 0 0 0
ipc 1903047 0 0 0
routing protocol 96145 0 0 0
L2 protocol 79596 0 0 0
remote console 0 0 0 0
sw forwarding 5756 0 0 0
host 225646 0 0 0
broadcast 46472 0 0 0
cbt-to-spt 0 0 0 0
igmp snooping 68411 0 0 0
icmp 0 0 0 0
logging 0 0 0 0
rpf-fail 0 0 0 0
queue14 0 0 0 0
cpu heartbeat 1710501 0 0 0
 
Supervisor ASIC receive-queue parameters
----------------------------------------
queue 0 maxrecevsize 5EE pakhead 1419A20 paktail 13EAED4
queue 1 maxrecevsize 5EE pakhead 15828E0 paktail 157FBFC
queue 2 maxrecevsize 5EE pakhead 1470D40 paktail 1470FE4
queue 3 maxrecevsize 5EE pakhead 19CDDD0 paktail 19D02C8
 
<output truncated>
 
Supervisor ASIC Mic Registers
------------------------------
MicDirectPollInfo 80000800
MicIndicationsReceived 00000000
MicInterruptsReceived 00000000
MicPcsInfo 0001001F
MicPlbMasterConfiguration 00000000
MicRxFifosAvailable 00000000
MicRxFifosReady 0000BFFF
MicTimeOutPeriod: FrameTOPeriod: 00000EA6 DirectTOPeriod: 00004000
 
<output truncated>
 
MicTransmitFifoInfo:
Fifo0: StartPtrs: 038C2800 ReadPtr: 038C2C38
WritePtrs: 038C2C38 Fifo_Flag: 8A800800
Weights: 001E001E
Fifo1: StartPtr: 03A9BC00 ReadPtr: 03A9BC60
WritePtrs: 03A9BC60 Fifo_Flag: 89800400
writeHeaderPtr: 03A9BC60
Fifo2: StartPtr: 038C8800 ReadPtr: 038C88E0
WritePtrs: 038C88E0 Fifo_Flag: 88800200
writeHeaderPtr: 038C88E0
Fifo3: StartPtr: 03C30400 ReadPtr: 03C30638
WritePtrs: 03C30638 Fifo_Flag: 89800400
writeHeaderPtr: 03C30638
Fifo4: StartPtr: 03AD5000 ReadPtr: 03AD50A0
WritePtrs: 03AD50A0 Fifo_Flag: 89800400
writeHeaderPtr: 03AD50A0
Fifo5: StartPtr: 03A7A600 ReadPtr: 03A7A600
WritePtrs: 03A7A600 Fifo_Flag: 88800200
writeHeaderPtr: 03A7A600
Fifo6: StartPtr: 03BF8400 ReadPtr: 03BF87F0
WritePtrs: 03BF87F0 Fifo_Flag: 89800400
 
<output truncated>

 
Related Commands

Command
Description

show controllers ethernet-controller

Displays per-interface send and receive statistics read from the hardware or the interface internal registers.

show interfaces

Displays the administrative and operational status of all interfaces or a specified interface.

show controllers ethernet-controller

Use the show controllers ethernet-controller privileged EXEC command without keywords to display per-interface send and receive statistics read from the hardware. Use with the phy keyword to display the interface internal registers or the port-asic keyword to display information about the port ASIC.

show controllers ethernet-controller [ interface-id ] [ phy [ detail ]] [ port-asic { configuration | statistics }]

 
Syntax Description

interface-id

The physical interface (including type, stack member [stack-capable switches], module, and port number).

phy

(Optional) Display the status of the internal registers on the switch physical layer device (PHY) for the device or the interface. This display includes the operational state of the automatic medium-dependent interface crossover (auto-MDIX) feature on an interface.

detail

(Optional) Display details about the PHY internal registers.

port-asic

(Optional) Display information about the port ASIC internal registers.

configuration

Display port ASIC internal register configuration.

statistics

Display port ASIC statistics, including the Rx/Sup Queue and miscellaneous statistics.

 
Command Modes

Privileged EXEC (only supported with the interface-id keywords in user EXEC mode)

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This display without keywords provides traffic statistics, basically the RMON statistics for all interfaces or for the specified interface.

When you enter the phy or port-asic keywords, the displayed information is useful primarily for Cisco technical support representatives troubleshooting the switch.

Examples

This is an example of output from the show controllers ethernet-controller command for an interface. Table 2-29 describes the Transmit fields, and Table 2-30 describes the Receive fields.

Switch# show controllers ethernet-controller gigabitethernet6/0/1
Transmit GigabitEthernet6/0/1 Receive
0 Bytes 0 Bytes
0 Unicast frames 0 Unicast frames
0 Multicast frames 0 Multicast frames
0 Broadcast frames 0 Broadcast frames
0 Too old frames 0 Unicast bytes
0 Deferred frames 0 Multicast bytes
0 MTU exceeded frames 0 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 0 Minimum size frames
0 8 collision frames 0 65 to 127 byte frames
0 9 collision frames 0 128 to 255 byte frames
0 10 collision frames 0 256 to 511 byte frames
0 11 collision frames 0 512 to 1023 byte frames
0 12 collision frames 0 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames 0 Symbol error frames
0 Excessive collisions
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 0 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
0 64 byte frames 0 Valid frames, too small
0 127 byte frames
0 255 byte frames 0 Too old frames
0 511 byte frames 0 Valid oversize frames
0 1023 byte frames 0 System FCS error frames
0 1518 byte frames 0 RxPortFifoFull drop frame
0 Too large frames
0 Good (1 coll) frames
 

 

Table 2-29 Transmit Field Descriptions

Field
Description

Bytes

The total number of bytes sent on an interface.

Unicast Frames

The total number of frames sent to unicast addresses.

Multicast frames

The total number of frames sent to multicast addresses.

Broadcast frames

The total number of frames sent to broadcast addresses.

Too old frames

The number of frames dropped on the egress port because the packet aged out.

Deferred frames

The number of frames that are not sent after the time exceeds 2*maximum-packet time.

MTU exceeded frames

The number of frames that are larger than the maximum allowed frame size.

1 collision frames

The number of frames that are successfully sent on an interface after one collision occurs.

2 collision frames

The number of frames that are successfully sent on an interface after two collisions occur.

3 collision frames

The number of frames that are successfully sent on an interface after three collisions occur.

4 collision frames

The number of frames that are successfully sent on an interface after four collisions occur.

5 collision frames

The number of frames that are successfully sent on an interface after five collisions occur.

6 collision frames

The number of frames that are successfully sent on an interface after six collisions occur.

7 collision frames

The number of frames that are successfully sent on an interface after seven collisions occur.

8 collision frames

The number of frames that are successfully sent on an interface after eight collisions occur.

9 collision frames

The number of frames that are successfully sent on an interface after nine collisions occur.

10 collision frames

The number of frames that are successfully sent on an interface after ten collisions occur.

11 collision frames

The number of frames that are successfully sent on an interface after 11 collisions occur.

12 collision frames

The number of frames that are successfully sent on an interface after 12 collisions occur.

13 collision frames

The number of frames that are successfully sent on an interface after 13 collisions occur.

14 collision frames

The number of frames that are successfully sent on an interface after 14 collisions occur.

15 collision frames

The number of frames that are successfully sent on an interface after 15 collisions occur.

Excessive collisions

The number of frames that could not be sent on an interface after 16 collisions occur.

Late collisions

After a frame is sent, the number of frames dropped because late collisions were detected while the frame was sent.

VLAN discard frames

The number of frames dropped on an interface because the CFI1 bit is set.

Excess defer frames

The number of frames that are not sent after the time exceeds the maximum-packet time.

64 byte frames

The total number of frames sent on an interface that are 64 bytes.

127 byte frames

The total number of frames sent on an interface that are from 65 to 127 bytes.

255 byte frames

The total number of frames sent on an interface that are from 128 to 255 bytes.

511 byte frames

The total number of frames sent on an interface that are from 256 to 511 bytes.

1023 byte frames

The total number of frames sent on an interface that are from 512 to 1023 bytes.

1518 byte frames

The total number of frames sent on an interface that are from 1024 to 1518 bytes.

Too large frames

The number of frames sent on an interface that are larger than the maximum allowed frame size.

Good (1 coll) frames

The number of frames that are successfully sent on an interface after one collision occurs. This value does not include the number of frames that are not successfully sent after one collision occurs.

1.CFI = Canonical Format Indicator

 

Table 2-30 Receive Field Descriptions

Field
Description

Bytes

The total amount of memory (in bytes) used by frames received on an interface, including the FCS2 value and the incorrectly formed frames. This value excludes the frame header bits.

Unicast frames

The total number of frames successfully received on the interface that are directed to unicast addresses.

Multicast frames

The total number of frames successfully received on the interface that are directed to multicast addresses.

Broadcast frames

The total number of frames successfully received on an interface that are directed to broadcast addresses.

Unicast bytes

The total amount of memory (in bytes) used by unicast frames received on an interface, including the FCS value and the incorrectly formed frames. This value excludes the frame header bits.

Multicast bytes

The total amount of memory (in bytes) used by multicast frames received on an interface, including the FCS value and the incorrectly formed frames. This value excludes the frame header bits.

Broadcast bytes

The total amount of memory (in bytes) used by broadcast frames received on an interface, including the FCS value and the incorrectly formed frames. This value excludes the frame header bits.

Alignment errors

The total number of frames received on an interface that have alignment errors.

FCS errors

The total number of frames received on an interface that have a valid length (in bytes) but do not have the correct FCS values.

Oversize frames

The number of frames received on an interface that are larger than the maximum allowed frame size.

Undersize frames

The number of frames received on an interface that are smaller than 64 bytes.

Collision fragments

The number of collision fragments received on an interface.

Minimum size frames

The total number of frames that are the minimum frame size.

65 to 127 byte frames

The total number of frames that are from 65 to 127 bytes.

128 to 255 byte frames

The total number of frames that are from 128 to 255 bytes.

256 to 511 byte frames

The total number of frames that are from 256 to 511 bytes.

512 to 1023 byte frames

The total number of frames that are from 512 to 1023 bytes.

1024 to 1518 byte frames

The total number of frames that are from 1024 to 1518 bytes.

Overrun frames

The total number of overrun frames received on an interface.

Pause frames

The number of pause frames received on an interface.

Symbol error frames

The number of frames received on an interface that have symbol errors.

Invalid frames, too large

The number of frames received that were larger than maximum allowed MTU3 size (including the FCS bits and excluding the frame header) and that have either an FCS error or an alignment error.

Valid frames, too large

The number of frames received on an interface that are larger than the maximum allowed frame size.

Invalid frames, too small

The number of frames received that are smaller than 64 bytes (including the FCS bits and excluding the frame header) and that have either an FCS error or an alignment error.

Valid frames, too small

The number of frames received on an interface that are smaller than 64 bytes (or 68 bytes for VLAN-tagged frames) and that have valid FCS values. The frame size includes the FCS bits but excludes the frame header bits.

Too old frames

The number of frames dropped on the ingress port because the packet aged out.

Valid oversize frames

The number of frames received on an interface that are larger than the maximum allowed frame size and have valid FCS values. The frame size includes the FCS value but does not include the VLAN tag.

System FCS error frames

The total number of frames received on an interface that have a valid length (in bytes) but that do not have the correct FCS values.

RxPortFifoFull drop frames

The total number of frames received on an interface that are dropped because the ingress queue is full.

2.FCS = frame check sequence

3.MTU = maximum transmission unit

This is an example of output from the show controllers ethernet-controller phy command for a specific interface:

Switch# show controllers ethernet-controller gigabitethernet1/0/2 phy
Control Register : 0001 0001 0100 0000
Control STATUS : 0111 1001 0100 1001
Phy ID 1 : 0000 0001 0100 0001
Phy ID 2 : 0000 1100 0010 0100
Auto-Negotiation Advertisement : 0000 0011 1110 0001
Auto-Negotiation Link Partner : 0000 0000 0000 0000
Auto-Negotiation Expansion Reg : 0000 0000 0000 0100
Next Page Transmit Register : 0010 0000 0000 0001
Link Partner Next page Registe : 0000 0000 0000 0000
1000BASE-T Control Register : 0000 1111 0000 0000
1000BASE-T Status Register : 0100 0000 0000 0000
Extended Status Register : 0011 0000 0000 0000
PHY Specific Control Register : 0000 0000 0111 1000
PHY Specific Status Register : 1000 0001 0100 0000
Interrupt Enable : 0000 0000 0000 0000
Interrupt Status : 0000 0000 0100 0000
Extended PHY Specific Control : 0000 1100 0110 1000
Receive Error Counter : 0000 0000 0000 0000
Reserved Register 1 : 0000 0000 0000 0000
Global Status : 0000 0000 0000 0000
LED Control : 0100 0001 0000 0000
Manual LED Override : 0000 1000 0010 1010
Extended PHY Specific Control : 0000 0000 0001 1010
Disable Receiver 1 : 0000 0000 0000 1011
Disable Receiver 2 : 1000 0000 0000 0100
Extended PHY Specific Status : 1000 0100 1000 0000
Auto-MDIX : On [AdminState=1 Flags=0x00052248]
 

This is an example of output from the show controllers ethernet-controller tengigabitethernet1/0/1 phy command:

Switch# show controllers ethernet-controller tengigabitethernet1/0/1 phy
TenGigabitEthernet1/0/1 (gpn: 29, port-number: 1)
-----------------------------------------------------------
X2 Serial EEPROM Contents:
Non-Volatile Register (NVR) Fields
X2 MSA Version supported :0x1E
NVR Size in bytes :0x100
Number of bytes used :0x100
Basic Field Address :0xB
Customer Field Address :0x77
Vendor Field Address :0xA7
Extended Vendor Field Address :0x100
Reserved :0x0
Transceiver type :0x2 =X2
Optical connector type :0x1 =SC
Bit encoding:0x1 =NRZ
Normal BitRate in multiple of 1M b/s :0x2848
Protocol Type:0x1 =10GgE
Standards Compliance Codes :
10GbE Code Byte 0 :0x4 =10GBASE-ER
10GbE Code Byte 1 :0x0
SONET/SDH Code Byte 0:0x0
SONET/SDH Code Byte 1:0x0
SONET/SDH Code Byte 2:0x0
SONET/SDH Code Byte 3:0x0
10GFC Code Byte 0 :0x0
10GFC Code Byte 1 :0x0
10GFC Code Byte 2 :0x0
10GFC Code Byte 3 :0x0
Transmission range in10m :0xFA0
Fibre Type :
Fibre Type Byte 0 :0x20 =SM, Generic
Fibre Type Byte 1 :0x0 =Unspecified
<output truncated>
 

This is an example of output from the show controllers ethernet-controller port-asic configuration command:

Switch# show controllers ethernet-controller port-asic configuration
========================================================================
Switch 1, PortASIC 0 Registers
------------------------------------------------------------------------
DeviceType : 000101BC
Reset : 00000000
PmadMicConfig : 00000001
PmadMicDiag : 00000003
SupervisorReceiveFifoSramInfo : 000007D0 000007D0 40000000
SupervisorTransmitFifoSramInfo : 000001D0 000001D0 40000000
GlobalStatus : 00000800
IndicationStatus : 00000000
IndicationStatusMask : FFFFFFFF
InterruptStatus : 00000000
InterruptStatusMask : 01FFE800
SupervisorDiag : 00000000
SupervisorFrameSizeLimit : 000007C8
SupervisorBroadcast : 000A0F01
GeneralIO : 000003F9 00000000 00000004
StackPcsInfo : FFFF1000 860329BD 5555FFFF FFFFFFFF
FF0FFF00 86020000 5555FFFF 00000000
StackRacInfo : 73001630 00000003 7F001644 00000003
24140003 FD632B00 18E418E0 FFFFFFFF
StackControlStatus : 18E418E0
stackControlStatusMask : FFFFFFFF
TransmitBufferFreeListInfo : 00000854 00000800 00000FF8 00000000
0000088A 0000085D 00000FF8 00000000
TransmitRingFifoInfo : 00000016 00000016 40000000 00000000
0000000C 0000000C 40000000 00000000
TransmitBufferInfo : 00012000 00000FFF 00000000 00000030
TransmitBufferCommonCount : 00000F7A
TransmitBufferCommonCountPeak : 0000001E
TransmitBufferCommonCommonEmpty : 000000FF
NetworkActivity : 00000000 00000000 00000000 02400000
DroppedStatistics : 00000000
FrameLengthDeltaSelect : 00000001
SneakPortFifoInfo : 00000000
MacInfo : 0EC0801C 00000001 0EC0801B 00000001
00C0001D 00000001 00C0001E 00000001
 
<output truncated>
 

This is an example of output from the show controllers ethernet-controller port-asic statistics command:

Switch# show controllers ethernet-controller port-asic statistics
===========================================================================
Switch 1, PortASIC 0 Statistics
---------------------------------------------------------------------------
0 RxQ-0, wt-0 enqueue frames 0 RxQ-0, wt-0 drop frames
4118966 RxQ-0, wt-1 enqueue frames 0 RxQ-0, wt-1 drop frames
0 RxQ-0, wt-2 enqueue frames 0 RxQ-0, wt-2 drop frames
 
0 RxQ-1, wt-0 enqueue frames 0 RxQ-1, wt-0 drop frames
296 RxQ-1, wt-1 enqueue frames 0 RxQ-1, wt-1 drop frames
2836036 RxQ-1, wt-2 enqueue frames 0 RxQ-1, wt-2 drop frames
 
0 RxQ-2, wt-0 enqueue frames 0 RxQ-2, wt-0 drop frames
0 RxQ-2, wt-1 enqueue frames 0 RxQ-2, wt-1 drop frames
158377 RxQ-2, wt-2 enqueue frames 0 RxQ-2, wt-2 drop frames
 
0 RxQ-3, wt-0 enqueue frames 0 RxQ-3, wt-0 drop frames
0 RxQ-3, wt-1 enqueue frames 0 RxQ-3, wt-1 drop frames
0 RxQ-3, wt-2 enqueue frames 0 RxQ-3, wt-2 drop frames
 
 
15 TxBufferFull Drop Count 0 Rx Fcs Error Frames
0 TxBufferFrameDesc BadCrc16 0 Rx Invalid Oversize Frames
0 TxBuffer Bandwidth Drop Cou 0 Rx Invalid Too Large Frames
0 TxQueue Bandwidth Drop Coun 0 Rx Invalid Too Large Frames
0 TxQueue Missed Drop Statist 0 Rx Invalid Too Small Frames
74 RxBuffer Drop DestIndex Cou 0 Rx Too Old Frames
0 SneakQueue Drop Count 0 Tx Too Old Frames
0 Learning Queue Overflow Fra 0 System Fcs Error Frames
0 Learning Cam Skip Count
 
15 Sup Queue 0 Drop Frames 0 Sup Queue 8 Drop Frames
0 Sup Queue 1 Drop Frames 0 Sup Queue 9 Drop Frames
0 Sup Queue 2 Drop Frames 0 Sup Queue 10 Drop Frames
0 Sup Queue 3 Drop Frames 0 Sup Queue 11 Drop Frames
0 Sup Queue 4 Drop Frames 0 Sup Queue 12 Drop Frames
0 Sup Queue 5 Drop Frames 0 Sup Queue 13 Drop Frames
0 Sup Queue 6 Drop Frames 0 Sup Queue 14 Drop Frames
0 Sup Queue 7 Drop Frames 0 Sup Queue 15 Drop Frames
===========================================================================
Switch 1, PortASIC 1 Statistics
---------------------------------------------------------------------------
0 RxQ-0, wt-0 enqueue frames 0 RxQ-0, wt-0 drop frames
52 RxQ-0, wt-1 enqueue frames 0 RxQ-0, wt-1 drop frames
0 RxQ-0, wt-2 enqueue frames 0 RxQ-0, wt-2 drop frames
 
<output truncated>

 
Related Commands

Command
Description

show controllers cpu-interface

Displays the state of the CPU network ASIC and send and receive statistics for packets reaching the CPU.

show controllers tcam

Displays the state of registers for all hardware memory in the system and for hardware interface ASICs that are content addressable memory controllers.

show idprom interface

Displays the IDPROM information for the specified interface.

show controllers ethernet-controller fastethernet

Use the show controllers ethernet-controller fastethernet privileged EXEC command to display information about the Ethernet management port, including the port status and the per-interface send and receive statistics read from the hardware.

show controllers ethernet-controller fastethernet 0 [ phy [ detail ] | stack ]

 
Syntax Description

phy [ detail ]

(Optional) Display the status of the internal registers on the switch physical layer device (PHY) for the Ethernet management port on the switch when the command is entered on a standalone switch.

Display the status of the internal registers on the switch PHYs for all the Ethernet management ports in the switch stack when the command is entered on a stack master or member switch in a mixed stack. The port information appears only for the Catalyst 3750-E or Catalyst 3750-X switches in the stack.

Use the detail keyword to display details about the PHY internal registers.

This display includes the operational state of the automatic medium-dependent interface crossover (auto-MDIX) feature on an interface.

stack

(Optional) Display the speed, duplex mode, and link states of the Ethernet management ports in the switch stack when the command is entered on a stack master or member switch in a stack. The port information appears only for the Catalyst 3750-E or Catalyst 3750-X switches in the stack.

 
Command Modes

Privileged EXEC (only supported with the fastethernet 0 keywords in user EXEC mode)

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The output display provides information that might be useful for Cisco technical support representatives troubleshooting the switch.

Examples

This is an example of output from the show controllers ethernet-controller fastethernet 0 command. See Table 2-29 and Table 2-30 for descriptions of the Transmit and Receive fields.

Switch> show controller ethernet-controller fastethernet 0
Transmit FastEthernet0 Receive
5925 Bytes 33181 Bytes
0 Unicast frames 78 Unicast frames
15 Multicast frames 437 Multicast frames
1 Broadcast frames 0 Broadcast frames
0 Too old frames 0 Unicast bytes
0 Deferred frames 0 Multicast bytes
0 MTU exceeded frames 0 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 0 Minimum size frames
0 8 collision frames 0 65 to 127 byte frames
0 9 collision frames 0 128 to 255 byte frames
0 10 collision frames 0 256 to 511 byte frames
0 11 collision frames 0 512 to 1023 byte frames
0 12 collision frames 0 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 0 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
0 64 byte frames 0 Valid frames, too small
0 127 byte frames
0 255 byte frames 0 Too old frames
0 511 byte frames 0 Valid oversize frames
0 1023 byte frames 0 System FCS error frames
0 1518 byte frames 0 RxPortFifoFull drop frame
0 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames
 

This is an example of output from the show controllers ethernet-controller fastethernet 0 phy command on a switch:

Switch# show controller ethernet-controller fastethernet 0 phy
FastEthernet0
-----------------------------------------------------------
hw_if_index = 2 if_number = 2
PowerPC405 FastEthernet unit 0
PHY Hardware is Broadcom BCM5220 rev. 4 (id_register: 0x40, 0x61E4)
 
rx_intr: 0 tx_intr: 0 mac_err_isr: 0 phy_link_isr:0
Current station address 00d0.2bfd.d737, default address 00d0.2bfd.d737
MAL register dump:
malcr 0x00004082 0x100
malesr 0x00000000 0x101
malier 0x00000000 0x102
maltxcasr 0x80000000 0x104
maltxcarr 0x80000000 0x105
maltxeobisr 0x80000000 0x106
maltxdeir 0x00000000 0x107
malrxcasr 0x80000000 0x110
malrxcarr 0x80000000 0x111
malrxeobisr 0x80000000 0x112
malrxdeir 0x00000000 0x113
maltxctp0r 0x0F027880 0x120
malrxctp0r 0x0F0272C0 0x140
malrcbs0 0x00000060 0x160
<output truncated>
 

This is an example of output from the show controllers ethernet-controller fastethernet 0 stack command on a stack member:

Switch# show controller ethernet-controller fastethernet 0 stack
Switch Interface-Name Duplex Speed Link-State Active-Link
-------------------------------------------------------------------
3 Fa0 a-full a-100 up
3 Fa0-Physical a-full a-100 up *

 
Related Commands

Command
Description

debug fastethernet

Enables debugging of the Ethernet management port.

show controllers ethernet phy macsec

Use the show controllers ethernet phy macsec privileged EXEC command to display the internal Media Access Control Security (MACsec) counters or registers on the switch or the specified interface.

show controllers ethernet [ interface-id ] phy macsec { counters | registers }

 
Syntax Description

interface-id

(Optional) The physical interface.

counters

Displays the status of the internal counters on the switch physical layer device (PHY) for the device or the interface.

registers

Displays the status of the internal registers on the switch PHY for the device or the interface.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The displayed information is useful s for Cisco technical support representatives troubleshooting the switch.

Examples

This is an example output from the show controllers ethernet phy macsec counters command:

Switch# show controllers ethernet g1/0/1 phy macsec counters
GigabitEthernet1/0/1 (gpn: 1, port-number: 1)
-----------------------------------------------------------
 
========== Active RX SA ==========
ILU Entry : 1
SCI : 0x1B2140EC4C0000
AN : 0x0000
NextPN : 0x0013
Decrypt Key : 0x1E902BE3AF08549BAC995474C5F55526
 
---------- RX SA Stats ----------
IGR_HIT : 0xE
IGR_OK : 0xE
IGR_UNCHK : 0x0
IGR_DELAY : 0x0
IGR_LATE : 0x0
IGR_INVLD : 0x0
IGR_NOTVLD : 0x0
 
========== Active TX SA ==========
ELU Entry : 2
SCI : 0x22BDCF9A010002
AN : 0x0000
NextPN : 0x0022
Encrypt Key : 0x1E902BE3AF08549BAC995474C5F55526
 
---------- TX SA Stats ----------
EGR_HIT : 0x682
EGR_PKT_PROT : 0x0
EGR_PKT_ENC : 0x682
 
========== Port Stats ==========
IGR_UNTAG : 0x0
IGR_NOTAG : 0x57B
IGR_BADTAG : 0x0
IGR_UNKSCI : 0x0
IGR_MISS : 0x52B
00-10-18, 03-06, 01-02
 

This is an example output from the show controllers ethernet phy macsec registers command:

Switch# show controllers ethernet g1/0/1 phy macsec registers
GigabitEthernet1/0/1 (gpn: 1, port-number: 1)
-----------------------------------------------------------
 
Macsec Registers
-----------------------------------------------------------
0000: 88E58100 Ethertypes Register
0001: 00400030 Sizes Register
0002: 00000010 Cfg Default Vlan
0003: 00000000 Reset Control Register
0007: 00000001 Port Number Register
0009: 0000100C EGR Gen Register
000B: 2FB40000 IGR Gen Register
000E: 00000000 Replay Window Register
0010: 00000047 ISC Gen Register
001C: 00000000 LC Interrupt Register
001D: 0000003A LC Interrupt Mask Register
001E: 00000000 FIPS Control Register
001F: 00000F0F ET Match Control Register
0030: 888E8808 ET Match 0 Register
0031: 88CC8809 ET Match 1 Register
0032: 00000000 ET Match 2 Register
0033: 00000000 ET Match 3 Register
0040: 00019C49 Wire Mac Control 0 Register
0041: 000200C1 Wire Mac Control 1 Register
0042: 00000008 Wire Mac Control 2 Register
0043: 00000020 Wire Mac Autneg Control Regist
0047: 0007FE43 Wire Mac Hidden0 Register
0050: 00009FC9 Sys Mac Control 0 Register
0051: 000100B1 Sys Mac Control 1 Register
0052: 00000000 Sys Mac Control 2 Register
0053: 00000030 Sys Mac Autneg Control Registe
0057: 0007FE43 Sys Mac Hidden0 Register
0070: 00000040 SLC Cfg Gen Register
0074: 00000004 Pause Control Register
0076: 00002006 SLC Ram Control Register
0060: 00000004 CiscoIP Enable Register
00-10-18, 03-06, 01-02

 
Related Commands

Command
Description

debug macsec

Enables MACsec debugging.

show macsec

Displays MACsec information.

show controllers power inline

Use the show controllers power inline user EXEC command to display the values in the registers of the specified Power over Ethernet (PoE) controller.

show controllers power inline [ instance ] [ module switch-number ]

 
Syntax Description

instance

(Optional) Power controller instance, where each instance corresponds to four ports. The possible range is 0 to 11, depending on the number of ports.

module switch number

(Optional) Limit the display to ports on the specified stack member. The switch number is 1 to 9.

This keyword is available only on stacking-capable switches.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Though visible on all switches, this command is valid only for PoE switches. It provides no information for switches that do not support PoE.

The output provides information that might be useful for Cisco technical support representatives troubleshooting the switch.

Examples

This is an example of output from the show controllers power inline command:

Switch> show controllers power inline
 
Alchemy instance 0, address 0
 
Pending event flag : N N N N N N N N N N N N N N N N
Current State : 11 55 55 55 55 55 55 55
Current Event : 00 11 11 11 11 11 11 11
Timers : 1A 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Error State : 00 00 00 00 00 00 00 00
Error Code : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Power Status : N N Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Auto Config : Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Disconnect : N N N N N N N N N N N N N N N N
Detection Status : 55 55 55 55 55 55 55 55
Current Class : 00 44 44 44 44 44 44 44
Tweetie debug : 00 00 00 00
POE Commands pending at sub:
Command 0 on each port : 00 00 00 00 00 00 00 00
Command 1 on each port : 00 00 00 00 00 00 00 00
Command 2 on each port : 00 00 00 00 00 00 00 00
Command 3 on each port : 00 00 00 00 00 00 00 00
Alchemy instance 1, address 7
 
Pending event flag : N N N N N N N N N N N N N N N N
Current State : 55 55 55 55 55 55 66 55
Current Event : 11 11 11 11 11 11 44 11
Timers : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Error State : 00 00 00 00 00 00 11 00
Error Code : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Power Status : Y Y Y Y Y Y Y Y Y Y Y Y N N Y Y
Auto Config : Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Disconnect : N N N N N N N N N N N N N N N N
Detection Status : 55 55 55 55 55 55 55 55
Current Class : 44 44 44 44 44 44 00 44
Tweetie debug : 00 00 00 00
POE Commands pending at sub:
Command 0 on each port : 00 00 00 00 00 00 00 00
Command 1 on each port : 00 00 00 00 00 00 00 00
Command 2 on each port : 00 00 00 00 00 00 00 00
Command 3 on each port : 00 00 00 00 00 00 00 00
 
<output truncated>

 
Related Commands

Command
Description

logging event power-inline-status

Enables the logging of PoE events.

power inline

Configures the power management mode for the specified PoE port or for all PoE ports.

show power inline

Displays the PoE status for the specified PoE port or for all PoE ports.

show controllers tcam

Use the show controllers tcam privileged EXEC command to display the state of the registers for all hardware memory in the system and for all hardware interface ASICs that are content-addressable memory-controllers.

show controllers tcam [ asic [ number ]] [ detail ]

 
Syntax Description

asic

(Optional) Display port ASIC hardware information.

number

(Optional) Display information for the specified port ASIC number. The range is from 0 to 15.

detail

(Optional) Display detailed hardware register information.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This display provides information that might be useful for Cisco technical support representatives troubleshooting the switch.

Examples

This is an example of output from the show controllers tcam command:

Switch# show controllers tcam
------------------------------------------------------------------------
TCAM-0 Registers
------------------------------------------------------------------------
REV: 00B30103
SIZE: 00080040
ID: 00000000
CCR: 00000000_F0000020
 
RPID0: 00000000_00000000
RPID1: 00000000_00000000
RPID2: 00000000_00000000
RPID3: 00000000_00000000
 
HRR0: 00000000_E000CAFC
HRR1: 00000000_00000000
HRR2: 00000000_00000000
HRR3: 00000000_00000000
HRR4: 00000000_00000000
HRR5: 00000000_00000000
HRR6: 00000000_00000000
HRR7: 00000000_00000000
<output truncated>
 
GMR31: FF_FFFFFFFF_FFFFFFFF
GMR32: FF_FFFFFFFF_FFFFFFFF
GMR33: FF_FFFFFFFF_FFFFFFFF
 
=============================================================================
TCAM related PortASIC 1 registers
=============================================================================
LookupType: 89A1C67D_24E35F00
LastCamIndex: 0000FFE0
LocalNoMatch: 000069E0
ForwardingRamBaseAddress:
00022A00 0002FE00 00040600 0002FE00 0000D400
00000000 003FBA00 00009000 00009000 00040600
00000000 00012800 00012900

 
Related Commands

Command
Description

show controllers cpu-interface

Displays the state of the CPU network ASIC and send and receive statistics for packets reaching the CPU.

show controllers ethernet-controller

Displays per-interface send and receive statistics read from the hardware or the interface internal registers.

show controllers utilization

Use the show controllers utilization user EXEC command to display bandwidth utilization on the switch or specific ports.

show controllers [ interface-id ] utilization

 
Syntax Description

interface-id

(Optional) ID of the switch interface.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show controllers utilization command.

Switch> show controllers utilization
Port Receive Utilization Transmit Utilization
Gi1/0/1 0 0
Gi1/0/2 0 0
Gi1/0/3 0 0
Gi1/0/4 0 0
Gi1/0/5 0 0
Gi1/0/6 0 0
Gi1/0/7 0 0
<output truncated>
 
Gi2/0/1 0 0
Gi2/0/2 0 0
<output truncated>
 
Switch Receive Bandwidth Percentage Utilization : 0
Switch Transmit Bandwidth Percentage Utilization : 0
 
Switch Fabric Percentage Utilization : 0
 

This is an example of output from the show controllers utilization command on a specific port:

Switch> show controllers gigabitethernet1/0/1 utilization
Receive Bandwidth Percentage Utilization : 0
Transmit Bandwidth Percentage Utilization : 0
 

 

Table 2-31 show controllers utilization Field Descriptions
Field
Description

Receive Bandwidth Percentage Utilization

Displays the received bandwidth usage of the switch, which is the sum of the received traffic on all the ports divided by the switch receive capacity.

Transmit Bandwidth Percentage Utilization

Displays the transmitted bandwidth usage of the switch, which is the sum of the transmitted traffic on all the ports divided it by the switch transmit capacity.

Fabric Percentage Utilization

Displays the average of the transmitted and received bandwidth usage of the switch.

 
Related Commands

Command
Description

show controllers ethernet-controller

Displays the interface internal registers.

show device-sensor cache

To display Device Sensor cache entries, use the show device-sensor cache command in privileged EXEC mode.

show device-sensor cache { mac mac-address | all }

 
Syntax Description

mac mac-address

Specifies the MAC address of the device for which the sensor cache entries are to be displayed.

all

Displays sensor cache entries for all devices.

 
Command Default

There are no defaults for this command.

 
Command Modes

Privileged EXEC (#)

 
Command History

Release
Modification

15.0(1)SE1

This command was introduced.

 
Usage Guidelines

Use the show device-sensor cache command to display a list of TLV fields or options received from a particular device or from all devices.

Examples

The following is sample output from the show device-sensor cache mac mac-address command:

Router# show device-sensor cache mac 0024.14dc.df4d
 
Device: 0024.14dc.df4d on port GigabitEthernet1/0/24
--------------------------------------------------
Proto Type:Name Len Value
cdp 26:power-available-type 16 00 1A 00 10 00 00 00 01 00 00 00 00 FF FF FF FF
cdp 22:mgmt-address-type 17 00 16 00 11 00 00 00 01 01 01 CC 00 04 09 1B 65
0E
cdp 11:duplex-type 5 00 0B 00 05 01
cdp 9:vtp-mgmt-domain-type 4 00 09 00 04
cdp 4:capabilities-type 8 00 04 00 08 00 00 00 28
cdp 1:device-name 14 00 01 00 0E 73 75 70 70 6C 69 63 61 6E 74
lldp 0:end-of-lldpdu 2 00 00
lldp 8:management-address 14 10 0C 05 01 09 1B 65 0E 03 00 00 00 01 00
lldp 7:system-capabilities 6 0E 04 00 14 00 04
lldp 4:port-description 23 08 15 47 69 67 61 62 69 74 45 74 68 65 72 6E 65
74 31 2F 30 2F 32 34
lldp 5:system-name 12 0A 0A 73 75 70 70 6C 69 63 61 6E 74
dhcp 82:relay-agent-info 20 52 12 01 06 00 04 00 18 01 18 02 08 00 06 00 24
14 DC DF 80
dhcp 12:host-name 12 0C 0A 73 75 70 70 6C 69 63 61 6E 74
dhcp 61:client-identifier 32 3D 1E 00 63 69 73 63 6F 2D 30 30 32 34 2E 31 34
64 63 2E 64 66 34 64 2D 47 69 31 2F 30 2F 32 34
dhcp 57:max-message-size 4 39 02 04 80
 

The following is sample output from the show device-sensor cache all command:

Router# show device-sensor cache all
 
Device: 001c.0f74.8480 on port GigabitEthernet2/1
--------------------------------------------------
Proto Type:Name Len Value
dhcp 52:option-overload 3 34 01 03
dhcp 60:class-identifier 11 3C 09 64 6F 63 73 69 73 31 2E 30
dhcp 55:parameter-request-list 8 37 06 01 42 06 03 43 96
dhcp 61:client-identifier 27 3D 19 00 63 69 73 63 6F 2D 30 30 31 63 2E 30 66
37 34 2E 38 34 38 30 2D 56 6C 31
dhcp 57:max-message-size 4 39 02 04 80
 
Device: 000f.f7a7.234f on port GigabitEthernet2/1
--------------------------------------------------
Proto Type:Name Len Value
cdp 22:mgmt-address-type 8 00 16 00 08 00 00 00 00
cdp 19:cos-type 5 00 13 00 05 00
cdp 18:trust-type 5 00 12 00 05 00
cdp 11:duplex-type 5 00 0B 00 05 01
cdp 10:native-vlan-type 6 00 0A 00 06 00 01
cdp 9:vtp-mgmt-domain-type 9 00 09 00 09 63 69 73 63 6F

 

The following table describes the significant fields shown in the display:

Field
Description

Device

MAC address of the device and the interface which it is connected to.

Proto

Protocol from which the endpoint device data is being gleaned.

Type

Type of TLV.

Name

Name of the TLV.

Len

Length of the TLV.

Value

Value of the TLV.

 
Related Commands

Command
Description

debug device-sensor

Enables debugging for Device Sensor.

device-sensor accounting

Adds the Device Sensor protocol data to accounting records and generates additional accounting events when new sensor data is detected.

device-sensor filter-list

Creates a CDP or LLDP filter containing a list of options that can be included or excluded in the Device Sensor output.

device-sensor filter-list dhcp

Creates a DHCP filter containing a list of options that can be included or excluded in the Device Sensor output.

show device-sensor cache

Displays Device Sensor cache entries.

show diagnostic

Use the show diagnostic user EXEC command to display the online diagnostic test results and the supported test suites.

show diagnostic content switch [ number | all ]

show diagnostic post

show diagnostic result switch [ number | all ] [ detail | test { name | test-id | test-id-range | all } [ detail ]]

show diagnostic schedule switch [ number | all ]

show diagnostic status

show diagnostic switch [ number | all ] [ detail ]

 
Syntax Description

content

Display test information including the test ID, the test attributes, and the supported coverage test levels for specific tests and for switches.

switch [ number | all ]

When entering the content, result, schedule, and switch keywords, you can specify the switches by using one of these options.

  • (Optional) Use the number parameter to display test information for a specific switch. The switch number is the stack member. If the switch is a standalone switch, the switch number is 1. If the switch is a stack master or a stack member, the range is 1 to 9, depending on the switch member numbers in the stack.
  • (Optional) Use the all keyword to display all the test information for the switch or the switch stack.

The number and all options are supported only on stacking-capable switches.

Use the show diagnostic switch [ number | all ] command to display the diagnostic test results for the switch or the switch stack. For information about this parameter and the result keyword, see the “Usage Guidelines” section.

post

Display the power-on self-test (POST) results.

result

Display the diagnostic test results.

detail

(Optional) Display the detailed test results.

test

(Optional) Specify the test results to display:

  • name —Enter the name of the diagnostic test to display results only for this test.
  • test-id —Enter the test ID number to display results only for this test.
  • test-id-range —Enter the range of test ID numbers to display results only for these tests.
  • all —Enter this keyword to display results for all the tests.

schedule

Display the scheduled diagnostic tests.

status

Display the running diagnostic tests.

 
Defaults

This command has no default setting.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show diagnostic post command output is the same as the show post command output.

In Catalyst 3750-X switch stacks, if you do not enter the switch number parameter with the content, result, schedule, and switch keywords, information for all stack members is displayed.

On Catalyst 3750-X switches, the show diagnostic result switch [ number | all ] [ detail ] command output is the same as the show diagnostic switch [ number | all ] [ detail ] command output.

On Catalyst 3560-X switches, the show diagnostic result [ detail ] command output is the same as the show diagnostic switch [ detail ] command output.

Examples

This example shows how to display the online diagnostics that are configured on all the PoE-capable switches in a stack:

Switch> show diagnostic content switch all
Switch 1:
 
Diagnostics test suite attributes:
B/* - Basic ondemand test / NA
P/V/* - Per port test / Per device test / NA
D/N/* - Disruptive test / Non-disruptive test / NA
S/* - Only applicable to standby unit / NA
X/* - Not a health monitoring test / NA
F/* - Fixed monitoring interval test / NA
E/* - Always enabled monitoring test / NA
A/I - Monitoring is active / Monitoring is inactive
R/* - Switch will reload after test list completion / NA
P/* - will partition stack / NA
 
Test Interval Thre-
ID Test Name Attributes day hh:mm:ss.ms shold
==== ================================== ============ =============== =====
1) TestPortAsicStackPortLoopback ---> B*N****I** not configured n/a
2) TestPortAsicLoopback ------------> B*D*X**IR* not configured n/a
3) TestPortAsicCam -----------------> B*D*X**IR* not configured n/a
4) TestPortAsicRingLoopback --------> B*D*X**IR* not configured n/a
5) TestMicRingLoopback -------------> B*D*X**IR* not configured n/a
6) TestPortAsicMem -----------------> B*D*X**IR* not configured n/a
7) TestInlinePwrCtlr ---------------> B*D*X**IR* not configured n/a
 
<output truncated>
 

Note If you enter the show diagnostic content switch all command on a non-PoE-capable switch, information about test 7, TestInlinePwrCtlr, does not appear in the command output.

This example shows how to display the diagnostic test results on a switch. You can also use the show diagnostic switch command to display these diagnostic results.

Switch> show diagnostic result
Switch 1: SerialNo : CAT1007R044
 
Overall diagnostic result: PASS
 
Test results: (. = Pass, F = Fail, U = Untested)
 
1) TestPortAsicStackPortLoopback --->.
2) TestPortAsicLoopback ------------> U
3) TestPortAsicCam -----------------> U
4) TestPortAsicRingLoopback --------> U
5) TestMicRingLoopback -------------> U
6) TestPortAsicMem -----------------> U
7) TestInlinePwrCtlr ---------------> U
 

This example shows how to display the running tests in a switch stack:

Switch> show diagnostic status
<BU> - Bootup Diagnostics, <HM> - Health Monitoring Diagnostics,
<OD> - OnDemand Diagnostics, <SCH> - Scheduled Diagnostics
====== ================================= =============================== ======
Card Description Current Running Test Run by
------ --------------------------------- --------------------- ------
1 N/A N/A
2 TestPortAsicStackPortLoopback <OD>
TestPortAsicLoopback <OD>
TestPortAsicCam <OD>
TestPortAsicRingLoopback <OD>
TestMicRingLoopback <OD>
TestPortAsicMem <OD>
3 N/A N/A
4 N/A N/A
====== ================================= =============================== ======
 
<output truncated>
 

This example shows how to display the online diagnostic test schedule for a switch:

Switch> show diagnostic schedule
Current Time = 14:39:49 PST Tue Jul 5 2005
Diagnostic for Switch 1:
Schedule #1:
To be run daily 12:00
Test ID(s) to be executed: 1.
 

This example shows how to display the detailed switch results for all the switches in stack. You can also use the show diagnostic result switch all detail command to display these results.

Switch> show diagnostic switch all detail
Switch 1: SerialNo : CAT1007R044
 
Overall diagnostic result: PASS
 
Test results: (. = Pass, F = Fail, U = Untested)
 
___________________________________________________________________________
 
1) TestPortAsicStackPortLoopback --->.
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 19
Last test execution time ----> Mar 01 1993 00:21:46
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> Mar 01 1993 00:21:46
Total failure count ---------> 0
Consecutive failure count ---> 0
___________________________________________________________________________
 
2) TestPortAsicLoopback ------------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
___________________________________________________________________________
 
3) TestPortAsicCam -----------------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
___________________________________________________________________________
 
 
4) TestPortAsicRingLoopback --------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
___________________________________________________________________________
 
5) TestMicRingLoopback -------------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
___________________________________________________________________________
 
6) TestPortAsicMem -----------------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
__________________________________________________________________________
 
7) TestInlinePwrCtlr ---------------> U
 
Error code ------------------> 0 (DIAG_SUCCESS)
Total run count -------------> 0
Last test execution time ----> n/a
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> n/a
Total failure count ---------> 0
Consecutive failure count ---> 0
__________________________________________________________________________

 
Related Commands

Command
Description

diagnostic monitor

Configures the health-monitoring diagnostic test.

diagnostic schedule

Sets the scheduling of test-based online diagnostic testing.

diagnostic start

Starts the online diagnostic test.

show dot1q-tunnel

Use the show dot1q-tunnel user EXEC command to display information about IEEE 802.1Q tunnel ports.

show dot1q-tunnel [ interface interface-id ]

Note This command is not supported on switches running the LAN base feature set.

 
Syntax Description

interface interface-id

(Optional) Specify the interface for which to display IEEE 802.1Q tunneling information. Valid interfaces include physical ports and port channels.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

These are examples of output from the show dot1q-tunnel command:

Switch> show dot1q-tunnel
dot1q-tunnel mode LAN Port(s)
-----------------------------
Gi1/0/1
Gi1/0/2
Gi1/0/3
Gi1/0/6
Po2
 
Switch> show dot1q-tunnel interface gigabitethernet1/0/1
dot1q-tunnel mode LAN Port(s)
-----------------------------
Gi1/0/1

 
Related Commands

Command
Description

show vlan dot1q tag native

Displays IEEE 802.1Q native VLAN tagging status.

switchport mode dot1q-tunnel

Configures an interface as an IEEE 802.1Q tunnel port.

show dot1x

Use the show dot1x user EXEC command to display IEEE 802.1x statistics, administrative status, and operational status for the switch or for the specified port.

show dot1x [{ all [ summary ] | interface interface-id } [ details | statistics ]]

 
Syntax Description

all [ summary ]

(Optional) Display the IEEE 802.1x status for all ports.

interface interface-id

(Optional) Display the IEEE 802.1x status for the specified port (including type, stack member [stacking-capable switches only], module, and port number).

details

(Optional) Display the IEEE 802.1x interface details.

statistics

(Optional) Display IEEE 802.1x statistics for the specified port.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you do not specify a port, global parameters and a summary appear. If you specify a port, details for that port appear.

If the port control is configured as unidirectional or bidirectional control and this setting conflicts with the switch configuration, the show dot1x { all | interface interface-id } privileged EXEC command output has this information:

ControlDirection = In (Inactive)
 

Examples

This is an example of output from the show dot1x user EXEC command:

Switch> show dot1x
Sysauthcontrol Enabled
Dot1x Protocol Version 2
Critical Recovery Delay 100
Critical EAPOL Disabled
 

This is an example of output from the show dot1x all user EXEC command:

Switch> show dot1x all
Sysauthcontrol Enabled
Dot1x Protocol Version 2
Critical Recovery Delay 100
Critical EAPOL Disabled
 
Dot1x Info for GigabitEthernet1/0/1
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = Both
HostMode = SINGLE_HOST
ReAuthentication = Disabled
QuietPeriod = 60
ServerTimeout = 30
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 30
RateLimitPeriod = 0
 
<output truncated>
 

This is an example of output from the show dot1x all summary user EXEC command:

Interface PAE Client Status
--------------------------------------------------------
Gi2/0/1 AUTH none UNAUTHORIZED
Gi2/0/2 AUTH 00a0.c9b8.0072 AUTHORIZED
Gi2/0/3 AUTH none UNAUTHORIZED
 

This is an example of output from the show dot1x interface interface-id user EXEC command:

Switch> show dot1x interface gigabitethernet1/0/2
Dot1x Info for GigabitEthernet1/0/2
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = In
HostMode = SINGLE_HOST
ReAuthentication = Disabled
QuietPeriod = 60
ServerTimeout = 30
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 30
RateLimitPeriod = 0
 

This is an example of output from the show dot1x interface interface-id details user EXEC command:

Switch# show dot1x interface gigabitethernet1/0/2 details
Dot1x Info for GigabitEthernet1/0/2
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = Both
HostMode = SINGLE_HOST
ReAuthentication = Disabled
QuietPeriod = 60
ServerTimeout = 30
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 30
RateLimitPeriod = 0
 
Dot1x Authenticator Client List Empty
 

This is an example of output from the show dot1x interface interface-id details commmand when a port is assigned to a guest VLAN and the host mode changes to multiple-hosts mode:

Switch# show dot1x interface gigabitethernet1/0/1 details
Dot1x Info for GigabitEthernet1/0/1
-----------------------------------
PAE = AUTHENTICATOR
PortControl = AUTO
ControlDirection = Both
HostMode = SINGLE_HOST
ReAuthentication = Enabled
QuietPeriod = 60
ServerTimeout = 30
SuppTimeout = 30
ReAuthPeriod = 3600 (Locally configured)
ReAuthMax = 2
MaxReq = 2
TxPeriod = 30
RateLimitPeriod = 0
Guest-Vlan = 182
 
Dot1x Authenticator Client List Empty
 
Port Status = AUTHORIZED
Authorized By = Guest-Vlan
Operational HostMode = MULTI_HOST
Vlan Policy = 182
 

This is an example of output from the show dot1x interface interface-id statistics command. Table 2-32 describes the fields in the display.

Switch> show dot1x interface gigabitethernet1/0/2 statistics
Dot1x Authenticator Port Statistics for GigabitEthernet1/0/2
--------------------------------------------
RxStart = 0 RxLogoff = 0 RxResp = 1 RxRespID = 1
RxInvalid = 0 RxLenErr = 0 RxTotal = 2
 
TxReq = 2 TxReqID = 132 TxTotal = 134
 
RxVersion = 2 LastRxSrcMAC = 00a0.c9b8.0072
 

 

Table 2-32 show dot1x statistics Field Descriptions

Field
Description

RxStart

Number of valid EAPOL-start frames that have been received.

RxLogoff

Number of EAPOL-logoff frames that have been received.

RxResp

Number of valid EAP-response frames (other than response/identity frames) that have been received.

RxRespID

Number of EAP-response/identity frames that have been received.

RxInvalid

Number of EAPOL frames that have been received and have an unrecognized frame type.

RxLenError

Number of EAPOL frames that have been received in which the packet body length field is invalid.

RxTotal

Number of valid EAPOL frames of any type that have been received.

TxReq

Number of EAP-request frames (other than request/identity frames) that have been sent.

TxReqId

Number of Extensible Authentication Protocol (EAP)-request/identity frames that have been sent.

TxTotal

Number of Extensible Authentication Protocol over LAN (EAPOL) frames of any type that have been sent.

RxVersion

Number of received packets in the IEEE 802.1x Version 1 format.

LastRxSrcMac

Source MAC address carried in the most recently received EAPOL frame.

 
Related Commands

Command
Description

dot1x default

Resets the IEEE 802.1x parameters to their default values.

show dtp

Use the show dtp privileged EXEC command to display Dynamic Trunking Protocol (DTP) information for the switch or for a specified interface.

show dtp [ interface interface-id ]

 
Syntax Description

interface interface-id

(Optional) Display port security settings for the specified interface. Valid interfaces include physical ports (including type, stack member (stacking-capable switches only) module, and port number).

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show dtp command:

Switch# show dtp
Global DTP information
Sending DTP Hello packets every 30 seconds
Dynamic Trunk timeout is 300 seconds
21 interfaces using DTP
 

This is an example of output from the show dtp interface command:

Switch# show dtp interface gigabitethernet1/0/1
DTP information for GigabitEthernet1/0/1:
TOS/TAS/TNS: ACCESS/AUTO/ACCESS
TOT/TAT/TNT: NATIVE/NEGOTIATE/NATIVE
Neighbor address 1: 000943A7D081
Neighbor address 2: 000000000000
Hello timer expiration (sec/state): 1/RUNNING
Access timer expiration (sec/state): never/STOPPED
Negotiation timer expiration (sec/state): never/STOPPED
Multidrop timer expiration (sec/state): never/STOPPED
FSM state: S2:ACCESS
# times multi & trunk 0
Enabled: yes
In STP: no
 
Statistics
----------
3160 packets received (3160 good)
0 packets dropped
0 nonegotiate, 0 bad version, 0 domain mismatches, 0 bad TLVs, 0 other
6320 packets output (6320 good)
3160 native, 3160 software encap isl, 0 isl hardware native
0 output errors
0 trunk timeouts
1 link ups, last link up on Mon Mar 01 1993, 01:02:29
0 link downs

 
Related Commands

Command
Description

show interfaces trunk

Displays interface trunking information.

show eap

Use the show eap privileged EXEC command to display Extensible Authentication Protocol (EAP) registration and session information for the switch or for the specified port.

show eap {{ registrations [ method [ name ] | transport [ name ]]} | { sessions [ credentials name [ interface interface-id ] | interface interface-id | method name | transport name ]}} [ credentials name | interface interface-id | transport name ]

 
Syntax Description

registrations

Display EAP registration information.

method name

(Optional) Display EAP method registration information.

transport name

(Optional) Display EAP transport registration information.

sessions

Display EAP session information.

credentials name

(Optional) Display EAP method registration information.

interface interface-id

(Optional) Display the EAP information for the specified port (including type, stack member (stacking-capable switches only) module, and port number).

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

When you use the show eap registrations privileged EXEC command with these keywords, the command output shows this information:

  • None—All the lower levels used by EAP and the registered EAP methods.
  • method name keyword—The specified method registrations.
  • transport name keyword—The specific lower-level registrations.

When you use the show eap sessions privileged EXEC command with these keywords, the command output shows this information:

  • None—All active EAP sessions.
  • credentials name keyword—The specified credentials profile.
  • interface interface-id keyword—The parameters for the specified interface.
  • method name keyword—The specified EAP method.
  • transport name keyword—The specified lower layer.

Examples

This is an example of output from the show eap registrations privileged EXEC command:

Switch> show eap registrations
Registered EAP Methods:
Method Type Name
4 Peer MD5
 
Registered EAP Lower Layers:
Handle Type Name
2 Authenticator Dot1x-Authenticator
1 Authenticator MAB
 

This is an example of output from the show eap registrations transport privileged user EXEC command:

Switch> show eap registrations transport all
Registered EAP Lower Layers:
Handle Type Name
2 Authenticator Dot1x-Authenticator
1 Authenticator MAB
 

This is an example of output from the show eap sessions privileged EXEC command:

Switch> show eap sessions
Role: Authenticator Decision: Fail
Lower layer: Dot1x-AuthenticaInterface: Gi1/0/1
Current method: None Method state: Uninitialised
Retransmission count: 0 (max: 2) Timer: Authenticator
ReqId Retransmit (timeout: 30s, remaining: 2s)
EAP handle: 0x5200000A Credentials profile: None
Lower layer context ID: 0x93000004 Eap profile name: None
Method context ID: 0x00000000 Peer Identity: None
Start timeout (s): 1 Retransmit timeout (s): 30 (30)
Current ID: 2 Available local methods: None
 
Role: Authenticator Decision: Fail
Lower layer: Dot1x-AuthenticaInterface: Gi1/0/2
Current method: None Method state: Uninitialised
Retransmission count: 0 (max: 2) Timer: Authenticator
ReqId Retransmit (timeout: 30s, remaining: 2s)
EAP handle: 0xA800000B Credentials profile: None
Lower layer context ID: 0x0D000005 Eap profile name: None
Method context ID: 0x00000000 Peer Identity: None
Start timeout (s): 1 Retransmit timeout (s): 30 (30)
Current ID: 2 Available local methods: None
 
<Output truncated>
 

This is an example of output from the show eap sessions interface interface-id privileged EXEC command:

Switch# show eap sessions gigabitethernet1/0/1
Role: Authenticator Decision: Fail
Lower layer: Dot1x-AuthenticaInterface: Gi1/0/1
Current method: None Method state: Uninitialised
Retransmission count: 1 (max: 2) Timer: Authenticator
ReqId Retransmit (timeout: 30s, remaining: 13s)
EAP handle: 0x5200000A Credentials profile: None
Lower layer context ID: 0x93000004 Eap profile name: None
Method context ID: 0x00000000 Peer Identity: None
Start timeout (s): 1 Retransmit timeout (s): 30 (30)
Current ID: 2 Available local methods: None
 

 
Related Commands

Command
Description

clear eap sessions

Clears EAP session information for the switch or for the specified port.

show env

Use the show env user EXEC command to display fan, temperature, redundant power system (RPS) availability, and power information for the switch or the switch stack.

show env { all | fan | power [ all | switch [ switch-number ] ] | rps | stack [ switch-number ] | temperature [ status ] | xps }

 
Syntax Description

all

Display the fan and temperature environmental status and the status of the internal power supplies and the RPS.

fan

Display the switch fan status.

power

Display the switch internal power status.

power all

(Optional) Display the status of all the internal power supplies in a standalone switch when the command is entered on the switch or in all the stack members when the command is entered on the stack master.

power switch [ switch-number ]

(Optional) Display the status of the internal power supplies for each switch in the stack or for the specified switch. The range is 1 to 9, depending on the switch member numbers in the stack.

These keywords are available only on Catalyst 3750-E switches.

rps

Display whether a redundant power system is connected to a Catalyst 3750-E or Catalyst 3750 switch in the stack as follows:

  • Catalyst 3750-E—Cisco Redundant Power System 2300, also referred to as the RPS 2300.
  • Catalyst 3750 switch—the RPS 2300 or Cisco RPS 675 Redundant Power System, also referred to as the RPS 675.

Note Catalyst 3750-X and 3560-X switches do not connect to redundant power systems.

stack [ switch-number ]

Display all environmental status for each switch in the stack or for the specified switch. The range is 1 to 9, depending on the switch member numbers in the stack.

This keyword is available only on stacking-capable switches.

temperature

Display the switch temperature status.

temperature status

(Optional) Display the switch internal temperature (not the external temperature) and the threshold values.

xps

(Optional) Display information for the Cisco eXpandable Power System (XPS) 2200. See the show env xps command.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use the show env user EXEC command to display the information for the switch being accessed—a standalone switch or the stack master. Use this command with the stack and switch keywords to display all information for the stack or for the specified stack member.

If you enter the show env temperature status command, the command output shows the switch temperature state and the threshold level.

You can also use the show env temperature command to display the switch temperature status. The command output shows the green and yellow states as OK and the red state as FAULTY. If you enter the show env all command, the command output is the same as the show env temperature status command output.

Examples

This is an example of output from the show env all command on a standalone switch:

Switch #show env all
FAN 1 is OK
FAN 2 is OK
FAN PS-1 is OK
FAN PS-2 is OK
TEMPERATURE is OK
Temperature Value: 27 Degree Celsius
Temperature State: GREEN
Yellow Threshold : 49 Degree Celsius
Red Threshold : 59 Degree Celsius
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A NG3K-PWR-715WAC LIT133705CV OK Good Good 715/0
1B NG3K-PWR-1100WAC LIT1337056X OK Good Good 1100/0
2A C3KX-PWR-350WAC DTN1342L00Y OK Good Good 350/0
2B C3KX-PWR-715WAC DTN1341K01W OK Good Good 715/0
3A Not Present
3B C3KX-PWR-715WAC DTN1341K01T OK Good Good 715/0
 
SW Status RPS Name RPS Serial# RPS Port#
-- ------------- ---------------- ----------- ---------
1 Active <>
2 Active <>
3 Active <>
 
 

This is an example of output from the show env fan command:

Switch> show env fan
FAN 1 is OK
FAN 2 is OK
 

This is an example of output from the show env power all command on a stack master:

Switch #show env power all
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A NG3K-PWR-715WAC LIT133705CV OK Good Good 715/0
1B NG3K-PWR-1100WAC LIT1337056X OK Good Good 1100/0
2A C3KX-PWR-350WAC DTN1342L00Y OK Good Good 350/0
2B C3KX-PWR-715WAC DTN1341K01W OK Good Good 715/0
3A Not Present
3B C3KX-PWR-715WAC DTN1341K01T OK Good Good 715/0
 

This is an example of output from the show env stack command on a stack master:

Switch> show env stack
SWITCH: 1
FAN 1 is OK
FAN 2 is OK
PS-FAN1 is OK
PS-FAN2 is OK
TEMPERATURE is OK
Temperature Value: 27 Degree Celsius
Temperature State: GREEN
Yellow Threshold : 49 Degree Celsius
Red Threshold : 59 Degree Celsius
POWER is OK
RPS is AVAILABLE
 
<output truncated>
 

This example shows how to display the temperature value, state, and the threshold values on a standalone switch. Table 2-33 describes the temperature states in the command output.

Switch> show env temperature status
Temperature Value: 33 Degree Celsius
Temperature State: GREEN
Yellow Threshold : 65 Degree Celsius
Red Threshold : 75 Degree Celsius
 

 

Table 2-33 States in the show env temperature status Command Output

State
Description

Green

The switch temperature is in the normal operating range.

Yellow

The temperature is in the warning range. You should check the external temperature around the switch.

Red

The temperature is in the critical range. The switch might not run properly if the temperature is in this range.

 
Related Commands

Command
Description

power supply

Configures and manages the power supply modules on the switch.

power xps

Configures the Cisco XPS 2200.

show env xps

Displays information about the Cisco XPS 2200.

show env xps

To display budgeting, configuration, power, and system power information for the Cisco eXpandable Power System (XPS) 2200, use the show env xps command in privileged EXEC mode.

show env xps { budgeting | configuration | port [ all | number ] | power | system | thermal | upgrade | version }

 
Syntax Description

budgeting

Displays XPS power budgeting, the allocated and budgeted power of all switches in the power stack.

configuration

Displays the configuration resulting from the power xps privileged EXEC commands. The XPS configuration is stored in the XPS. Enter the show env xps configuration command to retrieve the non-default configuration.

port [ all | number ]

Displays the configuration and status of all ports or the specified XPS port. Port numbers are from 1 to 9.

power

Displays the status of the XPS power supplies.

system

Displays the XPS system status.

thermal

Displays the XPS thermal status.

upgrade

Displays the XPS upgrade status.

version

Displays the XPS version details.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(55)SE1

This command was introduced.

 
Usage Guidelines

Use the show env xps privileged EXEC command to display the information for XPS 2200.

Examples

This is an example of output from the show env xps budgeting command:

Switch# show env xps budgeting
=========================================================
XPS 0101.0100.0000 :
=========================================================
Data Current Power Power
Port Switch # PS A PS B Role-State Committed Budget
---- -------- ---- ---- ---------- --------- ------
1 - - 715 SP-PS 223 1543
2 - - - SP-PS 223 223
3 - - - - - -
4 - - - - - -
5 - - - - - -
6 - - - - - -
7 - - - - - -
8 - - - - - -
9 1 1100 - RPS-NB 223 1070
XPS - - 1100 - - -
 

This is an example of output from the show env xps configuration command:

Switch# show env xps configuration
=============================================
XPS 0101.0100.0000 :
=============================================
power xps port 4 priority 5
power xps port 5 mode disable
power xps port 5 priority 6
power xps port 6 priority 7
power xps port 7 priority 8
power xps port 8 priority 9
power xps port 9 priority 4
 

This is an example of output from the show env xps port all command:

Switch# show env xps port all
 
XPS 0101.0100.0000 Port 1
-----------------------------------------
Port name : -
Connected : Yes
Mode : Enabled (On)
Priority : 1
Data stack switch # : -
Configured role : Auto-SP
Run mode : SP-PS : Stack Power Power-Sharing Mode
Cable faults : 0x0
 
XPS 0101.0100.0000 Port 2
-----------------------------------------
Port name : -
Connected : Yes
Mode : Enabled (On)
Priority : 2
Data stack switch # : -
Configured role : Auto-SP
Run mode : SP-PS : Stack Power Power-Sharing Mode
Cable faults : 0x0
 
XPS 0101.0100.0000 Port 3
-----------------------------------------
Port name : -
Connected : No
Mode : Enabled (On)
Priority : 3
Data stack switch # : -
Configured role : Auto-SP
Run mode : -
Cable faults : 0x0
 
<output truncated>
 

This is an example of output from the show env xps power command:

Switch# show env xps power
=============================================================================
XPS 0101.0100.0000 :
=============================================================================
Port-Supply SW PID Serial# Status Mode Watts
----------- -- ------------------ ----------- -------------- ---- -----
XPS-A Not present
XPS-B NG3K-PWR-1100WAC LIT13320NTV OK SP 1100
1-A - - - -
1-B - - - - SP 715
2-A - - - -
2-B - - - -
9-A 1A C3KX-PWR-1100WAC LIT141307RK OK RPS 1100
9-B 1B Not Present
 

This is an example of output from the show env xps system command:

Switch# show env xps system
============================================================================
XPS 0101.0100.0000 :
============================================================================
XPS Cfg Cfg RPS Switch Current Data
Port XPS Port Name Mode Role Pri Conn Role-State Switch #
---- -------------------- ---- ------- --- ------ ---------- --------
1 - On Auto-SP 1 Yes SP-PS -
2 - On Auto-SP 2 Yes SP-PS -
3 - On Auto-SP 3 No - -
4 none On Auto-SP 5 No - -
5 - Off Auto-SP 6 No - -
6 - On Auto-SP 7 No - -
7 - On Auto-SP 8 No - -
8 - On Auto-SP 9 No - -
9 test On Auto-SP 4 Yes RPS-NB 1
 

This is an example of output from the show env xps thermal command:

Switch# show env xps thermal
=============================================
XPS 0101.0100.0000 :
=============================================
Fan Status
---- -----------
1 OK
2 OK
3 NOT PRESENT
PS-1 NOT PRESENT
PS-2 OK
 
Temperature is OK
 

This is an example of output from the show env xps upgrade command when no upgrade is occurring:

Switch# show env xps upgrade
No XPS is connected and upgrading.
 

These are examples of output from the show env xps upgrade command when an upgrade is in process:

Switch# show env xps upgrade
XPS Upgrade Xfer
SW Status Prog
-- ----------- ----
1 Waiting 0%
Switch#
*Mar 22 03:12:46.723: %PLATFORM_XPS-6-UPGRADE_START: XPS 0022.bdd7.9b14 upgrade has started through the Service Port.
 
Switch# show env xps upgrade
XPS Upgrade Xfer
SW Status Prog
-- ----------- ----
1 Receiving 1%
 
Switch# show env xps upgrade
XPS Upgrade Xfer
SW Status Prog
-- ----------- ----
1 Receiving 5%
 
Switch# show env xps upgrade
XPS Upgrade Xfer
SW Status Prog
-- ----------- ----
1 Reloading 100%
Switch#
*Mar 22 03:16:01.733: %PLATFORM_XPS-6-UPGRADE_DONE: XPS 0022.bdd7.9b14 upgrade has completed and the XPS is reloading.
 

This is an example of output from the show env xps version command:

Switch# show env xps version
=============================================
XPS 0022.bdd7.9b14:
=============================================
Serial Number: FDO13490KUT
Hardware Version: 8
Bootloader Version: 7
Software Version: 18

 
Related Commands

Command
Description

power xps (global configuration command)

Configures XPS and XPS port names.

power xps (privileged EXEC command)

Configures the XPS ports and system.

show errdisable detect

Use the show errdisable detect user EXEC command to display error-disabled detection status.

show errdisable detect

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

A displayed gbic-invalid error reason refers to an invalid small form-factor pluggable (SFP) module.

The error-disable reasons in the command output are listed in alphabetical order. The mode column shows how error disable is configured for each feature.

You can configure error-disabled detection in these modes:

  • port mode—The entire physical port is error disabled if a violation occurs.
  • vlan mode—The VLAN is error disabled if a violation occurs.
  • port/vlan mode—The entire physical port is error disabled on some ports and per-VLAN error disabled on other ports.

Examples

This is an example of output from the show errdisable detect command:

Switch> show errdisable detect
ErrDisable Reason Detection Mode
----------------- --------- ----
arp-inspection Enabled port
bpduguard Enabled vlan
channel-misconfig Enabled port
community-limit Enabled port
dhcp-rate-limit Enabled port
dtp-flap Enabled port
gbic-invalid Enabled port
inline-power Enabled port
invalid-policy Enabled port
l2ptguard Enabled port
link-flap Enabled port
loopback Enabled port
lsgroup Enabled port
pagp-flap Enabled port
psecure-violation Enabled port/vlan
security-violatio Enabled port
sfp-config-mismat Enabled port
storm-control Enabled port
udld Enabled port
vmps Enabled port

 
Related Commands

Command
Description

errdisable detect cause

Enables error-disabled detection for a specific cause or all causes.

show errdisable flap-values

Displays error condition recognition information.

show errdisable recovery

Displays error-disabled recovery timer information.

show interfaces status

Displays interface status or a list of interfaces in error-disabled state.

show errdisable flap-values

Use the show errdisable flap-values user EXEC command to display conditions that cause an error to be recognized for a cause.

show errdisable flap-values

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The Flaps column in the display shows how many changes to the state within the specified time interval will cause an error to be detected and a port to be disabled. See the “Examples” section for an example of the display.

Examples

This is an example of output from the show errdisable flap-values command, which shows that an error will be assumed and the port shut down if three Dynamic Trunking Protocol (DTP)-state (port mode access/trunk) or Port Aggregation Protocol (PAgP) flap changes occur during a 30-second interval, or if 5 link-state (link up/down) changes occur during a 10-second interval:

Switch> show errdisable flap-values
ErrDisable Reason Flaps Time (sec)
----------------- ------ ----------
pagp-flap 3 30
dtp-flap 3 30
link-flap 5 10

 
Related Commands

Command
Description

errdisable detect cause

Enables error-disabled detection for a specific cause or all causes.

show errdisable detect

Displays error-disabled detection status.

show errdisable recovery

Displays error-disabled recovery timer information.

show interfaces status

Displays interface status or a list of interfaces in error-disabled state.

show errdisable recovery

Use the show errdisable recovery user EXEC command to display the error-disabled recovery timer information.

show errdisable recovery

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

A gbic-invalid error-disable reason refers to an invalid small form-factor pluggable (SFP) module interface.

Examples

This is an example of output from the show errdisable recovery command:

Switch> show errdisable recovery
ErrDisable Reason Timer Status
----------------- --------------
udld Disabled
bpduguard Disabled
security-violatio Disabled
channel-misconfig Disabled
vmps Disabled
pagp-flap Disabled
dtp-flap Disabled
link-flap Enabled
l2ptguard Disabled
psecure-violation Disabled
gbic-invalid Disabled
dhcp-rate-limit Disabled
unicast-flood Disabled
storm-control Disabled
arp-inspection Disabled
loopback Disabled
 
Timer interval:300 seconds
 
Interfaces that will be enabled at the next timeout:
 
Interface Errdisable reason Time left(sec)
--------- ----------------- --------------
Gi1/0/2 link-flap 279
 

Note Though visible in the output, the unicast-flood field is not valid.

 
Related Commands

Command
Description

errdisable recovery

Configures the recover mechanism variables.

show errdisable detect

Displays error-disabled detection status.

show errdisable flap-values

Displays error condition recognition information.

show interfaces status

Displays interface status or a list of interfaces in error-disabled state.

show etherchannel

Use the show etherchannel user EXEC command to display EtherChannel information for a channel.

show etherchannel [ channel-group-number { detail | port | port-channel | protocol | summary }] { detail | load-balance | port | port-channel | protocol | summary }

 
Syntax Description

channel-group -number

(Optional) Number of the channel group. The range is 1 to 48.

detail

Display detailed EtherChannel information.

load-balance

Display the load-balance or frame-distribution scheme among ports in the port channel.

port

Display EtherChannel port information.

port-channel

Display port-channel information.

protocol

Display the protocol that is being used in the EtherChannel.

summary

Display a one-line summary per channel-group.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you do not specify a channel-group , all channel groups are displayed.

In the output, the Passive port list field is displayed only for Layer 3 port channels. This field means that the physical port, which is still not up, is configured to be in the channel group (and indirectly is in the only port channel in the channel group).

Note Layer 3 port channels are not supported when the switch is running the LAN base feature set.

Examples

This is an example of output from the show etherchannel 1 detail command:

Switch> show etherchannel 1 detail
Group state = L2
Ports: 2 Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol: LACP
Ports in the group:
-------------------
Port: Gi1/0/1
------------
 
Port state = Up Mstr In-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
 
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDU
A - Device is in active mode. P - Device is in passive mode.
 
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi1/0/1 SA bndl 32768 0x1 0x1 0x101 0x3D
Gi1/0/2 A bndl 32768 0x0 0x1 0x0 0x3D
 
Age of the port in the current state: 01d:20h:06m:04s
Port-channels in the group:
----------------------
 
Port-channel: Po1 (Primary Aggregator)
------------
 
Age of the Port-channel = 01d:20h:20m:26s
Logical slot/port = 10/1 Number of ports = 2
HotStandBy port = null
Port state = Port-channel Ag-Inuse
Protocol = LACP
 
Ports in the Port-channel:
 
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Gi1/0/1 Active 0
0 00 Gi1/0/2 Active 0
 
Time since last port bundled: 01d:20h:20m:20s Gi1/0/2
 

This is an example of output from the show etherchannel 1 summary command:

Switch> show etherchannel 1 summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
u - unsuitable for bundling
U - in use f - failed to allocate aggregator
d - default port
 
Number of channel-groups in use: 1
Number of aggregators: 1
 
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------
1 Po1(SU) LACP Gi1/0/1(P) Gi1/0/2(P)
 

This is an example of output from the show etherchannel 1 port-channel command:

Switch> show etherchannel 1 port-channel
Port-channels in the group:
----------------------
Port-channel: Po1 (Primary Aggregator)
 
------------
 
Age of the Port-channel = 01d:20h:24m:50s
Logical slot/port = 10/1 Number of ports = 2
HotStandBy port = null
Port state = Port-channel Ag-Inuse
Protocol = LACP
 
Ports in the Port-channel:
 
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Gi1/0/1 Active 0
0 00 Gi1/0/2 Active 0
 
Time since last port bundled: 01d:20h:24m:44s Gi1/0/2
 

This is an example of output from show etherchannel protocol command:

Switch# show etherchannel protocol
Channel-group listing:
-----------------------
Group: 1
----------
Protocol: LACP
 
Group: 2
----------
Protocol: PAgP

 
Related Commands

Command
Description

channel-group

Assigns an Ethernet port to an EtherChannel group.

channel-protocol

Restricts the protocol used on a port to manage channeling.

interface port-channel

Accesses or creates the port channel.

show fallback profile

Use the show fallback profile privileged EXEC command to display the fallback profiles that are configured on a switch.

show fallback profile

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use the show fallback profile privileged EXEC command to display profiles that are configured on the switch.

Examples

This is an example of output from the show fallback profile command:

switch# show fall profile
Profile Name: dot1x-www
------------------------------------
Description : NONE
IP Admission Rule : webauth-fallback
IP Access-Group IN: default-policy
Profile Name: dot1x-www-lpip
------------------------------------
Description : NONE
IP Admission Rule : web-lpip
IP Access-Group IN: default-policy
Profile Name: profile1
------------------------------------
Description : NONE
IP Admission Rule : NONE
IP Access-Group IN: NONE

 
Related Commands

Command
Description

dot1x fallback

Configure a port to use web authentication as a fallback method for clients that do not support IEEE 802.1x authentication.

fallback profile

Create a web authentication fallback profile.

ip admission

Enable web authentication on a switch port

ip admission name proxy http

Enable web authentication globally on a switch

show dot1x [ interface interface-id ]

Displays IEEE 802.1x status for the specified port.

show flowcontrol

Use the show flowcontrol user EXEC command to display the flow control status and statistics.

show flowcontrol [ interface interface-id | module number ]

 
Syntax Description

interface interface-id

(Optional) Display the flow control status and statistics for a specific interface.

module number

(Optional) Display the flow control status and statistics for all interfaces on the switch or specified stack member.

On Catalyst 3750-X switches, the range is 1 to 9.

On Catalyst 3560-X switches, the only valid module number is 1.

This option is not available if you have entered a specific interface ID.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display the flow control status and statistics on the switch or for a specific interface.

Use the show flowcontrol command to display information about all the switch interfaces. For a standalone switch, the output from the show flowcontrol command is the same as the output from the show flowcontrol module number command.

Use the show flowcontrol interface interface-id command to display information about a specific interface.

Examples

This is an example of output from the show flowcontrol command.

Switch> show flowcontrol
Port Send FlowControl Receive FlowControl RxPause TxPause
admin oper admin oper
--------- -------- -------- -------- -------- ------- -------
Gi2/0/1 Unsupp. Unsupp. off off 0 0
Gi2/0/2 desired off off off 0 0
Gi2/0/3 desired off off off 0 0
<output truncated>
 

This is an example of output from the show flowcontrol interface interface-id command:

Switch> show flowcontrol gigabitethernet2/0/2
Port Send FlowControl Receive FlowControl RxPause TxPause
admin oper admin oper
--------- -------- -------- -------- -------- ------- -------
Gi2/0/2 desired off off off 0 0

 
Related Commands

Command
Description

flowcontrol

Sets the receive flow-control state for an interface.

show hw-module switch

To display the configured port speed on the 10-Gigabit Ethernet slots on C3KX-NM-10GT network modules, use the show hw-module switch command in privileged EXEC mode.

show hw-module switch { switch-number | all } port-group { switch-number | all }

 
Syntax Description

switch-number

On stacking-capable switches, specifies the switch number, which is the stack member number. If the switch is a standalone switch, the switch number is 1. If the switch is in a stack, the range is 1 to 9, depending on the switch member numbers in the stack.

On nonstacking switches, the switch number is always 1.

all

Displays information for all switches in a stack or for all port groups.

port-group

Displays information for the specified port group or for all port groups.

group-number

Specifies the port being configured. The choice is 1 or 2.

  • Port group 1 is the port labeled Te1/Gi1.
  • Port group 2 is the port labeled Te2/Gi4.

 
Command Modes

Privileged EXEC.

 
Command History

Release
Modification

15.0(1)SE

This command was introduced.

 
Usage Guidelines

The 10-Gigabit slots can operate either in 1 Gigabit per second (Gb/s) or 10 Gb/s.

Examples

This is sample output showing the speed set for both port groups for all switches in a stack. The Active column specifies the speed at which the port is operating:

Switch# show hw-module switch all port-group all
Switch Port-Group Active Inactive
---------------------------------------------
1 1 Te1/1/1 Gi1/1/2
1 2 Te1/1/2 Gi1/1/4
2 1 Te2/1/1 Gi2/1/2
2 2 Te2/1/2 Gi2/1/4
3 1 Te3/1/1 Gi3/1/2
3 2 Te3/1/2 Gi3/1/4
4 1 Te4/1/1 Gi4/1/2
4 2 Te4/1/2 Gi4/1/4
5 1 Te5/1/1 Gi5/1/2
5 2 Gi5/1/4 Te5/1/2
6 1 Gi6/1/2 Te6/1/1
6 2 Gi6/1/4 Te6/1/2
7 1 Te7/1/1 Gi7/1/2
7 2 Te7/1/2 Gi7/1/4
 

This is sample output showing the speed set for only port group 1 for all switches in a stack. The Active column specifies the speed at which the port is operating.

Switch# show hw-module switch all port-group 1
Switch Port-Group Active Inactive
---------------------------------------------
1 1 Te1/1/1 Gi1/1/2
2 1 Te2/1/1 Gi2/1/2
3 1 Te3/1/1 Gi3/1/2
4 1 Te4/1/1 Gi4/1/2
5 1 Te5/1/1 Gi5/1/2
6 1 Gi6/1/2 Te6/1/1
7 1 Te7/1/1 Gi7/1/2
8 1 Te8/1/1 Gi8/1/2
 

This is sample output showing the speed set for both port groups on switch 2 in the stack:

Switch# show hw-module switch 2 port-group all
Switch Port-Group Active Inactive
---------------------------------------------
2 1 Te2/1/1 Gi2/1/2
2 2 Te2/1/2 Gi2/1/4

 
Related Commands

Command
Description

hw-module switch

Sets the port speed for a network module slot.

show idprom interface

Use the show idprom user EXEC command to display the IDPROM information for the specified interface.

show idprom interface interface-id [ detail ]

 
Syntax Description

interface interface-id

Display the IDPROM information for the specified interface.

detail

(Optional) Display detailed hexidecimal IDPROM information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This command applies only to 10-Gigabit Ethernet interfaces and to the SFP module interfaces.

Examples

This is an example of output from the show idprom interface tengigabitethernet1/0/1 command for the 10-Gigabit Ethernet interface.

Switch# show idprom interface tengigabitethernet1/0/1
X2 Serial EEPROM Contents:
Non-Volatile Register (NVR) Fields
X2 MSA Version supported :0xA
NVR Size in bytes :0x100
Number of bytes used :0x100
Basic Field Address :0xB
Customer Field Address :0x77
Vendor Field Address :0xA7
Extended Vendor Field Address :0x100
Reserved :0x0
Transceiver type :0x2 =X2
Optical connector type :0x0 =Unspecified
Bit encoding :0x1 =NRZ
Normal BitRate in multiple of 1M b/s :0x2848
Protocol Type :0x1 =10GgE
 
Standards Compliance Codes :
10GbE Code Byte 0 :0x0 =Unspecified
10GbE Code Byte 1 :0x0
SONET/SDH Code Byte 0 :0x0
SONET/SDH Code Byte 1 :0x0
SONET/SDH Code Byte 2 :0x0
SONET/SDH Code Byte 3 :0x0
10GFC Code Byte 0 :0x0
10GFC Code Byte 1 :0x0
10GFC Code Byte 2 :0x0
10GFC Code Byte 3 :0x0
Transmission range in 10m :0x0
Fibre Type :
Fibre Type Byte 0 :0x0 =Unspecified
Fibre Type Byte 1 :0x0 =Unspecified
 
Centre Optical Wavelength in 0.01nm steps - Channel 0 :0x0 0x0 0x0
Centre Optical Wavelength in 0.01nm steps - Channel 1 :0x0 0x0 0x0
Centre Optical Wavelength in 0.01nm steps - Channel 2 :0x0 0x0 0x0
Centre Optical Wavelength in 0.01nm steps - Channel 3 :0x0 0x0 0x0
Package Identifier OUI :0xC09802
Transceiver Vendor OUI :0x3400B01
Transceiver vendor name :CISCO-OPNEXT,INC
Part number provided by transceiver vendor :TRTC010EN-BMC
Revision level of part number provided by vendor :00
Vendor serial number :OSA093900JK
Vendor manufacturing date code :2005092800
 
Reserved1 : 01 01 20 04 00 01 00
Basic Field Checksum :0x63
 
Customer Writable Area :
0x00: 58 32 2D 31 30 47 42 2D 43 58 34 20 20 20 20 20
0x10: 20 56 30 31 20 4F 53 41 30 39 33 39 30 30 4A 4B
0x20: 31 30 2D 32 31 30 35 2D 30 31 20 20 41 30 20 20
Vendor Specific :
0x00: 1F 01 1C 02 00 00 00 00 00 00 00 00 00 00 00 00
0x10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x30: 00 00 01 00 11 B3 39 9F 5A 51 52 C3 2B 93 E2 A3
0x40: 19 81 34 33 16 00 00 00 00 00 00 00 00 00 AC 76
0x50: 37 FF 00 00 00 00 00 00 00
F8-FF-FB, 3F-0F, 01-00

 
Related Commands

Command
Description

show controllers ethernet-controller

Displays per-interface send and receive statistics read from the hardware, interface internal registers, or port ASIC information.

show interfaces

Use the show interfaces privileged EXEC command to display the administrative and operational status of all interfaces or a specified interface.

show interfaces [ interface-id | vlan vlan-id ] [ accounting | capabilities [ module number ] | counters | description | etherchannel | flowcontrol | private-vlan mapping | pruning | stats | status [ err-disabled ] | switchport [ backup | module number ] | tengigabitethernet interface-id | transceiver [ detail | properties | supported-list ] [ module number ] | trunk ]

 
Syntax Description

interface-id

(Optional) Valid interfaces include physical ports (including type, stack member (stacking-capable switches only) module, and port number) and port channels. The port-channel range is 1 to 48.

vlan vlan-id

(Optional) VLAN identification. The range is 1 to 4094.

accounting

(Optional) Display accounting information on the interface, including active protocols and input and output packets and octets.

Note The display shows only packets processed in software; hardware-switched packets do not appear.

capabilities

(Optional) Display the capabilities of all interfaces or the specified interface, including the features and options that you can configure on the interface. Though visible in the command line help, this option is not available for VLAN IDs.

module number

(Optional) Display capabilities, switchport configuration, or transceiver characteristics (depending on preceding keyword) of all interfaces on the switch or specified stack member.

On Catalyst 3750-X switches, the range is 1 to 9.

On Catalyst 3560-X switches, the only valid module number is 1.

This option is not available if you entered a specific interface ID.

counters

(Optional) See the show interfaces counters command.

description

(Optional) Display the administrative status and description set for an interface.

etherchannel

(Optional) Display interface EtherChannel information.

flowcontrol

(Optional) Display interface flowcontrol information

private-vlan mapping

(Optional) Display private-VLAN mapping information for the VLAN switch virtual interfaces (SVIs). This keyword is not available if the switch is running the LAN base feature set.

stats

(Optional) Display the input and output packets by switching path for the interface.

status

(Optional) Display the status of the interface. A status of unsupported in the Type field means that a non-Cisco small form-factor pluggable (SFP) module is inserted in the module slot.

err-disabled

(Optional) Display interfaces in error-disabled state.

switchport

(Optional) Display the administrative and operational status of a switching (nonrouting) port, including port blocking and port protection settings.

backup

(Optional) Display Flex Link backup interface configuration and status for the specified interface or all interfaces on the switch or the stack.

tengigabitethernet

Display the status of a connected ten-gigabit module.

transceiver [ detail | properties | supported-list ]

See the show interfaces transceivers command.

trunk

Display interface trunk information. If you do not specify an interface, only information for active trunking ports appears.

Note Though visible in the command-line help strings, the crb, fair-queue, irb, mac-accounting, precedence, random-detect, rate-limit, and shape keywords are not supported.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show interfaces capabilities command with different keywords has these results:

  • On Catalyst 3750-X switches, use the show interface capabilities module number command to display the capabilities of all interfaces on that switch in the stack. If there is no switch with that module number in the stack, there is no output.
  • On Catalyst 3560-X switches, use the show interface capabilities module 1 command to display the capabilities of all interfaces on the switch. Any other number is invalid.
  • Use the show interfaces interface-id capabilities to display the capabilities of the specified interface.
  • On Catalyst 3750-X switches, use the show interfaces capabilities (with no module number or interface ID) to display the capabilities of all interfaces in the stack.
  • On Catalyst 3560-X switches, use the show interfaces capabilities (with no module number or interface ID) to display the capabilities of all interfaces on the switch.
  • On Catalyst 3750-X switches, use the show interface switchport module number command to display the switch port characteristics of all interfaces on that switch in the stack. If there is no switch with that module number in the stack, there is no output.
  • On Catalyst 3560-X switches, use the show interface switchport module 1 to display the switch port characteristics of all interfaces on the switch. Any other number is invalid.

Examples

This is an example of output from the show interfaces command for an interface on stack member 3:

Switch# show interfaces gigabitethernet3/0/2
GigabitEthernet3/0/2 is down, line protocol is down
Hardware is Gigabit Ethernet, address is 0009.43a7.d085 (bia 0009.43a7.d085)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
2 packets input, 1040 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
4 packets output, 1040 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
 

This is an example of output from the show interfaces accounting command.

Switch# show interfaces accounting
Vlan1
Protocol Pkts In Chars In Pkts Out Chars Out
IP 1094395 131900022 559555 84077157
Spanning Tree 283896 17033760 42 2520
ARP 63738 3825680 231 13860
Interface Vlan2 is disabled
Vlan7
Protocol Pkts In Chars In Pkts Out Chars Out
No traffic sent or received on this interface.
Vlan31
Protocol Pkts In Chars In Pkts Out Chars Out
No traffic sent or received on this interface.
 
GigabitEthernet1/0/1
Protocol Pkts In Chars In Pkts Out Chars Out
No traffic sent or received on this interface.
GigabitEthernet1/0/2
Protocol Pkts In Chars In Pkts Out Chars Out
No traffic sent or received on this interface.
 
<output truncated>
 

This is an example of output from the show interfaces capabilities command for an interface.

Switch# show interfaces gigabitethernet1/0/2 capabilities
GigabitEthernet1/0/2
Model: WS-xxxxxxxx
Type: 10/100/1000BaseTX
Speed: 10,100,1000,auto
Duplex: full,auto
Trunk encap. type: 802.1Q,ISL
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),tx-(4q2t)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: no
SPAN: source/destination
PortSecure: yes
Dot1x: yes
 

This is an example of output from the show interfaces interface description command when the interface has been described as Connects to Marketing by using the description interface configuration command.

Switch# show interfaces gigabitethernet1/0/2 description
Interface Status Protocol Description
Gi1/0/2 up down Connects to Marketing
 

This is an example of output from the show interfaces etherchannel command when port channels are configured on the switch:

Switch# show interfaces etherchannel
----
Port-channel1:
Age of the Port-channel = 03d:20h:17m:29s
Logical slot/port = 10/1 Number of ports = 0
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel Ag-Not-Inuse
 
Port-channel2:
Age of the Port-channel = 03d:20h:17m:29s
Logical slot/port = 10/2 Number of ports = 0
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel Ag-Not-Inuse
 
Port-channel3:
Age of the Port-channel = 03d:20h:17m:29s
Logical slot/port = 10/3 Number of ports = 0
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel Ag-Not-Inuse
 
This is an example of output from the show interfaces private-vlan mapping command when the private-VLAN primary VLAN is VLAN 10 and the secondary VLANs are VLANs 501 and 502:
Switch# show interfaces private-vlan mapping
Interface Secondary VLAN Type
--------- -------------- -----------------
vlan10 501 isolated
vlan10 502 community
 

This is an example of output from the show interfaces interface-id pruning command when pruning is enabled in the VTP domain:

Switch# show interfaces gigibitethernet1/0/2 pruning
Port Vlans pruned for lack of request by neighbor
Gi1/0/2 3,4
 
Port Vlans traffic requested of neighbor
Gi1/0/2 1-3
 

This is an example of output from the show interfaces stats command for a specified VLAN interface.

Switch# show interfaces vlan 1 stats
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 1165354 136205310 570800 91731594
Route cache 0 0 0 0
Total 1165354 136205310 570800 91731594
 

This is an example of partial output from the show interfaces status command. It displays the status of all interfaces.

Switch# show interfaces status
Port Name Status Vlan Duplex Speed Type
Gi1/0/1 connected routed a-half a-100 10/100/1000BaseTX
Gi1/0/2 notconnect 121,40 auto auto 10/100/1000BaseTX
Gi1/0/3 notconnect 1 auto auto 10/100/1000BaseTX
Gi1/0/4 notconnect 18 auto auto Not Present
Gi1/0/5 connected 121 a-full a-1000 10/100/1000BaseTX
Gi1/0/6 connected 122,11 a-full a-1000 10/100/1000BaseTX
 
<output truncated>
Gi2/0/1 notconnect 1 auto auto 10/100/1000BaseTX
Gi2/0/2 notconnect 1 auto auto unsupported
 
<output truncated>
 

These are examples of output from the show interfaces status command for a specific interface when private VLANs are configured. Port 22 is configured as a private-VLAN host port. It is associated with primary VLAN 20 and secondary VLAN 25.

Switch# show interfaces gigabitethernet1/0/22 status
Port Name Status Vlan Duplex Speed Type
Gi1/0/22 connected 20,25 a-full a-100 10/100BaseTX
 

In this example, port 20 is configured as a private-VLAN promiscuous port. The display shows only the primary VLAN 20.

Switch# show interfaces gigabitethernet1/0/20 status
Port Name Status Vlan Duplex Speed Type
Gi1/0/20 connected 20 a-full a-100 10/100BaseTX
 

This is an example of output from the show interfaces status err-disabled command. It displays the status of interfaces in the error-disabled state.

Switch# show interfaces status err-disabled
Port Name Status Reason
Gi1/0/2 err-disabled gbic-invalid
Gi2/0/3 err-disabled dtp-flap
 

This is an example of output from the show interfaces switchport command for a port. Table 2-34 describes the fields in the display.

Note Private VLAN trunks are not supported in this release, so those fields are not applicable.

Switch# show interfaces gigabitethernet1/0/1 switchport
Name: Gi1/0/1
Switchport: Enabled
Administrative Mode: dynamic auto
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
Administrative private-vlan host-association:10 (VLAN0010) 502 (VLAN0502)
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
 
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
 
Voice VLAN: none (Inactive)
Appliance trust: none
 

 

Table 2-34 show interfaces switchport Field Descriptions

Field
Description

Name

Displays the port name.

Switchport

Displays the administrative and operational status of the port. In this display, the port is in switchport mode.

Administrative Mode

Operational Mode

Displays the administrative and operational modes.

Administrative Trunking Encapsulation

Operational Trunking Encapsulation

Negotiation of Trunking

Displays the administrative and operational encapsulation method and whether trunking negotiation is enabled.

Access Mode VLAN

Displays the VLAN ID to which the port is configured.

Trunking Native Mode VLAN

Trunking VLANs Enabled

Trunking VLANs Active

Lists the VLAN ID of the trunk that is in native mode. Lists the allowed VLANs on the trunk. Lists the active VLANs on the trunk.

Pruning VLANs Enabled

Lists the VLANs that are pruning-eligible.

Protected

Displays whether or not protected port is enabled (True) or disabled (False) on the interface.

Unknown unicast blocked

Unknown multicast blocked

Displays whether or not unknown multicast and unknown unicast traffic is blocked on the interface.

Voice VLAN

Displays the VLAN ID on which voice VLAN is enabled.

Administrative private-vlan host-association

Displays the administrative VLAN association for private-VLAN host ports.

Administrative private-vlan mapping

Displays the administrative VLAN mapping for private-VLAN promiscuous ports.

Operational private-vlan

Displays the operational private-VLAN status.

Appliance trust

Displays the class of service (CoS) setting of the data packets of the IP phone.

This is an example of output from the show interfaces switchport command for a port configured as a private VLAN promiscuous port. The primary VLAN 20 is mapped to secondary VLANs 25, 30 and 35:

Switch# show interface gigabitethernet1/0/2 switchport
Name: Gi1/0/2
Switchport: Enabled
Administrative Mode: private-vlan promiscuous
Operational Mode: private-vlan promiscuous
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: 20 (VLAN0020) 25 (VLAN0025) 30 (VLAN0030) 35 (VLAN0035)
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Operational private-vlan:
20 (VLAN0020) 25 (VLAN0025)
30 (VLAN0030)
35 (VLAN0035)
 
<output truncated>
 

This is an example of output from the show interfaces switchport backup command:

Switch# show interfaces switchport backup
Switch Backup Interface Pairs:
Active Interface Backup Interface State
--------------------------------------------------------------
Gi1/0/1 Gi1/0/2 Active Up/Backup Standby
Gi3/0/3 Gi4/0/5 Active Down/Backup Up
Po1 Po2 Active Standby/Backup Up
 

This is an example of output from the show interfaces interface-id pruning command:

Switch# show interfaces gigibitethernet1/0/2 pruning
Port Vlans pruned for lack of request by neighbor

This is an example of output from the show interfaces swit chport backup command. In this example, VLANs 1 to 50, 60, and 100 to 120 are configured on the switch:

Switch(config)#interface gigabitethernet 2/0/6
Switch(config-if)#switchport backup interface gigabitethernet 2/0/8 prefer vlan 60,100-120
 

When both interfaces are up, Gi2/0/8 forwards traffic for VLANs 60, 100 to 120, and Gi2/0/6 will forward traffic for VLANs 1 to 50.

Switch#show interfaces switchport backup
Switch Backup Interface Pairs:
 
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet2/0/6 GigabitEthernet2/0/8 Active Up/Backup Up
 
Vlans on Interface Gi 2/0/6: 1-50
Vlans on Interface Gi 2/0/8: 60, 100-120
 

When a Flex Link interface goes down (LINK_DOWN), VLANs preferred on this interface are moved to the peer interface of the Flex Link pair. In this example, if interface Gi2/0/6 goes down, Gi2/0/8 carries all VLANs of the Flex Link pair.

Switch#show interfaces switchport backup
Switch Backup Interface Pairs:
 
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet2/0/6 GigabitEthernet2/0/8 Active Down/Backup Up
 
Vlans on Interface Gi 2/0/6:
Vlans on Interface Gi 2/0/8: 1-50, 60, 100-120
 

When a Flex Link interface comes up, VLANs preferred on this interface are blocked on the peer interface and moved to the forwarding state on the interface that has just come up. In this example, if interface Gi2/0/6 comes up, then VLANs preferred on this interface are blocked on the peer interface Gi2/0/8 and forwarded on Gi2/0/6.

Switch#show interfaces switchport backup
Switch Backup Interface Pairs:
 
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet2/0/6 GigabitEthernet2/0/8 Active Up/Backup Up
 
Vlans on Interface Gi 2/0/6: 1-50
Vlans on Interface Gi 2/0/8: 60, 100-120
 

This is an example of out put from the show interfaces switchport backup command when a Flex Link interface goes down (LINK_DOWN), and VLANs preferred on this interface are moved to the peer interface of the Flex Link pair. In this example, if interface Gi2/0/6 goes down, Gi2/0/8 carries all VLANs of the Flex Link pair.

Switch#show interfaces switchport backup
Switch Backup Interface Pairs:
 
Active Interface Backup Interface State
------------------------------------------------------------------------
GigabitEthernet2/0/6 GigabitEthernet2/0/8 Active Down/Backup Up
 
Vlans Preferred on Active Interface: 1-50
Vlans Preferred on Backup Interface: 60, 100-120
 

This is an example of output from the show interfaces interface-id trunk command. It displays trunking information for the port.

Switch# show interfaces gigabitethernet1/0/1 trunk
Port Mode Encapsulation Status Native vlan
Gi1/0/1 auto negotiate trunking 1
 
Port Vlans allowed on trunk
Gi1/0/1 1-4094
 
Port Vlans allowed and active in management domain
Gi1/0/1 1-4
 
Port Vlans in spanning tree forwarding state and not pruned
Gi1/0/1 1-4
 

This is an example of output from the show interfaces interface-id transceiver properties command:

Switch# show interfaces gigabitethernet1/0/1 transceiver properties
Name : Gi1/0/1
Administrative Speed: auto
Operational Speed: auto
Administrative Duplex: auto
Administrative Power Inline: enable
Operational Duplex: auto
Administrative Auto-MDIX: off
Operational Auto-MDIX: off
 

This is an example of output from the show interfaces interface-id transceiver detail command:

Switch# show interfaces gigabitethernet2/0/3 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is externally calibrated.
mA:milliamperes, dBm:decibels (milliwatts), N/A:not applicable.
++:high alarm, +:high warning, -:low warning, -- :low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are uncalibrated.
 
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
------- ------------------ ---------- --------- --------- ---------
Gi2/0/3 41.5 110.0 103.0 -8.0 -12.0
 
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
------- --------------- ---------- --------- --------- ---------
Gi2/0/3 3.20 4.00 3.70 3.00 2.95
 
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
------- ----------------- ---------- --------- --------- ---------
Gi2/0/3 31.0 84.0 70.0 4.0 2.0
 
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Gi2/0/3 -0.0 ( -0.0) -0.0 -0.0 -0.0 -0.0
 
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Gi2/0/3 N/A ( -0.0) -- -0.0 -0.0 -0.0 -0.0
 

This is an example of output from the show interfaces tengigabitethernet interface-id transceiver detail command:

Switch# show interfaces tengigabitethernet1/0/1 transceiver detail
Transceiver monitoring is disabled for all interfaces.
 
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
--------- ------------------ ---------- --------- --------- ---------
Te1/0/1 26.8 70.0 60.0 5.0 0.0
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
--------- --------------- ---------- --------- --------- ---------
Te1/0/1 3.15 3.63 3.63 2.97 2.97
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
--------- ----------------- ---------- --------- --------- ---------
Te1/0/1 5.0 16.3 15.3 3.9 3.2
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ----------------- ---------- --------- --------- ---------
Te1/0/1 -1.9 1.0 0.5 -8.2 -8.5
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Te1/0/1 -1.4 1.0 0.5 -14.1 -15.0
 

This is an example of output from the show interfaces tengigabitethernet interface-id transceiver properties command:

Switch# show interfaces tengigabitethernet1/0/1 transceiver properties
Transceiver monitoring is disabled for all interfaces.
 
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
Name : Te1/0/1
Administrative Speed: 10000
Administrative Duplex: full
Administrative Auto-MDIX: on
Administrative Power Inline: N/A
Operational Speed: 10000
Operational Duplex: full
Operational Auto-MDIX: off
Media Type: 10GBase-LR
 

 
Related Commands

Command
Description

switchport access

Configures a port as a static-access or a dynamic-access port.

switchport block

Blocks unknown unicast or multicast traffic on an interface.

switchport backup interface

Configures Flex Links, a pair of Layer 2 interfaces that provide mutual backup.

switchport mode

Configures the VLAN membership mode of a port.

switchport mode private-vlan

Configures a port as a private-VLAN host or a promiscuous port.

switchport private-vlan

Defines private-VLAN association for a host port or private-VLAN mapping for a promiscuous port.

switchport protected

Isolates unicast, multicast, and broadcast traffic at Layer 2 from other protected ports on the same switch.

switchport trunk pruning

Configures the VLAN pruning-eligible list for ports in trunking mode.

show interfaces counters

Use the show interfaces counters privileged EXEC command to display various counters for the switch or for a specific interface.

show interfaces [ interface-id | vlan vlan-id ] counters [ errors | etherchannel | module switch- number | protocol status | trunk ]

 
Syntax Description

interface-id

(Optional) ID of the physical interface, including type, stack member (stacking-capable switches only) module, and port number.

errors

(Optional) Display error counters.

etherchannel

(Optional) Display EtherChannel counters, including octets, broadcast packets, multicast packets, and unicast packets received and sent.

module switch- number

(Optional) Display counters for the specified stack member. The range is from 1 to 9, depending upon the switch numbers in the stack.

This keyword is available only on stacking-capable switches.

Note In this command, the module keyword refers to the stack member number (1 to 9). The module number that is part of the interface ID is always zero.

protocol status

(Optional) Display status of protocols enabled on interfaces.

trunk

(Optional) Display trunk counters.

Note Though visible in the command-line help string, the vlan vlan-id keyword is not supported.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

If you do not enter any keywords, all counters for all interfaces are included.

Examples

This is an example of partial output from the show interfaces counters command. It displays all counters for the switch.

Switch# show interfaces counters
Port InOctets InUcastPkts InMcastPkts InBcastPkts
Gi1/0/1 0 0 0 0
Gi1/0/2 0 0 0 0
 
<output truncated>
 

This is an example of partial output from the show interfaces counters module command for stack member 2. It displays all counters for the specified switch in the stack.

Switch# show interfaces counters module 2
Port InOctets InUcastPkts InMcastPkts InBcastPkts
Gi2/0/1 520 2 0 0
Gi2/0/2 520 2 0 0
Gi2/0/3 520 2 0 0
Gi2/0/4 520 2 0 0
Gi2/0/5 520 2 0 0
Gi2/0/6 520 2 0 0
Gi2/0/7 520 2 0 0
Gi2/0/8 520 2 0 0
 
<output truncated>
 

This is an example of partial output from the show interfaces counters protocol status command for all interfaces.

Switch# show interfaces counters protocol status
Protocols allocated:
Vlan1: Other, IP
Vlan20: Other, IP, ARP
Vlan30: Other, IP, ARP
Vlan40: Other, IP, ARP
Vlan50: Other, IP, ARP
Vlan60: Other, IP, ARP
Vlan70: Other, IP, ARP
Vlan80: Other, IP, ARP
Vlan90: Other, IP, ARP
Vlan900: Other, IP, ARP
Vlan3000: Other, IP
Vlan3500: Other, IP
GigabitEthernet1/0/1: Other, IP, ARP, CDP
GigabitEthernet1/0/2: Other, IP
GigabitEthernet1/0/3: Other, IP
GigabitEthernet1/0/4: Other, IP
GigabitEthernet1/0/5: Other, IP
GigabitEthernet1/0/6: Other, IP
GigabitEthernet1/0/7: Other, IP
GigabitEthernet1/0/8: Other, IP
GigabitEthernet1/0/9: Other, IP
GigabitEthernet1/0/10: Other, IP, CDP
 
<output truncated>
 

This is an example of output from the show interfaces counters trunk command. It displays trunk counters for all interfaces.

Switch# show interfaces counters trunk
Port TrunkFramesTx TrunkFramesRx WrongEncap
Gi1/0/1 0 0 0
Gi1/0/2 0 0 0
Gi1/0/3 80678 4155 0
Gi1/0/4 82320 126 0
Gi1/0/5 0 0 0
 
<output truncated>

 
Related Commands

Command
Description

show interfaces

Displays additional interface characteristics.

show interfaces rep

To display Resilient Ethernet Protocol (REP) configuration and status for a specified interface or for all interfaces, use the show interfaces rep user EXEC command.

show interfaces [ interface-id ] rep [ detail ]

 
Syntax Description

interface-id

(Optional) Displays REP configuration and status for a specified physical interface or port channel ID.

detail

(Optional) Displays detailed REP configuration and status information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

15.0(2)SE

This command was introduced.

 
Usage Guidelines

In the output for the show interface rep [ detail ] command, in addition to an Open, Fail, or AP (alternate port) state, the Port Role might show as Fail Logical Open (FailLogOpen) or Fail No Ext Neighbor (FailNoNbr). These states indicate that the port is physically up, but REP is not configured on the neighboring port. In this case, one port goes into a forwarding state for the data path to help maintain connectivity during configuration. The Port Role for this port shows as Fail Logical Open; the port forwards all data traffic on all VLANs. The other failed Port Role shows as Fail No Ext Neighbor; this port blocks traffic for all VLANs.

When the external neighbors for the failed ports are configured, the failed ports go through the alternate port state transitions and eventually go to an Open state or remain as the alternate port, based on the alternate port election operation.

Examples

This is sample output from the show interface rep command:

Switch # show interface rep
Interface Seg-id Type LinkOp Role
---------------------- ------ ------------ ----------- ----
GigabitEthernet1/0/1 1 Primary Edge TWO_WAY Open
GigabitEthernet1/0/2 1 Edge TWO_WAY Open
FastEthernet1/0/4 2 INIT_DOWN Fail
 

This is sample output from the show interface rep command when external neighbors are not configured:

Switch # show interface rep
Interface Seg-id Type LinkOp Role
---------------------- ------ ------------ ----------- ----
GigabitEthernet1/0/1 1 NO_NEIGHBOR FailNoNbr
GigabitEthernet1/0/2 2 NO_NEIGHBOR FailLogOpen
 

This is sample output from the show interface rep detail command for a specified interface:

Switch # show interface gigabitethernet0/2 rep detail
GigabitEthernet0/2 REP enabled
Segment-id: 1 (Segment)
PortID: 00030019E85BDD00
Preferred flag: No
Operational Link Status: INIT_DOWN
Current Key: 00000000000000000000
Port Role: Fail
Blocked VLAN: 1-4094
Admin-vlan: 1
Preempt Delay Timer: disabled
LSL Ageout Timer: 5000 ms
Configured Load-balancing Block Port: 1234567890123456
Configured Load-balancing Block VLAN: 1-4094
STCN Propagate to: none
LSL PDU rx: 0, tx: 0
HFL PDU rx: 0, tx: 0
BPA TLV rx: 0, tx: 0
BPA (STCN, LSL) TLV rx: 0, tx: 0
BPA (STCN, HFL) TLV rx: 0, tx: 0
EPA-ELECTION TLV rx: 0, tx: 0
EPA-COMMAND TLV rx: 0, tx: 0
EPA-INFO TLV rx: 0, tx: 0

 
Related Commands

Command
Description

rep segment

Enables REP on an interface and assigns a segment ID. This command is also used to configure a port as an edge port, a primary edge port, or a preferred port.

show rep topology [ detail ]

Displays information about all ports in the segment, including which one was configured and selected as the primary edge port.

show interfaces transceivers

Use the show interfaces transceivers privileged EXEC command to display the physical properties of a small form-factor pluggable (SFP) module interface.

show interfaces [ interface-id] transceiver [ detail | supported-list | module number | properties | threshold-table ]

 
Syntax Description

interface-id

(Optional) Display configuration and status for a specified physical interface.

detail

(Optional) Display calibration properties, including high and low numbers and any alarm information for any Digital Optical Monitoring (DoM)-capable transceiver if one is installed in the switch.

supported-list

(Optional) List all supported DoM transceivers.

module number

(Optional) Limit display to interfaces on module on the switch. The range is 1 to 9. This option is not available if you entered a specific interface ID.

properties

( Optional) Display speed, duplex, and inline power settings on an interface.

threshold-table

(Optional) Display alarm and warning threshold table

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show interfaces interface-id transceiver properties command:

Switch# show interfaces gigabitethernet1/0/1 transceiver properties
Name : Gi1/0/1
Administrative Speed: auto
Operational Speed: auto
Administrative Duplex: auto
Administrative Power Inline: enable
Operational Duplex: auto
Administrative Auto-MDIX: off
Operational Auto-MDIX: off
 

This is an example of output from the show interfaces interface-id transceiver detail command:

Switch# show interfaces gigabitethernet1/0/3 transceiver detail
ITU Channel not available (Wavelength not available),
Transceiver is externally calibrated.
mA:milliamperes, dBm:decibels (milliwatts), N/A:not applicable.
++:high alarm, +:high warning, -:low warning, -- :low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are uncalibrated.
 
High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
------- ------------------ ---------- --------- --------- ---------
Gi1/0/3 41.5 110.0 103.0 -8.0 -12.0
 
High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
------- --------------- ---------- --------- --------- ---------
Gi1/0/3 3.20 4.00 3.70 3.00 2.95
 
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
------- ----------------- ---------- --------- --------- ---------
Gi1/0/3 31.0 84.0 70.0 4.0 2.0
 
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Gi1/0/3 -0.0 ( -0.0) -0.0 -0.0 -0.0 -0.0
 
Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Gi1/0/3 N/A ( -0.0) -- -0.0 -0.0 -0.0 -0.0
 

This is an example of output from the show interfaces transceiver supported-list command:

Switch# show interfaces transceiver supported-list
Transceiver Type Cisco p/n min version
supporting DOM
------------------ -------------------------
 
DWDM GBIC ALL
DWDM SFP ALL
RX only WDM GBIC ALL
DWDM XENPAK ALL
DWDM X2 ALL
DWDM XFP ALL
CWDM GBIC NONE
CWDM X2 ALL
CWDM XFP ALL
XENPAK ZR ALL
X2 ZR ALL
XFP ZR ALL
Rx_only_WDM_XENPAK ALL
XENPAK_ER 10-1888-03
X2_ER ALL
XFP_ER ALL
XENPAK_LR 10-1838-04
X2_LR ALL
<output truncated>
 

This is an example of output from the show interfaces transceiver threshold-table command:

Optical Tx Optical Rx Temp Laser Bias Voltage
current
------------- ------------- ------ ------------ ---------
 
DWDM GBIC
Min1 -0.50 -28.50 0 N/A 4.50
Min2 -0.30 -28.29 5 N/A 4.75
Max2 3.29 -6.69 60 N/A 5.25
Max1 3.50 6.00 70 N/A 5.50
DWDM SFP
Min1 -0.50 -28.50 0 N/A 3.00
Min2 -0.30 -28.29 5 N/A 3.09
Max2 4.30 -9.50 60 N/A 3.59
Max1 4.50 9.30 70 N/A 3.70
RX only WDM GBIC
Min1 N/A -28.50 0 N/A 4.50
Min2 N/A -28.29 5 N/A 4.75
Max2 N/A -6.69 60 N/A 5.25
Max1 N/A 6.00 70 N/A 5.50
DWDM XENPAK
Min1 -1.50 -24.50 0 N/A N/A
Min2 -1.29 -24.29 5 N/A N/A
Max2 3.29 -6.69 60 N/A N/A
Max1 3.50 4.00 70 N/A N/A
DWDM X2
Min1 -1.50 -24.50 0 N/A N/A
Min2 -1.29 -24.29 5 N/A N/A
Max2 3.29 -6.69 60 N/A N/A
Max1 3.50 4.00 70 N/A N/A
DWDM XFP
Min1 -1.50 -24.50 0 N/A N/A
Min2 -1.29 -24.29 5 N/A N/A
Max2 3.29 -6.69 60 N/A N/A
Max1 3.50 4.00 70 N/A N/A
CWDM X2
Min1 N/A N/A 0 N/A N/A
Min2 N/A N/A 0 N/A N/A
Max2 N/A N/A 0 N/A N/A
Max1 N/A N/A 0 N/A N/A

 
Related Commands

Command
Description

show interfaces

Displays additional interface characteristics.

show inventory

Use the show inventory user EXEC command to display product identification (PID) information for the hardware.

show inventory [ entity-name | raw ]

 
Syntax Description

entity-name

(Optional) Display the specified entity. For example, enter the interface (such as gigabitethernet1/0/1) into which a small form-factor pluggable (SFP) module is installed.

raw

(Optional) Display every entity in the device.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The command is case sensitive. With no arguments, the show inventory command produces a compact dump of all identifiable entities that have a product identifier. The compact dump displays the entity location (slot identity), entity description, and the unique device identifier (UDI) (PID, VID, and SN) of that entity.

Note If there is no PID, no output appears when you enter the show inventory command.

Examples

This is example output from the show inventory command:

Switch> show inventory
NAME: "5", DESCR: "WS-xxxxxxxx"
PID: WS-xxxxxxx, VID: E0, SN: CAT0749R204

show ip arp inspection

Use the show ip arp inspection privileged EXEC command to display the configuration and the operating state of dynamic Address Resolution Protocol (ARP) inspection or the status of this feature for all VLANs or for the specified interface or VLAN.

show ip arp inspection [ interfaces [ interface-id ] | log | statistics [ vlan vlan-range ] | vlan vlan-range ]

This command is available only if your switch is running the IP services feature set.

 
Syntax Description

interfaces [ interface-id ]

(Optional) Display the trust state and the rate limit of ARP packets for the specified interface or all interfaces. Valid interfaces include physical ports and port channels.

log

(Optional) Display the configuration and contents of the dynamic ARP inspection log buffer.

statistics [ vlan vlan-range ]

(Optional) Display statistics for forwarded, dropped, MAC validation failure, IP validation failure, access control list (ACL) permitted and denied, and DHCP permitted and denied packets for the specified VLAN. If no VLANs are specified or if a range is specified, display information only for VLANs with dynamic ARP inspection enabled (active).

You can specify a single VLAN identified by VLAN ID number, a range of VLANs separated by a hyphen, or a series of VLANs separated by a comma. The range is 1 to 4094.

vlan vlan-range

(Optional) Display the configuration and the operating state of dynamic ARP inspection for the specified VLAN. If no VLANs are specified or if a range is specified, display information only for VLANs with dynamic ARP inspection enabled (active).

You can specify a single VLAN identified by VLAN ID number, a range of VLANs separated by a hyphen, or a series of VLANs separated by a comma. The range is 1 to 4094.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show ip arp inspection command

Switch# show ip arp inspection
 
Source Mac Validation : Disabled
Destination Mac Validation : Disabled
IP Address Validation : Enabled
 
Vlan Configuration Operation ACL Match Static ACL
---- ------------- --------- --------- ----------
1 Enabled Active deny-all No
 
Vlan ACL Logging DHCP Logging Probe Logging
---- ----------- ------------ -------------
1 Acl-Match All Permit
 
Vlan Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ---------
1 0 0 0 0
 
Vlan DHCP Permits ACL Permits Probe Permits Source MAC Failures
---- ------------ ----------- ------------- -------------------
1 0 0 0 0
 
Vlan Dest MAC Failures IP Validation Failures Invalid Protocol Data
---- ----------------- ---------------------- ---------------------
1 0 0 0
 

This is an example of output from the show ip arp inspection interfaces command:

Switch# show ip arp inspection interfaces
Interface Trust State Rate (pps) Burst Interval
--------------- ----------- ---------- --------------
Gi1/0/1 Untrusted 15 1
Gi1/0/2 Untrusted 15 1
Gi1/0/3 Untrusted 15 1
 

This is an example of output from the show ip arp inspection interfaces interface-id command:

Switch# show ip arp inspection interfaces gigabitethernet1/0/1
Interface Trust State Rate (pps) Burst Interval
--------------- ----------- ---------- --------------
Gi1/0/1 Untrusted 15 1
 

This is an example of output from the show ip arp inspection log command. It shows the contents of the log buffer before the buffers are cleared:

Switch# show ip arp inspection log
Total Log Buffer Size : 32
Syslog rate : 10 entries per 300 seconds.
 
Interface Vlan Sender MAC Sender IP Num Pkts Reason Time
---------- ---- -------------- --------------- --------- ----------- ----
Gi1/0/1 5 0003.0000.d673 192.2.10.4 5 DHCP Deny 19:39:01 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.0000.d774 128.1.9.25 6 DHCP Deny 19:39:02 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.c940.1111 10.10.10.1 7 DHCP Deny 19:39:03 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.c940.1112 10.10.10.2 8 DHCP Deny 19:39:04 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.c940.1114 173.1.1.1 10 DHCP Deny 19:39:06 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.c940.1115 173.1.1.2 11 DHCP Deny 19:39:07 UTC Mon Mar 1 1993
Gi1/0/1 5 0001.c940.1116 173.1.1.3 12 DHCP Deny 19:39:08 UTC Mon Mar 1 1993
 

If the log buffer overflows, it means that a log event does not fit into the log buffer, and the display for the show ip arp inspection log privileged EXEC command is affected. A -- in the display appears in place of all data except the packet count and the time. No other statistics are provided for the entry. If you see this entry in the display, increase the number of entries in the log buffer, or increase the logging rate in the ip arp inspection log-buffer global configuration command.

This is an example of output from the show ip arp inspection statistics command. It shows the statistics for packets that have been processed by dynamic ARP inspection for all active VLANs.

Switch# show ip arp inspection statistics
Vlan Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ---------
5 3 4618 4605 4
2000 0 0 0 0
 
Vlan DHCP Permits ACL Permits Source MAC Failures
---- ------------ ----------- -------------------
5 0 12 0
2000 0 0 0
 
Vlan Dest MAC Failures IP Validation Failures
---- ----------------- ----------------------
5 0 9
2000 0 0
 

For the show ip arp inspection statistics command, the switch increments the number of forwarded packets for each ARP request and response packet on a trusted dynamic ARP inspection port. The switch increments the number of ACL or DHCP permitted packets for each packet that is denied by source MAC, destination MAC, or IP validation checks, and the switch increments the appropriate failure count.

This is an example of output from the show ip arp inspection statistics vlan 5 command. It shows statistics for packets that have been processed by dynamic ARP for VLAN 5.

Switch# show ip arp inspection statistics vlan 5
Vlan Forwarded Dropped DHCP Drops ACL Drops
---- --------- ------- ---------- ---------
5 3 4618 4605 4
 
Vlan DHCP Permits ACL Permits Source MAC Failures
---- ------------ ----------- -------------------
5 0 12 0
 
Vlan Dest MAC Failures IP Validation Failures Invalid Protocol Data
---- ----------------- ---------------------- ---------------------
5 0 9 3
 

This is an example of output from the show ip arp inspection vlan 5 command. It shows the configuration and the operating state of dynamic ARP inspection for VLAN 5.

Switch# show ip arp inspection vlan 5
Source Mac Validation :Enabled
Destination Mac Validation :Enabled
IP Address Validation :Enabled
 
Vlan Configuration Operation ACL Match Static ACL
---- ------------- --------- --------- ----------
5 Enabled Active second No
 
Vlan ACL Logging DHCP Logging
---- ----------- ------------
5 Acl-Match All

 
Related Commands

Command
Description

arp access-list

Defines an ARP ACL.

clear ip arp inspection log

Clears the dynamic ARP inspection log buffer.

clear ip arp inspection statistics

Clears the dynamic ARP inspection statistics.

ip arp inspection log-buffer

Configures the dynamic ARP inspection logging buffer.

ip arp inspection vlan logging

Controls the type of packets that are logged per VLAN.

show arp access-list

Displays detailed information about ARP access lists.

show ip dhcp snooping

Use the show ip dhcp snooping user EXEC command to display the DHCP snooping configuration.

show ip dhcp snooping

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

This command displays only the results of global configuration. Therefore, in this example, the circuit ID suboption appears in its default format of vlan - mod - port, even if a string is configured for the circuit ID.

Examples

This is an example of output from the show ip dhcp snooping command:

Switch> show ip dhcp snooping
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
40-42
Insertion of option 82 is enabled
circuit-id format: vlan-mod-port
remote-id format: string
Option 82 on untrusted port is allowed
Verification of hwaddr field is enabled
Interface Trusted Rate limit (pps)
------------------------ ------- ----------------
GigabitEthernet1/0/1 yes unlimited
GigabitEthernet1/0/2 yes unlimited
GigabitEthernet1/0/3 no 2000
GigabitEthernet1/0/4 yes unlimited

 
Related Commands

Command
Description

show ip dhcp snooping binding

Displays the DHCP snooping binding information.

show ip dhcp snooping binding

Use the show ip dhcp snooping binding user EXEC command to display the DHCP snooping binding database and configuration information for all interfaces on a switch.

show ip dhcp snooping binding [ ip-address ] [ mac-address ] [ interface interface-id ] [ vlan vlan-id ]

 
Syntax Description

ip-address

(Optional) Specify the binding entry IP address.

mac-address

(Optional) Specify the binding entry MAC address.

interface interface-id

(Optional) Specify the binding input interface.

vlan vlan-id

(Optional) Specify the binding entry VLAN.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show ip dhcp snooping binding command output shows only the dynamically configured bindings. Use the show ip source binding privileged EXEC command to display the dynamically and statically configured bindings in the DHCP snooping binding database.

If DHCP snooping is enabled and an interface changes to the down state, the switch does not delete the statically configured bindings.

Examples

This example shows how to display the DHCP snooping binding entries for a switch:

Switch> show ip dhcp snooping binding
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
01:02:03:04:05:06 10.1.2.150 9837 dhcp-snooping 20 GigabitEthernet2/0/1
00:D0:B7:1B:35:DE 10.1.2.151 237 dhcp-snooping 20 GigabitEthernet2/0/2
Total number of bindings: 2
 

This example shows how to display the DHCP snooping binding entries for a specific IP address:

Switch> show ip dhcp snooping binding 10.1.2.150
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
01:02:03:04:05:06 10.1.2.150 9810 dhcp-snooping 20 GigabitEthernet2/0/1
Total number of bindings: 1
 

This example shows how to display the DHCP snooping binding entries for a specific MAC address:

Switch> show ip dhcp snooping binding 0102.0304.0506
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
01:02:03:04:05:06 10.1.2.150 9788 dhcp-snooping 20 GigabitEthernet2/0/2
Total number of bindings: 1
 

This example shows how to display the DHCP snooping binding entries on a port:

Switch> show ip dhcp snooping binding interface gigabitethernet2/0/2
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
00:30:94:C2:EF:35 10.1.2.151 290 dhcp-snooping 20 GigabitEthernet2/0/2
Total number of bindings: 1
 

This example shows how to display the DHCP snooping binding entries on VLAN 20:

Switch> show ip dhcp snooping binding vlan 20
MacAddress IpAddress Lease(sec) Type VLAN Interface
------------------ --------------- ---------- ------------- ---- --------------------
01:02:03:04:05:06 10.1.2.150 9747 dhcp-snooping 20 GigabitEthernet2/0/1
00:00:00:00:00:02 10.1.2.151 65 dhcp-snooping 20 GigabitEthernet2/0/2
Total number of bindings: 2
 

Table 2-35 describes the fields in the show ip dhcp snooping binding command output:

 

Table 2-35 show ip dhcp snooping binding Command Output

Field
Description

MacAddress

Client hardware MAC address

IpAddress

Client IP address assigned from the DHCP server

Lease(sec)

Remaining lease time for the IP address

Type

Binding type

VLAN

VLAN number of the client interface

Interface

Interface that connects to the DHCP client host

Total number of bindings

Total number of bindings configured on the switch

Note The command output might not show the total number of bindings. For example, if 200 bindings are configured on the switch and you stop the display before all the bindings appear, the total number does not change.

 
Related Commands

Command
Description

ip dhcp snooping binding

Configures the DHCP snooping binding database

show ip dhcp snooping

Displays the DHCP snooping configuration.

show ip dhcp snooping database

Use the show ip dhcp snooping database user EXEC command to display the status of the DHCP snooping binding database agent.

show ip dhcp snooping database [ detail ]

This command is available only if your switch is running the IP services feature set.

 
Syntax Description

detail

(Optional) Display detailed status and statistics information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show ip dhcp snooping database command:

Switch> show ip dhcp snooping database
Agent URL :
Write delay Timer : 300 seconds
Abort Timer : 300 seconds
 
Agent Running : No
Delay Timer Expiry : Not Running
Abort Timer Expiry : Not Running
 
Last Succeded Time : None
Last Failed Time : None
Last Failed Reason : No failure recorded.
 
Total Attempts : 0 Startup Failures : 0
Successful Transfers : 0 Failed Transfers : 0
Successful Reads : 0 Failed Reads : 0
Successful Writes : 0 Failed Writes : 0
Media Failures : 0
 

This is an example of output from the show ip dhcp snooping database detail command:

Switch# show ip dhcp snooping database detail
Agent URL : tftp://10.1.1.1/directory/file
Write delay Timer : 300 seconds
Abort Timer : 300 seconds
 
Agent Running : No
Delay Timer Expiry : 7 (00:00:07)
Abort Timer Expiry : Not Running
 
Last Succeded Time : None
Last Failed Time : 17:14:25 UTC Sat Jul 7 2001
Last Failed Reason : Unable to access URL.
 
Total Attempts : 21 Startup Failures : 0
Successful Transfers : 0 Failed Transfers : 21
Successful Reads : 0 Failed Reads : 0
Successful Writes : 0 Failed Writes : 21
Media Failures : 0
 
First successful access: Read
 
Last ignored bindings counters :
Binding Collisions : 0 Expired leases : 0
Invalid interfaces : 0 Unsupported vlans : 0
Parse failures : 0
Last Ignored Time : None
 
Total ignored bindings counters:
Binding Collisions : 0 Expired leases : 0
Invalid interfaces : 0 Unsupported vlans : 0
Parse failures : 0

 
Related Commands

Command
Description

ip dhcp snooping

Enables DHCP snooping on a VLAN.

ip dhcp snooping database

Configures the DHCP snooping binding database agent or the binding file.

show ip dhcp snooping

Displays DHCP snooping information.

show ip dhcp snooping statistics

Use the show ip dhcp snooping statistics user EXEC command to display DHCP snooping statistics in summary or detail form.

show ip dhcp snooping statistics [ detail ]

 
Syntax Description

detail

(Optional) Display detailed statistics information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

In a switch stack, all statistics are generated on the stack master. If a new stack master is elected, the statistics counters reset.

Examples

This is an example of output from the show ip dhcp snooping statistics command:

Switch> show ip dhcp snooping statistics
Packets Forwarded = 0
Packets Dropped = 0
Packets Dropped From untrusted ports = 0
 

This is an example of output from the show ip dhcp snooping statistics detail command:

Switch> show ip dhcp snooping statistics detail
Packets Processed by DHCP Snooping = 0
Packets Dropped Because
IDB not known = 0
Queue full = 0
Interface is in errdisabled = 0
Rate limit exceeded = 0
Received on untrusted ports = 0
Nonzero giaddr = 0
Source mac not equal to chaddr = 0
Binding mismatch = 0
Insertion of opt82 fail = 0
Interface Down = 0
Unknown output interface = 0
Reply output port equal to input port = 0
Packet denied by platform = 0
 

Table 2-36 shows the DHCP snooping statistics and their descriptions:

 

Table 2-36 DHCP Snooping Statistics

DHCP Snooping Statistic
Description

Packets Processed by DHCP Snooping

Total number of packets handled by DHCP snooping, including forwarded and dropped packets.

Packets Dropped Because IDB not known

Number of errors when the input interface of the packet cannot be determined.

Queue full

Number of errors when an internal queue used to process the packets is full. This might happen if DHCP packets are received at an excessively high rate and rate limiting is not enabled on the ingress ports.

Interface is in errdisabled

Number of times a packet was received on a port that has been marked as error disabled. This might happen if packets are in the processing queue when a port is put into the error-disabled state and those packets are subsequently processed.

Rate limit exceeded

Number of times the rate limit configured on the port was exceeded and the interface was put into the error-disabled state.

Received on untrusted ports

Number of times a DHCP server packet (OFFER, ACK, NAK, or LEASEQUERY) was received on an untrusted port and was dropped.

Nonzero giaddr

Number of times the relay agent address field (giaddr) in the DHCP packet received on an untrusted port was not zero, or the no ip dhcp snooping information option allow-untrusted global configuration command is not configured and a packet received on an untrusted port contained option-82 data.

Source mac not equal to chaddr

Number of times the client MAC address field of the DHCP packet (chaddr) does not match the packet source MAC address and the ip dhcp snooping verify mac-address global configuration command is configured.

Binding mismatch

Number of times a RELEASE or DECLINE packet was received on a port that is different than the port in the binding for that MAC address-VLAN pair. This indicates someone might be trying to spoof the real client, or it could mean that the client has moved to another port on the switch and issued a RELEASE or DECLINE. The MAC address is taken from the chaddr field of the DHCP packet, not the source MAC address in the Ethernet header.

Insertion of opt82 fail

Number of times the option-82 insertion into a packet failed. The insertion might fail if the packet with the option-82 data exceeds the size of a single physical packet on the internet.

Interface Down

Number of times the packet is a reply to the DHCP relay agent, but the SVI interface for the relay agent is down. This is an unlikely error that occurs if the SVI goes down between sending the client request to the DHCP server and receiving the response.

Unknown output interface

Number of times the output interface for a DHCP reply packet cannot be determined by either option-82 data or a lookup in the MAC address table. The packet is dropped. This can happen if option 82 is not used and the client MAC address has aged out. If IPSG is enabled with the port-security option and option 82 is not enabled, the MAC address of the client is not learned, and the reply packets will be dropped.

Reply output port equal to input port

Number of times the output port for a DHCP reply packet is the same as the input port, causing a possible loop. Indicates a possible network misconfiguration or misuse of trust settings on ports.

Packet denied by platform

Number of times the packet has been denied by a platform-specific registry.

 
Related Commands

Command
Description

clear ip dhcp snooping

Clears the DHCP snooping binding database, the DHCP snooping binding database agent statistics, or the DHCP snooping statistics counters.

show ip igmp profile

Use the show ip igmp profile privileged EXEC command to display all configured Internet Group Management Protocol (IGMP) profiles or a specified IGMP profile.

show ip igmp profile [ profile number ]

 
Syntax Description

profile number

(Optional) The IGMP profile number to be displayed. The range is 1 to 4294967295. If no profile number is entered, all IGMP profiles are displayed.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

These are examples of output from the show ip igmp profile privileged EXEC command, with and without specifying a profile number. If no profile number is entered, the display includes all profiles configured on the switch.

Switch# show ip igmp profile 40
IGMP Profile 40
permit
range 233.1.1.1 233.255.255.255
 
Switch# show ip igmp profile
IGMP Profile 3
range 230.9.9.0 230.9.9.0
IGMP Profile 4
permit
range 229.9.9.0 229.255.255.255

 
Related Commands

Command
Description

ip igmp profile

Configures the specified IGMP profile number.

show ip igmp snooping

Use the show ip igmp snooping user EXEC command to display the Internet Group Management Protocol (IGMP) snooping configuration of the switch or the VLAN.

show ip igmp snooping [ groups | mrouter | querier ] [ vlan vlan-id ]

 
Syntax Description

groups

(Optional) See the show ip igmp snooping groups command.

mrouter

(Optional) See the show ip igmp snooping mrouter command.

querier

(Optional) See the show ip igmp snooping querier command.

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094 (available only in privileged EXEC mode).

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display snooping configuration for the switch or for a specific VLAN.

VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP snooping.

Examples

This is an example of output from the show ip igmp snooping vlan 1 command. It shows snooping characteristics for a specific VLAN.

Switch# show ip igmp snooping vlan 1
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping :Enabled
IGMPv3 snooping (minimal) :Enabled
Report suppression :Enabled
TCN solicit query :Disabled
TCN flood query count :2
Last member query interval : 100
 
Vlan 1:
--------
IGMP snooping :Enabled
Immediate leave :Disabled
Multicast router learning mode :pim-dvmrp
Source only learning age timer :10
CGMP interoperability mode :IGMP_ONLY
Last member query interval : 100
 

This is an example of output from the show ip igmp snooping command. It displays snooping characteristics for all VLANs on the switch.

Switch> show ip igmp snooping
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping : Enabled
IGMPv3 snooping (minimal) : Enabled
Report suppression : Enabled
TCN solicit query : Disabled
TCN flood query count : 2
Last member query interval : 100
 
Vlan 1:
--------
IGMP snooping :Enabled
Immediate leave :Disabled
Multicast router learning mode :pim-dvmrp
Source only learning age timer :10
CGMP interoperability mode :IGMP_ONLY
Last member query interval : 100
 
Vlan 2:
--------
IGMP snooping :Enabled
Immediate leave :Disabled
Multicast router learning mode :pim-dvmrp
Source only learning age timer :10
CGMP interoperability mode :IGMP_ONLY
Last member query interval : 333
 
<output truncated>

 
Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping on the switch or on a VLAN.

ip igmp snooping last-member-query-interval

Enables the IGMP snooping configurable-leave timer.

ip igmp snooping querier

Enables the IGMP querier function in Layer 2 networks.

ip igmp snooping report-suppression

Enables IGMP report suppression.

ip igmp snooping tcn

Configures the IGMP topology change notification behavior.

ip igmp snooping tcn flood

Specifies multicast flooding as the IGMP spanning-tree topology change notification behavior.

ip igmp snooping vlan immediate-leave

Enables IGMP snooping immediate-leave processing on a VLAN.

ip igmp snooping vlan mrouter

Adds a multicast router port or configures the multicast learning method.

ip igmp snooping vlan static

Statically adds a Layer 2 port as a member of a multicast group.

show ip igmp snooping groups

Displays the IGMP snooping multicast table for the switch.

show ip igmp snooping mrouter

Displays IGMP snooping multicast router ports for the switch or for the specified multicast VLAN.

show ip igmp snooping querier

Displays the configuration and operation information for the IGMP querier configured on a switch.

show ip igmp snooping groups

Use the show ip igmp snooping groups privileged EXEC command to display the Internet Group Management Protocol (IGMP) snooping multicast table for the switch or the multicast information. Use with the vlan keyword to display the multicast table for a specified multicast VLAN or specific multicast information.

show ip igmp snooping groups [count | dynamic [count] | user [count]]

show ip igmp snooping groups vlan vlan-id [ip_address | count | dynamic [ count ] | user [ count ]]

 
Syntax Description

count

(Optional) Display the total number of entries for the specified command

options instead of the actual entries.

dynamic

(Optional) Display entries learned by IGMP snooping.

user

Optional) Display only the user-configured multicast entries.

ip_address

(Optional) Display characteristics of the multicast group with the specified group IP address.

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display multicast information or the multicast table.

VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP snooping.

Examples

This is an example of output from the show ip igmp snooping groups command without any keywords. It displays the multicast table for the switch.

Switch# show ip igmp snooping groups
Vlan Group Type Version Port List
-------------------------------------------------------------
1 224.1.4.4 igmp Gi1/0/11
1 224.1.4.5 igmp Gi1/0/11
2 224.0.1.40 igmp v2 Gi1/0/15
104 224.1.4.2 igmp v2 Gi2/0/1, Gi2/0/2
104 224.1.4.3 igmp v2 Gi2/0/1, Gi2/0/2
 

This is an example of output from the show ip igmp snooping groups count command. It displays the total number of multicast groups on the switch.

Switch# show ip igmp snooping groups count
Total number of multicast groups: 2
 

This is an example of output from the show ip igmp snooping groups dynamic command. It shows only the entries learned by IGMP snooping.

Switch# show ip igmp snooping groups vlan 1 dynamic
Vlan Group Type Version Port List
-------------------------------------------------------------
104 224.1.4.2 igmp v2 Gi2/0/1, Gi1/0/15
104 224.1.4.3 igmp v2 Gi2/0/1, Gi1/0/15
 

This is an example of output from the show ip igmp snooping groups vlan vlan-id ip-address command. It shows the entries for the group with the specified IP address.

Switch# show ip igmp snooping groups vlan 104 224.1.4.2
Vlan Group Type Version Port List
-------------------------------------------------------------
104 224.1.4.2 igmp v2 Gi2/0/1, Gi1/0/15

 
Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping on the switch or on a VLAN.

ip igmp snooping vlan mrouter

Configures a multicast router port.

ip igmp snooping vlan static

Statically adds a Layer 2 port as a member of a multicast group.

show ip igmp snooping

Displays the IGMP snooping configuration of the switch or the VLAN.

show ip igmp snooping mrouter

Displays IGMP snooping multicast router ports for the switch or for the specified multicast VLAN.

show ip igmp snooping mrouter

Use the show ip igmp snooping mrouter privileged EXEC command to display the Internet Group Management Protocol (IGMP) snooping dynamically learned and manually configured multicast router ports for the switch or for the specified multicast VLAN.

show ip igmp snooping mrouter [ vlan vlan-id ]

 
Syntax Description

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display multicast router ports on the switch or for a specific VLAN.

VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP snooping.

When multicast VLAN registration (MVR) is enabled, the show ip igmp snooping mrouter command displays MVR multicast router information and IGMP snooping information.

Examples

This is an example of output from the show ip igmp snooping mrouter command. It shows how to display multicast router ports on the switch.

Switch# show ip igmp snooping mrouter
Vlan ports
---- -----
1 Gi2/0/1(dynamic)

 
Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping on the switch or on a VLAN.

ip igmp snooping vlan mrouter

Adds a multicast router port.

ip igmp snooping vlan static

Statically adds a Layer 2 port as a member of a multicast group.

show ip igmp snooping

Displays the IGMP snooping configuration of the switch or the VLAN

show ip igmp snooping groups

Displays IGMP snooping multicast information for the switch or for the specified parameter.

show ip igmp snooping querier

Use the show ip igmp snooping querier detail user EXEC command to display the configuration and operation information for the IGMP querier configured on a switch.

show ip igmp snooping querier [ detail | vlan vlan-id [ detail ]]

 
Syntax Description

detail

Optional) Display detailed IGMP querier information.

vlan vlan-id [ detail ]

Optional) Display IGMP querier information for the specified VLAN. The range is 1 to 1001 and 1006 to 4094. Use the detail keyword to display detailed information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use the show ip igmp snooping querier command to display the IGMP version and the IP address of a detected device, also called a querier , t hat sends IGMP query messages. A subnet can have multiple multicast routers but has only one IGMP querier. In a subnet running IGMPv2, one of the multicast routers is elected as the querier. The querier can be a Layer 3 switch.

The show ip igmp snooping querier command output also shows the VLAN and the interface on which the querier was detected. If the querier is the switch, the output shows the Port field as Router. If the querier is a router, the output shows the port number on which the querier is learned in the Port field.

The show ip igmp snooping querier detail user EXEC command is similar to the show ip igmp snooping querier command. However, the show ip igmp snooping querier command displays only the device IP address most recently detected by the switch querier.

The show ip igmp snooping querier detail command di splays the device IP address most recently detected by the switch querier and this additional information:

  • The elected IGMP querier in the VLAN
  • The configuration and operational information pertaining to the switch querier (if any) that is configured in the VLAN

Examples

This is an example of output from the show ip igmp snooping querier command:

Switch> show ip igmp snooping querier
Vlan IP Address IGMP Version Port
---------------------------------------------------
1 172.20.50.11 v3 Gi1/0/1
2 172.20.40.20 v2 Router
 

This is an example of output from the show ip igmp snooping querier detail command:

Switch> show ip igmp snooping querier detail
Vlan IP Address IGMP Version Port
-------------------------------------------------------------
1 1.1.1.1 v2 Fa8/0/1
 
Global IGMP switch querier status
--------------------------------------------------------
admin state : Enabled
admin version : 2
source IP address : 0.0.0.0
query-interval (sec) : 60
max-response-time (sec) : 10
querier-timeout (sec) : 120
tcn query count : 2
tcn query interval (sec) : 10
 
Vlan 1: IGMP switch querier status
 
--------------------------------------------------------
elected querier is 1.1.1.1 on port Fa8/0/1
--------------------------------------------------------
admin state : Enabled
admin version : 2
source IP address : 10.1.1.65
query-interval (sec) : 60
max-response-time (sec) : 10
querier-timeout (sec) : 120
tcn query count : 2
tcn query interval (sec) : 10
operational state : Non-Querier
operational version : 2
tcn query pending count : 0

 
Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping on the switch or on a VLAN.

ip igmp snooping querier

Enables the IGMP querier function in Layer 2 networks.

show ip igmp snooping

Displays IGMP snooping multicast router ports for the switch or for the specified multicast VLAN.

show ip source binding

Use the show ip source binding user EXEC command to display the IP source bindings on the switch.

show ip source binding [ ip-address ] [ mac-address ] [ dhcp-snooping | static ] [ interface interface-id ] [ vlan vlan-id ]

Note This command is available only if your switch is running the IP services feature set.

 
Syntax Description

ip-address

(Optional) Display IP source bindings for a specific IP address.

mac-address

(Optional) Display IP source bindings for a specific MAC address.

dhcp-snooping

(Optional) Display IP source bindings that were learned by DHCP snooping.

static

(Optional) Display static IP source bindings.

interface interface-id

(Optional) Display IP source bindings on a specific interface.

vlan vlan-id

(Optional) Display IP source bindings on a specific VLAN.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show ip source binding command output shows the dynamically and statically configured bindings in the DHCP snooping binding database. Use the show ip dhcp snooping binding privileged EXEC command to display only the dynamically configured bindings.

Examples

This is an example of output from the show ip source binding command:

Switch> show ip source binding
MacAddress IpAddress Lease(sec) Type VLAN Interface
-------------- --------------- ---------- ------------- ---- --------------------
00:00:00:0A:00:0B 11.0.0.1 infinite static 10 GigabitEthernet1/0/1
00:00:00:0A:00:0A 11.0.0.2 10000 dhcp-snooping 10 GigabitEthernet1/0/1

 
Related Commands

Command
Description

ip dhcp snooping binding

Configures the DHCP snooping binding database.

ip source binding

Configures static IP source bindings on the switch.

show ip verify source

Use the show ip verify source user EXEC command to display the IP source guard configuration on the switch or on a specific interface.

show ip verify source [ interface interface-id ]

 
Syntax Description

interface interface-id

(Optional) Display IP source guard configuration on a specific interface.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This is an example of output from the show ip verify source command:

Switch> show ip verify source
Interface Filter-type Filter-mode IP-address Mac-address Vlan
--------- ----------- ----------- --------------- -------------- ---------
gi1/0/1 ip active 10.0.0.1 10
gi1/0/1 ip active deny-all 11-20
gi1/0/2 ip inactive-trust-port
gi1/0/3 ip inactive-no-snooping-vlan
gi1/0/4 ip-mac active 10.0.0.2 aaaa.bbbb.cccc 10
gi1/0/4 ip-mac active 11.0.0.1 aaaa.bbbb.cccd 11
gi1/0/4 ip-mac active deny-all deny-all 12-20
gi1/0/5 ip-mac active 10.0.0.3 permit-all 10
gi1/0/5 ip-mac active deny-all permit-all 11-20
 

In the previous example, this is the IP source guard configuration:

  • On the Gigabit Ethernet 1/0/1 interface, DHCP snooping is enabled on VLANs 10 to 20. For VLAN 10, IP source guard with IP address filtering is configured on the interface, and a binding exists on the interface. For VLANs 11 to 20, the second entry shows that a default port access control lists (ACLs) is applied on the interface for the VLANs on which IP source guard is not configured.
  • The Gigabit Ethernet 1/0/2 interface is configured as trusted for DHCP snooping.
  • On the Gigabit Ethernet 1/0/3 interface, DHCP snooping is not enabled on the VLANs to which the interface belongs.
  • On the Gigabit Ethernet 1/0/4 interface, IP source guard with source IP and MAC address filtering is enabled, and static IP source bindings are configured on VLANs 10 and 11. For VLANs 12 to 20, the default port ACL is applied on the interface for the VLANs on which IP source guard is not configured.
  • On the Gigabit Ethernet 1/0/5 interface, IP source guard with source IP and MAC address filtering is enabled and configured with a static IP binding, but port security is disabled. The switch cannot filter source MAC addresses.

This is an example of output on an interface on which IP source guard is disabled:

Switch> show ip verify source gigabitethernet1/0/6
IP source guard is not configured on the interface gi1/0/6.

 
Related Commands

Command
Description

ip verify source

Enables IP source guard on an interface.

show ipc

Use the show ipc user EXEC command to display Interprocess Communications Protocol (IPC) configuration, status, and statistics on a switch stack or a standalone switch.

show ipc { mcast { appclass | groups | status } | nodes | ports [ open ] | queue | rpc | session { all | rx | tx } [ verbose ] | status [ cumlulative ] | zones }

Note This command is not supported on switches running the LAN base feature set.

 
Syntax Description

mcast { appclass | groups | status }

Display the IPC multicast routing information. The keywords have these meanings:

  • appclass —Display the IPC multicast application classes.
  • groups —Display the IPC multicast groups.
  • status —Display the IPC multicast routing status.

nodes

Display participating nodes.

ports [ open ]

Display local IPC ports. The keyword has this meaning:

  • open —(Optional) Display only the open ports.

queue

Display the contents of the IPC transmission queue.

rpc

Display the IPC remote-procedure statistics.

session { all | rx | tx }

Display the IPC session statistics (available only in privileged EXEC mode). The keywords have these meanings:

  • all —Display all the session statistics.
  • rx —Display the sessions statistics for traffic that the switch receives
  • tx —Display the sessions statistics for traffic that the switch forwards.

verbose

(Optional) Display detailed statistics (available only in privileged EXEC mode).

status [ cumlulative ]

Display the status of the local IPC server. The keyword has this meaning:

  • cumlulative — ( Optional) Display the status of the local IPC server since the switch was started or restarted.

zones

Display the participating IPC zones. The switch supports a single IPC zone.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

Examples

This example shows how to display the IPC routing status:

Switch> show ipc mcast status
IPC Mcast Status
Tx Rx
 
Total Frames 0 0
Total control Frames 0 0
Total Frames dropped 0 0
Total control Frames dropped 0 0
 
Total Reliable messages 0 0
Total Reliable messages acknowledged 0 0
Total Out of Band Messages 0 0
Total Out of Band messages acknowledged 0 0
 
Total No Mcast groups 0 0
 
Total Retries 0 Total Timeouts 0
Total OOB Retries 0 Total OOB Timeouts 0
Total flushes 0 Total No ports 0
 

This example shows how to display the participating nodes:

Switch> show ipc nodes
There is 1 node in this IPC realm.
ID Type Name Last Last
Sent Heard
10000 Local IPC Master 0 0
 

This example shows how to display the local IPC ports:

Switch> show ipc ports
There are 8 ports defined.
 
Port ID Type Name (current/peak/total)
There are 8 ports defined.
10000.1 unicast IPC Master:Zone
10000.2 unicast IPC Master:Echo
10000.3 unicast IPC Master:Control
10000.4 unicast IPC Master:Init
10000.5 unicast FIB Master:DFS.process_level.msgs
10000.6 unicast FIB Master:DFS.interrupt.msgs
10000.7 unicast MDFS RP:Statistics
port_index = 0 seat_id = 0x10000 last sent = 0 last heard = 0
0/2/159
 
10000.8 unicast Slot 1 :MDFS.control.RIL
port_index = 0 seat_id = 0x10000 last sent = 0 last heard = 0
0/0/0
 
RPC packets:current/peak/total
0/1/4
 

This example shows how to display the contents of the IPC retransmission queue:

Switch> show ipc queue
There are 0 IPC messages waiting for acknowledgement in the transmit queue.
There are 0 IPC messages waiting for a response.
There are 0 IPC messages waiting for additional fragments.
There are 0 IPC messages currently on the IPC inboundQ.
Messages currently in use : 3
Message cache size : 1000
Maximum message cache usage : 1000
 
0 times message cache crossed 5000 [max]
 
Emergency messages currently in use : 0
 
There are 2 messages currently reserved for reply msg.
 
Inbound message queue depth 0
Zone inbound message queue depth 0
 

This example shows how to display all the IPC session statistics:

Switch# show ipc session all
Tx Sessions:
Port ID Type Name
10000.7 Unicast MDFS RP:Statistics
port_index = 0 type = Unreliable last sent = 0 last heard = 0
Msgs requested = 180 Msgs returned = 180
 
10000.8 Unicast Slot 1 :MDFS.control.RIL
port_index = 0 type = Reliable last sent = 0 last heard = 0
Msgs requested = 0 Msgs returned = 0
 
Rx Sessions:
Port ID Type Name
10000.7 Unicast MDFS RP:Statistics
port_index = 0 seat_id = 0x10000 last sent = 0 last heard = 0
No of msgs requested = 180 Msgs returned = 180
 
10000.8 Unicast Slot 1 :MDFS.control.RIL
port_index = 0 seat_id = 0x10000 last sent = 0 last heard = 0
No of msgs requested = 0 Msgs returned = 0
 

This example shows how to display the status of the local IPC server:

Switch> show ipc status cumulative
IPC System Status
 
Time last IPC stat cleared :never
 
This processor is the IPC master server.
Do not drop output of IPC frames for test purposes.
 
1000 IPC Message Headers Cached.
 
Rx Side Tx Side
Total Frames 12916 608
0 0
Total from Local Ports 13080 574
Total Protocol Control Frames 116 17
Total Frames Dropped 0 0
 
Service Usage
 
Total via Unreliable Connection-Less Service 12783 171
Total via Unreliable Sequenced Connection-Less Svc 0 0
Total via Reliable Connection-Oriented Service 17 116
<output truncated>

 
Related Commands

Command
Description

clear ipc

Clears the IPC multicast routing statistics.

show ipv6 access-list

Use the show ipv6 access-list user EXEC command to display the contents of all current IPv6 access lists.

show ipv6 access-list [ access-list-name ]

 
Syntax Description

access-list-name

(Optional) Name of access list.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

The show ipv6 access-list command provides output similar to the show ip access-list command, except that it is IPv6-specific.

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command and reload the switch.

Examples

The following output from the show ipv6 access-list command shows IPv6 access lists named inbound and outbound:

Switch# show ipv6 access-list
IPv6 access list inbound
permit tcp any any eq bgp (8 matches) sequence 10
permit tcp any any eq telnet (15 matches) sequence 20
permit udp any any sequence 30
 

Table 2-37 describes the significant fields shown in the display.

 

Table 2-37 show ipv6 access-list Field Descriptions

Field
Description

IPv6 access list inbound

Name of the IPv6 access list, for example, inbound.

permit

Permits any packet that matches the specified protocol type.

tcp

Transmission Control Protocol. The higher-level (Layer 4) protocol type that the packet must match.

any

Equal to ::/0.

eq

An equal operand that compares the source or destination ports of TCP or UDP packets.

bgp (matches)

Border Gateway Protocol. The protocol type that the packet is equal to and the number of matches.

sequence 10

Sequence in which an incoming packet is compared to lines in an access list. Access list lines are ordered from first priority (lowest number, for example, 10) to last priority (highest number, for example, 80).

 
Related Commands

Command
Description

clear ipv6 access-list

Resets the IPv6 access list match counters.

ipv6 access-list

Defines an IPv6 access list and puts the switch into IPv6 access-list configuration mode.

sdm prefer

Configures an SDM template to optimize system resources based on how the switch is being used.

show ipv6 dhcp conflict

Use the show ipv6 dhcp conflict privileged EXEC command on the switch stack or on a standalone switch to display address conflicts found by a Dynamic Host Configuration Protocol for IPv6 (DHCPv6) server when addresses are offered to the client.

show ipv6 dhcp conflict

Note This command is available only if you have configured a dual IPv4 and IPv6 Switch Database Management (SDM) template on the switch. The command is not supported on switches running the LAN base feature set.

 
Syntax Description

This command has no arguments or keywords.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command, and reload the switch.

When you configure the DHCPv6 server to detect conflicts, it uses ping. The client uses neighbor discovery to detect clients and reports to the server through a DECLINE message. If an address conflict is detected, the address is removed from the pool, and the address is not assigned until the administrator removes the address from the conflict list.

Examples

This is an example of the output from the show ipv6 dhcp conflict command:

Switch# show ipv6 dhcp conflict
Pool 350, prefix 2001:1005::/48
2001:1005::10
 

 
Related Commands

Command
Description

ipv6 dhcp pool

Configures a DHCPv6 pool and enters DHCPv6 pool configuration mode.

clear ipv6 dhcp conflict

Clears an address conflict from the DHCPv6 server database.

show ipv6 mld snooping

Use the show ipv6 mld snooping user EXEC command to display IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping configuration of the switch or the VLAN.

show ipv6 mld snooping [ vlan vlan-id ]

 
Syntax Description

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display MLD snooping configuration for the switch or for a specific VLAN.

VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping.

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command and reload the switch.

Examples

This is an example of output from the show ipv6 mld snooping vlan command. It shows snooping characteristics for a specific VLAN.

Switch> show ipv6 mld snooping vlan 100
Global MLD Snooping configuration:
-------------------------------------------
MLD snooping : Enabled
MLDv2 snooping (minimal) : Enabled
Listener message suppression : Enabled
TCN solicit query : Disabled
TCN flood query count : 2
Robustness variable : 3
Last listener query count : 2
Last listener query interval : 1000
 
Vlan 100:
--------
MLD snooping : Disabled
MLDv1 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
Robustness variable : 3
Last listener query count : 2
Last listener query interval : 1000
 

This is an example of output from the show ipv6 mld snooping command. It displays snooping characteristics for all VLANs on the switch.

Switch> show ipv6 mld snooping
Global MLD Snooping configuration:
-------------------------------------------
MLD snooping : Enabled
MLDv2 snooping (minimal) : Enabled
Listener message suppression : Enabled
TCN solicit query : Disabled
TCN flood query count : 2
Robustness variable : 3
Last listener query count : 2
Last listener query interval : 1000
 
Vlan 1:
--------
MLD snooping : Disabled
MLDv1 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
Robustness variable : 1
Last listener query count : 2
Last listener query interval : 1000
 
<output truncated>
 
Vlan 951:
--------
MLD snooping : Disabled
MLDv1 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
Robustness variable : 3
Last listener query count : 2
Last listener query interval : 1000

 
Related Commands

Command
Description

ipv6 mld snooping

Enables and configures MLD snooping on the switch or on a VLAN.

sdm prefer

Configures an SDM template to optimize system resources based on how the switch is being used.

show ipv6 mld snooping address

Use the show ipv6 mld snooping address user EXEC command to display all or specified IP Version 6 (IPv6) multicast address information maintained by Multicast Listener Discovery (MLD) snooping.

show ipv6 mld snooping address [[ vlan vlan-id ] [ ipv6 address ]] [ vlan vlan-id ] [ count | dynamic | user ]

 
Syntax Description

vlan vlan-id

(Optional) Specify a VLAN about which to show MLD snooping multicast address information. The VLAN ID range is 1 to 1001 and 1006 to 4094.

ipv6-multicast-address

(Optional) Display information about the specified IPv6 multicast address. This keyword is only available when a VLAN ID is entered.

count

(Optional) Display the number of multicast groups on the switch or in the specified VLAN.

dynamic

(Optional) Display MLD snooping learned group information.

user

(Optional) Display MLD snooping user-configured group information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display IPv6 multicast address information.

You can enter an IPv6 multicast address only after you enter a VLAN ID.

VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping.

Use the dynamic keyword to display information only about groups that are learned. Use the user keyword to display information only about groups that have been configured.

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command and reload the switch.

Examples

This is an example of output from the show snooping address user EXEC command:

Switch> show ipv6 mld snooping address
Vlan Group Type Version Port List
-------------------------------------------------------------
2 FF12::3 user Gi1/0/2, Gi2/0/2, Gi3/0/1,Gi3/0/3
 

This is an example of output from the show snooping address count user EXEC command:

Switch> show ipv6 mld snooping address count
Total number of multicast groups: 2
 

This is an example of output from the show snooping address user user EXEC command:

Switch> show ipv6 mld snooping address user
Vlan Group Type Version Port List
-------------------------------------------------------------
2 FF12::3 user v2 Gi1/0/2, Gi2/0/2, Gi3/0/1,Gi3/0/3

 
Related Commands

Command
Description

ipv6 mld snooping vlan

Configures IPv6 MLD snooping on a VLAN.

sdm prefer

Configures an SDM template to optimize system resources based on how the switch is being used.

show ipv6 mld snooping mrouter

Use the show ipv6 mld snooping mrouter user EXEC command to display dynamically learned and manually configured IP version 6 (IPv6) Multicast Listener Discovery (MLD) router ports for the switch or a VLAN.

show ipv6 mld snooping mrouter [ vlan vlan-id ]

 
Syntax Description

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use this command to display MLD snooping router ports for the switch or for a specific VLAN.

VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping.

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command and reload the switch.

Examples

This is an example of output from the show ipv6 mld snooping mrouter command. It displays snooping characteristics for all VLANs on the switch that are participating in MLD snooping.

Switch> show ipv6 mld snooping mrouter
Vlan ports
---- -----
2 Gi1/0/11(dynamic)
72 Gi1/0/11(dynamic)
200 Gi1/0/11(dynamic)
 

This is an example of output from the show ipv6 mld snooping mrouter vlan command. It shows multicast router ports for a specific VLAN.

Switch> show ipv6 mld snooping mrouter vlan 100
Vlan ports
---- -----
2 Gi1/0/11(dynamic)
 

 
Related Commands

Command
Description

ipv6 mld snooping

Enables and configures MLD snooping on the switch or on a VLAN.

ipv6 mld snooping vlan mrouter interface

Configures multicast router ports for a VLAN.

sdm prefer

Configures an SDM template to optimize system resources based on how the switch is being used.

show ipv6 mld snooping querier

Use the show ipv6 mld snooping querier user EXEC command to display IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping querier-related information most recently received by the switch or the VLAN.

show ipv6 mld snooping querier [ vlan vlan-id ] [ detail ]

 
Syntax Description

vlan vlan-id

(Optional) Specify a VLAN; the range is 1 to 1001 and 1006 to 4094.

detail

(Optional) Display MLD snooping detailed querier information for the switch or for the VLAN.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use the show ipv6 mld snooping querier command to display the MLD version and IPv6 address of a detected device that sends MLD query messages, which is also called a querier. A subnet can have multiple multicast routers but has only one MLD querier. The querier can be a Layer 3 switch.

The show ipv6 mld snooping querier command output also shows the VLAN and interface on which the querier was detected. If the querier is the switch, the output shows the Port field as Router. If the querier is a router, the output shows the port number on which the querier is learned in the Port field.

The output of the show ipv6 mld snoop querier vlan command displays the information received in response to a query message from an external or internal querier. It does not display user-configured VLAN values, such as the snooping robustness variable on the particular VLAN. This querier information is used only on the MASQ message that is sent by the switch. It does not override the user-configured robustness variable that is used for aging out a member that does not respond to query messages.

VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in MLD snooping.

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 { default | vlan ) global configuration command and reload the switch.

Examples

This is an example of output from the show ipv6 mld snooping querier command:

Switch> show ipv6 mld snooping querier
Vlan IP Address MLD Version Port
-------------------------------------------------------------
2 FE80::201:C9FF:FE40:6000 v1 Gi3/0/1
 

This is an example of output from the show ipv6 mld snooping querier detail command:

Switch> show ipv6 mld snooping querier detail
Vlan IP Address MLD Version Port
-------------------------------------------------------------
2 FE80::201:C9FF:FE40:6000 v1 Gi3/0/1
 

This is an example of output from the show ipv6 mld snooping querier vlan command:

Switch> show ipv6 mld snooping querier vlan 2
IP address : FE80::201:C9FF:FE40:6000
MLD version : v1
Port : Gi3/0/1
Max response time : 1000s
 

 
Related Commands

Command
Description

ipv6 mld snooping

Enables and configures IPv6 MLD snooping on the switch or on a VLAN.

ipv6 mld snooping last-listener-query-count

Configures the maximum number of queries that the switch sends before aging out an MLD client.

ipv6 mld snooping last-listener-query-interval

Configures the maximum response time after sending out a query that the switch waits before deleting a port from the multicast group.

ipv6 mld snooping robustness-variable

Configures the maximum number of queries that the switch sends before aging out a multicast address when there is no response.

sdm prefer

Configures an SDM template to optimize system resources based on how the switch is being used.

ipv6 mld snooping

Enables and configures IPv6 MLD snooping on the switch or on a VLAN.

show ipv6 route updated

Use the show ipv6 route updated command in user EXEC command to display the current contents of the IPv6 routing table.

show ipv6 route [ protocol ] updated [ boot-up ] { hh:mm | day { month [ hh:mm ]} [{ hh:mm | day { month [ hh:mm ]}]

Note This command is not supported on switches running the LAN base feature set.

 
Syntax Description

protocol

(Optional) Displays routes for the specified routing protocol using any of these keywords:

  • bgp
  • isis
  • ospf
  • rip

or displays routes for the specified type of route using any of these keywords:

  • connected
  • local
  • static
  • interface interface id

boot-up

Display the current contents of the IPv6 routing table.

hh:mm

Enter the time as a 2-digit number for a 24-hour clock. Make sure to use the colons (:). For example, enter 13:32

day

Enter the day of the month. The range is from 1 to 31.

month

Enter the month in upper case or lower case letters. You can enter the full name of the month, such as January or august, or the first three letters of the month, such as jan or Aug.

 
Command Modes

Privileged EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

Use the show ipv6 route privileged EXEC command to display the current contents of the IPv6 routing table.

Examples

This is an example of output from the show ipv6 route updated rip command.

Switch> show ipv6 route rip updated
IPv6 Routing Table - 12 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, R - RIP, I1 - ISIS L1, I2 - ISIS L2
IA - ISIS interarea, IS - ISIS summary
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
R 2001::/64 [120/2]
via FE80::A8BB:CCFF:FE00:8D01, GigabitEthernet1/0/1
Last updated 10:31:10 27 February 2007
R 2004::/64 [120/2]
via FE80::A8BB:CCFF:FE00:9001, GigabitEthernet1/0/2
Last updated 17:23:05 22 February 2007
R 4000::/64 [120/2]
via FE80::A8BB:CCFF:FE00:9001, GigabitEthernet1/0/3
Last updated 17:23:05 22 February 2007
R 5000::/64 [120/2]
via FE80::A8BB:CCFF:FE00:9001, GigabitEthernet1/0/4
Last updated 17:23:05 22 February 2007
R 5001::/64 [120/2]
via FE80::A8BB:CCFF:FE00:9001, GigabitEthernet1/0/5
Last updated 17:23:05 22 February 2007

 
Related Commands

Command
Description

show ipv6 route

Displays the current contents of the IPv6 routing table. For syntax information, select Cisco IOS Software > Command References for the Cisco IOS Software Releases 12.3 Mainline > Cisco IOS IPv6 Command Reference > IPv6 Commands: show ipv6 nat translations through show ipv6 protocols

show l2protocol-tunnel

Use the show l2protocol-tunnel user EXEC command to display information about Layer 2 protocol tunnel ports. Displays information for interfaces with protocol tunneling enabled.

show l2protocol-tunnel [ interface interface-id ] [ summary ]

Note This command is not supported on switches running the LAN base feature set.

 
Syntax Description

interface interface-id

(Optional) Specify the interface for which protocol tunneling information appears. Valid interfaces are physical ports and port channels; the port channel range is 1 to 48.

summary

(Optional) Display only Layer 2 protocol summary information.

 
Command Modes

User EXEC

 
Command History

Release
Modification

12.2(53)SE2

This command was introduced.

 
Usage Guidelines

After enabling Layer 2 protocol tunneling on an access or IEEE 802.1Q tunnel port by using the l2protocol-tunnel interface configuration command, you can configure some or all of these parameters:

  • Protocol type to be tunneled
  • Shutdown threshold
  • Drop threshold

If you enter the show l2protocol-tunnel [ interface interface-id ] command, only information about the active ports on which all the parameters are configured appears.

If you enter the show l2protocol-tunnel summary command, only information about the active ports on which some or all of the parameters are configured appears.

Examples

This is an example of output from the show l2protocol-tunnel command:

Switch> show l2protocol-tunnel
COS for Encapsulated Packets: 5
Drop Threshold for Encapsulated Packets: 0
 
Port Protocol Shutdown Drop Encapsulation Decapsulation Drop
Threshold Threshold Counter Counter Counter
---------- -------- --------- --------- ------------- ------------- -------------
Gi3/0/3 --- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
pagp ---- ---- 0 242500
lacp ---- ---- 24268 242640
udld ---- ---- 0 897960
Gi3/0/4 --- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
pagp 1000 ---- 24249 242700
lacp ---- ---- 24256 242660
udld ---- ---- 0 897960
Gi6/0/1 cdp ---- ---- 134482 1344820
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
pagp 1000 ---- 0 242500
lacp 500 ---- 0 485320
udld 300 ---- 44899 448980
Gi6/0/2 cdp ---- ---- 134482 1344820
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
pagp ---- 1000 0 242700
lacp ---- ---- 0 485220
udld 300 ---- 44899 448980
 

This is an example of output from the show l2protocol-tunnel summary command:

Switch> show l2protocol-tunnel summary
COS for Encapsulated Packets: 5
Drop Threshold for Encapsulated Packets: 0
&