Catalyst 2950 and Catalyst 2955 Switch Command Reference, 12.1(22)EA11 and Later
Catalyst 2950 and 2955 Switch Cisco IOS Commands - s
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Table Of Contents

service password-recovery

service-policy

set

setup express

show access-lists

show auto qos

show boot

show class-map

show cluster

show cluster candidates

show cluster members

show controllers ethernet-controller

show controllers lre cpe

show controllers lre actual

show controllers lre admin

show controllers lre link monitor

show controllers lre log

show controllers lre profile

show controllers lre sequence

show controllers lre status

show controllers lre version

show controllers utilization

show dot1x

show env

show errdisable recovery

show etherchannel

show file

show flowcontrol

show interfaces

show interfaces counters

show inventory

show ip access-lists

show ip dhcp snooping

show ip dhcp snooping binding

show ip igmp profile

show ip igmp snooping

show ip igmp snooping querier detail

show lacp

show lre upgrade

show mac access-group

show mac address-table

show mac address-table multicast

show mac address-table notification

show mls masks

show mls qos interface

show mls qos maps

show monitor

show mvr

show mvr interface

show mvr members

show pagp

show parser macro

show policy-map

show port-security

show rps

show running-config vlan

show setup express

show spanning-tree

show storm-control

show system mtu

show udld

show version

show vlan

show vmps

show vtp

show wrr-queue bandwidth

show wrr-queue cos-map

shutdown

shutdown vlan

snmp-server enable traps

snmp-server host

snmp trap mac-notification

spanning-tree backbonefast

spanning-tree bpdufilter

spanning-tree bpduguard

spanning-tree cost

spanning-tree etherchannel guard misconfig

spanning-tree extend system-id

spanning-tree guard

spanning-tree link-type

spanning-tree loopguard default

spanning-tree mode

spanning-tree mst configuration

spanning-tree mst cost

spanning-tree mst forward-time

spanning-tree mst hello-time

spanning-tree mst max-age

spanning-tree mst max-hops

spanning-tree mst port-priority

spanning-tree mst priority

spanning-tree mst root

spanning-tree port-priority

spanning-tree portfast (global configuration)

spanning-tree portfast (interface configuration)

spanning-tree stack-port

spanning-tree uplinkfast

spanning-tree vlan

speed

storm-control

switchport access

switchport block

switchport host

switchport mode

switchport nonegotiate

switchport port-security

switchport port-security aging

switchport priority extend

switchport protected

switchport trunk

switchport voice vlan

system mtu


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service password-recovery

Use the service password-recovery global configuration command to enable the password-recovery mechanism (the default). An end user with physical access to the switch can hold down the Mode button and interrupt the boot process while the switch is powering up and can 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

This command is available only on Catalyst 2950 Long-Reach Ethernet (LRE) switches.

Syntax Description

This command has no arguments or keywords.

Defaults

The password-recovery mechanism is enabled.

Command Modes

Global configuration

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

This command is valid only on Catalyst 2950 LRE switches.

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.

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 back 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 back 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.


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 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 to apply a policy map defined by the policy-map command to the input of a particular interface. Use the no form of this command to remove the policy map and interface association.

service-policy input policy-map-name

no service-policy input policy-map-name

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

policy-map-name

Apply the specified policy map to the input of an interface.


Defaults

No policy maps are attached to the interface.

Command Modes

Interface configuration

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Only one policy map per ingress interface is supported.

Service policy maps cannot be defined on egress interfaces.


Note For more information about configuring access control lists (ACLs), see the "Configuring Network Security with ACLs" chapter in the software configuration guide for this release.


Examples

This example shows how to apply plcmap1 to an ingress interface:

Switch(config)# interface gigabitethernet0/17
Switch(config-if)# service-policy input plcmap1

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

Related Commands

Command
Description

policy-map

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

show policy-map

Displays quality of service (QoS) policy maps.


set

Use the set policy-map class configuration command to classify IP traffic by setting a Differentiated Services Code Point (DSCP) value. Use the no form of this command to remove traffic classification.

set ip dscp new-dscp

no set ip dscp new-dscp

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

new-dscp

New DSCP value assigned to the classified traffic.

The supported DSCP values are 0, 8, 10, 16, 18, 24, 26, 32, 34, 40, 46, 48, and 56.


Defaults

No traffic classification is defined.

Command Modes

Policy-map class configuration

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

The set command can be used in a policy with a match command.

The set command sets the DSCP value for in-profile packets.


Note This command does not support IP precedence.


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


Note For more information about configuring access control lists (ACLs), see the "Configuring Network Security with ACLs" chapter in the software configuration guide for this release.


Examples

This example shows how to assign a DSCP value of 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 ip dscp 10
Switch(config-pmap)# exit

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

Related Commands

Command
Description

police

Defines a policer for classified traffic.

policy-map

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

show policy-map

Displays quality of service (QoS) policy maps.


setup express

Use the setup express global configuration command to enable Express Setup mode on the switch. This is the default setting. Use the no form of this command to disable Express Setup mode.

setup express

no setup express

This command is available only on Catalyst 2950 switches.

Syntax Description

This command has no arguments or keywords.

Defaults

Express Setup is enabled.

Command Modes

Global configuration

Command History

Release
Modification

12.1(14)EA1

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 mode LEDs 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 mode LEDs begin blinking green after 2 seconds.

On a configured switch, the mode LEDs turn solid green after a total of 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 only turn solid green or begin blinking green if Express Setup mode is enabled on the switch.

Related Commands

Command
Description

show setup express

Displays if Express Setup mode is active on the switch.


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] [ | {begin | exclude | include} expression]

Syntax Description

name

(Optional) Name of the ACL.

number

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

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show access-lists
Standard IP access list testingacl
    permit 10.10.10.2
Standard IP access list wizard_1-1-1-2
    permit 1.1.1.2
Extended IP access list 103
    permit tcp any any eq www
Extended IP access list CMP-NAT-ACL
    Dynamic Cluster-HSRP deny   ip any any
    Dynamic Cluster-NAT permit ip any any
      permit ip host 10.123.222.192 any
      permit ip host 10.228.215.0 any
      permit ip host 10.245.137.0 any
      permit ip host 10.245.155.128 any
      permit ip host 10.221.111.64 any
      permit ip host 10.216.25.128 any
      permit ip host 10.186.122.64 any
      permit ip host 10.169.110.128 any
      permit ip host 10.146.106.192 any

Related Commands

Command
Description

access-list (IP extended)

Configures an extended IP ACL on the switch.

access-list (IP standard)

Configures a standard IP ACL on the switch.

ip access-list

Configures an IP ACL on the switch.

mac access-list extended

Creates an ACL based on MAC addresses.

show ip access-lists

Displays the IP ACLs configured on a switch.


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]]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

interface [interface-id]

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


Command Modes

User EXEC

Command History

Release
Modification

12.1(12c)EA1

This command was introduced.

12.1(20)EA2

The information in the command output changed, and the user guidelines were updated.


Usage Guidelines

In releases earlier than Cisco IOS Release 12.1(20)EA2, the show auto qos [interface [interface-id]] command output shows the initial generated auto-QoS configuration.

In Cisco IOS Release 12.1(20)EA2 or later, 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.

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 map cos-dscp

show mls qos interface

show running-config

show wrr-queue bandwidth

show wrr-queue cos-map

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 
FastEthernet0/3
auto qos voip cisco-phone

FastEthernet0/4
auto qos voip cisco-softphone

FastEthernet0/5
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 fastethernet0/3
FastEthernet0/3
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...
...
!
wrr-queue bandwidth 10 20 70 1
wrr-queue cos-map 1 0 1
wrr-queue cos-map 2 2 4
wrr-queue cos-map 3 3 6 7
wrr-queue cos-map 4 5
!
class-map match-all AutoQoS-VoIP-RTP-Trust
  match ip dscp 46
class-map match-all AutoQoS-VoIP-Control-Trust
  match ip dscp 24 26
!
policy-map AutoQoS-Police-SoftPhone
  class AutoQoS-VoIP-RTP-Trust
    set ip dscp 46
    police 1000000 4096 exceed-action drop
  class AutoQoS-VoIP-Control-Trust
    set ip dscp 24
    police 1000000 4096 exceed-action drop
!
mls qos map cos-dscp 0 8 16 26 32 46 48 56
...
interface FastEthernet0/3
 mls qos trust device cisco-phone
 mls qos trust cos
 auto qos voip cisco-phone
!
interface FastEthernet0/4
 service-policy input AutoQoS-Police-SoftPhone
 auto qos voip cisco-softphone
!

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 interface interface-id command when auto-QoS is disabled on an interface:

Switch> show auto qos interface fastethernet0/1
AutoQoS is disabled

Related Commands

Command
Description

auto qos voip

Automatically configures QoS for VoIP within a QoS domain.


show boot

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

show boot [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)EA1

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.


Note Only the software can read and write a copy of the private configuration file. You cannot read, write, delete, or display a copy of this file.


Examples

This is an example of output from the show boot command. Table 2-8 describes each field in the output.

Switch# show boot
BOOT path-list:      flash:boot
Config file:         flash:config.text
Private Config file: flash:private-config.text
Enable Break:        no
Manual Boot:         yes
HELPER path-list:
NVRAM/Config file 
buffer size:   32768



Table 2-8 show boot Field Descriptions

Field
Description

BOOT path-list

Displays a semicolon-separated list of executable files to load and to 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 the software uses to read and write a nonvolatile copy of the system configuration.

Private Config file

Displays the filename that the software uses to read and write a nonvolatile copy of the private 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 the system. If it is set to anything else, you must manually boot 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.

NVRAM/Config file buffer size

Displays the buffer size that the software 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 private-config-file

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


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] [ | {begin | exclude | include} expression]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

class-map-name

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

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

If you do not specify a class-map-name, all class maps appear.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show class-map test
 Class Map match-all test (id 2)
   Match access-group name testingacl

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

Switch> show class-map
 Class Map match-all wizard_1-1-1-2 (id 3)
   Match access-group name videowizard_1-1-1-2

 Class Map match-all test (id 2)
   Match access-group name testingacl

 Class Map match-any class-default (id 0)
   Match any

 Class Map match-all class1 (id 5)
   Match access-group  103

 Class Map match-all classtest (id 4)
  Description: This is a test.
   Match access-group name testingacl

Related Commands

Command
Description

class-map

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

match

Defines the match criteria to classify traffic.


show cluster

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

show cluster [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

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

On a 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.

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

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show cluster
Command switch for cluster "Switch1"
        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:          Switch1_standby
                Standby Group Number:   110
        Heartbeat interval:             8
        Heartbeat hold-time:            80
        Extended discovery hop count:   3 

This is an example of output when this command is entered on a member switch:

Switch# show cluster
Member switch for cluster "commander"
        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 this command is entered on a member switch that is configured as the standby command switch:

Switch# show cluster
Member switch for cluster "commander"
        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 this command is entered on the command switch that has lost connectivity from member 1:

Switch# show cluster
Command switch for cluster "Switch1"
        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 this command is entered on a member switch that has lost connectivity with the command switch:

Switch# show cluster
Member switch for cluster "commander"
        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 the command switch to display a list of candidate switches.

show cluster candidates [detail | mac-address H.H.H.] [ | {begin | exclude | include} expression]

Syntax Description

detail

(Optional) Display detailed information for all candidates.

mac-address H.H.H.

(Optional) Hexadecimal MAC address of the cluster candidate.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

You should only enter this command on a command switch.

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

The SN in the output means switch member number. If E is 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 command switch.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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
0030.85f5.8e80 3550-12T     WS-C3550-12T     Gi0/4         1   0  Fa0/1        
0005.313c.5880 Switch2      WS-C3550-12T     Gi0/1         2   E  Gi0/5        
0005.dcc8.01c0 2950-145     WS-C2950T-24     Fa0/1         3   E  Gi0/2 
0002.b922.7180 C2820        WS-C2820-24      Fa0/3        Up 

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

Switch# show cluster candidates mac-address 00d0.7961.c4c0
Device 'c2950-12' with mac address number 00d0.7961.c4c0
        Device type:            cisco WS-C2950-12
        Upstream MAC address:   00d0.796d.2f00 (Cluster Member 0)
        Local port:             Fa0/3 FEC number: 
        Upstream port:          Fa0/13 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 member switch three hops from the cluster edge:

Switch# show cluster candidates mac-address 0010.7bb6.1cc0
Device 'c2950-24' with mac address number 0010.7bb6.1cc0
        Device type:            cisco WS-C2950-24
        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 'c2950-12' with mac address number 00d0.7961.c4c0
        Device type:            cisco WS-C2950-12
        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 'c2924-XL' 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 the command switch to display information about the cluster members.

show cluster members [n | detail] [ | {begin | exclude | include} expression]

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.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

You should only enter this command on a command switch.

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

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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

Switch# show cluster members
                                                |---Upstream---|
SN MAC Address    Name         PortIf FEC Hops   SN PortIf  FEC  State
0  0404.0400.0001 Switch                    0                     Up
(Cmdr)
1  0003.fd62.9240 b10-2940TT   Fa0/1        1     0  Gi0/20       Up

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

Switch# show cluster members 3
Device 'SanJuan2' with member number 3
        Device type:            cisco WS-C3550-12T
        MAC address:            0002.4b29.4400
        Upstream MAC address:   0030.946c.d740 (Cluster member 1)
        Local port:             Gi0/1   FEC number:
        Upstream port:          Fa0/11  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-C3550-12T
        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-C3550-12T
        MAC address:            0002.4b29.4400
        Upstream MAC address:   0030.946c.d740 (Cluster member 1)
        Local port:             Gi0/1   FEC number:
        Upstream port:          Fa0/11  FEC Number:
        Hops from command device: 2
Device 'Test' 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 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 this command with keywords to display the interface internal registers or to display the statistics read from Long-Reach Ethernet (LRE) and customer premises equipment (CPE) ports.

show controllers ethernet-controller interface-id [asic | cpe [port port-id] | phy 32] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

ID of the switch interface.

asic

(Optional) Display the state of the internal registers on the forwarding application-specific integrated circuit (ASIC) for the interface. This keyword is available only on non-LRE switches.

cpe [port port-id]

(Optional) Display statistics from the LRE and Fast Ethernet ports on connected devices.

port port-idDisplay the Ethernet statistics of the designated CPE Ethernet port. The range is 1 to 4, depending on the CPE device.

These keywords are available only on LRE switches.

phy 32

(Optional) Display the status of the internal registers on the switch physical layer device (PHY) for the interface. This keyword is available only on non-LRE switches.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

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

Command History

Release
Modification

12.1(6)EA2

This command was introduced.

12.1(11)YJ

The cpe and port port-id keywords were added.

12.1(19)EA1

The phy keyword was changed to phy 32.


Usage Guidelines

Use this command without keywords to display traffic statistics, particularly the RMON statistics for the interface. If this command is entered on a Catalyst 2950 LRE switch, the command output also shows the statistics for the LRE switch interfaces.

When you enter the asic or phy 32 keyword, the displayed information is primarily useful for Cisco technical support representatives troubleshooting the switch. When you enter the cpe keyword, the displayed information shows the traffic statistics for the connected CPE devices. The CPE Ethernet link on an LRE switch port is the connection between the Cisco LRE CPE and the remote Ethernet device (such as a PC) connected to it. It is not the link between the LRE switch port and the LRE CPE device.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers ethernet-controller command on a non-LRE switch. For this example, Table 2-9 describes the Transmit fields, Table 2-10 describes the Receive fields, and Table 2-11 describes the Transmit and Receive fields.

Switch# show controllers ethernet-controller fastethernet0/2
Transmit                                Receive
 19555003 Bytes                         23485398 Bytes
   222479 Frames                          313530 Frames
   161490 Multicast frames                     0 FCS errors
      256 Broadcast frames                313467 Multicast frames
        0 Pause frames                         1 Broadcast frames
        0 Single defer frames                  0 Control frames
        0 Multiple defer frames                0 Pause frames
        0 1 collision frames                   0 Unknown opcode frames
        0 2-15 collisions                      0 Alignment errors
        0 Late collisions                      0 Length out of range
        0 Excessive collisions                 0 Symbol error frames
        0 Total collisions                     0 False carrier errors
        0 Control frames                       0 Valid frames, too small
        0 VLAN discard frames                  0 Valid frames, too large
        0 Too old frames                       0 Invalid frames, too small
        0 Tagged frames                        0 Invalid frames, too large
        0 Aborted Tx frames                    0 Discarded frames

Transmit and Receive
    384595 Minimum size frames
    131178 65 to 127 byte frames
         6 128 to 255 byte frames
     20229 256 to 511 byte frames
         1 512 to 1023 byte frames
         0 1024 to 1518 byte frames
         0 1519 to 1522 byte frames

Table 2-9 Transmit Field Descriptions 

Field
Description

Bytes

The total number of bytes sent on an interface.

Frames

The total number of frames sent on an interface.

Multicast frames

The total number of frames sent to multicast addresses.

Broadcast frames

The total number of frames sent to broadcast addresses.

Pause frames

The number of pause frames sent on an interface.

Single defer frames

The number of frames for which the first transmission attempt on an interface is not successful. This value excludes frames in collisions.

Multiple defer frames

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

1 collision frames

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

2-15 collisions

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

Late collisions

After a frame is sent, the number of times that a collision is detected on an interface later than 512 bit times.

Excessive collisions

The number of frames that could not be sent on an interface because more than 16 collisions occurred.

Total collisions

The total number of collisions on an interface.

Control frames

The number of control frames sent on an interface, such as STP1 BPDUs2 .

VLAN discard frames

The number of frames dropped on an interface because the CFI3 bit is set.

Too old frames

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

Tagged frames

The number of tagged frames sent on an interface.

Aborted Tx frames

The number of aborted transmission attempts on the interface.

1 STP = Spanning Tree Protocol

2 BPDU = bridge protocol data unit

3 CFI = Canonical Format Indicator


Table 2-10 Receive Field Descriptions 

Field
Description

Bytes

The total amount of memory (in bytes) used by frames received on an interface, including the FCS1 value and the incorrectly formed frames. This value excludes the frame header bits.

Frames

The total number of frames received on an interface, including multicast frames, broadcast frames, and incorrectly formed frames.

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.

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.

Control frames

The number of control frames received on an interface, such as STP BPDUs.

Pause frames

The number of pause frames received on an interface.

Unknown opcode frames

The number of frames received with an unknown operation code.

Alignment errors

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

Length out of range

The number of frames received on an interface that have an out-of-range length.

Symbol error frames

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

False carrier errors

The number of occurrences in which the interface detects a false carrier when frames are not sent or received.

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 have valid FCS values. The frame size includes the FCS bits but excludes the frame header bits.

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.

Invalid frames, too large

The number of frames received that were larger than maximum allowed MTU2 size (including the FCS bits and excluding the frame header) and that have either an FCS error or an alignment error.

Note For information about the maximum allowed MTU size on the switch, see the system mtu global configuration command.

Discarded frames

The number of frames discarded because of lack of receive buffer memory.

1 FCS = frame check sequence

2 MTU = maximum transmission unit


Table 2-11 Transmit and Receive Field Descriptions  

Field
Description

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.

1519 to 1522 byte frames

The total number of frames that are from 1519 to 1522 bytes.


This is an example of output from the show controllers ethernet-controller command on an LRE switch. For this example, Table 2-9 describes the Transmit fields, Table 2-10 describes the Receive fields, Table 2-11 describes the Transmit and Receive fields, and Table 2-12 describes the LRE Enet Stats on Switch fields.

Switch# show controllers ethernet-controller longreachethernet0/4
Transmit                                Receive
        64 Bytes                               64 Bytes
         1 Frames                               1 Frames
         0 Multicast frames                     0 FCS errors
         0 Broadcast frames                     0 Multicast frames
         0 Pause frames                         0 Broadcast frames
         0 Single defer frames                  0 Control frames
         0 Multiple defer frames                0 Pause frames
         0 1 collision frames                   0 Unknown opcode frames
         0 2-15 collisions                      0 Alignment errors
         0 Late collisions                      0 Length out of range
         0 Excessive collisions                 0 Symbol error frames
         0 Total collisions                     0 False carrier errors
         0 Control frames                       0 Valid frames, too small
         0 VLAN discard frames                  0 Valid frames, too large
         0 Too old frames                       0 Invalid frames, too small
         0 Tagged frames                        0 Invalid frames, too large
         0 Aborted Tx frames                    0 Discarded frames

Transmit and Receive
         2 Minimum size frames
         0 65 to 127 byte frames
         0 128 to 255 byte frames
         0 256 to 511 byte frames
         0 512 to 1023 byte frames
         0 1024 to 1518 byte frames
         0 1519 to 1522 byte frames

LRE Enet Stats on Switch:

  Transmit                           Receive
         0 Bytes                           0 Bytes
         0 Frames                          0 Frames
                                           0 Broadcast frames
         0 Pause frames                    0 Pause frames
         0 1 collision frames              0 Alignment errors
         0 Multiple collisions             0 Collisions and Runts
         0 Late collisions                 0 Oversize frames
         0 Excessive collisions            0 FCS errors
         0 Deferred frames
         0 Carrier sense errors

Table 2-12 LRE Enet Stats on Switch Field Descriptions 

Field
Description

Transmit

Bytes

The total number of bytes sent on an interface.

Frames

The total number of frames sent on an interface.

Pause frames

The number of pause frames sent on an interface.

1 collision frames

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

Multiple collisions

The number of frames that are sent after more than one collision occurs.

Late collisions

After a frame is sent, the number of times that a collision is detected on an interface later than 512 bit times.

Excessive collisions

The number of frames that could not be sent on an interface because more than 16 collisions occurs.

Deferred frames

The number of frames that are not sent on an interface.

Carrier sense errors

The number of frames with carrier sense errors.

Receive

Bytes

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

Frames

The total number of frames received on an interface, including broadcast frames and incorrectly formed frames.

Broadcast frames

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

Pause frames

The number of pause frames received on an interface.

Alignment errors

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

Collisions and Runts

The number of frames that could not be received on an interface because of collisions because the frame length (in bytes) is too small.

Receive

Oversize frames

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

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.


This is an example of output from the show controllers ethernet-controller longreachethernet0/4 cpe command. It shows the statistics of the LRE chipset and the all the LRE ports on the CPE. For this example, Table 2-13 describes the LRE Enet Stats on CPE fields, and Table 2-14 describes the CPE Fast Ethernet Port fields.

Switch# show controllers ethernet-controller longreachethernet0/4 cpe
LRE Enet Stats on CPE:

  Transmit                           Receive
         0 Bytes                           0 Bytes
         0 Frames                          0 Frames
                                           0 Broadcast frames
         0 Pause frames                    0 Pause frames
         0 1 collision frames              0 Alignment errors
         0 Multiple collisions             0 Collisions and Runts
         0 Late collisions                 0 Oversize frames
         0 Excessive collisions            0 FCS errors
         0 Deferred frames
         0 Carrier sense errors

CPE Fast Ethernet Port: 1
  Transmit                           Receive
         0 Bytes                          0 Bytes
                                          0 Good Bytes
         0 Unicast Frames                 0 Unicast Frames
         0 Multicast Frames               0 Multicast Frames
         0 Broadcast Frames               0 Broadcast Frames
         0 Dropped Frames                 0 Dropped Frames
         0 Pause Frames                   0 Pause Frames
         0 Collision Frames               0 Alignment Errors
         0 One Collision Frames           0 Fragments
         0 Multiple Collisions            0 Undersize Frames
         0 Late Collisions                0 Oversize Frames
         0 Excess Collisions              0 FCS errors
         0 Frame Discard                  0 Excess Size Discards
         0 Deferred Frames                0 Jabbers
                                          0 Source Address Chang
                                          0 Symbol Errors
                                          0 64 Byte Frames
                                          0 65-127 Byte Frames
                                          0 128-255 Byte Frames
                                          0 256-511 Byte Frames
                                          0 512-1023 Byte Frames
                                          0 1024-1522 Byte Frame

This is an example of output from the show controllers ethernet-controller longreachethernet0/4 cpe port 1 command. It shows the statistics for a specific LRE port on the CPE. For this example, Table 2-14 describes the CPE Fast Ethernet Port fields.

Switch# show controllers ethernet-controller longreachethernet0/4 cpe port 1
CPE Fast Ethernet Port: 1

Transmit                           Receive
42308326 Bytes                    8264733 Bytes               
                                    8264733 Good Bytes          
       193 Unicast Frames             68745 Unicast Frames      
    511408 Multicast Frames           11469 Multicast Frames    
      1886 Broadcast Frames               0 Broadcast Frames    
         0 Dropped Frames                 0 Dropped Frames      
         0 Pause Frames                   0 Pause Frames        
         0 Collision Frames               0 Alignment Errors    
         0 One Collision Frames           0 Fragments           
         0 Multiple Collisions            0 Undersize Frames    
         0 Late Collisions                0 Oversize Frames     
         0 Excess Collisions              0 FCS errors          
         0 Frame Discard                  0 Excess Size Discards
         2 Deferred Frames                0 Jabbers             
                                          1 Source Address Change
                                          0 Symbol Errors       
          
                                      68745 64 Byte Frames      
                                          0 65-127 Byte Frames  
                                          0 128-255 Byte Frames 
                                      11469 256-511 Byte Frames 
                                          0 512-1023 Byte Frames
                                          0 1024-1522 Byte Frame

Table 2-13 LRE Enet Stats on CPE Field Descriptions for LRE and CPE Interfaces 

Field
Description

Transmit

Bytes

The total number of bytes sent on an interface.

Frames

The total number of frames sent on an interface.

Pause frames

The number of pause frames sent on an interface.

1 collision frames

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

Multiple collisions

The number of frames that are sent after more than one collision occurs.

Late collisions

After a frame is sent, the number of times that a collision is detected on an interface later than 512 bit times.

Excessive collisions

The number of frames that could not be sent on an interface because more than 16 collisions occurs.

Deferred frames

The number of frames for which the first transmission attempt on an interface is not successful. This value excludes frames in collisions.

Carrier sense errors

The number of frames with carrier sense errors.

Receive

Bytes

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

Frames

The total number of frames received on an interface, including multicast frames, broadcast frames, and incorrectly formed frames.

Receive

Broadcast frames

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

Pause frames

The number of pause frames received on an interface.

Alignment errors

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

Collisions and Runts

The number of frames that could not be received on an interface because of collisions because the frame length (in bytes) is too small.

Oversize frames

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

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.


Table 2-14 CPE Fast Ethernet Port Field Descriptions for LRE and CPE Interfaces 

Field
Description

Transmit

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.

Dropped Frames

The total number of frames that are not sent.

Pause Frames

The number of pause frames sent on an interface.

Collisions Frames

The total number of frames that are not sent on an interface because of collisions.

One Collision Frames

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

Multiple Collisions

The number of frames that are sent after more than one collision occurs.

Late Collisions

After a frame is sent, the number of times that a collision is detected on an interface later than 512 bit times.

Excessive Collisions

The number of frames that could not be sent on an interface because more than 16 collisions occurs.

Deferred Frames

The number of frames for which the first transmission attempt on an interface is not successful. This value excludes frames in collisions.

Receive

Bytes

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

Good Bytes

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

Unicast Frames

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

Multicast Frames

The total number of frames successfully received on an 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.

Dropped Frames

The total number of frames successfully received on an interface that are dropped.

Pause Frames

The number of pause frames received on an interface.

Alignment Errors

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

Fragments

The number of frames received on the interface that are smaller than 64 bytes and an invalid FCS value.

Undersize Frames

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

Oversize Frames

The total number of frames received on an interface that are the larger than 1518 bytes.

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.

Excess Size Discards

The total number of frames received on an interface that are dropped because they are larger than 1518 bytes.

Jabbers

The total number of frames received on an interface that are larger than 1522 bytes and have either an FCS or alignment error.

Source Address Chang

The total number of frames received on an interface for which the source address changed.

Symbol Errors

The total number of frames received on an interface that have a valid length (in bytes) but have the symbol errors.

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.

1519 to 1522 byte Frames

The total number of frames that are from 1519 to 1522 bytes.


Related Commands

Command
Description

clear controllers ethernet-controller

Deletes the Ethernet link send and receive statistics on a Fast Ethernet or an LRE switch port on an LRE switch.

show interfaces

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


show controllers lre cpe

Use the show controllers lre cpe privileged EXEC command to display information about the Cisco Long-Reach Ethernet (LRE) customer premises equipment (CPE) devices connected to an LRE switch.

show controllers lre cpe {identity | mfg | protected | version}[interface-id] [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

identity

Display the model numbers of the LRE CPE devices connected to an LRE switch and whether or not the connected CPE devices meet the minimum requirements for management by the LRE switch.

mfg

Display the revision and serial numbers of the connected LRE CPE board, assembly, and system.

protected

Display Cisco 585 LRE CPE Ethernet ports that are configured as protected.

version

Display the version numbers of the various components (hardware, firmware, patch software, and bootloader firmware and application firmware) of the LRE CPE interfaces.

interface-id

(Optional) ID of the LRE switch port.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

The show controllers lre cpe identity privileged EXEC command output shows the type of CPE device attached to each LRE interface. For all Cisco supported CPE devices, the status can be certified, non-certified, or NA:

A certified status means that the CPE device meets the minimum requirements (such as having a certain CPE device patch version) for management by the LRE switch.

A non-certified status means that the CPE device did not meet the minimum requirements. If a CPE device shows a status of non-certified or if the family is not a Cisco 585 LRE CPE, Cisco 576 LRE 997 CPE, or a Cisco 575 LRE CPE, use the show controllers lre cpe mfg privileged EXEC command to verify the CPE manufacturing fields.

An NA status means that there is not a link or there is not any information about that port.

Use the show controllers lre cpe identity privileged EXEC command without specifying an LRE switch port to display the model numbers and status of all connected CPE devices.

Use the show controllers lre cpe mfg privileged EXEC command output to display fields specific to each CPE device unit. The software uses the model number field to identify the kind of CPE device attached to an LRE interface. The System Serial Number is also unique to each CPE device unit.

Use the show controllers lre cpe protected privileged EXEC command without specifying an LRE interface to display the protected port setting for all CPE ports. The Cisco 575 LRE CPE or Cisco 576 LRE 997 CPE devices display a protected field output of NA.

Use the show controllers lre cpe version privileged EXEC command without specifying an LRE switch port to display the version numbers of all CPE interfaces.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre cpe identity command for the Cisco 575 LRE and Cisco 585 LRE CPE devices:

Switch# show controllers lre cpe identity

Port      CPE Model        Status      Family
------   ------------  ---------------  ------
Lo0/1    CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/2    CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/3    CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/4              NA               NA  NA
Lo0/5              NA               NA  NA
Lo0/6    Cisco575-LRE        CERTIFIED  CISCO575-LRE
Lo0/7              NA               NA  NA
Lo0/8    Cisco575-LRE        CERTIFIED  CISCO575-LRE
Lo0/9              NA               NA  NA
Lo0/10             NA               NA  NA
Lo0/11   CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/12   CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/13   CISCO585-LRE        CERTIFIED  CISCO585-LRE
Lo0/14                   NON-CERTIFIED  UNSUPPORTED-MAC-MODE

<output truncated>

This is an example of output from the show controllers lre cpe mfg command that shows the manufacturing information for the Cisco 575 LRE and Cisco 585 CPE devices:

Switch# show controllers lre cpe mfg

CPE Manufacturer Information:

Lo0/1    
Assembly Revision Number:               
Model Number            :CISCO585-LRE   
Model Revision Number   :A0             
Board Assembly Number   :               
Board Serial Number     :               
System Serial Number    :ACT0613004E    

Lo0/2    
Assembly Revision Number:               
Model Number            :CISCO585-LRE   
Model Revision Number   :A0             
Board Assembly Number   :               
Board Serial Number     :               
System Serial Number    :ACT0613005B    
<output truncated>

This is an example of output from the show controllers lre cpe protected command that shows the CPE protected-port information for an LRE interface:

Switch# show controllers lre cpe protected longreachethernet0/9
Interface     Port    Protected
---------     ----    ---------
    Lo0/9       1      true
    Lo0/9       2      true
    Lo0/9       3      true
    Lo0/9       4      true

This is an example of output from the show controllers lre cpe protected command that shows the CPE protected-port information for all LRE interfaces:

Switch# show controllers lre cpe protected
Interface     Port    Protected
---------     ----    ---------
    Lo0/1       1      NA
    Lo0/2       1      NA
    Lo0/3       1      NA
    Lo0/4       1      NA
    Lo0/5       1      NA
    Lo0/6       1      NA
    Lo0/7       1      NA
    Lo0/8       1      false
    Lo0/8       2      false

<output truncated>

This is an example of output from the show controllers lre cpe version command:

Switch# show controllers lre cpe version longreachethernet0/5

Interface     Hw  Sw  Patch  Boot  App
---------     --- --- ------ ----- -----
Lo0/5         52  B4  51     1.02  1.02

Related Commands

Command
Description

cpe protected

Restricts data traffic to individual ports on Cisco 585 LRE CPE ports.

show controllers lre version

Displays the version number of the hardware, software, and patch software components of the switch LRE interface and the CPE LRE interface.


show controllers lre actual

Use the show controllers lre actual privileged EXEC command to display the actual values of the Long-Reach Ethernet (LRE) link on a specific LRE switch port.

show controllers lre interface-id actual {dsrserrs | link | rxpower | snr | txpower | usrserrs}
[
| {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

interface-id

ID of the switch LRE port.

actual

Display the LRE port current status, which might not be the same as the administratively configured settings.

dsrserrs

Display the downstream Reed-Solomon errors on the LRE port.

usrserrs

Display the upstream Reed-Solomon errors on the LRE port.

txpower

Display the remote transmit power (dBm/Hz) on the LRE port.

rxpower

Display the local receive power (dBm/Hz) on the customer premises equipment (CPE) port.

snr

Display the signal-to-noise ratio (SNR) ratio on the LRE port.

link

Display the LRE link status of the LRE port.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

You can use the SNR and Reed-Solomon error information to measure the quality of the LRE link. The SNR is the amount of increased received signal-power (in decibels) relative to the noise-power level that the switch can tolerate without disconnecting from the CPE device. The higher the ratio, the more resilient is the link.

The Reed-Solomon errors show the number of errors detected and corrected in the data being received on and sent from the switch LRE ports. Reed-Solomon errors are the result of noise exceeding the noise margin. For short bursts of noise (such as motor power on or power surges), the interleave feature prevents the loss of Ethernet data packets. Then the number of Reed-Solomon errors exceeds the number of Ethernet CRC errors.

The remote transmit power-rates from the connected CPE devices might be different from each other, depending on how long the cable is between the switch and the CPE device. A longer cable typically causes the CPE device to send a higher signal to overcome the loss effects of distance.

The local receive-power actually displays the switch's adjustment to the incoming power level. These numbers might be different from LRE port to LRE port, as the length of the cables to the CPE devices might be different.

If the SNR is too low for the environment but the link still establishes, the Reed-Solomon error rate is high, and there might be link instability (as shown by the number of Fail events counted). If the network is being used for data only, a high incidence of Ethernet Frame Check Sequence (FCS) errors or micro-interruptions might be tolerable.

For more information about what can affect the LRE link and for the minimum required SNR ratios, see the "LRE Links and LRE Profiles" section in the "Configuring LRE" chapter of the switch software configuration guide for this release.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre interface-id actual dsrserrs command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual dsrserrs
0
Switch#

This is an example of output from the show controllers lre interface-id actual link command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual link
UP
Switch#

This is an example of output from the show controllers lre interface-id actual rxpower command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual rxpower
26.0
Switch#

This is an example of output from the show controllers lre interface-id actual snr command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual snr
27
Switch#

This is an example of output from the show controllers lre interface-id actual txpower command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual txpower
-89.7
Switch#

This is an example of output from the show controllers lre interface-id actual usrserrs command on an LRE port:

Switch# show controllers lre longreachethernet0/2 actual usrserrs
0
Switch#

This is an example of output from the show controllers lre interface-id actual link command on an LRE port:

Switch# show controllers lre longreachethernet0/1 actual link
DOWN
Switch#

Related Commands

Command
Description

show controllers lre admin

Displays the administrative settings of the LRE link on a specific switch LRE port.


show controllers lre admin

Use the show controllers lre interface-id admin privileged EXEC command to display the administrative settings of the Long-Reach Ethernet (LRE) link for a specific switch LRE port.

show controllers lre interface-id admin {dsrate | usrate}[ |{begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

interface-id

ID of the switch LRE port.

admin

Display the administrative settings, which might not be the same as the actual values.

dsrate

Display the downstream rate (in Mbps) of the LRE link.

usrate

Display the upstream rate (in Mbps) of the LRE link.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

This command displays the profile settings of an LRE switch port, even though they might not be active if a global profile is configured on the switch.

The upstream and downstream rates are defined by the profile on the switch LRE port. To change these rates, assign a different profile to the switch LRE port. For information about the LRE profiles, see the switch software configuration guide for this release.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre interface-id admin dsrate and show controllers lre interface-id admin usrate commands:

Switch# show controllers lre longreachethernet0/1 admin usrate
18.750
Switch# show controllers lre longreachethernet0/1 admin dsrate
16.667
Switch# show controllers lre longreachethernet0/2 admin usrate
12.500
Switch# show controllers lre longreachethernet0/2 admin dsrate
12.500

Related Commands

Command
Description

show controllers lre cpe identity

Displays the actual values of the LRE link on a specific switch LRE port.

lre profile

Assigns a profile to all switch LRE ports.

profile (interface configuration)

Assigns a profile to a specific switch LRE port.


show controllers lre link monitor

Use the show controllers lre link monitor privileged EXEC command to display Long-Reach Ethernet (LRE) link monitor information.

show controllers lre monitor {errors | parameters | statistics} {local [interface-id] | remote [interface-id]} [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

errors

Display the LRE Reed-Solomon (RS) errors and Ethernet errors

parameters

Display the LRE operating parameter data collected by the link monitor.

statistics

Display the LRE link monitor statistics.

local

(Optional) Display data from the LRE switch controller.

remote

(Optional) Display data from the customer premises equipment (CPE) device.

interface-id

(Optional) ID of the switch LRE port.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

The link monitor process collects error information at 1-minute intervals for 15 minutes. After 15 minutes, the data is analyzed and stored before starting a new collection sequence. Up to 2 hours of link monitor data can be shown.

Local monitoring collects data from the LRE switch. Remote monitoring collects data from attached CPE device.

The Time heading in the show controllers lre link monitor errors command output shows the timestamp for the last collection sequence. The RS error count shows the cumulative error count from the last reading. Alignment errors, frame check sequence (FCS) errors, receive errors, and oversize errors are the Ethernet statistics collected either at the switch or at the CPE device.

The Time heading in the show controllers lre link monitor parameters command output shows the timestamp for the last collection sequence. The signal-to-noise (SNR) error counter, shown under the SNR Err heading, increments when the SNR value read from the chipset falls below the theoretical SNR added to the threshold.

The Time heading in the show controllers lre link monitor statistics command output shows the timestamp for the last collection sequence. The RS error count shows the cumulative error count from the last reading. This count is cleared only when the interface is shut down or when the clear controllers lre link monitor privileged EXEC command is entered. The RS error alarm shows the number of 1 minute intervals that had RS errors above the configured threshold.

Use the show controllers lre monitor {errors | parameters | statistics} privileged EXEC command without specifying a switch interface to display data for all interfaces.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output that shows how to display LRE RS and Ethernet errors for the LRE switch on an LRE port:

Switch# show controllers lre link monitor errors local longreachethernet0/1

LongReachEthernet0/1:LRE Link Health Monitor Error counts :
Time     RS Errors  Align Errs FCS Errs   Rcv Errs   Oversz Errs
-------- ---------- ---------- ---------- ---------- -----------
14:42:28 			41216			 	0			 0			0				0
14:30:28 			40960		 		0 			 0 			0          0
14:15:28 			40960		 		0 			 0 			0          0
14:00:29			40704		 		0 			 0 			0          0
13:45:28			40704		 		0 			 0 			0          0
13:30:29			40448		 		0 			 0 			0          0
13:15:29		 	40448		 		0 			 0 			0          0
13:00:28	 		40448		 		0 			 0 			0          0

This is an example of output that shows Reed-Solomon and Ethernet errors for a CPE device connected to an LRE port:

Switch# show controllers lre link monitor errors remote longreachethernet0/1

LongReachEthernet0/1:LRE Link Health Monitor Error counts :
Time     RS Errors  Align Errs FCS Errs   Rcv Errs   Oversz Errs
-------- ---------- ---------- ---------- ---------- -----------
14:42:28       6400      45835          0          0          0
14:30:28       6400      45835          0          0          0
14:15:28       6400      45835          0          0          0
14:00:29       6400      45835          0          0          0
13:45:28       6144      45835          0          0          0
13:30:29       6144      45835          0          0          0
13:15:29       6144      45835          0          0          0
13:00:28       6144      45835          0          0          0

This is an example that shows how to display all LRE link monitor parameters for the attached CPE device:

Switch# show controllers lre link monitor parameters remote

LongReachEthernet0/1: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
00:32:30    2      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:30:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:15:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:00:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:45:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:30:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:15:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 

<output truncated>

This is an example that shows how to display all LRE link monitor statistics for the LRE controller:

Switch# show controllers lre link monitor statistics local

LongReachEthernet0/1: LRE Link Health Monitor Stats :
                     RS Errors   Link Fail   Freeze
Time     Samples Count     Alarm   Count     Count 
-------- ------- --------------- ---------- ----------
06:58:30   13          0    0          2          3 
06:45:30   15          0    0          2          3 
06:30:30   15          0    0          2          3 
06:15:30   15          0    0          2          3 
06:00:30   15          0    0          2          3 
05:45:30   15          0    0          2          3 
05:30:30   15          0    0          2          3 
05:15:30   15          0    0          2          3 

Related Commands

Command
Description

clear controllers lre link monitor

Deletes LRE link monitor data.

link monitor

Enables the LRE link monitor on a port.

link monitor logging

Enables link monitor event logging per port.

link monitor threshold rserr

Sets a Reed-Solomon error threshold for the LRE link monitor.

link monitor threshold snr

Sets an signal-to-noise margin for the LRE link monitor.


show controllers lre log

Use the show controllers lre log user EXEC command without keywords to display the history of link, configuration, and timer events for a specific Long-Reach Ethernet (LRE) port or for all switch LRE ports. Use this command with keywords to display information about the LRE event log level.

show controllers lre log [level] [interface-id] [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

level

(Optional) Display information about the LRE event log level.

interface-id

(Optional) ID of the switch LRE port.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

Use the show controllers lre log command without specifying a switch LRE port to display the events for all LRE switch ports. The time-stamped and sequentially tagged log entries can be helpful in confirming LRE link drops and configuration changes.

Use the show controllers lre log level command without specifying an LRE switch port to list the log level for each LRE port on the switch.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre log command that shows events on an LRE interface:

Switch> show controllers lre log longreachethernet0/5

LongReachEthernet0/5: Events Log: ==================================
  1d00h: [0]: State RESTART: Got event:Reset

  1d00h: [1]: State MODEZERO_APPLIED: Got event:Link Up

  1d00h: [2]: State MODEZERO_APPLIED: Got event:Link Down

  1d00h: [3]: State PROFILE_APPLIED: Got event:Link Up

  1d00h: [4]: State PROFILE_LINKUP: Got event:Link Down

  1d00h: [5]: State PROFILE_LINKUP: Got event:Link Up

  1d00h: [6]: State PROFILE_LINKUP: Got event:Link Down

  1d00h: [7]: State PROFILE_LINKUP: Got event:Link Up

This is an example of output from the show controllers lre log level command that displays the log level on an LRE port:

Switch> show controllers lre log level longreachethernet0/1
Port   Log Level
================
Lo0/1  Logging disabled

Related Commands

Command
Description

clear controllers ethernet-controller

Deletes the history of link, configuration, and timer events for a specific switch LRE port or for all LRE ports on the switch.

logging lre

Specifies the logging level on the LRE port.

show controllers lre profile

Displays the log level for a specific switch LRE port or for all LRE ports on the switch.


show controllers lre profile

Use the show controllers lre profile privileged EXEC command to display information about the Long-Reach Ethernet (LRE) profiles and sequences available on the switch.

show controllers lre profile {details | names} [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

details

Display information about the LRE profiles and sequences available on the switch.

names

Display information about the Long-Reach Ethernet (LRE) profiles available on the switch.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

Use the show controllers lre profile details privileged EXEC command to see the profiles and sequences running on each port. This command also shows global profiles and sequences.

For information about LRE profiles supported on your switch and about LRE links, see the "LRE Profiles" section in the "Configuring LRE" chapter of the switch software configuration guide for this release.


Note Use the information in the software configuration guide only as a guideline. Factors such as the type of cable that you use, how it is bundled, and the interference and noise on the LRE link can affect the actual LRE link performance. Contact Cisco Systems for information about limitations and optimization of LRE link performance. The net data rates are slightly less than the gross data rates displayed by the show controllers lre profile names command output.


Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre profile details command on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches:

Switch# show controllers lre profile details

Global Profile:LRE-10-3

Interface  Configured Profile  Running Profile     Type
---------  ------------------  ---------------     ------
Lo0/1      LRE-10-5            LRE-15              Port Sequence
Lo0/2      LRE-10-3            LRE-10-3            Global Profile
Lo0/3      LRE-10-3            LRE-15              Port Sequence
Lo0/4      LRE-10-3            LRE-10-3            Global Profile
Lo0/5      LRE-10-3            LRE-10-3            Global Profile
Lo0/6      LRE-10-3            LRE-10-3            Global Profile
Lo0/7      LRE-10-3            LRE-15              Global Profile
Lo0/8      LRE-10-3            LRE-10-3            Global Profile
Lo0/9      LRE-10-3            LRE-10-3            Global Profile
Lo0/10     LRE-10-3            LRE-10-3            Global Profile
Lo0/11     LRE-10-3            LRE-10-3            Global Profile
Lo0/12     LRE-10-3            LRE-10-3            Global Profile

<output truncated>

This is an example of output from the show controllers lre profile details command on the Catalyst 2950ST-24 LRE 997 switch:

Switch# show controllers lre profile details
Global Profile:LRE-6

Interface  Configured Profile  Running Profile     Type
---------  ------------------  ---------------     ------
Lo0/1      LRE-6               LRE-6               Global Profile
Lo0/2      LRE-6               LRE-6               Global Profile
Lo0/3      LRE-6               LRE-6               Global Profile
Lo0/4      LRE-6               LRE-6               Global Profile
Lo0/5      LRE-6               LRE-6               Global Profile
Lo0/6      LRE-6               LRE-6               Global Profile
Lo0/7      LRE-6               LRE-6               Global Profile
Lo0/8      LRE-6               LRE-6               Global Profile
Lo0/9      LRE-6               LRE-6               Global Profile
Lo0/10     LRE-6               LRE-6               Global Profile
Lo0/11     LRE-6               LRE-6               Global Profile
Lo0/12     LRE-6               LRE-6               Global Profile

<output truncated>

This is an example of output from the show controllers lre profile names command on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches:

Switch# show controllers lre profile names

Profile Name         Type               Downstream    Upstream
                                        Rate(Mbps)    Rate(Mbps)
------------         -----------------  ----------    ----------
 LRE-15              System-Configured    16.667       18.750 
 LRE-10              System-Configured    12.500       12.500 
 LRE-5               System-Configured     6.250        6.250 
 LRE-998-15-4        System-Configured    16.667        4.688 
 LRE-997-10-4        System-Configured    12.500        4.688 
 LRE-15LL            System-Configured    16.667       18.750 
 LRE-10LL            System-Configured    12.500       12.500 
 LRE-5LL             System-Configured     6.250        6.250 
 LRE-10-5            System-Configured    12.500        6.250 
 LRE-10-3            System-Configured    12.500        3.125 
 LRE-10-1            System-Configured    12.500        1.563 
 LRE-8               System-Configured     9.375        9.375 
 LRE-7               System-Configured     8.333        8.333 
 LRE-15-5            System-Configured    16.667        6.250 
 LRE-15-3            System-Configured    16.667        3.125 
 LRE-15-1            System-Configured    16.667        1.563 
 LRE-4               System-Configured     4.167        4.167 
 LRE-3               System-Configured     3.125        3.125 
 LRE-2               System-Configured     2.083        2.083 
 LRE-4-1LL           System-Configured     4.167        1.563 

This is an example of output from the show controllers lre profile names command on the Catalyst 2950ST-24 LRE 997 switch:

Switch# show controllers lre profile names
Profile Name         Type               Downstream    Upstream
                                        Rate(Mbps)    Rate(Mbps)
------------         -----------------  ----------    ----------
 LRE-12-9            System-Configured    12.500        9.375
 LRE-12-3            System-Configured    12.500        3.125
 LRE-9               System-Configured     9.375        9.375
 LRE-9-6             System-Configured     9.375        6.250
 LRE-9-4             System-Configured     9.375        4.688
 LRE-9-3             System-Configured     9.375        3.125
 LRE-6               System-Configured     6.250        6.250
 LRE-6-4             System-Configured     6.250        4.688
 LRE-6-3             System-Configured     6.250        3.125
 LRE-4               System-Configured     4.688        4.688

Related Commands

Command
Description

lre profile

Assigns an LRE profile to all the LRE ports on the switch.


show controllers lre sequence

Use the show controllers lre sequence privileged EXEC command to display the list of sequences, the profiles that are configured in that sequence, and the downstream and upstream rates of the corresponding profiles.

show controllers lre sequence [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

Use the show controllers lre sequence command to display the list of sequences supported in the switch. This command displays the system-defined and user-defined sequences.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show controllers lre sequence command on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches:

Switch# show controllers lre sequence

Global Sequence:LRE-SEQ-COMPLETE-REACH

Sequence:LRE-SEQ-COMPLETE-REACH     Type:System-Configured

                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15            16.667       18.750 
                 LRE-10            12.500       12.500 
                 LRE-15-5          16.667        6.250 
                 LRE-10-5          12.500        6.250 
                 LRE-8              9.375        9.375 
                 LRE-7              8.333        8.333 
                 LRE-15-3          16.667        3.125 
                 LRE-10-3          12.500        3.125 
                 LRE-5              6.250        6.250 
                 LRE-15-1          16.667        1.563 
                 LRE-10-1          12.500        1.563 
                 LRE-4              4.167        4.167 
                 LRE-3              3.125        3.125 
                 LRE-2              2.083        2.083 
                 LRE-4-1            4.167        1.563 

Sequence:LRE-SEQ-DOWNSTREAM         Type:System-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15            16.667       18.750 
                 LRE-15-5          16.667        6.250 
                 LRE-15-3          16.667        3.125 
                 LRE-15-1          16.667        1.563 
                 LRE-10            12.500       12.500 

<output truncated>

This is an example of output from the show controllers lre sequence command on the Catalyst 2950ST-24 LRE 997 switch:

Switch# show controllers lre sequence

Global Sequence:N/A

Sequence:LRE-SEQ-COMPLETE-REACH     Type:System-Configured

                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-12-9          12.500        9.375
                 LRE-12-3          12.500        3.125
                 LRE-9              9.375        9.375
                 LRE-9-6            9.375        6.250
                 LRE-9-4            9.375        4.688
                 LRE-6              6.250        6.250
                 LRE-6-4            6.250        4.688
                 LRE-9-3            9.375        3.125
                 LRE-4              4.688        4.688
                 LRE-6-3            6.250        3.125
                 LRE-4-3            4.688        3.125

Sequence:LRE-SEQ-DOWNSTREAM         Type:System-Configured

                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-12-9          12.500        9.375
                 LRE-12-3          12.500        3.125
                 LRE-9              9.375        9.375
                 LRE-9-6            9.375        6.250
                 LRE-9-4            9.375        4.688

<output truncated> 

Related Commands

Command
Description

lre rate selection sequence

Assigns a rate selection sequence to the entire switch.

lre sequence

Defines a user-defined sequence.


show controllers lre status

Use the show controllers lre status privileged EXEC command to display the Long-Reach Ethernet (LRE) link statistics and profile information on a switch LRE port, including link state, link duration, profile name, and data rates.

show controllers lre status {cpe | interleave | link | profile | psd | sequence [detail]} [interface-id]
[
| {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

cpe

Display information about the customer premises equipment (CPE) 10/100 Ethernet ports.

interleave

Display the interleave block size values on the LRE interfaces.

link

Display the various parameters and status associated with the LRE link.

profile

Display the various administrative parameters and status associated with the LRE link.

psd

Display the power-related status.

sequence

Display the status of profiles in a sequence. Possible status values are converged, waiting on link, executing, and locked.

detail

(Optional) Display additional information about the sequences, such as margins, locked profiles, and convergence times.

interface-id

(Optional) ID of the switch LRE port.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.

12.1(11)YJ4

The interleave keyword was added.

12.1(14)EA1

The cpe keyword was added.


Usage Guidelines

Use the show controllers lre status privileged EXEC command to display the status of all switch LRE ports.

Use the signal-to-noise ratio (SNR) and Reed-Solomon error information to measure the quality of the LRE link. The SNR represents the amount of increased received signal power (in decibels) relative to the noise power-level that the switch can tolerate without disconnecting from the CPE device. The higher the ratio, the more resilient is the link.

The Reed-Solomon errors show the number of errors detected and corrected in the data being received on and sent from the switch LRE ports. Reed-Solomon errors are the result of noise exceeding the noise margin. For short bursts of noise (such as motor power on or power surges), the interleaver prevents the loss of Ethernet data packets. The number of Reed-Solomon errors then exceeds the number of Ethernet CRC errors.


Note The Reed-Solomon errors are reset each time that you enter the show controllers lre status link command.


The remote transmit power levels from the connected CPE devices might be different from each other, depending on how long the cable is between the switch and the CPE device. A longer cable typically causes the CPE device to send a higher signal to overcome the loss effects of distance.

The local receive-power rates actually displays the switch's adjustment to the incoming power level. These numbers might be different from LRE port to LRE port, as the length of the cables to the CPE devices might be different.

The interleaver columns display the interleaver block size for both directions of data. A higher interleaver setting is less susceptible to certain kinds of impairments but can introduce a very small amount of delay in the data path.

The PMD-S column refers to physical media dependent status and is provided as diagnostic information.

For more information about what can affect the LRE link and for the minimum required SNR ratios, see the "LRE Links and LRE Profiles" section in the "Configuring LRE" chapter of the switch software configuration guide for this release.

The sequence and sequence detail keywords display these status codes of profiles and sequences during rate selection:

Converged—Rate selection has converged on a profile.

Locked—Rate selection has converged on a profile, and the port is locked to that profile.

Executing—Rate selection is running on the port.

Waiting on Link—No link is established.

N/A—Sequence is not assigned to the port.

You can adjust the noise level during convergence by using the margin interface configuration command.

Use the show controllers lre status cpe [interface-id] privileged EXEC command to display information about a specific CPE port or all the CPE ports.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output that shows link information for an LRE interface:

Switch# show controller lre status link longreachethernet0/2

Port   Link SNR   RS Errs    CPE-Tx   Sw-AGC-Gain  Interleaver  PMD-S
            (dB)            (dBm/Hz)     (dB)     Rx-Bsz Tx-Bsz        
------ ---- ---- ----------- -------- ----------- ------------- -----
Lo0/2  UP     41       4829   - 57.7    -  7.6     16     16    0x04

This is an example of output from the show controllers lre status profile command:

Switch# show controllers lre status profile

Port    Link  Uptime   Profile               DSRate  USRate   Fail
------  ---- --------  -------------------   ------  ------   ----
Lo0/1   UP   2d23h     LRE-10                12.500  12.500     0
Lo0/2   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/3   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/4   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/5   DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/6   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/7   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/8   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/9   UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/10  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/11  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/12  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/13  UP   2d23h     LRE-10                12.500  12.500     0
Lo0/14  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/15  UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/16  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/17  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/18  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/19  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/20  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/21  UP   2d23h     LRE-10                 4.167   1.563     0
Lo0/22  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/23  DOWN 00:00:00  LRE-10                 0.000   0.000     0
Lo0/24  DOWN 00:00:00  LRE-10                 0.000   0.000     0

This is an example of output from the show controllers lre status psd command:

Switch# show controllers lre status psd

             ------- Switch ------------   ----------- CPE -----------
Port   Link SNR  RSErr     TxPwr  AGCgain SNR  RSErr     TxPwr  AGCgain
------ ---- --- ---------- ------ ------- --- ---------- ------ -------
Lo0/1  UP    32          0 - 6.13   13.0  43          0  - 85.6  -  2.0
Lo0/2  UP    32          0 - 6.13   15.1  42          0  - 85.9  -  2.0
Lo0/3  UP    32          0 - 6.13   13.5  42          0  - 85.6  -  2.0
Lo0/4  DOWN  10          0 - 5.85   63.9   0          0     0.0     0.0
Lo0/5  DOWN  10          0 - 5.85   58.9   0          0     0.0     0.0
Lo0/6  UP    33          0 - 6.13   15.1  42          0  - 85.9  -  2.0
Lo0/7  DOWN  10          0 - 5.85   54.2   0          0     0.0     0.0
Lo0/8  UP    33          0 - 6.13   14.6  42          0  - 85.9  -  2.5
Lo0/9  DOWN  10          0 - 5.85   52.9   0          0     0.0     0.0
Lo0/10 DOWN  10          0 - 5.85   61.5   0          0     0.0     0.0
Lo0/11 UP    33          0 - 6.13   15.1  42          0  - 85.9  -  1.6
Lo0/12 UP    33          0 - 6.13   15.1  42          0  - 85.9  -  2.5
Lo0/13 UP    33          0 - 6.13   15.1  42          0  - 85.9  -  2.5
Lo0/14 DOWN  10     268305 - 5.85   57.5   0          0     0.0     0.0
Lo0/15 DOWN  10          0 - 5.85   50.7   0          0     0.0     0.0
Lo0/16 UP    35         38 - 5.85   15.1  41       1238  - 85.9  -  6.4
Lo0/17 DOWN  10     767128 - 5.85   61.8   0          0     0.0     0.0
Lo0/18 DOWN  10          0 - 5.85   54.2   0          0     0.0     0.0
Lo0/19 DOWN  10          0 - 5.85   51.5   0          0     0.0     0.0
Lo0/20 DOWN  10          0 - 5.85   54.7   0          0     0.0     0.0
Lo0/21 DOWN  10          0 - 5.85   67.8   0          0     0.0     0.0
Lo0/22 DOWN  10          0 - 5.85   50.7   0          0     0.0     0.0
Lo0/23 DOWN  10          0 - 5.85   66.5   0          0     0.0     0.0
Lo0/24 DOWN  10          0 - 5.85   53.6   0          0     0.0     0.0

This is an example of output from the show controllers lre status sequence command:

Switch# show controllers lre status sequence

Port    Sequence                 Status          Profile
-----   -----------------------  --------------  ---------------    
Lo0/1   LRE-SEQ-DOWNSTREAM       Converged       LRE-15               
Lo0/2   N/A                      N/A             N/A                  
Lo0/3   LRE-SEQ-SYM              Converged       LRE-15 

This is an example of output from the show controllers lre status interleave command:

Switch# show controllers lre status interleave longreachethernet0/2

Port    Link Profile           Line Rate      Block Size   Delay(mSec)
                              DS        US    DS      US   DS       US
------  ---- ---------------- --------------  -----------  -------------
Lo0/2   UP   LRE-6             6.250   6.250   16     16   20.316 20.316

This is an example of output using the details keyword to obtain further information about the sequence:

Switch# show controllers lre status sequence detail

Lo0/1 :
Sequence:LRE-SEQ-DOWNSTREAM       Status:Converged       Attempts:1
Profile:LRE-15                    Convergence Time: 00:01:54
Rate-Selection:Enabled            Locking:Not-Configured
Downstream Margin:2               Upstream Margin:0

Lo0/2 :
Sequence:N/A                      Status:N/A             Attempts:0
Profile:N/A                       Convergence Time: 00:00:00
Rate-Selection:Disabled            Locking:Not-Configured
Downstream Margin:0               Upstream Margin:0

<output truncated>

This is an example of output from the show controllers lre status cpe command:

Switch# show controllers lre status cpe
Lo0/1 :                    CPE-TYPE:Cisco575-LRE
Port      Status      Speed   Duplex     Protected
----   ------------   -----   ------     ---------
  1    notconnected      NA       NA     false

Lo0/2 :                    CPE-TYPE:NA
Port      Status      Speed   Duplex     Protected
----   ------------   -----   ------     ---------
  1    NA                NA       NA      NA

Lo0/3 :                    CPE-TYPE:CISCO585-LRE
Port      Status      Speed   Duplex     Protected
----   ------------   -----   ------     ---------
  1    notconnected    auto       NA     false
  2    notconnected    auto       NA     true
  3    notconnected    auto       NA     false
  4    notconnected    auto       NA     false
  5    connected        100     half     false

Related Commands

Command
Description

margin

Specifies the margin value used to determine link quality during LRE rate selection.

show controllers lre sequence

Displays the sequence running on a specific switch LRE port.

show controllers lre profile

Displays information about the LRE profiles available on the switch.

show controllers lre cpe

Displays the actual values of the LRE link on a specific switch LRE port.

show controllers lre admin

Displays the administrative settings of the LRE link on a specific switch LRE port.

show controllers lre profile

Displays information about the LRE profiles available on the switch.


show controllers lre version

Use the show controllers lre version privileged EXEC command to display the version numbers of the various components (hardware, firmware, and patch software) that make up the Long-Reach Ethernet (LRE) switch interface.

show controllers lre version [interface-id] [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

interface-id

(Optional) ID of the switch LRE port.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

Use the show controllers lre version command without specifying a switch LRE port to display the version numbers of all switch LRE interfaces.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output that shows the version information for an LRE interface:

Switch# show controllers lre version longreachethernet0/2
Interface Hw  Sw  Patch   
--------  --- --- -----
Lo0/2     32  B4  50    

Related Commands

Command
Description

show controllers lre cpe

Displays the model numbers of the LRE CPE devices connected to the LRE switch and shows whether or not the connected CPE devices meet the minimum requirements for management by the LRE switch.


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 [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) ID of the switch interface.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(22)EA1

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show controllers utilization
Port       Receive Utilization  Transmit Utilization
Fa0/1              0                    0
Fa0/2              0                    0

<output truncated>

Total Ports : 12
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 fastethernet0/1 utilization
Receive Bandwidth Percentage Utilization   : 0
Transmit Bandwidth Percentage Utilization  : 0

Table 2-15 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 or displays the statistics read from Long-Reach Ethernet (LRE) and customer premises equipment (CPE) ports.


show dot1x

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

show dot1x [all] | [interface interface-id] | [statistics [interface interface-id]] [ | {begin | exclude | include} expression]

Syntax Description

all

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

interface interface-id

(Optional) Display the IEEE 802.1x status for the specified interface.

statistics [interface interface-id]

(Optional) Display IEEE 802.1x statistics for the switch or the specified interface.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.

12.1(14)EA1

The all keyword was added.


Usage Guidelines

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

If you specify the statistics keyword without the interface interface-id option, statistics appear for all interfaces. If you specify the statistics keyword with the interface interface-id option, statistics appear for the specified interface.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

These are examples of output from the show dot1x and the show dot1x all privileged EXEC commands:

Switch# show dot1x 
Sysauthcontrol                    = Enabled 
Supplicant Allowed In Guest Vlan  = Disabled
Dot1x Protocol Version            = 1 
Dot1x Oper Controlled Directions  = Both 
Dot1x Admin Controlled Directions = Both 

Switch# show dot1x all
Dot1x Info for interface FastEthernet 0/3 
----------------------------------------------------
Supplicant MAC 00d0.b71b.35de
   AuthSM State      = CONNECTING
   BendSM State      = IDLE
PortStatus        = UNAUTHORIZED
MaxReq            = 2 
HostMode          = Single 
Port Control      = Auto
QuietPeriod       = 60 Seconds 
Re-authentication = Disabled 
ReAuthPeriod      = 3600 Seconds
ServerTimeout     = 30 Seconds 
SuppTimeout       = 30 Seconds 
TxPeriod          = 30 Seconds 
Guest-Vlan        = 0 

Dot1x Info for interface FastEthernet 0/7 
----------------------------------------------------
PortStatus        = UNAUTHORIZED
MaxReq            = 2 
HostMode          = Multi 
Port Control      = Auto
QuietPeriod       = 60 Seconds 
Re-authentication = Disabled 
ReAuthPeriod      = 3600 Seconds
ServerTimeout     = 30 Seconds 
SuppTimeout       = 30 Seconds 
TxPeriod          = 30 Seconds 
Guest-Vlan        = 0 

This is an example of output from the show dot1x all privileged EXEC command when a restricted VLAN is configured:

Switch# show dot1x all
Dot1x Info for interface GigabitEthernet0/1 
----------------------------------------------------
Supplicant MAC 0002.b3eb.0df6
AuthSM State          = AUTHENTICATED(AUTH-FAIL-VLAN)
BendSM State          = IDLE
Posture               = N/A
PortStatus            = AUTHORIZED(AUTH-FAIL-VLAN)
MaxReq                = 2 
MaxAuthReq            = 2 
HostMode              = Single 
PortControl           = Auto
ControlDirection      = Both
QuietPeriod           = 10 Seconds 
Re-authentication     = Disabled 
ReAuthPeriod          = 3600 Seconds
ServerTimeout         = 30 Seconds 
SuppTimeout           = 30 Seconds 
TxPeriod              = 10 Seconds 
Guest-Vlan            = 3 
AuthFail-Vlan         = 4 
AuthFail-Max-Attempts = 3 

This is an example of output from the show dot1x interface fastethernet0/3 privileged EXEC command:

Switch# show dot1x interface fastethernet0/3
Supplicant MAC 00d0.b71b.35de
   AuthSM State      = AUTHENTICATED (AUTH-FAIL-VLAN)
   BendSM State      = IDLE
ReAuthPeriod = 4000 Seconds { (From Authentication Server) | (Locally Configured) }
ReAuthAction = { Terminate | Reauthenticate }
TimeToNextReauth = 1453 Seconds
PortStatus        = AUTHORIZED
MaxReq            = 2 
HostMode          = Single (AUTH-FAIL-VLAN) 
Port Control      = Auto
QuietPeriod       = 60 Seconds 
Re-authentication = Disabled 
ReAuthPeriod      = 3600 Seconds
ServerTimeout     = 30 Seconds 
SuppTimeout       = 30 Seconds 
TxPeriod          = 30 Seconds 
Guest-Vlan        = 0 

This is an example of output from the show dot1x statistics interface fastethernet0/3 command. Table 2-16 describes the fields in the display.

Switch# show dot1x statistics interface fastethernet0/3
PortStatistics Parameters for Dot1x 
--------------------------------------------
TxReqId = 15    TxReq = 0       TxTotal = 15 
RxStart = 4     RxLogoff = 0    RxRespId = 1    RxResp = 1
RxInvalid = 0   RxLenErr = 0    RxTotal= 6
RxVersion = 1   LastRxSrcMac 00d0.b71b.35de 

Table 2-16 show dot1x statistics Field Descriptions 

Field
Description

TxReqId

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

TxReq

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

TxTotal

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

RxStart

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

RxLogoff

Number of EAPOL-logoff frames that have been received.

RxRespId

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

RxResp

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

RxInvalid

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

RxLenErr

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.

RxVersion

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 control-direction

Resets the configurable IEEE 802.1x parameters to their default values.


show env

Use the show env user EXEC command to display fan information for the switch.

show env {all | fan | power | rps} [ | {begin | exclude | include} expression]

Syntax Description

all

Display both fan and temperature environmental status.

fan

Display the switch fan status (only available in privileged EXEC mode).

power

Display the internal power supply status.

rps

Display the Redundant Power System (RPS) status.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(12c)EA1

The fan and power keywords were added.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show env all
FAN is OK
Internal POWER supply is FAULTY
RPS is present
RPS is supplying power

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

Switch# show env fan
FAN 1 is FAULTY

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

Switch> show env power
Internal POWER supply is FAULTY

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

Switch> sho env rps
RPS is supplying power

show errdisable recovery

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

show errdisable recovery [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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            Disabled
gbic-invalid         Disabled
psecure-violation    Disabled
gbic-invalid         Disabled
dhcp-rate-limit      Disabled
unicast-flood        Disabled
loopback             Disabled
Timer interval:300 seconds

Interfaces that will be enabled at the next timeout:

Interface    Errdisable reason    Time left(sec)
---------    -----------------    --------------
Gi0/1       link-flap             279 


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


Related Commands

Command
Description

errdisable recovery

Configures the recover mechanism variables.

show interfaces trunk

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 | load-balance | port | port-channel | summary} [ | {begin | exclude | include} expression]

Syntax Description

channel-group-number

(Optional) Number of the channel group. The range is 1 to 6.

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.

summary

Display a one-line summary per channel-group.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced. It replaced the show port group command.

12.1(14)EA1

The brief keyword was removed.


Usage Guidelines

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

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show etherchannel 1 detail
Group state = L2
Ports: 1   Maxports = 8
Port-channels: 1 Max Port-channels = 1
                Ports in the group:
                -------------------
Port: Fa0/3
------------

Port state    = Down Not-in-Bndl
Channel group = 1           Mode = Automatic-Sl     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Pseudo port-channel = Po1
Port index    = 0           Load = 0x00

Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.        P - Device learns on physical port.
        d - PAgP is down.
Timers: H - Hello timer is running.        Q - Quit timer is running.
        S - Switching timer is running.    I - Interface timer is running.

Local information:
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa0/3     dA    U1/S1           1s       0        200        Any      0

Age of the port in the current state: 10d:23h:07m:37s
                Port-channels in the group:
                ----------------------

Port-channel: Po1
------------

Age of the Port-channel   = 03d:02h:22m:43s
Logical slot/port   = 1/0           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 etherchannel 1 summary command:

Switch> show etherchannel 1 summary
Flags:  D - down        P - in port-channel
        I - stand-alone s - suspended
        R - Layer3      S - Layer2
		u - unsuitable for bundling
        U - port-channel in use 
		d - default port
Group Port-channel  Ports
-----+------------+-----------------------------------------------------------
1     Po1(SU)     Fa0/1(Pd)		 Fa0/2(P)

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

Switch> show etherchannel 1 port
                Ports in the group:
                -------------------
Port: Fa0/3
------------

Port state    = Down Not-in-Bndl
Channel group = 1           Mode = Automatic-Sl     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Pseudo port-channel = Po1
Port index    = 0           Load = 0x00

Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.        P - Device learns on physical port.
        d - PAgP is down.
Timers: H - Hello timer is running.        Q - Quit timer is running.
        S - Switching timer is running.    I - Interface timer is running.

Local information:
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa0/3     dA    U1/S1           1s       0        200        Any      0

Age of the port in the current state: 10d:23h:13m:21s

Related Commands

Command
Description

channel-group

Assigns an Ethernet interface to an EtherChannel group.

interface port-channel

Accesses or creates the port channel.


show file

Use the show file privileged EXEC command to display a list of open file descriptors, file information, and file system information.

show file {descriptors | information {device:}filename | systems} [ | {begin | exclude |
include} expression]

Syntax Description

descriptors

Display a list of open file descriptors.

information

Display file information.

device:

Device containing the file. Valid devices include the switch flash memory.

filename

Name of file.

systems

Display file system information.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(6)EA2

The descriptors and information keywords were added.


Usage Guidelines

File descriptors are the internal representations of open files. You can use this command to see if another user has a file open.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show file descriptors command:

Switch# show file descriptors
File Descriptors:
FD  Position  Open  PID  Path
0    187392   0001    2  tftp://temp/hampton/c2950g.a
1    184320   030A    2  flash:c2950-i-m.a

Table 2-17 describes the fields in the show file descriptors command output.

Table 2-17 show file descriptors Field Descriptions 

Field
Description

FD

File descriptor. The file descriptor is a small integer used to specify the file once it has been opened.

Position

Byte offset from the start of the file.

Open

Flags supplied when opening the file.

PID

Process ID of the process that opened the file.

Path

Location of the file.


This is an example of output from the show file information nvram:startup-config command:

Switch# show file information nvram:startup-config
nvram:startup-config:
  type is ascii text

Table 2-18 lists the possible file types for the previous example.

Table 2-18 Possible File Types 

Field
Description

ascii text

Configuration file or other text file.

coff

Runable image in coff format.

ebcdic

Text generated on an IBM mainframe.

image (a.out)

Runnable image in a.out format.

image (elf)

Runnable image in elf format.

lzw compression

Lzw compressed file.

tar

Text archive file used by the CIP.


This is an example of output from the show file systems command:

Switch# show file systems
File Systems:

     Size(b)     Free(b)      Type  Flags  Prefixes
*    7741440      433152     flash     rw   flash:
     7741440      433152   unknown     rw   zflash:
       32768       25316     nvram     rw   nvram:
           -           -   network     rw   tftp:
           -           -    opaque     rw   null:
           -           -    opaque     rw   system:
           -           -    opaque     ro   xmodem:
           -           -    opaque     ro   ymodem:
           -           -   network     rw   rcp:
           -           -   network     rw   ftp:

For this example, Table 2-19 describes the fields in the show file systems command output. Table 2-20 lists the file system types. Table 2-21 lists the file system flags.

Table 2-19 show file systems Field Descriptions 

Field
Description

Size(b)

Amount of memory in the file system, in bytes.

Free(b)

Amount of free memory in the file system, in bytes.

Type

Type of file system.

Flags

Permissions for file system.

Prefixes

Alias for file system.


Table 2-20 File System Types 

Field
Description

disk

The file system is for a rotating medium.

flash

The file system is for a flash memory device.

network

The file system is a network file system, such as TFTP, rcp, or FTP.

nvram

The file system is for an NVRAM device.

opaque

The file system is a locally generated pseudo file system (for example, the system) or a download interface, such as brimux.

rom

The file system is for a ROM or EPROM device.

tty

The file system is for a collection of terminal devices.

unknown

The file system is of unknown type.


Table 2-21 File System Flags

Field
Description

ro

The file system is read-only.

wo

The file system is write-only

rw

The file system is read/write.


show flowcontrol

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

show flowcontrol [interface interface-id | module module-number] [ | {begin | exclude | include} expression]

Syntax Description

interface interface-id

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

module module-number

(Optional) Display the flow control status and statistics for all Gigabit Ethernet interfaces. The only valid module number value is 0.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(14)EA1

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. (Flowcontrol is supported only on Gigabit Ethernet interfaces.) The output from the show flowcontrol command is the same as the output from the show flowcontrol module module-number command.

Use the show flowcontrol interface interface-id command to display flow control configuration and status information about the interfaces on the switch.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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
---------  -------- -------- -------- --------    ------- -------
Gi0/1      Unsupp.  Unsupp.  off      off         0       0
Gi0/2      desired  off      off      off         0       0

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

Switch> show flowcontrol gigabitethernet0/2
Port       Send FlowControl  Receive FlowControl  RxPause TxPause
           admin    oper     admin    oper
---------  -------- -------- -------- --------    ------- -------
Gi0/2     desired  off      off      off         0       0

Related Commands

Command
Description

flowcontrol

Sets the receive flow-control state for an interface.


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 module-number] | cpe [port port-id] | description | etherchannel | flowcontrol | media [interface-id] | pruning | stats | status [err-disabled] | switchport | trunk | transceiver properties] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) Valid interfaces include physical ports (including type, slot, and port number) and port channels. The port-channel range is 1 to 6.

vlan vlan-id

(Optional) VLAN ID. The range is 1 to

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 [module module-number]

(Optional) Display the capabilities of the specified interface or all interfaces on the switch. The module number is always 0. If you enter an interface ID, the module keyword is not visible.

cpe [port port-id]

(Optional) Display link status, speed, and duplex of all the customer premises equipment (CPE) Ethernet ports. You must enter an interface ID to display this keyword.

port port-id—Display only the designated CPE Ethernet port. The range is 1 to 4.

These keywords are available only on Long-Reach Ethernet (LRE) switches.

description

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

etherchannel

(Optional) Display interface EtherChannel information.

flowcontrol

(Optional) Display interface flowcontrol information.

media [interface-id]

(Optional) Display the type of media connection. This keyword is available only on LRE switches.

pruning

(Optional) Display interface trunk VTP pruning information.

stats

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

status [err-disabled]

(Optional) Display the status of the interface, or display interfaces in error-disabled state.

switchport

(Optional) Display the administrative and operational status of a switching port.

trunk

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

transceiver properties

(Optional) Display speed and duplex settings for an interface.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.



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


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(11)YJ

The cpe, port port-id, and media keywords were added.

12.1(12c)EA1

The capabilities keyword was added.

12.1(22)EA1

The transceiver and properties keywords were added.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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      17950    2351279       3205     411175
                     ARP       8626     552064         62       3720
Interface Vlan5 is disabled

FastEthernet0/1
                Protocol    Pkts In   Chars In   Pkts Out  Chars Out
           Spanning Tree    2956958  179218508      34383    2131700
                     CDP      14301    5777240      14307    5722418
                     VTP          0          0       1408     145908
                     DTP      28592    1572560          0          0

<output truncated>

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

Switch# show interfaces fastethernet0/1 capabilities 
FastEthernet0/1
  Model:                 WS-C2950G-48-EI
  Type:                  10/100BaseTX
  Speed:                 10,100,auto
  Duplex:                half,full,auto
  UDLD:                  yes
  Trunk encap. type:     802.1Q
  Trunk mode:            on,off,desirable,nonegotiate
  Channel:               yes
  Broadcast suppression: percentage(0-100)
  Flowcontrol:           rx-(none),tx-(none)
  Fast Start:            yes
  CoS rewrite:           yes
  ToS rewrite:           yes
  Inline power:          no
  SPAN:                  source/destination
  PortSecure:            Yes
  Dot1x:                 Yes

This is an example of output from the show interfaces command for a specified interface:

Switch# show interfaces fastethernet0/1 
FastEthernet0/1 is up, line protocol is down
  Hardware is Fast Ethernet, address is 0005.7428.09c1 (bia 0005.7428.09c1)
  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
  Last input never, output 4d21h, 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
     1 packets input, 64 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
     1 packets output, 64 bytes, 0 underruns
     0 output errors, 0 collisions, 2 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 description command for an interface when the interface has been described as Connects to Marketing by using the description interface configuration command.

Switch# show interfaces gigabitethernet0/1 description
Interface Status         Protocol Description
Gi0/1    up             down     Connects to Marketing

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

Switch# show interfaces fastethernet0/1 pruning

Port      Vlans pruned for lack of request by neighbor
Fa0/1     4,196

Port      Vlan traffic requested of neighbor
Fa0/1     1,4

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

Switch# show interfaces stats
Vlan1
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor    3224706  223689126    3277307  280637322
             Route cache          0          0          0          0
                   Total    3224706  223689126    3277307  280637322
Interface Vlan5 is disabled

FastEthernet0/1
          Switching path    Pkts In   Chars In   Pkts Out  Chars Out
               Processor    3286423  231672787     179501   17431060
             Route cache          0          0          0          0
                   Total    3286423  231672787     179501   17431060

This is an example of 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
Fa0/1                      notconnect   1            auto   auto 10/100BaseTX
Fa0/2                      notconnect   1            auto   auto 10/100BaseTX
Fa0/3                      disabled     100          auto   auto 10/100BaseTX
Fa0/4                      connected    trunk      a-full  a-100 10/100BaseTX
Fa0/5                      notconnect   1            auto   auto 10/100BaseTX
Fa0/6                      connected    trunk      a-full  a-100 10/100BaseTX

<output truncated>

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

switch# show interfaces fastethernet0/1 status err-disabled 

Port    Name               Status       Reason
Fa0/1                      err-disabled psecure-violation

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

Switch# show interfaces etherchannel
----
FastEthernet0/1:
Port state    = Up Mstr In-Bndl 
Channel group = 1           Mode = On/FEC     Gcchange = 0
Port-channel  = Po1         GC   = 0x00010001    Pseudo port-channel = Po1
Port index    = 0           Load = 0x00

Age of the port in the current state:00d:00h:06m:54s
----
Port-channel1:
Age of the Port-channel   = 09d:22h:45m:14s
Logical slot/port   = 1/0           Number of ports = 1
GC                  = 0x00010001      HotStandBy port = null
Port state          = Port-channel Ag-Inuse 

Ports in the Port-channel:

Index   Load   Port    EC state
------+------+------+------------
  0     00     Fa0/1    on         

Time since last port bundled:   00d:00h:06m:54s    Fa0/1

This is an example of output from the show interfaces flowcontrol command. Table 2-22 lists the fields in this display.

Switch# show interfaces flowcontrol
Port    Send FlowControl  Receive FlowControl  RxPause TxPause
        admin    oper     admin    oper
-----   -------- -------- -------- --------    ------- -------
Fa0/1   Unsupp.  Unsupp.  off      off         0       0
Fa0/2   Unsupp.  Unsupp.  off      off         0       0
<output truncated>
Gi0/1 desired  off      off      off         0       0

Table 2-22 show interfaces flowcontrol Field Descriptions 

Field
Description

Port

Displays the port name.

Send FlowControl

Admin

Displays the administrative (configured) setting for the flow control send mode.

Oper

Displays the operational (running) setting for the flow control send mode.

Receive FlowControl

Admin

Displays the administrative (configured) setting for the flow control receive mode.

Oper

Displays the operational (running) setting for the flow control receive mode.

RxPause

Displays the number of pause frames received.

TxPause

Displays the number of pause frames sent.

On

Flow control is enabled.

Off

Flow control is disabled.

Desired

Flow control is enabled if the other end supports it.

Unsupp.

Flow control is not supported.


This is an example of output from the show interfaces switchport command for a single interface. Table 2-23 describes the fields in the output.

Switch# show interfaces gigabitethernet0/1 switchport
Name: Gi0/1
Switchport:Enabled
Administrative Mode:dynamic desirable
Operational Mode:static access
Administrative Trunking Encapsulation:negotiate
Negotiation of Trunking:On
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Voice VLAN:none
Administrative private-vlan host-association:none
Administrative private-vlan mapping:none
Operational private-vlan:none
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001
Capture Mode: Disabled
Capture VLANs Allowed:ALL

Protected:true
Unknown unicast blocked:disabled
Unknown multicast blocked:disabled

Voice VLAN:none (Inactive)
Appliance trust:none

Table 2-23 show interfaces switchport Field Descriptions 

Field
Description

Name

Displays the port name.

Switchport

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

Administrative Mode

Operational Mode

Displays the administrative and operational mode.

Administrative 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

Note 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.

Administrative private-vlan host-association >
Administrative private-vlan mapping
Operational private-vlan

Displays the administrative and operational status of the private VLAN and displays the private-VLAN mapping.

Note Private VLANs are not supported on the switch.

Capture Mode

Captured VLANs Allowed

Displays the capture mode and the number of captured VLANs allowed.

Note Because the switch does not support the capture feature, the values for these fields do not change.

Protected

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

Voice VLAN

Displays the VLAN ID on which voice VLAN is enabled.

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 trunk command:

Switch# show interfaces trunk

Port      Mode         Encapsulation  Status        Native vlan
Fa0/4     on           802.1q         trunking      1
Fa0/6     on           802.1q         trunking      1

Port      Vlans allowed on trunk
Fa0/4     1-4094
Fa0/6     1-4094

Port      Vlans allowed and active in management domain
Fa0/4     1-2,51-52
Fa0/6     1-2,51-52

Port      Vlans in spanning tree forwarding state and not pruned
Fa0/4     1
Fa0/6     1-2,51-52

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

Switch# show interfaces fastethernet0/1 trunk

Port      Mode         Encapsulation  Status        Native vlan
Fa0/1     desirable    802.1q         trunking      1

Port      Vlans allowed on trunk
Fa0/1     1-4094

Port      Vlans allowed and active in management domain
Fa0/1     1,4,196,306

Port      Vlans in spanning tree forwarding state and not pruned
Fa0/1     1,306

This is an example of output from the show interfaces transceiver properties command. If you do not specify an interface, the output of the command shows the status on all switch ports:

Switch# show interfaces transceiver properties
Name : Fa0/1
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A 
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A 

Name : Fa0/2
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A 
Operational Speed: 10
Operational Duplex: full
Operational Auto-MDIX: N/A 

Name : Fa0/3
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A 
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A 

<output truncated> 

This is an example of output from the show interfaces module number transceiver properties command for a specific interface:

Switch# show interfaces fastethernet0/1 transceiver properties
Name : Fa0/1
Administrative Speed: auto
Administrative Duplex: auto
Administrative Auto-MDIX: N/A 
Operational Speed: 100
Operational Duplex: full
Operational Auto-MDIX: N/A 

This is an example of output from the show interfaces command for an LRE port:

Switch# show interfaces longreachethernet0/5
LongReachEthernet0/5 is up, line protocol is up 
  Hardware is Ethernet over LRE, address is 0006.2871.5902 (bia 0006.2871.5902)
  MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Half-duplex, Auto Speed (10), 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:21, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     8272 packets input, 852898 bytes, 0 no buffer
     Received 1182 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 1182 multicast
     0 input packets with dribble condition detected
     61899 packets output, 17981033 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

This is an example of output from the show interfaces command for all interfaces on a CPE device:

Switch# show interfaces longreachethernet0/2 cpe

Port      Status      Speed   Duplex
----   ------------   -----   ------
  1    notconnected    auto       NA
  2    notconnected    auto       NA
  3    notconnected    auto       NA
  4    notconnected    auto       NA
  5    connected        100     half
Switch#

This is an example of output from the show interfaces command for a port on a CPE device:

Switch# show interfaces longreachethernet0/2 cpe port 5

Port      Status      Speed   Duplex
----   ------------   -----   ------
  5    connected        100     half
Switch#

This is an example of output from the show interfaces media command on an interface:

Switch# show interfaces gigabitethernet0/1 media

Port    Media-configured   Active      Attached
Gi0/1   auto-select        rj45        1000BaseSX-10/100/1000BaseTX
Switch#

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

Switch# show interfaces media

Port    Media-configured   Active      Attached
Gi0/1   auto-select        rj45        1000BaseSX-10/100/1000BaseTX
Gi0/2   prefer-sfp         sfp         1000BaseSX-10/100/1000BaseTX

Related Commands

Command
Description

switchport access

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

switchport protected

Isolates Layer 2 unicast, multicast, and broadcast traffic 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 a specific interface or for all interfaces.

show interfaces [interface-id | vlan vlan-id] counters [errors | etherchannel | trunk] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) ID of the physical interface, including type and slot and port number.

vlan vlan-id

(Optional) VLAN number of the management VLAN. The range is 1 to 4094.

errors

(Optional) Display error counters.

etherchannel

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

trunk

(Optional) Display trunk counters.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.

12.2(22)EA2

The broadcast, multicast, and unicast keywords were removed.


Usage Guidelines

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

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show interfaces counters command. It displays all the counters for the switch. Table 2-24 describes the fields in the output.

Switch# show interfaces counters
Port            InOctets   InUcastPkts   InMcastPkts   InBcastPkts
Gi0/1         23324617     10376         185709        126020
Gi0/2                  0             0             0             0

Port           OutOctets  OutUcastPkts  OutMcastPkts  OutBcastPkts
Gi0/1          4990607     28079         21122            10
Gi0/2            1621568         25337             0             0

Table 2-24 show interfaces counters Field Descriptions 

Field
Description

InOctets

Displays the number of bytes received on an interface.

InUcastPkts

Displays the number of unicast packets received on an interface.

InMcastPkts

Displays the number of multicast packets received on an interface.

InBcastPkts

Displays the number of broadcast packets received on the interface.

OutOctets

Displays the number of bytes sent on an interface.

OutUcastPkts

Displays the number of unicast packets sent on an interface.

OutMcastPkts

Displays the number of multicast packets sent on an interface.

OutBcastPkts

Displays the number of broadcast packets sent on an interface.


This is an example of output from the show interfaces counters errors command. It displays the interface error counters for all interfaces. Table 2-25 describes the fields in the output.

Switch# show interfaces counters errors

Port        Align-Err    FCS-Err   Xmit-Err    Rcv-Err UnderSize
Gi0/1         0          0          0          0         0
Gi0/2               0          0          0          0         0

Port      Single-Col Multi-Col  Late-Col Excess-Col Carri-Sen     Runts    Giants
Gi0/1        0         0         0          0         0           0         0
Gi0/2         0        0       0        0       0       0       0

Table 2-25 show interfaces counters errors Field Descriptions 

Field
Description

Align-Err

Displays the total number of frames that are received on an interface and have alignment errors.

FCS-Err

Displays the total number of frames that are received on an interface, have a valid length (in bytes), but do not have the correct FCS1 values.

Xmit-Err

Displays the total number of frames that have errors during transmission.

Rcv-Err

Displays the total number of frames that are received on an interface and have errors.

Undersize

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

Single-col

Displays the total number of frames that are successfully sent on an interface after one collision occurs.

Multi-col

Displays the total number of frames that are successfully sent on an interface after more than one collision occurs.

Late-col

After a frame is sent, displays the number of times that a collision is detected on an interface after 512 bit times.

Excess-col

Display the number of frames that could not be sent on an interface because more than 16 collisions occurs.

Carri-Sen

Displays the number of occurrences in which the interface detects a false carrier when frames are not sent or received.

Runts

Displays the number of frames received on an interface that are smaller than 64 bytes and have an invalid FCS value.

Giants

Displays the number of frames that are larger than the maximum allowed frame size and have a valid FCS value.

1 FCS = frame check sequence


This is an example of output from the show interfaces counters trunk command. It displays the trunk counters for all interfaces. Table 2-26 describes the fields in the output.

Switch# show interfaces counters trunk

Port        TrunkFramesTx  TrunkFramesRx  WrongEncap
Gi0/1         0              0              0
Gi0/2                   0              0           0 

Table 2-26 show interfaces counters trunk Field Descriptions 

Field
Description

TrunkFrameTx

Displays the number of frames sent on a trunk interface.

TrunkFrameRx

Displays the number of frames received on a trunk interface.

WrongEncap

Displays the number of frames that are received on an interface and have the incorrect encapsulation type.


Related Commands

Command
Description

show interfaces

Displays 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] [ | {begin | exclude | include} expression]

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.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(22)EA5

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.


Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output are not displayed, but the lines that contain Output are displayed.

Examples

This is example output from the show inventory command:

Switch> show inventory
NAME: "sw-2-9-calg", DESCR: "Cisco Catalyst c2950 switch with 24 10/100 BaseTX ports and 2 
GBIC (Gigabit Interface Converter) slots"
PID: WS-C2950G-24-EI   , VID: A0 , SN: FHK0603Y088 

show ip access-lists

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

show ip access-lists [name | number] [ | {begin | exclude | include} expression]

Syntax Description

name

(Optional) ACL name.

number

(Optional) ACL number. The range is 1 to 199 and 1300 to 2699.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show ip access-lists
Standard IP access list testingacl
    permit 10.10.10.2
Standard IP access list wizard_1-1-1-2
    permit 1.1.1.2
Extended IP access list 103
    permit tcp any any eq www
Extended IP access list CMP-NAT-ACL
    Dynamic Cluster-HSRP deny   ip any any
    Dynamic Cluster-NAT permit ip any any
      permit ip host 10.245.155.128 any
      permit ip host 10.245.137.0 any
      permit ip host 10.146.106.192 any
      permit ip host 10.216.25.128 any
      permit ip host 10.228.215.0 any
      permit ip host 10.221.111.64 any
      permit ip host 10.123.222.192 any
      permit ip host 10.169.110.128 any
      permit ip host 10.186.122.64 any

This is an example of output from the show ip access-lists 103 command:

Switch# show ip access-lists 103
Extended IP access list 103
    permit tcp any any eq www

Related Commands

Command
Description

access-list (IP extended)

Configures an extended IP ACL on the switch.

access-list (IP standard)

Configures a standard IP ACL on the switch.

ip access-list

Configures an IP ACL on the switch.

show access-lists

Displays ACLs configured on a switch.


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

12.1(19)EA1

This command was introduced


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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
Interface                    Trusted     Rate limit (pps)
------------------------     -------     ----------------
FastEthernet0/5              yes         unlimited
FastEthernet0/7              yes         unlimited
FastEthernet0/3              no          5000     
FastEthernet0/5              yes         unlimited
FastEthernet0/7              yes         unlimited
FastEthernet0/5              yes         unlimited
FastEthernet0/7              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 table and configuration information for all interfaces on a switch.

show ip dhcp snooping binding [ip-address] [mac-address] [dynamic] [interface interface-id] [static] [vlan vlan-id] | {begin | exclude | include} expression]

Syntax Description

ip-address

(Optional) Specify the binding entry IP address.

mac-address

(Optional) Specify the binding entry MAC address.

dynamic

(Optional) Specify the dynamic binding entry.

interface interface-id

(Optional) Specify the binding input interface.

static

(Optional) Specify the static binding entry.

vlan vlan-id

(Optional) Specify the binding entry VLAN.

| begin

Display begins with the line that matches the expression.

| exclude

Display excludes lines that match the expression.

| include

Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(19)EA1

This command was introduced


Usage Guidelines

The show ip dhcp snooping binding command output shows the dynamically configured bindings.

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

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        286         dynamic  41    FastEthernet0/3
00:D0:B7:1B:35:DE   41.0.0.52        237         dynamic  41    FastEthernet0/3
00:00:00:00:00:01   40.0.0.46        286         dynamic  40    FastEthernet0/8
00:00:00:00:00:03   42.0.0.33        286         dynamic  42    FastEthernet0/8
00:00:00:00:00:02   41.0.0.53        286         dynamic  41    FastEthernet0/8

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

Switch> show ip dhcp snooping binding 41.0.0.51
MacAddress          IpAddress        Lease(sec)  Type     VLAN  Interface
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        285         dynamic  41    FastEthernet0/3

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

Switch> show ip dhcp snooping binding 0030.94c2.ef35
MacAddress          IpAddress        Lease(sec)  Type     VLAN  Interface
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        279         dynamic  41    FastEthernet0/3

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

Switch> show ip dhcp snooping binding dynamic
MacAddress          IpAddress        Lease(sec)  Type     VLAN  Interface
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        286         dynamic  41    FastEthernet0/3
00:D0:B7:1B:35:DE   41.0.0.52        296         dynamic  41    FastEthernet0/3
00:00:00:00:00:01   40.0.0.46        46          dynamic  40    FastEthernet0/8
00:00:00:00:00:03   42.0.0.33        46          dynamic  42    FastEthernet0/8
00:00:00:00:00:02   41.0.0.53        46          dynamic  41    FastEthernet0/8

This example shows how to display the DHCP snooping binding entries on an interface:

Switch> show ip dhcp snooping binding interface fastethernet0/3
MacAddress          IpAddress        Lease(sec)  Type     VLAN  Interface
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        290         dynamic  41    FastEthernet0/3
00:D0:B7:1B:35:DE   41.0.0.52        270         dynamic  41    FastEthernet0/3

This example shows how to display the DHCP snooping binding entries on VLAN 41:

Switch> show ip dhcp snooping binding vlan 41
MacAddress          IpAddress        Lease(sec)  Type     VLAN  Interface
------------------  ---------------  ----------  -------  ----  --------------------
00:30:94:C2:EF:35   41.0.0.51        274         dynamic  41    FastEthernet0/3
00:D0:B7:1B:35:DE   41.0.0.52        165         dynamic  41    FastEthernet0/3
00:00:00:00:00:02   41.0.0.53        65          dynamic  41    FastEthernet0/8

Table 2-27 describes the fields in the show ip dhcp snooping binding command output.

Table 2-27 show ip dhcp snooping binding Command Output 

Field
Description

MAC Address

Client hardware MAC address

IP Address

Client IP address assigned from the DHCP server

Lease (seconds)

IP address lease time

Type

Binding type

VLAN

VLAN number of the client interface

Interface

Interface that connects to the DHCP client host


Related Commands

Command
Description

show ip dhcp snooping

Displays the DHCP snooping configuration.


show ip igmp profile

Use the show ip igmp profile privileged EXEC command to view all configured Internet Group Management Protocol (IGMP) profiles or a specified IGMP profile.

show ip igmp profile [profile number] [ | {begin | exclude | include} expression]

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 appear.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(9)EA1

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

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. Use the mrouter keyword to display the dynamically learned and manually configured multicast router ports.

show ip igmp snooping [group | mrouter | querier] [vlan vlan-id] [ | {begin | exclude | include} expression]

Syntax Description

group

(Optional) Display information about the IGMP multicast groups, the compatibility mode, and the ports that are associated with each group.

mrouter

(Optional) Display the IGMP snooping dynamically learned and manually configured multicast router ports.

querier

(Optional) Display information about the IGMP version that an interface supports.

vlan vlan-id

(Optional) Keyword and variable to specify a VLAN. The range is 1 to 4094. This keyword is available only in privileged EXEC mode.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(19)EA1

The group and querier keywords were added.


Usage Guidelines

Use this command to display snooping characteristics for the switch or for a specific VLAN.

You can also use the show mac address-table multicast privileged EXEC command to display entries in the MAC address table for a VLAN that has IGMP snooping enabled.

When multicast VLAN registration (MVR) is enabled, use the show ip igmp snooping mrouter command to display the IGMP snooping dynamically learned and manually configured multicast router ports.

Use the group keyword to display the multicast groups, the compatibility mode, and the ports that are associated with each group.

Use the show ip igmp snooping querier command to display the IGMP version and IP address of a detected device that sends IGMP query messages, also called a querier. 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 command output also shows the VLAN and interface on which the querier was detected. If the querier is a multicast router, the output shows the Port field as Router.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

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          :100
<output truncated>

This is an example of output from the show ip igmp snooping vlan 1 command:

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 mrouter vlan 1 command:


Note In this example, Fa0/3 is a dynamically learned router port, and Fa0/2 is a configured static router port.


Switch# show ip igmp snooping mrouter vlan 1
Vlan    ports
----    -----
   1    Fa0/2(static), Fa0/3(dynamic) 

This is an example of output from the show ip igmp snooping group vlan 1 command:

Switch# show ip igmp snooping group vlan 1
Vlan      Group          Version     Port List
---------------------------------------------------------
1         229.2.3.4      v3          fa0/1 fa0/3
1         224.1.1.1      v2          fa0/8

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                  fa0/1
2         172.20.40.20   v2                  Router

Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping.

ip igmp snooping report-suppression

Enables IGMP report suppression.

ip igmp snooping source-only-learning

Enables IP multicast-source-only learning on the switch.

ip igmp snooping source-only-learning age-timer

Enables and configures the aging time of the forwarding-table entries that the switch learns by using the source-only learning method.

ip igmp snooping vlan vlan-id

Enables IGMP snooping on the VLAN interface.

ip igmp snooping vlan immediate-leave

Configures IGMP Immediate-Leave processing.

ip igmp snooping vlan mrouter

Configures a Layer 2 port as a multicast router port.

show mac address-table multicast

Displays the Layer 2 multicast entries for a VLAN.


show ip igmp snooping querier detail

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

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(22)EA3

This command was introduced.


Usage Guidelines

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 only displays the IP address of the most recent device detected by the switch querier.

The show ip igmp snooping querier command detail displays the IP address of the most recent device detected by the switch querier along with 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

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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 and configures IGMP snooping on the switch or on a VLAN.

show ip igmp snooping

Displays IGMP snooping multicast router ports for the switch or for the specified multicast VLAN.

show ip igmp snooping

Displays IGMP snooping multicast information for the switch or for the specified parameter.


show lacp

Use the show lacp user EXEC command to display Link Aggregation Control Protocol (LACP) channel-group information.

show lacp {channel-group-number {counters | internal | neighbor} | {counters | internal | neighbor | sys-id}} [ | {begin | exclude | include} expression]

Syntax Description

channel-group-number

(Optional) Number of the channel group. The range is 1 to 6.

counters

Display traffic information.

internal

Display internal information.

neighbor

Display neighbor information.

sys-id

Display the system identifier that is being used by LACP. The system identifier is made up of the LACP system priority and a MAC address.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(12c)EA1

This command was introduced.


Usage Guidelines

You can enter any show lacp command to display the active port-channel information. To display the nonactive information, enter the show lacp command with a group number.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show lacp counters command:

Switch> show lacp counters
LACPDUs         Marker      Marker Response    LACPDUs
Port       Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err
---------------------------------------------------------------------
Channel group:1
Fa0/5      19     10       0      0        0      0         0     
Fa0/6      14     6        0      0        0      0         0     
Fa0/7      8      7        0      0        0      0         0 

This is an example of output from the show lacp 1 internal command:

Switch> show lacp internal 
Flags: S - Device is sending Slow LACPDUs F - Device is sending Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode     
 
Channel group 1
                            LACP port     Admin     Oper    Port     Port
Port      Flags   State     Priority      Key       Key     Number   State
Fa0/5     SP      indep     32768         0x1       0x1     0x4      0x7C  
Fa0/6     SP      indep     32768         0x1       0x1     0x5      0x7C  
Fa0/7     SP      down      32768         0x1       0x1     0x6      0xC 

This is an example of output from the show lacp neighbor command:

Switch> show lacp neighbor

Flags: S - Device is sending Slow LACPDUs F - Device is sending Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode     
 
Channel group 1 neighbors
 
Partner's information:
 
          Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Fa0/5     00000,0000.0000.0000  0x0             85947s        SP
 
          LACP Partner         Partner         Partner
          Port Priority        Oper Key        Port State
          0                    0x0             0x0 

Partner's information:
 
          Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Fa0/6     00000,0000.0000.0000  0x0             86056s        SP
 
          LACP Partner         Partner         Partner
          Port Priority        Oper Key        Port State
          0                    0x0             0x0 
 
Partner's information:
 
          Partner               Partner                     Partner
Port      System ID             Port Number     Age         Flags
Fa0/7     00010,0008.a343.b580  0x6             86032s        SA
 
          LACP Partner         Partner         Partner
          Port Priority        Oper Key        Port State
          32768                0x1             0x35

This is an example of output from the show lacp sys-id command:

Switch> show lacp sys-id 
32765,0002.4b29.3a00

Related Commands

Command
Description

clear lacp

Clears LACP channel-group information.


show lre upgrade

show lre upgrade {binaries | status | version} [ | {begin | exclude | include} expression]

This command is available only on Catalyst 2950 LRE switches.

Syntax Description

binaries

Display the LRE binaries present on the system flash memory.

status

Display the upgrade status on all ports in the switch.

version

Display the version of binaries on local and remote ends of an LRE link.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

The device family. A device family could be an LRE switch or a customer premises equipment (CPE) device.

The function of the firmware, such as an upgrade for an application, the bootloader, or for the LRE chipset.

The firmware version.

Files marked with an exclamation point (!) are version description files. A version description file is only for informational purposes and is not a candidate for upgrade. Version description files are used to determine whether or not a CPE device on an LRE link is running a supported LRE binary version.

None—An upgrade is not in progress.

Pending—An upgrade is initialized, but transfer has not begun.

Active—Data transfer is in progress.

Cmplt—An upgrade is complete.

The device family. A device family could be an LRE switch or a CPE device.

The function of the firmware, such as an upgrade for an application, for the bootloader, or for the LRE or CPE chipsets.

The firmware version.

During data transfer but before the upgrade completes, the status also shows the time in hours and minutes that the upgrade has been in progress and the number of attempts that were made.

The device family.

The function of the firmware, such as an upgrade for an application, for the bootloader, or for the LRE chipsets of a CPE device.

The firmware version.

Examples

This example shows output from the show lre upgrade binaries command:

Switch# show lre upgrade binaries
Path containing LRE binaries is flash:/c2950lre-i6l2q4-mz.121-0.18.YJ/lre-bin;
	zflash:/c2950lre-i6l2q4-mz.121-0.18.YJ/lre-bin

LRE Binary: CISCO585-LRE_vdslsngl_51.00.00,     
	Flash file name: CISCO585-LRE_vd	slsngl_51.00.00.bin

LRE Binary: CISCO585-LRE_MC8051boot_01.03.00,
	Flash file name: CISCO585-LRE_MC	8051boot_01.03.00.bin!

LRE Binary: CISCO585-LRE_MC8051boot_01.02.00,
	Flash file name: CISCO585-LRE_MC	8051boot_01.02.00.bin!

LRE Binary: CISCO585-LRE_MC8051appl_01.03.00,
	Flash file name: CISCO585-LRE_MC	8051appl_01.03.00.bin!

LRE Binary: CISCO585-LRE_MC8051appl_01.02.00,
	Flash file name: CISCO585-LRE_MC	8051appl_01.02.00.bin!

LRE Binary: CISCO575-LRE_vdslsngl_50.00.00,
	Flash file name: CISCO575-LRE_vd	slsngl_50.00.00.bin

LRE Binary: CISCO2950-LRE_vdsloctl_02.60.00,
	Flash file name: CISCO2950-LRE_v	dsloctl_02.60.00.bin

LRE Binary: CISCO2950-LRE_vdsloctl_02.51.00,
	Flash file name: CISCO2950-LRE_v	dsloctl_02.51.00.bin

LRE Binary: CISCO2950-LRE_vdsloctl_02.50.00, 
	Flash file name: CISCO2950-LRE_v	dsloctl_02.50.00.bin

This example shows the status of an upgrade after it starts, but before the data transfer begins:

Switch# show lre upgrade status
Lo0/1:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Pending
Lo0/2:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Pending
Lo0/3:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Pending
Lo0/4:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Pending

<output truncated>

This example shows the status of an upgrade after data transfer is in progress:

Switch# show lre upgrade status
Lo0/1:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Active
   10 HHMM:0000, Attempt:001
Lo0/2:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Active
   09 HHMM:0000, Attempt:001
Lo0/3:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Active
   22 HHMM:0000, Attempt:001
Lo0/4:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00

<output truncated>

This example shows output from the show lre upgrade version command:

Switch# show lre upgrade version

Lo0/1:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00
Lo0/2:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00
Lo0/3:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00
Lo0/4:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00
Lo0/5:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00

<output truncated>

Related Commands

Command
Description

show lre upgrade

Displays the upgrade status on all ports in the switch or the versions of binaries on local and remote ends on all ports.


show mac access-group

Use the show mac access-group user EXEC command to display the MAC access control lists (ACLs) configured for an interface or a switch.

show mac access-group [interface interface-id] [ | {begin | exclude | include} expression]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

interface interface-id

(Optional) Display the ACLs configured on a specific interface (only available in privileged EXEC mode).

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Use the show mac access-group command without keywords to display MAC ACLs for all interfaces.

Use this command with the interface keyword to display ACLs for a specific interface.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show mac access-group
Interface FastEthernet0/1:
   Inbound access-list is not set
Interface FastEthernet0/2:
   Inbound access-list is not set
Interface FastEthernet0/3:
   Inbound access-list is not set
Interface FastEthernet0/4:
   Inbound access-list is not set
...
Interface FastEthernet0/47:
   Inbound access-list is not set
Interface FastEthernet0/48:
   Inbound access-list is not set
Interface GigabitEthernet0/1:
   Inbound access-list is not set
Interface GigabitEthernet0/2:
   Inbound access-list is 101This is an example of output from the show mac access-group 
interface gigabitethernet 0/2 command:
Switch# show mac access-group interface gigabitethernet0/2
Interface GigabitEthernet0/2:
   Inbound access-list is 101

Related Commands

Command
Description

mac access-group

Applies a MAC ACL to an interface.


show mac address-table

Use the show mac address-table user EXEC command to display the MAC address table.

show mac address-table [aging-time | count | dynamic | static] [address hw-addr]
[interface interface-id] [vlan vlan-id] [ | {begin | exclude | include} expression]


Note Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table command replaces the show mac-address-table command (with the hyphen).


Syntax Description

aging-time

(Optional) Display aging time for dynamic addresses for all VLANs.

count

(Optional) Display the count for different kinds of MAC addresses (only available in privileged EXEC mode).

dynamic

(Optional) Display only the dynamic addresses.

static

(Optional) Display only the static addresses.

address hw-addr

(Optional) Display information for a specific address (only available in privileged EXEC mode).

interface interface-id

(Optional) Display addresses for a specific interface.

vlan vlan-id

(Optional) Display addresses for a specific VLAN. The range is 1 to 4094.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

The address and count keywords are available only in privileged EXEC mode.

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(6)EA2

The show mac-address-table secure command was replaced by the show port-security command. The self keyword is not supported in this release or later.

12.1(11)EA1

The show mac-address-table command was replaced by the show mac address-table command.


Usage Guidelines

This command displays the MAC address table for the switch. Specific views can be defined by using the optional keywords and values. If more than one optional keyword is used, all of the conditions must be true in order for that entry to appear.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mac address-table command:

Switch> show mac address-table

Dynamic Addresses Count:               9
Secure Addresses (User-defined) Count: 0
Static Addresses (User-defined) Count: 0
System Self Addresses Count:           41
Total MAC addresses:                   50
Non-static Address Table:
Destination Address  Address Type  VLAN  Destination Port
-------------------  ------------  ----  --------------------
0010.0de0.e289       Dynamic          1  FastEthernet0/1
0010.7b00.1540       Dynamic          2  FastEthernet0/5
0010.7b00.1545       Dynamic          2  FastEthernet0/5
0060.5cf4.0076       Dynamic          1  FastEthernet0/1
0060.5cf4.0077       Dynamic          1  FastEthernet0/1
0060.5cf4.1315       Dynamic          1  FastEthernet0/1
0060.70cb.f301       Dynamic          1  FastEthernet0/1
00e0.1e42.9978       Dynamic          1  FastEthernet0/1
00e0.1e9f.3900       Dynamic          1  FastEthernet0/1

This is an example of output from the show mac address-table static command:

Switch> show mac address-table static 
vlan   mac address     type     ports   
-----+---------------+--------+---------
  All 0180.c200.0003  STATIC    CPU
  All 0180.c200.0004  STATIC    CPU
  All 0180.c200.0005  STATIC    CPU
   4  0001.0002.0004  STATIC    Drop
   6  0001.0002.0007  STATIC    Drop

This is an example of output from the show mac address-table static interface fastethernet0/2
vlan 1
command:

Switch> show mac address-table static interface fastethernet0/2 vlan 1
vlan   mac address     type     ports   
-----+---------------+--------+---------
   1  abcd.2345.0099  STATIC    Fa0/2
   1  abcd.0070.0070  STATIC    Fa0/2
   1  abcd.2345.0099  STATIC    Fa0/2
   1  abcd.2345.0099  STATIC    Fa0/2
   1  00d0.d333.7f34  STATIC    Fa0/2
   1  abcd.2345.0099  STATIC    Fa0/2
   1  0005.6667.0007  STATIC    Fa0/2

This is an example of output from the show mac address-table count vlan 1 command:

Switch# show mac address-table count vlan 1
MAC Entries for Vlan 1 :
Dynamic Address Count: 1
Static Address (User-defined) Count: 41
Total MAC Addresses In Use:42
Remaining MAC addresses: 8150

This is an example of output from the show mac address-table aging-time command:

Switch> show mac address-table aging-time
Vlan Aging Time
---- ----------
1    450
2    300
3    600
300  450
301  450

This is an example of output from the show mac address-table aging-time vlan 1 command:

Switch> show mac address-table aging-time vlan 1
Vlan Aging Time
---- ----------
1    450

Related Commands

Command
Description

clear mac address-table dynamic

Deletes from the MAC address table a specific dynamic address, all dynamic addresses on a particular interface, or all dynamic addresses on a particular VLAN.


show mac address-table multicast

Use the show mac address-table multicast user EXEC command to display the Layer 2 multicast entries for the switch or for the VLAN.

show mac address-table multicast [vlan vlan-id] [count] [igmp-snooping | user] [ | {begin | exclude | include} expression]


Note The show mac address-table multicast command only shows non-IP multicast addresses. Use the show ip igmp snooping multicast user EXEC command to display IP multicast addresses.



Note Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table multicast command replaces the show mac-address-table multicast command (with the hyphen).


Syntax Description

vlan vlan-id

(Optional) Specify a VLAN. The range is 1 to 4094. (This keyword is only available in privileged EXEC mode.)

count

(Optional) Display total number of entries for the specified criteria instead of the actual entries (only available in privileged EXEC mode).

igmp-snooping

(Optional) Display only entries learned through Internet Group Management Protocol (IGMP) snooping (only available in privileged EXEC mode).

user

(Optional) Display only the user-configured multicast entries (only available in privileged EXEC mode).

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(11)EA1

The show mac-address-table multicast command was replaced by the show mac address-table multicast command.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mac address-table multicast vlan 1 command:

Switch# show mac address-table multicast vlan 1

Vlan    Mac Address     Type    Ports
----    -----------     ----    -----
   1    0100.5e00.0128  IGMP    Fa0/1
   1    0100.5e01.1111  USER    Fa0/3, Fa0/4, Fa0/5, Fa0/6

This is an example of output from the show mac address-table multicast count command:

Switch# show mac address-table multicast count
Multicast Mac Entries for all vlans: 10

This is an example of output from the show mac address-table multicast vlan 1 count command:

Switch# show mac address-table multicast vlan 1 count
Multicast Mac Entries for vlan 1: 2

This is an example of output from the show mac address-table multicast vlan 1 user command:

Switch# show mac address-table multicast vlan 1 user
vlan   mac address      type        ports
-----+----------------+-------+---------------------
1     0100.5e02.0203    user     Fa0/1,Fa0/2,Fa0/4

This is an example of output from the show mac address-table multicast vlan 1 igmp-snooping count command:

Switch# show mac address-table multicast vlan 1 igmp-snooping count
Number of igmp-snooping programmed entries : 1

show mac address-table notification

Use the show mac address-table notification user EXEC command to display parameters for the MAC notification feature.

show mac address-table notification [interface interface-id] [ | {begin | exclude | include} expression]


Note Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table notification command replaces the show mac-address-table notification command (with the hyphen).


Syntax Description

interface interface-id

(Optional) Specify an interface.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.

12.1(11)EA1

The show mac-address-table notification command was replaced by the show mac address-table notification command.


Usage Guidelines

Use the show mac address-table notification command without keywords to display parameters for all interfaces. Use this command with the interface keyword to display parameters for a specific interface.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mac address-table notification command:

Switch> show mac address-table notification
MAC Notification Feature is Disabled on the switch

Related Commands

Command
Description

clear mac address-table notification

Clears the MAC address notification global counters.

mac address-table notification

Enables the MAC notification feature.

snmp trap mac-notification

Enables MAC-notification traps on a port.


show mls masks

Use the show mls masks user EXEC command to display the details of the access control parameters (ACPs) used for quality of service (QoS) and security access control lists (ACLs).

show mls masks [qos | security] [ | {begin | exclude | include} expression]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

qos

(Optional) Display ACPs used for QoS ACLs.

security

(Optional) Display ACPs used for security ACLs.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.



Note ACPs are called masks in the command-line interface (CLI) commands and output.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Use the show mls masks command without keywords to display all ACPs configured on the switch.

Use this command with the qos keyword to display the ACPs used for QoS ACLs.

Use this command with the security keyword to display the ACPs used for security ACLs.


Note You can configure up to four ACPs (QoS and security) on a switch.


Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mls masks command:

Switch> show mls masks

Mask1
        Type : qos
        Fields : ip-sa(0.0.0.255), ip-da(host), dest-port, ip-dscp
        Policymap: pmap1
            Interfaces: Fa0/9, Gi0/1
        Policymap: pmap2
            Interfaces: Fa0/1, Fa0/5, Fa0/13
Mask2
        Type : security
        Fields : mac-sa (host), ethertype, ip-dscp
        Access-group: 3
            Interfaces: Fa0/2, Fa0/6
        Access-group: macag1
            Interfaces: Fa0/16

In this example, Mask 1 is a QoS ACP consisting an IP source address (with wildcard bits 0.0.0.255), an IP destination address, and Layer 4 destination port fields. This ACP is used by the QoS policy maps pmap1 and pmap2.

Mask 2 is a security ACP consisting of a MAC source address and ethertype fields. This ACP is used by the MAC security access groups 3 and macag1.

Related Commands

Command
Description

ip access-group

Applies an IP ACL to an interface.

mac access-group

Applies a named extended MAC ACL to an interface.

policy-map

Creates or modifies a policy map that can be attached to multiple interfaces, and enters policy-map configuration mode.


show mls qos interface

Use the show mls qos interface user EXEC command to display quality of service (QoS) information at the interface level.

show mls qos interface [interface-id] [policers] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) Display QoS information for the specified interface.

policers

(Optional) Display all the policers configured on the interface and their settings (available only when the switch is running the enhanced image [EI]).

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.



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


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Though visible in the command-line help string, the policers keyword is available only when your switch is running the EI.

Use the show mls qos interface command without keywords to display parameters for all interfaces.

Use the show mls qos interface interface-id command to display the parameters for a specific interface.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mls qos interface command when the Cisco IP phone is a trusted device:

Switch> show mls qos interface fastethernet0/1
FastEthernet0/1
trust state:trust cos
trust mode:trust cos
COS override:dis
default COS:0
pass-through:none
trust device:cisco-phone

This is an example of output from the show mls qos interface command when pass-through mode is configured on an interface:

Switch> show mls qos interface fastethernet0/2
FastEthernet0/2
trust state:not trusted
trust mode:not trusted
COS override:dis
default COS:0
pass-through:dscp

This is an example of output from the show mls qos interface-id policers command:

Switch> show mls qos interface fastethernet0/1 policers
FastEthernet0/1
policymap=pmtimerin
type=Single rate=1000000, burst=4096
type=Single rate=2000000, burst=4096

Related Commands

Command
Description

mls qos cos

Defines the default class of service (CoS) value of a port or assigns the default CoS to all incoming packets on the port.

mls qos map

Defines the class of service (CoS)-to-Differentiated Services Code Point (DSCP) map and DSCP-to-CoS map.

mls qos trust

Configures the port trust state. Ingress traffic can be trusted and classification is performed by examining the CoS or DSCP value.


show mls qos maps

Use the show mls qos maps user EXEC command to display quality of service (QoS) mapping information. Maps are used to generate an internal Differentiated Services Code Point (DSCP) value, which represents the priority of the traffic.

show mls qos maps [cos-dscp | dscp-cos] [ | {begin | exclude | include} expression]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

cos-dscp

(Optional) Display class of service (CoS)-to-DSCP map.

dscp-cos

(Optional) Display DSCP-to-CoS map.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Use the show mls qos maps command without keywords to display all maps.

Use this command with the cos-dscp keyword to display the CoS-to-DSCP map.

Use this command with the dscp-cos keyword to display the DSCP-to-CoS map.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show mls qos maps cos-dscp command:

Switch> show mls qos maps cos-dscp

Cos-dscp map:
        cos:  0  1  2  3  4  5  6  7
     --------------------------------
       dscp:  8  8  8  8 24 32 56 56

This is an example of output from the show mls qos maps dscp-cos command:

Switch> show mls qos maps dscp-cos

Dscp-cos map:
       dscp:  0  8 10 16 18 24 26 32 34 40 46 48 56
     -----------------------------------------------
        cos:  0  1  1  1  2  2  3  3  4  4  5  6  7

This is an example of output from the show mls qos maps command:

Switch> show mls qos maps

Dscp-cos map:
       dscp:  0  8 10 16 18 24 26 32 34 40 46 48 56
     -----------------------------------------------
        cos:  0  1  1  2  2  3  7  4  4  5  5  7  7

   Cos-dscp map:
        cos:  0  1  2  3  4  5  6  7
     --------------------------------
       dscp:  0  8 16 24 32 40 48 56

Related Commands

Command
Description

mls qos map

Defines the CoS-to-DSCP map and DSCP-to-CoS map.


show monitor

Use the show monitor user EXEC command to display Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) session information.

show monitor [session {session_number | all | local | range | remote}] | {begin | exclude | include} expression]

Syntax Description

session session_number

(Optional) Specify the session number identified with this SPAN or RSPAN session.

all

Specify all sessions.

local

Specify local sessions.

range

Specify a range of sessions.

remote

Specify remote sessions.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA1

This command was introduced.

12.1(11)EA1

The all, local, and remote keywords were added.

12.1(13)EA1

The range keyword was added.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output for the show monitor privileged EXEC command for RSPAN source session 1:

Switch# show monitor session 1
Session 1
---------
Type: Remote Source Session
Source Ports:
    RX Only: 		 Fa0/3
    TX Only:       None
    Both:          None 
Source VLANs:
    RX Only:       None
    TX Only:       None
    Both:          None
Source RSPAN VLAN: None
Destination Ports: None
	Encapsulation: Native
Reflector Port: 	 Fa0/4
Filter VLANs:      None
Dest RSPAN VLAN: 	901

This is an example of output for the show monitor privileged EXEC command for SPAN source session 1:

Switch# show monitor session 1
Session 1
---------
Type: 					: Local Session
Source Ports 					:
    Both: 					: Fa0/6

Related Commands

Command
Description

monitor session

Enables SPAN and RSPAN monitoring on a port and configures a port as a source or destination port.


show mvr

Use the show mvr privileged EXEC command without keywords to display the Multicast VLAN Registration (MVR) global parameter values, including whether or not MVR is enabled, the MVR multicast VLAN, the maximum query response time, the number of multicast groups, and the MVR mode (dynamic or compatible).

show mvr [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show mvr
MVR Running: TRUE
MVR multicast vlan: 1
MVR Max Multicast Groups: 256
MVR Current multicast groups: 256
MVR Global query response time: 5 (tenths of sec)
MVR Mode: compatible 

In the previous example, the maximum number of multicast groups is 256. The MVR mode is either compatible (for interoperability with Catalyst 2900 XL and Catalyst 3500 XL switches) or dynamic (where operation is consistent with Internet Group Management Protocol [IGMP] snooping operation, and dynamic MVR membership on source ports is supported).

Related Commands

Command
Description

mvr

Enables and configures multicast VLAN registration on the switch.

mvr type

Configures an MVR port as a receiver or a source port.

show mvr interface

Displays the configured MVR interfaces, status of the specified interface, or all multicast groups to which the interface belongs.

show mvr members

Displays all ports that are members of an MVR multicast group.


show mvr interface

Use the show mvr interface privileged EXEC command without keywords to display the Multicast VLAN Registration (MVR) receiver and source ports. Use the command with keywords to display MVR parameters for a specific receiver port.

show mvr interface [interface-id [members [vlan vlan-id]] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) Display MVR type, status, and Immediate-Leave setting for the interface.

members

(Optional) Display all MVR groups to which the specified interface belongs.

vlan vlan-id

(Optional) Display the VLAN to which the receiver port belongs.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

If the entered port identification is a non-MVR port or a source port, the command returns an error message. For receiver ports, it displays the port type, per port status, and Immediate-Leave setting.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show mvr interface
Port    Type            Status          Immediate Leave
----    ----            -------         ---------------
Gi0/1 SOURCE          ACTIVE/UP       DISABLED
Gi0/2   RECEIVER        ACTIVE/DOWN     DISABLED

In the previous example, Status is defined as:

Active means the port is part of a VLAN.

Up/Down means that the port is forwarding/nonforwarding.

Inactive means that the port is not part of any VLAN.

This is an example of output from the show mvr interface gigabitethernet0/1 command:

Switch# show mvr interface gigabitethernet0/1
Type: RECEIVER Status: ACTIVE Immediate Leave: DISABLED 

This is an example of output from the show mvr interface fastethernet0/1 member command:

Switch# show mvr interface fastethernet0/1 member
239.255.0.0     DYNAMIC ACTIVE
239.255.0.1     DYNAMIC ACTIVE
239.255.0.2     DYNAMIC ACTIVE
239.255.0.3     DYNAMIC ACTIVE
239.255.0.4     DYNAMIC ACTIVE
239.255.0.5     DYNAMIC ACTIVE
239.255.0.6     DYNAMIC ACTIVE
239.255.0.7     DYNAMIC ACTIVE
239.255.0.8     DYNAMIC ACTIVE
239.255.0.9     DYNAMIC ACTIVE

Related Commands

Command
Description

mvr

Enables and configures multicast VLAN registration on the switch.

mvr type

Configures an MVR port as a receiver or a source port.

show mvr

Displays the global MVR configuration on the switch.

show mvr members

Displays all receiver ports that are members of an MVR multicast group.


show mvr members

Use the show mvr members privileged EXEC command to display all receiver and source ports that are currently members of an IP multicast group.

show mvr members [ip-address] [ | {begin | exclude | include} expression]

Syntax Description

ip-address

(Optional) The IP multicast address. If the address is entered, all receiver and source ports that are members of the multicast group appear. If no address is entered, all members of all Multicast VLAN Registration (MVR) groups are listed. If a group has no members, the group is listed as Inactive.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

The show mvr members command applies to receiver and source ports. For MVR compatible mode, all source ports are members of all multicast groups.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show mvr members
MVR Group IP    Status          Members
------------    ------          -------
239.255.0.1     ACTIVE          Gi0/1(d), Fa0/2(s)
239.255.0.2     INACTIVE        None
239.255.0.3     INACTIVE        None
239.255.0.4     INACTIVE        None
239.255.0.5     INACTIVE        None
239.255.0.6     INACTIVE        None
239.255.0.7     INACTIVE        None
239.255.0.8     INACTIVE        None
239.255.0.9     INACTIVE        None
239.255.0.10    INACTIVE        None

<output truncated>

239.255.0.255   INACTIVE        None
239.255.1.0     INACTIVE        None 

This is an example of output from the show mvr members 239.255.0.2 command. It shows how to view the members of the IP multicast group 239.255.0.2.

Switch# show mvr member 239.255.0.2
239.255.0.2     ACTIVE          Gi0/1(d), Fa0/2(d)

Related Commands

Command
Description

mvr

Enables and configures multicast VLAN registration on the switch.

mvr type

Configures an MVR port as a receiver or a source port.

show mvr

Displays the global MVR configuration on the switch.

show mvr interface

Displays the configured MVR interfaces, status of the specified interface, or all multicast groups to which the interface belongs.


show pagp

Use the show pagp user EXEC command to display Port Aggregation Protocol (PAgP) channel-group information.

show pagp [channel-group-number] {counters | internal | neighbor} [ | {begin | exclude | include} expression]

Syntax Description

channel-group-number

(Optional) Number of the channel group. The range is 1 to 6.

counters

Display traffic information.

internal

Display internal information.

neighbor

Display neighbor information.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

You can enter any show pagp command to display the active port channel information. To display the nonactive information, enter the show pagp command with a group number.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show pagp 1 counters command:

Switch> show pagp 1 counters
           Information        Flush
Port       Sent   Recv     Sent   Recv
--------------------------------------
Channel group: 1
  Fa0/1    45     42       0      0 
  Fa0/2    45     41       0      0 

This is an example of output from the show pagp 1 internal command:

Switch> show pagp 1 internal
Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.
Timers: H - Hello timer is running.        Q - Quit timer is running.
        S - Switching timer is running.    I - Interface timer is running.

Channel group 1
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa0/1     SC    U6/S7   H       30s      1        128        Any      16
Fa0/2     SC    U6/S7   H       30s      1        128        Any      16

This is an example of output from the show pagp 1 neighbor command:

Switch> show pagp 1 neighbor
Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.        P - Device learns on physical port.

Channel group 1 neighbors
          Partner              Partner          Partner         Partner Group
Port      Name                 Device ID        Port       Age  Flags   Cap.
Fa0/1     device-p2            0002.4b29.4600   Fa0/1        9s SC      10001 
Fa0/2     device-p2            0002.4b29.4600   Fa0/2       24s SC      10001 

Related Commands

Command
Description

clear pagp

Clears PAgP channel-group information.

pagp learn-method

Sets the source-address learning method of incoming packets received from an EtherChannel port.


show parser macro

Use the show parser macro user EXEC command to display the parameters for all configured macros or for one macro on the switch.

show parser macro [{brief | description [interface interface-id] | name macro-name}] | {begin | exclude | include} expression]

Syntax Description

brief

(Optional) Display the name of each macro.

description [interface interface-id]

(Optional) Display all macro descriptions or the description of a specific interface.

name macro-name

(Optional) Display information about a single macro identified by the macro name.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(19)EA1

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is a partial output example from the show parser macro command. The output for the Cisco-default macros varies depending on the switch platform and the software image running on the switch:

Switch# show parser macro
Total number of macros = 6
--------------------------------------------------------------
Macro name : cisco-global
Macro type : default global
# Enable dynamic port error recovery for link state
# failures
errdisable recovery cause link-flap
errdisable recovery interval 60

<output truncated>

--------------------------------------------------------------
Macro name : cisco-desktop
Macro type : default interface
# macro keywords $AVID
# Basic interface - Enable data VLAN only
# Recommended value for access vlan (AVID) should not be 1
switchport access vlan $AVID
switchport mode access

<output truncated>

--------------------------------------------------------------
Macro name : cisco-phone
Macro type : default interface
# Cisco IP phone + desktop template
# macro keywords $AVID $VVID
# VoIP enabled interface - Enable data VLAN
# and voice VLAN (VVID)
# Recommended value for access vlan (AVID) should not be 1
switchport access vlan $AVID
switchport mode access

<output truncated>

--------------------------------------------------------------
Macro name : cisco-switch
Macro type : default interface
# macro keywords $NVID
# Access Uplink to Distribution
# Do not apply to EtherChannel/Port Group
# Define unique Native VLAN on trunk ports
# Recommended value for native vlan (NVID) should not be 1
switchport trunk native vlan $NVID

<output truncated>

--------------------------------------------------------------
Macro name : cisco-router
Macro type : default interface
# macro keywords $NVID
# Access Uplink to Distribution
# Define unique Native VLAN on trunk ports
# Recommended value for native vlan (NVID) should not be 1
switchport trunk native vlan $NVID

<output truncated>

--------------------------------------------------------------
Macro name : snmp
Macro type : customizable

#enable port security, linkup, and linkdown traps
snmp-server enable traps port-security
snmp-server enable traps linkup
snmp-server enable traps linkdown
#set snmp-server host
snmp-server host ADDRESS
#set SNMP trap notifications precedence
snmp-server ip precedence VALUE

--------------------------------------------------------------

This is an example of output from the show parser macro name command:

Switch# show parser macro name standard-switch10
Macro name : standard-switch10
Macro type : customizable
macro description standard-switch10
# Trust QoS settings on VOIP packets
auto qos voip trust
# Allow port channels to be automatically formed
channel-protocol pagp

This is an example of output from the show parser macro brief command:

Switch# show parser macro brief
    default global   : cisco-global
    default interface: cisco-desktop
    default interface: cisco-phone
    default interface: cisco-switch
    default interface: cisco-router
    customizable     : snmp

This is an example of output from the show parser description command:

Switch# show parser macro description 
Global Macro(s): cisco-global
Interface    Macro Description(s)
--------------------------------------------------------------
Fa0/1        standard-switch10
Fa0/2       this is test macro
--------------------------------------------------------------

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

Switch# show parser macro description interface fastethernet0/2
Interface    Macro Description
--------------------------------------------------------------
Fa0/2      this is test macro
--------------------------------------------------------------

Related Commands

Command
Description

macro apply

Applies a macro on an interface or applies and traces a macro on an interface.

macro description

Adds a description about the macros that are applied to an interface.

macro global

Applies a macro on a switch or applies and traces a macro on a switch.

macro global description

Adds a description about the macros that are applied to the switch.

macro name

Creates a macro.

show running-config

Displays the current operating configuration, including defined macros. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference, Release 12.1> File Management Commands > Configuration File Management Commands.


show policy-map

Use the show policy-map user EXEC command to display quality of service (QoS) policy maps, which define classification criteria for incoming traffic. Policy maps can include policers that specify the bandwidth limitations and the action to take if the limits are exceeded.

show policy-map [policy-map-name [class class-name]] [ | {begin | exclude | include} expression]

This command is available only if your switch is running the enhanced software image (EI).

Syntax Description

policy-map-name

(Optional) Display the specified policy-map name.

class class-name

(Optional) Display QoS policy actions for a individual class.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Use the show policy-map command without keywords to display all policy maps configured on the switch.


Note In a policy map, the class named class-default is not supported. The switch does not filter traffic based on the policy map defined by the class class-default policy-map configuration command.


Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show policy-map
 Policy Map bumbum
    Description: this is a description.

 Policy Map wizard_policy3
  class wizard_1-1-1-2
   set ip dscp 34

 Policy Map test

 Policy Map policytest
  class  classtest
   set ip dscp 20
   police 10000000 8192 exceed-action drop

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

Switch> show policy-map pmtimerin
 Policy Map pmtimerin
  class  cmtimerin
   set ip dscp 10
   police 1000000 4096 exceed-action drop
  class  ctimerin1
   police 2000000 4096 exceed-action drop

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

Switch> show policy-map policytest class classtest
   set ip dscp 20
   police 10000000 8192 exceed-action drop

Related Commands

Command
Description

policy-map

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


show port-security

Use the show port-security privileged EXEC command to display the port security settings defined for an interface or for the switch.

show port-security [interface interface-id] [address] [ | {begin | exclude | include} expression]

Syntax Description

interface interface-id

(Optional) Display the port security settings for the specified interface.

address

(Optional) Display all the secure addresses on all ports.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced. It replaced the show port security and show mac-address-table secure commands.


Usage Guidelines

If you enter this command without keywords, the output includes the administrative and the operational status of all secure ports on the switch.

If you enter an interface-id, the show port-security command displays port security settings for the interface.

If you enter the address keyword, the show port-security address command displays the secure MAC addresses for all interfaces and the aging information for each secure address.

If you enter an interface-id and the address keyword, the show port-security interface interface-id address command displays all the MAC addresses for the interface with aging information for each secure address. You can also use this command to display all the MAC addresses for an interface even if you have not enabled port security on it.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show port-security command:

Switch# show port-security
Secure Port      MaxSecureAddr  CurrentAddr  SecurityViolation  Security
Action
                    (Count)        (Count)      (Count)
----------------------------------------------------------------------------
     Fa0/1           11            11            0            Shutdown
     Fa0/2           15            5             0            Restrict
     Fa0/2           5             4             0            Protect
----------------------------------------------------------------------------
Total Addresses in System :21
Max Addresses limit in System :1024

This is an example of output from the show port-security interface command:

Switch# show port-security interface fastethernet0/2
Port Security :Enabled
Port status :SecureUp
Violation mode :Shutdown
Maximum MAC Addresses :11
Total MAC Addresses :11
Configured MAC Addresses :3
Aging time :20 mins
Aging type :Inactivity
SecureStatic address aging :Enabled
Security Violation count :0

This is an example of output from the show port-security address command:

Switch# show port-security address

Secure Mac Address Table
-------------------------------------------------------------------
Vlan    Mac Address       Type                Ports   Remaining Age
                                                         (mins)
----    -----------       ----                -----   -------------
   1    0001.0001.0001    SecureDynamic       Fa0/1      15 (I)
   1    0001.0001.0002    SecureDynamic       Fa0/1      15 (I)
   1    0001.0001.1111    SecureConfigured    Fa0/1      16 (I)
   1    0001.0001.1112    SecureConfigured    Fa0/1      -
   1    0001.0001.1113    SecureConfigured    Fa0/1      -
   1    0005.0005.0001    SecureConfigured    Fa0/5      23
   1    0005.0005.0002    SecureConfigured    Fa0/5      23
   1    0005.0005.0003    SecureConfigured    Fa0/5      23
   1    0011.0011.0001    SecureConfigured    Fa0/6      25 (I)
   1    0011.0011.0002    SecureConfigured    Fa0/7      25 (I)
-------------------------------------------------------------------
Total Addresses in System :10
Max Addresses limit in System :1024

This is an example of output from the show port-security interface address command:

Switch# show port-security interface fastethernet0/5 address
Secure Mac Address Table
-------------------------------------------------------------------
Vlan    Mac Address       Type                Ports   Remaining Age
                                                         (mins)
----    -----------       ----                -----   -------------
   1    0005.0005.0001    SecureConfigured    Fa0/5      19 (I)
   1    0005.0005.0002    SecureConfigured    Fa0/5      19 (I)
   1    0005.0005.0003    SecureConfigured    Fa0/5      19 (I)
-------------------------------------------------------------------
Total Addresses:3

Related Commands

Command
Description

switchport port-security

Enables port security on a port, restricts the use of the port to a user-defined group of stations, and configures secure MAC addresses.


show rps

Use the show rps privileged EXEC command to display the status of the Cisco Redundant Power System (RPS).

show rps [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show rps command. Table 2-28 describes the possible output.

Switch# show rps
GREEN

Table 2-28 show rps Output Description 

Display
Description

BLACK

The RPS is off or not properly connected.

GREEN

The RPS is connected and ready to provide back-up power, if required.

ALT_GREEN_BLACK

The RPS is connected but is unavailable because it is providing power to another device (redundancy has been allocated to a neighboring device).

ALT_AMBER_BLACK

The internal power supply in the switch has failed, and the RPS is providing power to the switch (redundancy has been allocated to this device).

AMBER

The RPS is in standby mode, or the RPS has detected a failure.

Press the Standby/Active button on the RPS to put the RPS in active mode. If the RPS LED on the switch remains amber, the RPS has detected a failure.

If the failure is minor, the RPS might be in any of the previously described modes. If the failure is critical, the RPS will be down.

RPS failures include these modes:

The RPS +12V or -48V voltages exceed the specified thresholds.

The RPS has a fan failure.

The RPS detects excessive temperature.

The RPS has a faulty connection to the switch.


show running-config vlan

Use the show running-config vlan privileged EXEC command to display all or a range of VLAN-related configurations on the switch.

show running-config vlan [vlan-ids] [ | {begin | exclude | include} expression]

Syntax Description

vlan-ids

(Optional) Display configuration information for a single VLAN identified by VLAN ID number or a range of VLANs separated by a hyphen. The range is 1 to 4094.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(9)EA1

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show running-config vlan command:

Switch# show running-config vlan 900-2005
Building configuration...

Current configuration:
!
vlan 107
!
vlan 120
!
vlan 925
!
vlan 1000
end

Related Commands

Command
Description

show running-config

Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.

vlan (global configuration)

Enters config-vlan mode for creating and editing VLANs. When VLAN Trunking Protocol (VTP) mode is transparent, you can use this mode to create extended-range VLANs (VLAN IDs greater than 1005).

vlan database

Enters VLAN configuration mode for creating and editing normal-range VLANs.


show setup express

Use the show setup express privileged EXEC command to show if Express Setup mode is active on the switch.

show setup express

This command is available only on Catalyst 2950 switches.

Syntax Description

This command has no arguments or keywords.

Defaults

No default is defined.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(14)EA1

This command was introduced.


Examples

This is an example of output from the show setup express command:

Switch# show setup express
express setup mode is active

Related Commands

Command
Description

setup express

Enables Express Setup mode on the switch.


show spanning-tree

Use the show spanning-tree user EXEC command to display spanning-tree state information.

show spanning-tree [active [detail] | backbonefast | blockedports | bridge | detail [active] | inconsistentports | interface interface-id | mst | pathcost method | root | summary [totals] | uplinkfast | vlan vlan-id] [ | {begin | exclude | include} expression]

show spanning-tree vlan vlan-id [active [detail] | blockedports | bridge | detail [active] | inconsistentports | interface interface-id | root | summary] [ | {begin | exclude | include} expression

show spanning-tree {vlan vlan-id} bridge [address | detail | forward-time | hello-time | id | max-age | priority [system-id] | protocol] [ | {begin | exclude | include} expression]

show spanning-tree {vlan vlan-id} root [address | cost | detail | forward-time | hello-time | id | max-age | port | priority [system-id] [ | {begin | exclude | include} expression]

show spanning-tree interface interface-id [active [detail] | cost | detail [active] | inconsistency | portfast | priority | rootcost | state] [ | {begin | exclude | include} expression]

show spanning-tree mst [configuration | instance-id] [detail | interface interface-id [detail]]
[ | {begin | exclude | include} expression]

Syntax Description

active [detail]

(Optional) Display spanning-tree information only on active interfaces (only available in privileged EXEC mode).

backbonefast

(Optional) Display spanning-tree BackboneFast status.

blockedports

(Optional) Display blocked port information (only available in privileged EXEC mode).

bridge [address | detail | forward-time | hello-time | id | max-age | priority [system-id] | protocol]

(Optional) Display status and configuration of this switch (optional keywords only available in privileged EXEC mode).

detail [active]

(Optional) Display a detailed summary of interface information (active keyword only available in privileged EXEC mode).

inconsistentports

(Optional) Display inconsistent port information (only available in privileged EXEC mode).

interface interface-id [active [detail] | cost | detail [active] | inconsistency | portfast | priority | rootcost | state]

(Optional) Display spanning-tree information for the specified interface (all options except portfast and state only available in privileged EXEC mode). Enter each interface separated by a space. Ranges are not supported. Valid interfaces include physical ports, VLANs, and port channels. The VLAN range is 1 to 4094. The port-channel range is 1 to 6.

mst [configuration | instance-id] [detail | interface interface-id [detail]]

(Optional) Display the multiple spanning-tree (MST) region configuration and status (all options only available in privileged EXEC mode).

Display MST information for an instance, a range of instances separated by a hyphen, or a series of instances separated by a comma. The range is 0 to 15.

Valid interfaces include physical ports, VLANs, and port channels. The VLAN range is 1 to 4094. The port-channel range is 1 to 6.

pathcost method

(Optional) Display the default path cost method (only available in privileged EXEC mode).

root [address | cost | detail | forward-time | hello-time | id | max-age | port | priority [system-id]]

(Optional) Display root switch status and configuration (all keywords only available in privileged EXEC mode).

summary [totals]

(Optional) Display a summary of port states or the total lines of the spanning-tree state section.

uplinkfast

(Optional) Display spanning-tree UplinkFast status.

vlan vlan-id [active [detail] | backbonefast | blockedports | bridge [address | detail | forward-time | hello-time | id | max-age | priority [system-id] | protocol]

(Optional) Display spanning-tree information for 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 (some keywords only available in privileged EXEC mode).

The VLAN range is 1 to 4094.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC; indicated keywords available only in privileged EXEC mode

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(6)EA2

The active, backbonefast, blockedports, bridge, inconsistentports, pathcost method, root, total, and uplinkfast keywords were added.

12.1(9)EA1

The mst keyword and options were added. The brief keyword was removed, and the detail keyword was added.

12.1(20)EA2

This command was added to the SI.


Usage Guidelines

If the vlan-id variable is omitted, the command applies to the spanning-tree instance for all VLANs.

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show spanning-tree active command:

Switch# show spanning-tree active
VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    20481
             Address     0008.217a.5800
             Cost        38
             Port        1 (FastEthernet0/1)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
             Address     0008.205e.6600
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1            Root FWD 19        128.1    P2p

This is an example of output from the show spanning-tree detail command:

Switch> show spanning-tree detail

VLAN0001 is executing the ieee compatible Spanning Tree protocol
  Bridge Identifier has priority 32768, sysid 1, address 0008.205e.6600
  Configured hello time 2, max age 20, forward delay 15
  Current root has priority 20481, address 0008.217a.5800
  Root port is 1 (FastEthernet0/1), cost of root path is 38
  Topology change flag not set, detected flag not set
  Number of topology changes 0 last change occurred 3w0d ago
  Times:  hold 1, topology change 35, notification 2
          hello 2, max age 20, forward delay 15
  Timers: hello 0, topology change 0, notification 0, aging 300

 Port 1 (FastEthernet0/1) of VLAN0001 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 128.1.
   Designated root has priority 20481, address 0008.217a.5800
   Designated bridge has priority 65535, address 0050.2aed.5c80
   Designated port id is 128.26, designated path cost 19
   Timers: message age 3, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   Link type is point-to-point by default
   BPDU: sent 0, received 947349

<output truncated>

This is an example of output from the show spanning-tree interface fastethernet0/1 command:

Switch> show spanning-tree interface fastethernet0/1

Vlan             Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
VLAN0001         Root FWD 19        128.1    P2p
VLAN0002         Desg FWD 19        128.2    P2p 
VLAN0003         Desg FWD 19        128.2    P2p 

This is an example of output from the show spanning-tree summary command:

Switch> show spanning-tree summary
Switch is in pvst mode
Root bridge for: none
EtherChannel misconfiguration guard is enabled
Extended system ID   is enabled
Portfast             is disabled by default
PortFast BPDU Guard  is disabled by default
Portfast BPDU Filter is disabled by default
Loopguard            is disabled by default
UplinkFast           is disabled
BackboneFast         is disabled
Pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001                     0         0        0          1          1
---------------------- -------- --------- -------- ---------- ----------
1 vlan                       0         0        0          1          1

<output truncated>

This is an example of output from the show spanning-tree mst configuration command:

Switch# show spanning-tree mst configuration
Name      [region1]
Revision  1
Instance  Vlans mapped
--------  ---------------------------------------------------------------------
0         101-4094
1         1-100
-------------------------------------------------------------------------------

This is an example of output from the show spanning-tree mst interface fastethernet0/1 command:

Switch# show spanning-tree mst interface fastethernet0/1

FastEthernet0/1 of MST00 is designated forwarding 
Edge port:no             (default)        port guard :none        (default)
Link type:point-to-point (auto)           bpdu filter:disable     (default)
Boundary :internal                        bpdu guard :disable     (default)
Bpdus sent 84122, received 83933

Instance Role Sts Cost      Prio.Nbr Vlans mapped
-------- ---- --- --------- -------- -------------------------------
0        Desg FWD 200000    128.1    101-4094
1        Root FWD 200000    128.1    1-100

This is an example of output from the show spanning-tree mst 0 command:

Switch# show spanning-tree mst 0
###### MST00        vlans mapped:  101-4094
Bridge      address 0005.7428.1f40  priority  32768 (32768 sysid 0)
Root        address 0001.42e2.cdc6  priority  32768 (32768 sysid 0)
            port    Fa0/2           path cost 200038   
IST master  this switch
Operational hello time 2, forward delay 15, max age 20
Configured  hello time 2, forward delay 15, max age 20, max hops 20

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1            Desg FWD 200000    128.1    P2p 
Fa0/2            Root FWD 200000    128.2    P2p Bound(PVST) 

Related Commands

Command
Description

clear spanning-tree counters

Clears the spanning-tree counters.

clear spanning-tree detected-protocols

Restarts the protocol migration process.

spanning-tree backbonefast

Enables the BackboneFast feature.

spanning-tree bpdufilter

Prevents a port from sending or receiving bridge protocol data units (BPDUs).

spanning-tree bpduguard

Puts a port in the error-disabled state when it receives a BPDU.

spanning-tree cost

Sets the path cost for spanning-tree calculations.

spanning-tree extend system-id

Enables the extended system ID feature.

spanning-tree guard

Enables the root guard or the loop guard feature for all the VLANs associated with the selected interface.

spanning-tree link-type

Overrides the default link-type setting for rapid spanning-tree transitions to the forwarding state.

spanning-tree loopguard default

Prevents alternate or root ports from becoming the designated port because of a failure that leads to a unidirectional link.

spanning-tree mst configuration

Enters multiple spanning-tree (MST) configuration mode through which the MST region configuration occurs.

spanning-tree mst cost

Sets the path cost for MST calculations.

spanning-tree mst forward-time

Sets the forward-delay time for all MST instances.

spanning-tree mst hello-time

Sets the interval between hello BPDUs sent by root switch configuration messages.

spanning-tree mst max-age

Sets the interval between messages that the spanning tree receives from the root switch.

spanning-tree mst max-hops

Sets the number of hops in an MST region before the BPDU is discarded and the information held for a port is aged.

spanning-tree mst port-priority

Configures an interface priority.

spanning-tree mst priority

Configures the switch priority for the specified spanning-tree instance.

spanning-tree mst root

Configures the MST root switch priority and timers based on the network diameter.

spanning-tree port-priority

Configures an interface priority.

spanning-tree portfast (global configuration)

Globally enables the BPDU filtering or the BPDU guard feature on Port Fast-enabled ports or enables the Port Fast feature on all nontrunking ports.

spanning-tree portfast (interface configuration)

Enables the Port Fast feature on an interface and all its associated VLANs.

spanning-tree uplinkfast

Accelerates the choice of a new root port when a link or switch fails or when the spanning tree reconfigures itself.

spanning-tree vlan

Configures spanning tree on a per-VLAN basis.


show storm-control

Use the show storm-control user EXEC command to display the packet-storm control information. This command also displays the action that the switch takes when the thresholds are reached.

show storm-control [interface-id] [{broadcast | history | multicast | unicast}] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) Port for which information is to be displayed.

broadcast

(Optional) Display broadcast storm information.

history

(Optional) Display storm history on a per-port basis.

multicast

(Optional) Display multicast storm information.

unicast

(Optional) Display unicast storm information.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced. It replaced the show port storm-control command.


Usage Guidelines

If the variable interface-id is omitted, the show storm-control command displays storm-control settings for all ports on the switch.

You can display broadcast, multicast, or unicast packet-storm information by using the corresponding keyword. When no option is specified, the default is to display broadcast storm-control information.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show storm-control broadcast command when the rising and falling suppression levels are defined as percentages of the total bandwidth:

Switch> show storm-control broadcast

Interface  Filter State   Trap State     Upper    Lower    Current  Traps Sent
---------  -------------  -------------  -------  -------  -------  ----------
Fa0/1      <inactive>     <inactive>     100.00%  100.00%    0.00%           0
Fa0/2      <inactive>     <inactive>     100.00%  100.00%    0.00%           0
Fa0/3      <inactive>     <inactive>     100.00%  100.00%    0.00%           0
Fa0/4      Forwarding     Below rising    30.00%   20.00% 20.32%            17

Table 2-29 lists the show storm-control field descriptions.

Table 2-29 show storm-control Field Descriptions 

Field
Description

Interface

Displays the ID of the interface.

Filter State

Displays the status of the filter:

Blocking—Storm control is enabled, action is filter, and a storm has occurred.

Forwarding—Storm control is enabled, and a storm has not occurred.

Inactive—Storm control is disabled.

Shutdown—Storm control is enabled, the action is to shut down, and a storm has occurred.

Note If an interface is disabled by a broadcast, multicast, or unicast storm, the filter state for all traffic types is shutdown.

Trap State

Displays the status of the SNMP trap:

Above rising—Storm control is enabled, and a storm has occurred.

Below rising—Storm control is enabled, and a storm has not occurred.

Inactive—The trap option is not enabled.

Upper

Displays the rising suppression level as a percentage of total available bandwidth.

Lower

Displays the falling suppression level as a percentage of total available bandwidth.

Current

Displays the bandwidth utilization of a specific traffic type as a percentage of total available bandwidth. This field is valid only when storm control is enabled.

Traps Sent

Displays the number traps sent on an interface for a specific traffic type.


This is an example of output from the show storm-control fastethernet0/4 history command, which displays the ten most recent storm events for an interface:

Switch> show storm-control fastethernet0/4 history

 Interface Fa0/4 Storm Event History 

 Event Type          Event Start Time  Duration (seconds)
 ------------------  ----------------  ------------------
 Unicast             04:58:18          206      
 Broadcast           05:01:54          n/a
 Multicast           05:01:54          n/a
 Unicast             05:01:54          108      
 Broadcast           05:05:00          n/a
 Multicast           05:05:00          n/a
 Unicast             05:06:00          n/a
 Broadcast           05:09:39          n/a
 Multicast           05:09:39          n/a
 Broadcast           05:11:32          172      


Note The duration field could be n/a when a storm is still present or when a new storm of a different type occurs before the current storm ends.


Related Commands

Command
Description

storm-control

Enables broadcast, multicast, or unicast storm control on a port.


show system mtu

Use the show system mtu privileged EXEC command to display the global maximum packet size or maximum transmission unit (MTU) set for the switch.

show system mtu [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch# show system mtu
System MTU size is 1500 bytes

Related Commands

Command
Description

system mtu

Sets the MTU size for the switch.


show udld

Use the show udld user EXEC command to display UniDirectional Link Detection (UDLD) status for all ports or the specified port.

show udld [interface-id] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) ID of the interface and port number. Valid interfaces include physical ports and VLANs. The VLAN range is 1 to 4094.

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

If you do not enter an interface-id, the administrative and the operational UDLD status for all interfaces appear.

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show udld gigabitethernet0/1 command. In this example, UDLD is enabled on both ends of the link, and UDLD detects that the link is bidirectional. Table 2-30 describes the fields in this example.

Switch> show udld gigabitethernet0/1
Interface gi0/1
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled
Current bidirectional state: Bidirectional
Current operational state: Advertisement - Single Neighbor detected
Message interval: 60
Time out interval: 5
    Entry 1
    Expiration time: 146
    Device ID: 1
    Current neighbor state: Bidirectional
    Device name: 0050e2826000  
    Port ID: Gi0/2
    Neighbor echo 1 device: SAD03160954
    Neighbor echo 1 port: Gi0/1 
    Message interval: 5
    CDP Device name: 066527791

Table 2-30 show udld Field Descriptions 

Field
Description

Interface

The interface on the local device configured for UDLD.

Port enable administrative configuration setting

How UDLD is configured on the port. If UDLD is enabled or disabled, the port enable configuration setting is the same as the operational enable state. Otherwise, the enable operational setting depends on the global enable setting.

Port enable operational state

Operational state that shows whether UDLD is actually running on this port.

Current bidirectional state

The bidirectional state of the link. An unknown state appears if the link is down or if it is connected to an UDLD-incapable device. A bidirectional state appears if the link is a normal two-way connection to a UDLD-capable device. All other values mean miswiring.

Current operational state

The phase of the UDLD state machine. For a normal bidirectional link, the state machine is usually in the Advertisement phase.

Message interval

How often advertisement messages are sent from the local device. Measured in seconds.

Time out interval

The time period, in seconds, that UDLD waits for echoes from a neighbor device during the detection window.

Entry 1

Information from the first cache entry, which contains a copy of echo information received from the neighbor.

Expiration time

The amount of time in seconds remaining before this cache entry is aged out.

Device ID

The neighbor device identification.

Current neighbor state

The neighbor's state. If both the local and neighbor devices are running UDLD, the neighbor state and the local state is bidirectional. If the link is down or the neighbor is not UDLD-capable, no cache entries appear.

Device name

The neighbor MAC address.

Port ID

The neighbor port ID enabled for UDLD.

Neighbor echo 1 device

The MAC address of the neighbors' neighbor from which the echo originated.

Neighbor echo 1 port

The port number ID of the neighbor from which the echo originated.

Message interval

The rate, in seconds, at which the neighbor is sending advertisement messages.

CDP1 device name

CDP name of the device.

1 CDP = Cisco Discovery Protocol


This is an example of output from the show udld interface configuration command when the aggressive mode is configured:

Switch# show udld gigabitethernet0/1
Interface Gi0/1
---
Port enable administrative configuration setting:Enabled / in aggressive mode
Port enable operational state:Enabled / in aggressive mode
Current bidirectional state:Unknown
Current operational state:Link down
Message interval:7
Time out interval:5

No neighbor cache information stored

Related Commands

Command
Description

udld

Enables UDLD on all ports on the switch.

udld port

Enables UDLD on a specific port.

udld reset

Resets any interface that was shut down by UDLD.


show version

Use the show version user EXEC command to display version information for the hardware and firmware.

show version [ | {begin | exclude | include} expression]

Syntax Description

| begin

(Optional) Display begins with the line that matches the specified expression.

| exclude

(Optional) Display excludes lines that match the specified expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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


Note Though visible in the show version output, the configuration register information is not supported on the switch.


Switch> show version
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(9)EA1
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Wed 27-Feb-02 06:51 by antonino
Image text-base:0x80010000, data-base:0x804E2000

ROM:Bootstrap program is C2950 boot loader

Switch uptime is 1 hour, 54 minutes
System returned to ROM by power-on
System image file is "flash:c2950-i6q4l2-mz.121-0.0.9.EA1.bin"

cisco WS-C2950G-12-EI (RC32300) processor with 20830K bytes of memory.
Last reset from system-reset
Running Enhanced Image
12 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address:00:05:74:28:09:C0
Configuration register is 0xF
<output truncated>

show vlan

Use the show vlan user EXEC command to display the parameters for all configured VLANs or one VLAN (if the VLAN ID or name is specified) on the switch.

show vlan [brief | id vlan-id | name vlan-name | remote-span | summary] | {begin | exclude | include} expression]

Syntax Description

brief

(Optional) Display one line for each VLAN with the VLAN name, status, and its ports.

id vlan-id

(Optional) Display information about a single VLAN identified by VLAN ID number or a range of VLANs. For vlan-id, the range is 1 to 4094.

name vlan-name

(Optional) Display information about a single VLAN identified by VLAN name. The VLAN name is an ASCII string from 1 to 32 characters.

remote-span

(Optional) Display information about Remote SPAN (RSPAN) VLANs.

summary

(Optional) Display VLAN summary information. This keyword is available only if your switch is running the EI.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Syntax Description

Syntax DescriptionN


Note Though visible in the command-line help string when the EI is installed, the internal usage, ifindex, and private-vlan keywords are not supported.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(9)EA1

The summary keyword was added.

12.1(11)EA1

The remote-span keyword was added.


Usage Guidelines

Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This is an example of output from the show vlan command. Table 2-31 describes each field in the display.

Switch> show vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/1, Fa0/2, Fa0/5, Fa0/7
2    VLAN0002                         active
51   VLAN0051                         active
52   VLAN0052                         active
100  VLAN0100                         suspended Fa0/3
400  VLAN0400                         suspended
1002 fddi-default                     active
1003 token-ring-default               active
1004 fddinet-default                  active
1005 trnet-default                    active

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        1002   1003
2    enet  100002     1500  -      -      -        -    -        0      0
51   enet  100051     1500  -      -      -        -    -        0      0
52   enet  100052     1500  -      -      -        -    -        0      0
100  enet  100100     1500  -      -      -        -    -        0      0
400  enet  100400     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -    -        1      1003
1003 tr    101003     1500  1005   3276   -        -    srb      1      1002
1004 fdnet 101004     1500  -      -      1        ieee -        0      0
1005 trnet 101005     1500  -      -      15       ibm  -        0      0
Remote SPAN VLANs
------------------------------------------------------------------------------


Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------

Table 2-31 show vlan Command Output Fields 

Field
Description

VLAN

VLAN number.

Name

Name, if configured, of the VLAN.

Status

Status of the VLAN (active or suspend).

Ports

Ports that belong to the VLAN.

Type

Media type of the VLAN.

SAID

Security association ID value for the VLAN.

MTU

Maximum transmission unit size for the VLAN.

Parent

Parent VLAN, if one exists.

RingNo

Ring number for the VLAN, if applicable.

BrdgNo

Bridge number for the VLAN, if applicable.

Stp

Spanning Tree Protocol type used on the VLAN.

BrdgMode

Bridging mode for this VLAN—possible values are source-route bridging (SRB) and source-route transparent (SRT); the default is SRB.

Trans1

Translation bridge 1.

Trans2

Translation bridge 2.

AREHops

Maximum number of hops for All-Routes Explorer frames—possible values are 1 through 13; the default is 7.

STEHops

Maximum number of hops for Spanning-Tree Explorer frames—possible values are 1 to 13; the default is 7.

Backup CRF

Status of whether or not the Token Ring concentrator relay function (TrCRF) is a backup path for traffic.


This is an example of output from the show vlan brief command:

Switch> show vlan brief
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6
1002 fddi-default                     active
1003 token-ring-default               active
1004 fddinet-default                  active
1005 trnet-default                    active

This is an example of output from the show vlan id command. The specified VLAN is in the extended VLAN range.

Switch# show vlan id 2005
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
2005 VLAN 2005                         active    Fa0/2

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
2005 enet  102005     1500  -      -      -        -    -        0      0      

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

Switch> show vlan summary
Number of existing VLANs           : 7
Number of existing VTP VLANs      : 7
Number of existing extended VLANs : 0

Related Commands

Command
Description

switchport mode

Configures the VLAN membership mode of a port.

vlan (global configuration)

Enables config-vlan mode where you can configure VLANs 1 to 4094.

vlan (VLAN configuration)

Configures VLAN characteristics in the VLAN database. Only available for normal-range VLANs (VLAN IDs 1 to 1005).


show vmps

Use the show vmps user EXEC command without keywords to display the VLAN Query Protocol (VQP) version, reconfirmation interval, retry count, VLAN Membership Policy Server (VMPS) IP addresses, and the current and primary servers, or use the statistics keyword to display client-side statistics.

show vmps [statistics] [ | {begin | exclude | include} expression]

Syntax Description

statistics

(Optional) Display VQP client-side statistics and counters.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Expressions are case sensitive. For example, if you enterexclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

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

Switch> show vmps
VQP Client Status:
--------------------
VMPS VQP Version:   1
Reconfirm Interval: 60 min
Server Retry Count: 3
VMPS domain server:

Reconfirmation status
---------------------
VMPS Action:         other

This is an example of output from the show vmps statistics command. Table 2-32 describes each field in the example.

Switch> show vmps statistics
VMPS Client Statistics
----------------------
VQP  Queries:               0
VQP  Responses:             0
VMPS Changes:               0
VQP  Shutdowns:             0
VQP  Denied:                0
VQP  Wrong Domain:          0
VQP  Wrong Version:         0
VQP  Insufficient Resource: 0 

Table 2-32 show vmps statistics Field Descriptions 

Field
Description

VQP Queries

Number of queries sent by the client to the VMPS.

VQP Responses

Number of responses sent to the client from the VMPS.

VMPS Changes

Number of times that the VMPS changed from one server to another.

VQP Shutdowns

Number of times the VMPS sent a response to shut down the port. The client disables the port and removes all dynamic addresses on this port from the address table. You must administratively re-enable the port to restore connectivity.

VQP Denied

Number of times the VMPS denied the client request for security reasons. When the VMPS response denies an address, no frame is forwarded to or from the workstation with that address. (Broadcast or multicast frames are delivered to the workstation if the port on the switch has been assigned to a VLAN.) The client keeps the denied address in the address table as a blocked address to prevent further queries from being sent to the VMPS for each new packet received from this workstation. The client ages the address if no new packets are received from this workstation on this port within the aging time period.

VQP Wrong Domain

Number of times the management domain in the request does not match the one for the VMPS. Any previous VLAN assignments of the port are not changed. This response means that the server and the client have not been configured with the same VTP management domain.

VQP Wrong Version

Number of times the version field in the query packet contains a value that is higher than the version supported by the VMPS. The previous VLAN assignment of the port is not changed. The switches send only VMPS version 1 requests.

VQP Insufficient Resource

Number of times the VMPS is unable to answer the request because of a resource availability problem. If the retry limit has not yet been reached, the client repeats the request with the same server or with the next alternate server, depending on whether the per-server retry count has been reached.


Related Commands

Command
Description

clear vmps statistics

Clears the statistics maintained by the VQP client.

vmps reconfirm (global configuration)

Sends VQP queries to reconfirm all dynamic VLAN assignments with the VMPS.

vmps retry

Configures the per-server retry count for the VQP client.

vmps server

Configures the primary VMPS and up to three secondary servers.


show vtp

Use the show vtp user EXEC command to display general information about the VLAN Trunking Protocol (VTP) management domain, status, and counters.

show vtp {counters | status} [ | {begin | exclude | include} expression]

Syntax Description

counters

Display the VTP statistics for the switch.

status

Display general information about the VTP management domain status.

| begin

(Optional) Display begins with the line that matches the expression.

| exclude

(Optional) Display excludes lines that match the expression.

| include

(Optional) Display includes lines that match the specified expression.

expression

Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.