Catalyst 2950 Desktop Switch Command Reference, 12.1(11)YJ
Cisco IOS Commands - s
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2

Table Of Contents

service-policy

set

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 identity

show controllers lre cpe mfg

show controllers lre cpe protected

show controllers lre cpe version

show controllers lre interface-id actual

show controllers lre interface-id admin

show controllers lre link monitor errors

show controllers lre link monitor parameters

show controllers lre link monitor statistics

show controllers lre log

show controllers lre log level

show controllers lre profile names

show controllers lre profile details

show controllers lre sequence

show controllers lre status

show controllers lre version

show dot1x

show env

show errdisable recovery

show etherchannel

show file

show interfaces

show interfaces counters

show ip access-lists

show ip igmp snooping

show ip igmp snooping mrouter

show lre upgrade binaries

show lre upgrade status

show lre upgrade version

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 policy-map

show port-security

show remote lre

show rps

show running-config vlan

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 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 mode

switchport nonegotiate

switchport port-security

switchport port-security aging

switchport priority extend

switchport protected

switchport trunk

switchport voice vlan

system mtu


2

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), refer to the "Configuring Network Security with ACLs" chapter in the Catalyst 2950 Desktop Switch Software Configuration Guide for this release.


Examples

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

Switch(config)# interface gigabitethernet0/1
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), refer to the "Configuring Network Security with ACLs" chapter in the Catalyst 2950 Desktop Switch 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.


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 from 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 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 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 configuration applied and the new defaults in effect by the automatic quality of service (auto-QoS) feature.

show auto qos [interface [interface-id]] | [voip [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 auto-QoS information for the specified interface or for all interfaces. Valid interfaces include physical ports.

voip

(Optional) Display auto-QoS information for voice over IP (VoIP).

| 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(11)EA1

This command was introduced.


Usage Guidelines

This command displays the auto-QoS defaults; it does not display any user changes to the configuration that might be in effect.

To display information about the current 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 [interface-id] [policers]


Note The show running-config privileged EXEC command displays only user-entered commands, which can be written to nonvolatile RAM (NVRAM) by using the copy running-config startup-config privileged EXEC command. The show running-config command does not display the auto-QoS-generated configuration, and this configuration is not written to NVRAM.


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 auto qos voip command when auto-QoS is enabled:

Switch# show auto qos voip
AutoQoS is enabled with defaults as follows:
Cos-dscp map:
        cos:  0  1  2  3  4  5  6  7
     --------------------------------
       dscp:  0 10 18 26 34 46 48 56
Cos-queue map:
CoS Value      : 0  1  2  3  4  5  6  7
Priority Queue : 1  1  1  3  3  4  3  3
WRR Queue  :  1   2   3   4
Bandwidth  : 20   1  80   0

This is an example of output from the show auto qos voip interface gigabitethernet0/2 command when the auto qos voip cisco-phone interface configuration command is enabled:

Switch# show auto qos voip interface gigabitethernet0/2'0 
Switch#sh auto qos voip int fa0/1
FastEthernet0/1
Ingress AutoQoS is enabled
trust mode:trust cos
trust device:cisco-phone
Switch#sh auto qos voip int g0/1
GigabitEthernet0/1
Ingress AutoQoS is enabled
trust mode:trust cos
trust device:cisco-phone
Egress AutoQoS is enabled with defaults as follows:
Notify Q depth:
qid-size
 1 - 80
 2 - 1
 3 - 20
 4 - 1
Egress expedite queue: ena
wrr bandwidth weights:
qid-weights
 1 - 20
 2 - 1
 3 - 80
 4 - 0    when expedite queue is disabled
Cos-queue map:
cos-qid
 0 - 1
 1 - 1
 2 - 1
 3 - 3
 4 - 3
 5 - 4
 6 - 3
 7 - 3

This is an example of output from the show auto qos voip interface fastethernet0/1 command when 
the auto qos voip cisco-phone interface configuration command is entered:

Switch# show auto qos voip interface fastethernet0/1
FastEthernet0/1
Ingress AutoQoS is enabled
trust mode: cos
trust device: cisco-phone
Egress AutoQoS is enabled with defaults as follows:
Minimum reserve buffer size:
 170 0 65 26 0 0 0 0
Egress expedite queue: ena
wrr bandwidth weights:
qid-weights
 1 - 20
 2 - 1
 3 - 80
 4 - 0 when expedite queue is disabled
Cos-queue map:
cos-qid
 0 - 1
 1 - 1
 2 - 1
 3 - 3
 4 - 3
 5 - 4
 6 - 3
 7 - 3

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 enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.

Examples

This example shows output from the show boot command. Table 2-6 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 2-6 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 IOS uses to read and write a nonvolatile copy of the system configuration.

Private Config file

Displays the filename that IOS 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 IOS uses to hold a copy of the configuration file in memory. The configuration file cannot be larger than the buffer size allocation.


Related Commands

Command
Description

boot private-config-file

Specifies the filename that IOS 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 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 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 Descriptionshow cluster

| 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

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
00d0.7961.c4c0 c2950-012    WS-C2950-12      Fa0/5        1   0  Fa0/3 
00d0.bbf5.e900 ldf-dist-128 WS-C3524-XL      Fa0/7        1   0  Fa0/24      
00e0.1e7e.be80 1900_Switch  1900             3        0   1   0  Fa0/11      
00e0.1e9f.7a00 c2924XL-24   WS-C2924-XL      Fa0/5        1   0  Fa0/3       
00e0.1e9f.8c00 c2912XL-12-2 WS-C2912-XL      Fa0/4        1   0  Fa0/7       
00e0.1e9f.8c40 c2912XL-12-1 WS-C2912-XL      Fa0/1        1   0  Fa0/9       
0050.2e4a.9fb0 C3508XL-0032 	WS-C3508-XL 	E
0050.354e.7cd0 C2924XL-0034 	WS-C2924-XL 	E

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 from 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

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 to display the Ethernet link send and receive statistics on a Fast Ethernet or Long-Reach Ethernet (LRE) port.

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

Syntax Description

interface-id

(Optional) ID of the Fast Ethernet or LRE port.

cpe

(Optional) Display both LRE and all Fast Ethernet ports on connected devices.

port

(Optional) CPE port keywords display the Ethernet statistics of the designated customer premises equipment (CPE) Ethernet port.

port-id

CPE Ethernet port identifier. Valid values vary from 1 to 4, depending on CPE device.

| 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

Using the show controllers ethernet-controller command without specifying a Fast Ethernet or LRE port displays the Ethernet link statistics of all Ethernet ports on the switch. The output shows the internal switch statistics, the statistics collected by the LRE interface on the switch, and if the CPE option is specified, the statistics collected by the LRE interface on the connected customer premises equipment (CPE) devices.

The CPE Ethernet link on a switch LRE 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 switch LRE port and the LRE CPE device.

Examples

This is an example of output from the show controllers ethernet-controller command on Long-Reach Ethernet port 2:


Switch# show controllers ethernet-controller lo0/2

  Transmit                           Receive
  18230744 Bytes                      901461 Bytes                    
      9014 Unicast frames                 40 Unicast frames           
     55624 Multicast frames             1249 Multicast frames         
       285 Broadcast frames                0 Broadcast frames         
         0 Discarded frames                0 No bandwidth frames      
         0 Too old frames                  0 No buffers frames        
         0 Deferred frames              7456 No dest, unicast         
         0  1 collision frames             0 No dest, multicast       
         0  2 collision frames             0 No dest, broadcast       
         0  3 collision frames             0 Alignment errors         
         0  4 collision frames             0 FCS errors               
         0  5 collision frames             0 Collision fragments      
         0  6 collision frames 
         0  7 collision frames             0 Undersize frames         
         0  8 collision frames          7473 Minimum size frames      
         0  9 collision frames            25 65 to 127 byte frames    
         0 10 collision frames             0 128 to 255 byte frames   
         0 11 collision frames          1247 256 to 511 byte frames   
         0 12 collision frames             0 512 to 1023 byte frames  
         0 13 collision frames             0 1024 to 1518 byte frames 
         0 14 collision frames             0 Oversize frames          
         0 15 collision frames 
         0 Excessive collisions
         0 Late collisions 

LRE Enet Stats on Switch:

    592145 Bytes                      114825 Bytes               
      7107 Frames                       1116 Frames              
                                          26 Broadcast frames    
         0 Pause frames                    0 Pause frames        
       128 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


This is an example of output from the Ethernet statistics of the LRE chipset and all the LRE Ethernet ports on the CPE device:


Switch# show controllers ethernet-controller lo0/5 cpe

Transmit                           Receive
LRE Enet Stats on CPE:

    592145 Bytes                      114825 Bytes               
      7108 Frames                       1116 Frames              
                                           0 Broadcast frames    
         0 Pause frames                    0 Pause frames        
       177 1 collision frames              0 Alignment errors    
         0 Multiple collisions             2 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
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

CPE Fast Ethernet Port: 2
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

CPE Fast Ethernet Port: 3
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

CPE Fast Ethernet Port: 4
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

This is an example of output of the Ethernet statistics from port 3 on the CPE device:

Switch# show controllers ethernet-controller lo0/5 cpe port 3

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

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.


show controllers lre cpe identity

Use the show controllers lre cpe identity privileged EXEC command to display the model numbers of the Long-Reach Ethernet (LRE) customer premises equipment (CPE) devices connected to the LRE switch. This command also shows whether or not the connected CPE devices meet the minimum requirements for management by the LRE switch.

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

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

This command 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 either a Cisco 585 LRE CPE or a Cisco 575 LRE CPE, use the show controllers lre cpe mfg command to verify the validity of the CPE manufacturing fields.

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

Using the show controllers lre cpe identity command without specifying a switch LRE port displays the model numbers and status of all connected CPE devices.

Examples

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


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             NA               NA  NA
Lo0/15             NA               NA  NA
Lo0/16                   NON-CERTIFIED  UNSUPPORTED-MAC-MODE
Lo0/17             NA               NA  NA
Lo0/18             NA               NA  NA
Lo0/19             NA               NA  NA
Lo0/20             NA               NA  NA
Lo0/21             NA               NA  NA
Lo0/22             NA               NA  NA
Lo0/23             NA               NA  NA
Lo0/24             NA               NA  NA

Related Commands

Command
Description

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 cpe mfg

Use the show controllers lre cpe mfg privileged EXEC command to display the revision and serial numbers of the connected Cisco Long-Reach Ethernet (LRE) customer premises equipment (CPE) board, assembly, and system.

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

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

This command displays fields specific to each CPE device unit. The IOS software uses the model number field to identify the kind of CPE device attached to a Long-Reach Ethernet interface. The System Serial Number is also unique to each CPE device unit.

Examples

This is an example of output that shows the manufacturing information for the CPE device:

Switch# show controllers lre cpe mfg lo0/5

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    

Lo0/3    
Assembly Revision Number:               

Model Number :CISCO585-LRE

Model Revision Number   :A0             
Board Assembly Number   :               
Board Serial Number     :               
System Serial Number    :ACT06130068    
          

Lo0/4     
Assembly Revision Number:
Model Number            :
Model Revision Number   :
Board Assembly Number   :
Board Serial Number     :
System Serial Number    :
          
Lo0/5     
Assembly Revision Number:
Model Number            :
Model Revision Number   :
Board Assembly Number   :
Board Serial Number     :
System Serial Number    :

Lo0/6     
Assembly Revision Number:               
Model Number            :Cisco575-LRE   
Model Revision Number   :A0             
Board Assembly Number   :               
Board Serial Number     :               
System Serial Number    :               
          
Lo0/7     
Assembly Revision Number:
Model Number            :
Model Revision Number   :
Board Assembly Number   :
Board Serial Number     :
System Serial Number    :
          
Lo0/8     
Assembly Revision Number:               
Model Number            :Cisco575-LRE   
Model Revision Number   :A0             
Board Assembly Number   :               
Board Serial Number     :               
System Serial Number    : 

Lo0/9     
Assembly Revision Number:
Model Number            :
Model Revision Number   :
Board Assembly Number   :
Board Serial Number     :
System Serial Number    :
          
Lo0/10    
Assembly Revision Number:
Model Number            :
Model Revision Number   :
Board Assembly Number   :
Board Serial Number     :
System Serial Number    :
          
Lo0/11    
Assembly Revision Number:               
Model Number            :CISCO585-LRE   
Model Revision Number   :A0             
Board Assembly Number   : 

Related Commands

Command
Description

show controllers lre cpe identity

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

show controllers lre version

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


show controllers lre cpe protected

Use the show controllers lre cpe protected privileged EXEC command to display and identify Cisco 585 LRE customer premises equipmement (CPE) Ethernet ports that are configured as protected.

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

Syntax Description

interface-id

(Optional) ID of the switch Long-Reach Ethernet (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

Using the show controllers lre cpe protected command without specifying an LRE interface displays the protected port setting for each CPE port . Any Cisco 575 LRE CPE devices display a protected field output of NA.

Examples

This is an example of output that shows the CPE protected information for LRE interface lo0/9:

Switch# show controllers lre cpe protected lo0/9
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 that shows the CPE protected information for all switch 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
    Lo0/8       3      false
    Lo0/8       4      false
    Lo0/9       1      true
    Lo0/9       2      true
    Lo0/9       3      true
    Lo0/9       4      true
   Lo0/10       1      NA
   Lo0/11       1      NA
   Lo0/12       1      NA
   Lo0/13       1      NA
   Lo0/14       1      NA

Interface     Port    Protected
---------     ----    ---------
   Lo0/15       1      NA
   Lo0/16       1      NA
   Lo0/17       1      NA
   Lo0/18       1      NA
   Lo0/19       1      NA
   Lo0/20       1      NA
   Lo0/21       1      NA
   Lo0/22       1      NA
   Lo0/23       1      NA
   Lo0/24       1      NA

Related CommandsLo0/9 4 true

Command
Description

cpe protected

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


show controllers lre cpe version

Use the show controllers lre cpe version privileged EXEC command to display the version numbers of the various components (hardware, firmware, patch software, and bootloader firmware and application firmware) of the Long-Reach Ethernet (LRE) customer premises equipment (CPE) interface.

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

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

Using the show controllers lre cpe version command without specifying a switch LRE port displays the version numbers of all CPE device interfaces.

Examples

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


Switch# show controllers lre cpe version lo0/5

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

Related Commands

Command
Description

show controllers lre cpe identity

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 lre cpe mfg

Displays the revision and serial numbers of the connected Cisco Long-Reach Ethernet (LRE) customer premises equipment (CPE) board, assembly, and system.


show controllers lre interface-id actual

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

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

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

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 interleaver 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, refer to the "LRE Links and LRE Profiles" section in the Catalyst 2950 Desktop Switch Software Configuration Guide.

Examples

This is an example of output from the show controllers lre interface-id actual dsrserrs command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual dsrserrs
0
Switch#

This is an example of output from the show controllers lre interface-id actual link command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual link
UP
Switch#

This is an example of output from the show controllers lre interface-id actual rxpower command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual rxpower
26.0
Switch#

This is an example of output from the show controllers lre interface-id actual snr command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual snr
27
Switch#

This is an example of output from the show controllers lre interface-id actual txpower command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual txpower
-89.7
Switch#

This is an example of output from the show controllers lre interface-id actual usrserrs command on switch LRE port 2:

Switch# show controllers lre lo0/2 actual usrserrs
0
Switch#

This is an example of output from the show controllers lre interface-id actual link command on switch LRE port 1:

Switch# show controllers lre lo0/1 actual link
DOWN
Switch#

Related Commands

Command
Description

show controllers lre interface-id admin

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


show controllers lre interface-id 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]

Syntax Description

interface-id

ID of the switch LRE port.

admin

Administrative settings display, which might not be the same as the actual values.

dsrate

Downstream rate (Mbps) display of the LRE link.

usrate

Upstream rate (Mbps) display 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 a switch LRE 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, refer to the Catalyst 2950 Desktop Switch Software Configuration Guide.

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 on switch LRE ports 1 and 2:

Switch# show controllers lre lo0/1 admin usrate
18.750
Switch#

Switch# show controllers lre lo0/1 admin dsrate
16.667
Switch#

Switch# show controllers lre lo0/2 admin usrate
12.500
Switch#


Switch# show controllers lre lo0/2 admin dsrate
12.500
Switch#

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 mode)

Assigns a profile to a specific switch LRE port.


show controllers lre link monitor errors

Use the show controllers lre link monitor errors privileged EXEC command to display and analyze Long-Reach Ethernet (LRE) Reed Solomon errors and Ethernet errors.

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

Syntax Description

local

(Optional) Data from the LRE switch controller.

remote(

(Optional) 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 errror information at 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.

The Time heading in the output shows the timestamp for the last collection sequence. The Reed Solomon (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.

Using this command without specifying a switch port displays data for all ports.

Examples

This is an example of output that shows how to display LRE Reed Solomon and Ethernet errors for the LRE switch on LRE link 0/1:


Switch#  show controllers lre link monitor errors local lo0/1

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
Switch#

This example displays Reed Solomon and Ethernet errors for a CPE device connected to LRE 0/1:

Switch#  show controllers lre link monitor errors remote lo0/1

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
Switch #

Related CommandsLoki-kalh#

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 snr

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

link monitor threshold rserr

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

show controllers lre link monitor parameters

Displays the Long-Reach Ethernet (LRE) operating parameter data collected by the link monitor.

show controllers lre link monitor statistics

Displays the Long-Reach Ethernet (LRE) link monitor statistics.


show controllers lre link monitor parameters

Use the show controllers lre link monitor parameters privileged EXEC command to display the Long-Reach Ethernet (LRE) operating parameter data collected by the link monitor. Local monitoring collects data from the LRE switch, and the remote monitoring collects data from attached CPE device.

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

Syntax Description

local

(Optional) Data from the LRE switch controller.

remote(

(Optional) 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 errror information at 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.

The Time heading in the 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.

Using this command without specifying a switch port, displays data for all ports.

Examples

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 

LongReachEthernet0/2: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
00:32:31    2     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:30:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:15:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:00:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:45:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:30:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:15:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:00:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 

LongReachEthernet0/3: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
00:33:31    3      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:30:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:15:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
00:00:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:45:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:30:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:15:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
23:00:31   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 
LongReachEthernet0/4: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
          
LongReachEthernet0/5: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
LongReachEthernet0/6: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
00:34:31    4     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:30:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:15:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
00:00:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:45:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:30:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:15:32   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
23:00:31   15     27  27   0  - 85.9   - 85.9  -  2.0  -  2.0 
          
LongReachEthernet0/7: LRE Link Health Monitor Parameters :
                  SNR            Tx Power        SwAGCGain
 Time    Samples Min Max Err   Min     Max      Min      Max  
-------- ------- --- --- ---  ------- -------  ------- -------
3:00:30   15      0   0   0  - 85.6   - 85.6  -  2.0  -  2.0 

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 snr

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

link monitor threshold snr

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

show controllers lre link monitor errors

Displays Reed-Solomon and Ethenet errors captured by the LRE link monitor.

show controllers lre link monitor statistics

Display the Long-Reach Ethernet (LRE) link monitor statistics.


show controllers lre link monitor statistics

Use the show controllers lre link monitor statistics privileged EXEC command to display the Long-Reach Ethernet (LRE) link monitor statistics. Local monitoring collects data from the LRE switch while the remote monitoring collects data from attached CPE device.

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

Syntax Description

local

(Optional) Data from the LRE switch controller.

remote(

(Optional) 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 errror information at 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.

The Time heading in the output shows the timestamp for the last collection sequence.The Reed Solomon (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 command is run. The Reed Solomon error alarm shows the number of 1 minute intervals that had Reed Solomon errors above the configured threshold.

Using this command without specifying a switch port displays statistics for all ports.

Examples

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 snr

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

link monitor threshold rserr

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

show controllers lre link monitor errors

Displays Reed-Solomon and Ethernet errors captured by the LRE link monitor.

show controllers lre link monitor parameters

Displays the Long-Reach Ethernet (LRE) operating parameter data collected by the link monitor.


show controllers lre log

Use the show controllers lre log privileged EXEC command to display the history of link, configuration, and timer events for a specific Long-Reach Ethernet (LRE) port or for all switch LRE ports.

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

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

Using the show controllers lre log command without specifying a switch LRE port displays the events for all LRE ports on the switch.

The time-stamped and sequentially tagged log entries can be helpful in confirming LRE link drops and configuration changes.

Examples

This is an example of output from the show controllers lre log command that displays events on LRE interface lo0/5:

Switch# show controllers lre log lo0/5

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

Related Commands

Command
Description

clear controllers lre log

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

show controllers lre log level

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


show controllers lre log level

Use the show controllers lre log level privileged EXEC command to display information about the Long-Reach Ethernet (LRE) event log level.

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

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

Using the show controllers lre log level command without specifying a switch LRE port lists the log level for each LRE port on the switch.

Examples

This is an example of output from the show controllers lre log level command that displays the log level on LRE port lo0/1:


Switch> show controllers lre log level lo0/1
Port   Log Level
================
Lo0/1  Logging disabled
Switch#

Related Commands

Command
Description

clear controllers lre log

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 names

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

show controllers lre profile names [ | {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)YJ

This command was introduced.


Usage Guidelines

Table 2-7, Part 1, lists the LRE profiles shipped with the switch, including the upstream and downstream data rates that they support on the LRE link. For more information about LRE profiles and LRE links, refer to the Catalyst 2950 Desktop Switch Software Configuration Guide.


Note Use the rates in Table 2-7, Part 1, only as guidelines. 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 in the table are slightly less than the gross data rates displayed by the show controllers lre profile names privileged EXEC command.


Table 2-7, Part 1 LRE Profiles

Profile Name
LRE Link Downstream Rate (Mbps)
LRE Link Upstream Rate (Mbps)

LRE-998-15-4

16.667

4.688

LRE-997-10-4

12.5

4.688

LRE-2

2.08

2.08

LRE-3

3.13

3.13

LRE-4

4.17

4.17

LRE-4-1

4.167

1.563

LRE-5

5.69

6.25

LRE-7

8.33

8.33

LRE-8

9.38

9.38

LRE-10 (default)

12.5

12.5


Table 2-7, Part 2 LRE Profiles

Profile Name
LRE Link Downstream Rate (Mbps)
LRE Link Upstream Rate (Mbps)

LRE-10-1

12.5

1.56

LRE-10-3

11.38

3.125

LRE-10-5

11.38

6.25

LRE-15

16.667

18.75

LRE-15-1

16.667

1.56

LRE-15-3

16.667

3.125

LRE-15-5

16.667

6.25

LRE-4-1-LL

4.167

1.563

LRE-5LL

5.69

5.69

LRE-10LL

11.38

11.38

LRE-15LL

15.17

17.06


Examples

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


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 

Related Commands LRE-4-1 System-Configured 4.167 1.563

Command
Description

lre profile

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

show controllers lre profile details

Displays detailed information about the profiles and sequences running on an LRE switch.


show controllers lre profile details

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

show controllers lre profile names details [ | {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)YJ

This command was introduced.


Usage Guidelines

Use this command to see the profiles and sequences running on each port. This command also shows profiles and sequences set at the global scope.

Examples

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

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
Lo0/13     LRE-10-3            LRE-10-3            Global Profile
Lo0/14     LRE-10-3            LRE-10-3            Global Profile
Lo0/15     LRE-10-3            LRE-10-3            Global Profile
Lo0/16     LRE-10-3            LRE-10-3            Global Profile
Lo0/17     LRE-10-3            LRE-10-3            Global Profile
Lo0/18     LRE-10-3            LRE-10-3            Global Profile
Lo0/19     LRE-10-3            LRE-10-3            Global Profile
Lo0/20     LRE-10-3            LRE-10-3            Global Profile
Lo0/21     LRE-10-3            LRE-10-3            Global Profile
Lo0/22     LRE-10-3            LRE-10-3            Global Profile
Lo0/23     LRE-10-3            LRE-10-3            Global Profile
Lo0/24     LRE-10-3            LRE-15              Global Profile

Switch#

Related Commands

Command
Description

lre profile

Assigns an LRE profile to all switch LRE ports.

show controllers lre profile names

Displays upstream and downstream data rates for profiles running on an LRE 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]

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.

Examples

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

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 
                 LRE-10-5          12.500        6.250 
                 LRE-10-3          12.500        3.125 
                 LRE-10-1          12.500        1.563 
                 LRE-8              9.375        9.375 
                 LRE-7              8.333        8.333 
                 LRE-5              6.250        6.250 
                 LRE-4              4.167        4.167 
                 LRE-4-1            4.167        1.563 
                 LRE-3              3.125        3.125 
                 LRE-2              2.083        2.083 

Sequence:LRE-SEQ-SYM                Type:System-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15            16.667       18.750 
                 LRE-10            12.500       12.500 
                 LRE-8              9.375        9.375 
                 LRE-7              8.333        8.333 
                 LRE-5              6.250        6.250 
                 LRE-4              4.167        4.167 
                 LRE-3              3.125        3.125 
                 LRE-2              2.083        2.083 

Sequence:LRE-SEQ-SYM-LONGREACH      Type:System-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-5              6.250        6.250 
                 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-SYMLL              Type:System-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15LL          16.667       18.750 
                 LRE-10LL          12.500       12.500 
                 LRE-5LL            6.250        6.250 
          
          
Sequence:LRE-SEQ-UPSTREAM           Type:System-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15            16.667       18.750 
                 LRE-10            12.500       12.500 
                 LRE-8              9.375        9.375 
                 LRE-7              8.333        8.333 
                 LRE-15-5          16.667        6.250 
                 LRE-10-5          12.500        6.250 
                 LRE-5              6.250        6.250 
					 	LRE-4              4.167        4.167 
                 LRE-15-3          16.667        3.125 
                 LRE-10-3          12.500        3.125 
                 LRE-3              3.125        3.125 
                 LRE-2              2.083        2.083 
                 LRE-4-1            4.167        1.563 
          
Sequence:LRE-SEQ-VIDEO-TRANSMIT1    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 
                 LRE-10-5          12.500        6.250 
                 LRE-10-3          12.500        3.125 
                 LRE-10-1          12.500        1.563 

Sequence:LRE-SEQ-VIDEO-TRANSMIT2    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-10            12.500       12.500 
                 LRE-10-5          12.500        6.250 
                 LRE-15-3          16.667        3.125 
                 LRE-10-3          12.500        3.125 
                 LRE-15-1          16.667        1.563 
                 LRE-10-1          12.500        1.563 

Sequence:SEQ3                       Type:User-Configured
          
                  Profile Name    Downstream    Upstream
                                  Rate(Mbps)    Rate(Mbps)
                  --------------  ----------    ----------
                 LRE-15-5          16.667        6.250 
                 LRE-15-3          16.667        3.125 
                 LRE-15-5          16.667        6.250 
                 LRE-15-3          16.667        3.125 
                 LRE-15LL          16.667       18.750 
                 LRE-15-1          16.667        1.563 
                 LRE-3              3.125        3.125 
				 LRE-10            12.500       12.500 

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 {link | profile | psd | sequence [ detail ]} [interface-id] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

(Optional) ID of the switch LRE port.

link

Various parameters and status associated with the LRE link.

profile

Various administrative parameters and status associated with the LRE link.

psd

Power related status.

sequence

Status of profiles in a sequence. Possible status values are converged; waiting on link; executing; and locked.

detail

(Optional) When added to the sequence keyword, it displays additional information about the sequences, such as margins, locked profiles, and convergence times.

| 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 this 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 the show controllers lre status link command is executed.


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, refer to the "LRE Links and LRE Profiles" section in the Catalyst 2950 Desktop Switch Software Configuration Guide.

The sequence and sequence detail parameters 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 command.

Examples

This is an example of output that shows how to display link information for LRE interface lo0/2:

Switch# show controller lre status link lo0/2

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 that shows 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 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

Lo0/3 :
Sequence:LRE-SEQ-SYM              Status:Converged       Attempts:1
Profile:LRE-15                    Convergence Time: 00:01:57
Rate-Selection:Enabled            Locking:Not-Configured
Downstream Margin:0               Upstream Margin:0

Lo0/4 :
Sequence:N/A                      Status:N/A             Attempts:0
Profile:N/A                       Convergence Time: 00:00:00
Rate-Selection:Disabled            Locking:Not-Configured

Related CommandsDownstream Margin:1 Upstream Margin:0

Command
Description

margin

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

show controllers lre profile details

Displays the sequence running on a specific switch LRE port.

show controllers lre profile names

Displays information about the LRE profiles available on the switch.

show controllers lre cpe identity

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

show controllers lre interface-id admin

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

show controllers lre profile names

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 switch Long-Reach Ethernet (LRE) interface.

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

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

Using the show controllers lre version command without specifying a switch LRE port displays the version numbers of all switch LRE interfaces.

Examples

This is an example of output that shows the version information for LRE interface lo0/2:

Switch# show controllers lre version lo0/2
Interface Hw  Sw  Patch   
--------  --- --- -----
Lo0/2     32  B4  50    

Related Commands

Command
Description

show controllers lre cpe identity

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 dot1x

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

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

Syntax Description

interface interface-id

(Optional) Display the 802.1X status for the specified port.

statistics [interface interface-id]

(Optional) Display 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.


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 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 dot1x command:

Switch# show dot1x

Global 802.1X Parameters
    reauth-enabled                no
    reauth-period               3600
    quiet-period                  60
    tx-period                     30
    supp-timeout                  30
    server-timeout                30
    reauth-max                     2
    max-req                        2

802.1X Port Summary
    Port Name                Status      Mode                Authorized
    Gi0/1                    disabled    n/a                 n/a
    Gi0/2                    enabled     Auto (negotiate)    no

    802.1X Port Details
    802.1X is disabled on GigabitEthernet0/1

    802.1X is enabled on GigabitEthernet0/2
      Status                Unauthorized
      Port-control          Auto
      Supplicant            0060.b0f8.fbfb
      Multiple Hosts        Disallowed
      Current Identifier    2

      Authenticator State Machine
        State               AUTHENTICATING
        Reauth Count        1

      Backend State Machine
        State               RESPONSE
        Request Count       0
        Identifier (Server) 2

      Reauthentication State Machine
        State               INITIALIZE

Note In the previous example, the supp-timeout, server-timeout, and reauth-max values in the Global 802.1X Parameters section are not configurable.When relaying a request from the Remote Authentication Dial-In User Service (RADIUS) authentication server to the client, the supp-timeout is the amount of time the switch waits for a response before it resends the request. When relaying a response from the client to the RADIUS authentication server, the server-timeout is the amount of time the switch waits for a reply before it resends the response. The reauth-max parameter is the maximum number of times that the switch tries to authenticate the client without receiving any response before the switch resets the port and restarts the authentication process.


In the 802.1X Port Summary section of the example, the Status column shows whether the port is enabled for 802.1X (the dot1x port-control interface configuration command is set to auto or force-unauthorized). The Mode column shows the operational status of the port; for example, if you configure the dot1x port-control interface configuration command to force-unauthorized, but the port has not transitioned to that state, the Mode column displays auto. If you disable 802.1X, the Mode column displays n/a.

The Authorized column shows the authorization state of the port. For information about port states, refer to the "Configuring 802.1X Port-Based Authentication" chapter in the Catalyst 2950 Desktop Switch Software Configuration Guide.

This is an example of output from the show dot1x interface gigabitethernet0/2 privileged EXEC command. Table 2-8 describes the fields in the example.

Switch# show dot1x interface gigabitethernet0/2

802.1X is enabled on GigabitEthernet0/2 
  Status                Authorized 
  Port-control          Auto 
  Supplicant            0060.b0f8.fbfb 
  Multiple Hosts        Disallowed 
  Current Identifier    3

  Authenticator State Machine 
    State               AUTHENTICATED 
    Reauth Count        0

  Backend State Machine 
    State               IDLE 
    Request Count       0 
    Identifier (Server) 2

  Reauthentication State Machine 
    State               INITIALIZE

Table 2-8 show dot1x interface Field Description

Field
Description

802.1X is enabled on GigabitEthernet0/2

 

Status

Status of the port (authorized or unauthorized). The status of a port appears as authorized if the dot1x port-control interface configuration command is set to auto, and authentication was successful.

Port-control

Setting of the dot1x port-control interface configuration command.

Supplicant

Ethernet MAC address of the client, if one exists. If the switch has not discovered the client, this field displays Not set.

Multiple Hosts

Setting of the dot1x multiple-hosts interface configuration command (allowed or disallowed).

Current Identifier1

Each exchange between the switch and the client includes an identifier, which matches requests with responses. This number is incremented with each exchange and can be reset by the authentication server.

1 This field and the remaining fields in the example show internal state information. For a detailed description of these state machines and their settings, refer to the IEEE 802.1X standard.


This is an example of output from the show dot1x statistics interface gigiabitethernet0/1 command. Table 2-9 describes the fields in the example.

Switch# show dot1x statistics interface gigabitethernet0/1

GigabitEthernet0/1

    Rx: EAPOL     EAPOL     EAPOL     EAPOL     EAP       EAP       EAP
        Start     Logoff    Invalid   Total     Resp/Id   Resp/Oth  LenError
        0         0         0         21        0         0         0

        Last      Last
        EAPOLVer  EAPOLSrc
        1         0002.4b29.2a03

    Tx: EAPOL     EAP       EAP
        Total     Req/Id    Req/Oth
        622       445       0 

Table 2-9 show dot1x statistics Field Descriptions 

Field
Description

RX EAPOL1 Start

Number of valid EAPOL-start frames that have been received

RX EAPOL Logoff

Number of EAPOL-logoff frames that have been received

RX EAPOL Invalid

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

RX EAPOL Total

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

RX EAP2 Resp/ID

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

RX EAP Resp/Oth

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

RX EAP LenError

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

Last EAPOLVer

Protocol version number carried in the most recently received EAPOL frame

LAST EAPOLSrc

Source MAC address carried in the most recently received EAPOL frame

TX EAPOL Total

Number of EAPOL frames of any type that have been sent

TX EAP Req/Id

Number of EAP-request/identity frames that have been sent

TX EAP Req/Oth

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

1 EAPOL = Extensible Authentication Protocol over LAN

2 EAP = Extensible Authentication Protocol


Related Commands

Command
Description

dot1x default

Resets the global 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} [ | {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).

| 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 env all command:

Switch> show env all
FAN 1 is OK

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

Switch# show env fan
FAN 1 is FAULTY

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 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 errdisable recovery command:

Switch> show errdisable recovery
ErrDisable Reason    Timer Status
-----------------    --------------
udld                 Enabled
bpduguard            Enabled
channel-misconfig    Enabled
pagp-flap            Enabled
dtp-flap             Enabled
link-flap            Enabled
psecure-violation    Enabled
gbic-invalid         Enabled

Timer interval:300 seconds

Interfaces that will be enabled at the next timeout:

Interface    Errdisable reason    Time left(sec)
---------    -----------------    --------------
Gi0/4           link-flap             279 

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

Syntax Description

channel-group-number

(Optional) Number of the channel group. Valid numbers range from 1 to 6.

brief

Display a summary of EtherChannel information.

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.


Usage Guidelines

If you do not specify a channel-group, all channel groups 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 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)     Fa0/6(Pd)		 Fa0/15(P)

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

Switch> show etherchannel 1 brief
Group state = L2
Ports: 1   Maxports = 8
Port-channels: 1 Max Port-channels = 1

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 2-10 describes the fields in the show file descriptors command output.

Table 2-10 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 2-11 lists the possible file types for the previous example.

Table 2-11 Possible File Types 

Field
Description

ascii text

Configuration file or other text file.

coff

Runnable 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 2-12 describes the fields in the show file systems command output. Table 2-13 lists the file system types. Table 2-14 lists the file system flags.

Table 2-12 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 2-13 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 2-14 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 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 | [cpe [port port-id]]| description | etherchannel | media | media [interface-id] pruning | stats | status [err-disabled] | switchport | trunk] [ | {begin | exclude | include} expression]

Syntax Description

interface-id

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

vlan vlan-id

(Optional) VLAN ID. The valid VLAN range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

accounting

(Optional) Display interface accounting information.

cpe

(Optional) Display link status, speed, and duplex of all the customer premises equipment (CPE) Ethernet ports.

port port-id

(Optional) Display only the designated CPE Ethernet port. Valid values are 1 to 4.

description

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

etherchannel

(Optional) Display interface EtherChannel information.

media

(Optional) Display the type of media connection.

media interface-id

(Optional) Display the type of media connection on a specific interface.

pruning

(Optional) Display interface trunk VTP pruning information.

stats

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

status

(Optional) Display the status of the interface.

err-disabled

(Optional) Display interfaces in error-disabled state.

switchport

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

trunk

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

| 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

Additional keywords were added to support LRE switches.


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 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 gigabitethernet0/1 command:


Switch# show interfaces gigabitethernet0/1 
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 gigabitethernet0/2 description command when the interface has been described as Connects to Marketing by using the description interface configuration command.

Switch# show interfaces gigabitethernet0/2 description
Interface Status         Protocol Description
G10/2 up             down     Connects to Marketing

This is an exampleof output from the show interfaces fastethernet0/1 pruning command 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. The prefix a in the Duplex and Speed columns shows the result of autonegotiation for that function.

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
Fa0/7                      notconnect   1            auto   auto 10/100BaseTX
Fa0/8                      connected    1          a-full  a-100 10/100BaseTX
Fa0/9                      disabled     1            auto   auto 10/100BaseTX
Fa0/10                     notconnect   5            auto    100 10/100BaseTX
Fa0/11                     disabled     1            auto   auto 10/100BaseTX
Fa0/12                     disabled     1            auto   auto 10/100BaseTX
Gi0/1                      disabled     1            auto   auto unknown
Gi0/2                      notconnect   1            auto   auto unknown
Po1                        notconnect   1            auto   auto

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

Switch# show interfaces gi0/1 status

Port    Name 								Status		Vlan 			 Duplex  Speed Type
Gi0/1                      connected    1          a-full  a-100 10/100/1000BasX
Switch#

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

switch#show interfaces fa0/15 status err-disabled 

Port    Name               Status       Reason
Fa0/15                     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 switchport command for a single interface. Table 2-15 describes the fields in the output.

Switch# show interfaces gigabitethernet0/1 switchport
Name:Fa0/1
Switchport:Enabled
Administrative Mode:static access
Operational Mode:down
Administrative Trunking Encapsulation:dot1q
Negotiation of Trunking:Off
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001

Protected:false

Voice VLAN:dot1p (Inactive)
Appliance trust:5

This is an example of output from the show interfaces command for port 5 on an LRE switch:

Switch# show interfaces lo0/5
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 lo0/2 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 port 5 on a CPE device:

Switch# show interfaces lo0/2  cpe port 5

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


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

Switch# show interfaces gi0/1 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

Switch#

Table 2-15 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

Operation Trunking Encapsulation

Negotiation of Trunking

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

Access Mode VLAN

Displays the VLAN ID to which the port is configured.

Trunking Native Mode VLAN

Trunking VLANs Enabled

Trunking VLANs Active

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

Pruning VLANs Enabled

Lists the VLANs that are pruning-eligible.

Protected

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

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 example shows 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 example shows output from the show interfaces fastethernet0/1 trunk command. 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

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 [broadcast | errors | multicast | trunk | unicast] [ | {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. Valid IDs are from 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1001 when the standard software image (SI) is installed. Do not enter leading zeros.

broadcast

(Optional) Display discarded broadcast traffic.

errors

(Optional) Display error counters.

multicast

(Optional) Display discarded multicast traffic.

trunk

(Optional) Display trunk counters.

unicast

(Optional) Display discarded unicast traffic.

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

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 interfaces counters command. It displays all the counters for the switch.

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

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

Switch# show interfaces counters broadcast
Port      BcastSuppDiscards
Gi0/1                     1
Gi0/2                     0

This is an example of output from the show interfaces gigabitethernet0/1 counters broadcast command. It displays the dropped broadcast traffic for an interface.

Switch# show interfaces gigabitethernet0/1 counters broadcast

Port      BcastSuppDiscards
Gi0/1                     0 

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

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

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

Switch# show interfaces counters multicast

Port      McastSuppDiscards
Gi0/1                     0
Gi0/2                     0

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

Switch# show interfaces counters trunk

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

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

Switch# show interfaces counters unicast

Port      UcastSuppDiscards
Gi0/1                  6872
Gi0/2                     0

Related Commands

Command
Description

show interfaces

Displays interface characteristics.

speed

Configures broadcast, multicast, and unicast storm control for an interface.


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 from 1 to 199 and from 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 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 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 igmp snooping

Use the show ip igmp snooping privileged EXEC command to display the Internet Group Management Protocol (IGMP) snooping configuration of the switch or the VLAN.

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

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

Syntax Description

vlan vlan-id

(Optional) Keyword and variable to specify a VLAN; valid values are 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1001 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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

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

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 

vlan 1
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is enabled on this Vlan
  IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan
vlan 2
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is enabled on this Vlan
  IGMP snooping mrouter learn mode is cgmp on this Vlan
vlan 3
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is disabled on this Vlan
  IGMP snooping mrouter learn mode is cgmp on this Vlan
vlan 4
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is disabled on this Vlan 
IGMP snooping mrouter learn mode is cgmp on this Vlan
vlan 5
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is disabled on this Vlan
  IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan
vlan 33
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is disabled on this Vlan
  IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan 

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

Switch# show ip igmp snooping vlan 1

vlan 1
----------
  IGMP snooping is globally enabled
  IGMP snooping is enabled on this Vlan
  IGMP snooping immediate-leave is enabled on this Vlan
  IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan 

Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping.

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 mrouter

Use the show ip igmp snooping mrouter privileged EXEC command to display information on dynamically learned and manually configured multicast router ports.

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

Syntax Description

vlan vlan-id

(Optional) Keyword and variable to specify a VLAN; valid values are 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1001 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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 can also use the show mac address-table multicast command to display entries in the MAC address table for a VLAN that has Internet Group Management Protocol (IGMP) snooping enabled.

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 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) 

Related Commands

Command
Description

ip igmp snooping

Enables IGMP snooping.

ip igmp snooping vlan

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 lre upgrade binaries

show lre upgrade binaries [ | {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

12.1(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.

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

Related Commands

Command
Description

show lre upgrade status

 

show lre upgrade version

Displays the versions of binaries on local and remote ends on all ports.


show lre upgrade status

show lre upgrade status [ | {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

12.1(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, 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.

Examples

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
Lo0/5:
   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
Lo0/6:
   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
Lo0/7:
   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
Lo0/8:
   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
Lo0/9:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/9
Lo0/10:
   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
Lo0/11:
   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
Lo0/12:
   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
Lo0/13:
   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
Lo0/14:
   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
Lo0/15:
   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
Lo0/16:
   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
Lo0/17:
   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
Lo0/18:
   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
Lo0/19:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO585-LRE_vdslsngl_52.00.00 new:CISCO585-LRE_vdslsngl_51.00.00
   Status:Pending
   rmt curr:CISCO585-LRE_MC8051appl_00.30.00 new:CISCO585-LRE_MC8051appl_00.30.00
   Status:None
   rmt curr:CISCO585-LRE_MC8051boot_00.30.00 new:CISCO585-LRE_MC8051boot_00.30.00
   Status:None
Lo0/20:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/20
Lo0/21:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/21
Lo0/22:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/22
Lo0/23:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/23
Lo0/24:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/24
Switch#

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
   Status:Pending
   rmt curr:CISCO575-LRE_vdslsngl_52.00.00 new:CISCO575-LRE_vdslsngl_52.00.00
   Status:Active
   10 HHMM:0000, Attempt:001
Lo0/5:
   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
Lo0/6:
   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
Lo0/7:
   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
Lo0/8:
   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
Lo0/9:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/9
Lo0/10:
   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
   08 HHMM:0000, Attempt:001
Lo0/11:
   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
   07 HHMM:0000, Attempt:001
Lo0/12:
   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
   06 HHMM:0000, Attempt:003
Lo0/13:
   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
   08 HHMM:0000, Attempt:001
Lo0/14:
   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
   08 HHMM:0000, Attempt:001
Lo0/15:
   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
   08 HHMM:0000, Attempt:001
Lo0/16:
   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
   05 HHMM:0000, Attempt:003
Lo0/17:
   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
   07 HHMM:0000, Attempt:001
Lo0/18:
   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
   07 HHMM:0000, Attempt:001
Lo0/19:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   rmt curr:CISCO585-LRE_vdslsngl_52.00.00 new:CISCO585-LRE_vdslsngl_51.00.00
   Status:Active
   22 HHMM:0000, Attempt:001
   rmt curr:CISCO585-LRE_MC8051appl_00.30.00 new:CISCO585-LRE_MC8051appl_00.30.00
   Status:None
   rmt curr:CISCO585-LRE_MC8051boot_00.30.00 new:CISCO585-LRE_MC8051boot_00.30.00
   Status:None
Lo0/20:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/20
Lo0/21:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/21
Lo0/22:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/22
Lo0/23:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/23
Lo0/24:
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 new:CISCO2950-LRE_vdsloctl_02.60.00
   Status:Pending
   No remote devices on Lo0/24

Related Commands

Command
Description

show lre upgrade binaries

 

show lre upgrade version

Displays the versions of binaries on local and remote ends on all ports.


show lre upgrade version

show lre upgrade 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

Privileged EXEC

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines

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 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
Lo0/6:
   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
Lo0/7:
   CPE:Family CISCO575-LRE, Model Cisco575-LRE   , Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/8:
   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
Lo0/9:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/10:
   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
Lo0/11:
   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
Lo0/12:
   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
Lo0/13:
   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
Lo0/14:
   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
Lo0/15:
   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
Lo0/16:
   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
Lo0/17:
   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
Lo0/18:
   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
Lo0/19:
   CPE:Family CISCO585-LRE, Model CISCO585-LRE ¯¯, Rev A0
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
   rmt curr:CISCO585-LRE_vdslsngl_51.00.00 cfg:CISCO585-LRE_vdslsngl_51.00.00
   rmt curr:CISCO585-LRE_MC8051appl_00.30.00 cfg:CISCO585-LRE_MC8051appl_00.30.00
   rmt curr:CISCO585-LRE_MC8051boot_00.30.00 cfg:CISCO585-LRE_MC8051boot_00.30.00
Lo0/20:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/21:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/22:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/23:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Lo0/24:
   CPE:Family NONE, Model NONE, Rev NONE
   lcl curr:CISCO2950-LRE_vdsloctl_02.60.00 cfg:CISCO2950-LRE_vdsloctl_02.60.00
Switch#

Related Commands rmt curr:CISCO575-LRE_vdslsngl_52.00.00 cfg:CISCO575-LRE_vdslsngl_52.00.00


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 101

This is an example of output from the show mac access-group interface gigabitethernet 0/2 command:

Switch# show mac access-group interface gigabitethernet 0/2
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 Release 12.1(11)EA1, the show mac address-table command replaces the show mac-address-table command (with the hyphen). The show mac-address-table command (with the hyphen) will become obsolete in a future release.


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. Valid IDs are from
1 to 4094 when the enhanced software image (EI) is installed and 1 to 1001 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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(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 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 Beginning with Release 12.1(11)EA1, the show mac address-table multicast command replaces the show mac-address-table multicast command (with the hyphen). The show mac-address-table multicast command (with the hyphen) will become obsolete in a future release.


Syntax Description

vlan vlan-id

(Optional) Specify a VLAN; valid values are 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros. (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.


Defaults

This command has no default setting.

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    Fa0/11
   1    0100.5e01.1111  USER    Fa0/5, Fa0/6, Fa0/7, Fa0/11

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 Release 12.1(11)EA1, the show mac address-table notification command replaces the show mac-address-table notification command (with the hyphen). The show mac-address-table notification command (with the hyphen) will become obsolete in a future release.


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.


Defaults

This command has no default setting.

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 mask 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 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 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, their settings, and the number of policers unassigned (available only when the switch is running the enhanced software 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 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 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

Related Commandstrust device:nonetrust device:cisco-phone

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 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 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 | 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.

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.


Usage Guidelines

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

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

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 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 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 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 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 gigabitethernet0/2 command:

Switch# show mvr interface gigabitethernet0/2
Type: RECEIVER Status: ACTIVE Immediate Leave: DISABLED 

This is an example of output from the show mvr interface fastethernet0/6 member command:

Switch# show mvr interface fastethernet0/6 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 ports that are 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 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 only applies to receiver ports. All source ports are members of all multicast groups.

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 mvr members command:

Switch# show mvr members
MVR Group IP    Status          Members
------------    ------          -------
239.255.0.1     ACTIVE          Gi0/1(d), Gi0/2(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), Gi0/2(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. Valid numbers range from 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 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 pagp 1 counters command:

Switch> show pagp 1 counters
           Information        Flush
Port       Sent   Recv     Sent   Recv
--------------------------------------
Channel group: 1
  Gi0/1    45     42       0      0 
  Gi0/2    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
Gi0/1     SC    U6/S7   H       30s      1        128        Any      16
Gi0/2     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.
Gi0/1     device-p2            0002.4b29.4600   Gi0/1        9s SC      10001 
Gi0/2     device-p2            0002.4b29.4600   Gi0/2       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 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 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 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 policytest command:

Switch> show policy-map policytest
 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 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
     Fa0/5           15            5             0            Restrict
     Fa0/11          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 fastethernet0/2 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    Fa0/11     25 (I)
   1    0011.0011.0002    SecureConfigured    Fa0/11     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 fastethernet0/5 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 remote lre

Use the show remote lre priviledged exec command to display the switch registers on a customer premises equipment (CPE) device connected on an Long-Reach Ethernet (LRE) link.

show remote lre interface-id switch address length value [ | {begin | exclude | include} expression]

Syntax Description

interface-id

ID of the LRE port.

address

Register address. Valid values are between 0 and 65535.

value

The number of bytes being read.

| 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.


Defaults

A default is not defined.

Command Modes

Privileged Exec

Command History

Release
Modification

12.1(11)YJ

This command was introduced.


Usage Guidelines


Caution Use this command only under the direction of a technical support representative. Setting a CPE device switch address while the switch is functioning in a network can disrupt network operation. Only technical personnel who have access to source code and detailed memory maps can interpret the data displayed by this command.

This command is supported when the interface is connected to a Cisco 585 LRE CPE. This operation can fail if the LRE link is not stable.

Examples

No examples are provided because this command needs to be run with information from technical support personnel who have access to source code and detailed memory maps.

Related Commands

Command
Description

show access-lists

Configures a switch register on a CPE device connected through an LRE link.


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 2-16 describes the possible output.

Switch# show rps
GREEN

Table 2-16 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. For vlan-id, the range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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 are not displayed, but the lines that contain Output are displayed.

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 907
!
vlan 920
!
vlan 1025
!
vlan 2000
!
vlan 2001
end

Related Commands

Command
Description

show running-config vlan

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 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 (only available in privileged EXEC mode).

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 (only available in privileged EXEC mode).

detail [active]

(Optional) Display a detailed summary of interface information (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 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 valid VLAN range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros. The valid port-channel range is 1 to 6.

mst [configuration | instance-id] [detail | interface interface-id [detail]]

These keywords and options are available only if your switch is running the EI.

(Optional) Display the multiple spanning-tree (MST) region configuration and status (all options only available in privileged EXEC mode).

Valid interfaces include physical ports, VLANs, and port channels. The valid VLAN range is 1 to 4094; do not enter leading zeros. The valid 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 options 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 (only available in privileged EXEC mode).

uplinkfast

(Optional) Display spanning-tree UplinkFast status (only available in privileged EXEC mode).

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 the specified VLAN (only available in privileged EXEC mode). The range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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.


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 enter | exclude output, the lines that contain output are not displayed, but the lines that contain Output are displayed.

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    32768
             Address     0001.4297.e000
             Cost        57
             Port        1 (GigabitEthernet0/1)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
             Address     0002.4b29.7a00
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface        Port ID                     Designated                Port ID
Name             Prio.Nbr      Cost Sts      Cost Bridge ID            Prio.Nbr
---------------- -------- --------- --- --------- -------------------- --------
Gi0/1            128.1           19 FWD        38 32768 0030.9441.62c1 128.25
Gi0/2            128.2           19 FWD        57 32769 0002.4b29.7a00 128.2
Po1              128.65          19 FWD        57 32769 0002.4b29.7a00 128.65 

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 0002.4b29.7a00
 Configured hello time 2, max age 20, forward delay 15
 Current root has priority 32768, address 0001.4297.e000
 Root port is 1 (GigabitEthernet0/1), cost of root path is 57
 Topology change flag not set, detected flag not set
 Number of topology changes 2 last change occurred 2d18h ago
         from Port-channel1
 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 (GigabitEthernet0/1) of VLAN0001 is forwarding
  Port path cost 19, Port priority 128, Port Identifier 128.1.
  Designated root has priority 32768, address 0001.4297.e000
  Designated bridge has priority 32768, address 0030.9441.62c1
  Designated port id is 128.25, designated path cost 38
  Timers: message age 4, forward delay 0, hold 0
  Number of transitions to forwarding state: 1
  BPDU: sent 2, received 120638

<output truncated>

This is an example of output from the show spanning-tree interface fastethernet 0/1 command:

Switch> show spanning-tree interface fastethernet0/1

Vlan             Port ID                     Designated                Port ID
Name             Prio.Nbr      Cost Sts      Cost Bridge ID            Prio.Nbr
---------------- -------- --------- --- --------- -------------------- --------
VLAN0001         128.1           19 FWD        38 32768 0030.9441.62c1 128.25

This is an example of output from the show spanning-tree summary command:

Switch> show spanning-tree summary
Root bridge for: none.
Extended system ID is enabled
PortFast BPDU Guard is disabled
EtherChannel misconfiguration guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Default pathcost method used is short 

Name                 Blocking Listening Learning Forwarding STP Active
-------------------- -------- --------- -------- ---------- ----------
VLAN1                13       0         0        1          14
VLAN2                1        0         0        1          2
VLAN3                1        0         0        1          2

<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         1-9,21-4094
1         10-20
----------------------------

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 root forwarding
Edge port: no             (default)        port guard : none        (default)
Link type: point-to-point (auto)           bpdu filter: disable     (default)
Boundary : boundary       (STP)            bpdu guard : disable     (default)
Bpdus sent 5, received 74

Instance role state cost      prio vlans mapped
-------- ---- ----- --------- ---- --------------------------------------------
0        root FWD   200000    128  1,12,14-4094

This is an example of output from the show spanning-tree mst 0 command:

Switch# show spanning-tree mst 0
###### MST00        vlans mapped: 1-9,21-4094
Bridge      address 0002.4b29.7a00  priority  32768 (32768 sysid 0)
Root        address 0001.4297.e000  priority  32768 (32768 sysid 0)
            port    Gi0/1           path cost 200038
IST master *this switch
Operational hello time 2, forward delay 15, max age 20, max hops 20
Configured  hello time 2, forward delay 15, max age 20, max hops 20

Interface            role state cost      prio type
-------------------- ---- ----- --------- ---- --------------------------------
GigabitEthernet0/1   root FWD   200000    128  P2P bound(STP)
GigabitEthernet0/2   desg FWD   200000    128  P2P bound(STP)
Port-channel1        desg FWD   200000    128  P2P bound(STP)

Related Commands

Command
Description

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:

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 2-17 lists the show storm-control field descriptions.

Table 2-17 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

speed

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 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 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 when the enhanced software image (EI) is installed and 1 to 1001 when the standard software image (SI) is installed. Do not enter leading zeros.

| 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 2-18 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 2-18 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 gi0/1
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 (global configuration)

Enables UDLD on all ports on the switch.

udld (interface configuration)

Enables UDLD on a 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:

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

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 DescriptionN

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. For vlan-id, the range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

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.



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 are not displayed, but the lines that contain Output are displayed.

Examples

This is an example of output from the show vlan command. Table 2-19 describes each field in the display.

Switch> show vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa0/1, Fa0/2, Fa0/5, Fa0/7
                                                Fa0/8, Fa0/9, Fa0/11, Fa0/12
                                                Gi0/1, Gi0/2
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 2-19 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 through 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, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10, Fa0/11, Fa0/12
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 VLAN2005                         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 when the EI is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

vlan (VLAN configuration)

Configures VLAN characteristics in the VLAN database. Only available for normal-range VLANs (VLAN IDs 1 to 1005). Do not enter leading zeros.


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 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 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 2-20 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 2-20 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.


Usage Guidelines

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

Examples

This is an example of output from the show vtp counters command. Table 2-21 describes each field in the display.

Switch> show vtp counters

VTP statistics:
Summary advertisements received    : 38
Subset advertisements received     : 0
Request advertisements received    : 0
Summary advertisements transmitted : 13
Subset advertisements transmitted  : 3
Request advertisements transmitted : 0
Number of config revision errors   : 0
Number of config digest errors     : 0
Number of V1 summary errors        : 0

VTP pruning statistics:

Trunk            Join Transmitted Join Received    Summary advts received from
                                                   non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Fa0/9               827              824              0
Fa0/10              827              823              0 
Fa0/11              827              823              0

Table 2-21 show vtp counters Field Descriptions 

Field
Description

Summary advertisements received

Number of summary advertisements received by this switch on its trunk ports. Summary advertisements contain the management domain name, the configuration revision number, the update timestamp and identity, the authentication checksum, and the number of subset advertisements to follow.

Subset advertisements received

Number of subset advertisements received by this switch on its trunk ports. Subset advertisements contain all the information for one or more VLANs.

Request advertisements received

Number of advertisement requests received by this switch on its trunk ports. Advertisement requests normally request information on all VLANs. They can also request information on a subset of VLANs.

Summary advertisements transmitted

Number of summary advertisements sent by this switch on its trunk ports. Summary advertisements contain the management domain name, the configuration revision number, the update timestamp and identity, the authentication checksum, and the number of subset advertisements to follow.

Subset advertisements transmitted

Number of subset advertisements sent by this switch on its trunk ports. Subset advertisements contain all the information for one or more VLANs.

Request advertisements transmitted

Number of advertisement requests sent by this switch on its trunk ports. Advertisement requests normally request information on all VLANs. They can also request information on a subset of VLANs.

Number of configuration revision errors

Number of revision errors.

Whenever you define a new VLAN, delete an existing one, suspend or resume an existing VLAN, or modify the parameters on an existing VLAN, the configuration revision number of the switch increments.

Revision errors increment whenever the switch receives an advertisement whose revision number matches the revision number of the switch, but the MD5 digest values do not match. This error means that the VTP password in the two switches is different or that the switches have different configurations.

These errors means that the switch is filtering incoming advertisements, which causes the VTP database to become unsynchronized across the network.

Number of configuration digest errors

Number of MD5 digest errors.

Digest errors increment whenever the MD5 digest in the summary packet and the MD5 digest of the received advertisement calculated by the switch do not match. This error usually means that the VTP password in the two switches is different. To solve this problem, make sure the VTP password on all switches is the same.

These errors mean that the switch is filtering incoming advertisements, which causes the VTP database to become unsynchronized across the network.

Number of V1 summary errors

Number of version 1 errors.

Version 1 summary errors increment whenever a switch in VTP V2 mode receives a VTP version 1 frame. These errors mean that at least one neighboring switch is either running VTP version 1 or VTP version 2 with V2-mode disabled. To solve this problem, change the configuration of the switches in VTP V2-mode to disabled.

Join Transmitted

Number of VTP pruning messages sent on the trunk.

Join Received

Number of VTP pruning messages received on the trunk.

Summary Advts Received from non-pruning-capable device

Number of VTP summary messages received on the trunk from devices that do not support pruning.


This is an example of output from the show vtp status command. Table 2-22 describes each field in the display.

Switch> show vtp status

VTP Version                     : 2
Configuration Revision          : 0
Maximum VLANs supported locally : 250
Number of existing VLANs        : 5
VTP Operating Mode              : Server
VTP Domain Name                 :
VTP Pruning Mode                : Disabled
VTP V2 Mode                     : Disabled
VTP Traps Generation            : Disabled
MD5 digest                      : 0xBF 0x86 0x94 0x45 0xFC 0xDF 0xB5 0x70
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 172.20.135.196 on interface Vl1 (lowest numbered VLAN interface found) 

Table 2-22 show vtp status Field Descriptions 

Field
Description

VTP Version

Displays the VTP version operating on the switch. By default, the switch implements version 1 but can be set to version 2.

Configuration Revision

Current configuration revision number on this switch.

Maximum VLANs Supported Locally

Maximum number of VLANs supported locally.

Number of Existing VLANs

Number of existing VLANs.

VTP Operating Mode

Displays the VTP operating mode, which can be server, client, or transparent.

Server: a switch in VTP server mode is enabled for VTP and sends advertisements. You can configure VLANs on it. The switch guarantees that it can recover all the VLAN information in the current VTP database from nonvolatile RAM (NVRAM) after reboot. By default, every switch is a VTP server.

Note The switch automatically changes from VTP server mode to VTP client mode if it detects a failure while writing the configuration to NVRAM and cannot return to server mode until the NVRAM is functioning.

Client: a switch in VTP client mode is enabled for VTP, can send advertisements, but does not have enough nonvolatile storage to store VLAN configurations. You cannot configure VLANs on it. When a VTP client starts up, it does not send VTP advertisements until it receives advertisements to initialize its VLAN database.

Transparent: a switch in VTP transparent mode is disabled for VTP, does not send or learn from advertisements sent by other devices, and cannot affect VLAN configurations on other devices in the network. The switch receives VTP advertisements and forwards them on all trunk ports except the one on which the advertisement was received.

VTP Domain Name

Name that identifies the administrative domain for the switch.

VTP Pruning Mode

Displays whether pruning is enabled or disabled. Enabling pruning on a VTP server enables pruning for the entire management domain. Pruning restricts flooded traffic to those trunk links that the traffic must use to access the appropriate network devices.

VTP V2 Mode

Displays if VTP version 2 mode is enabled. All VTP version 2 switches operate in version 1 mode by default. Each VTP switch automatically detects the capabilities of all the other VTP devices. A network of VTP devices should be configured to version 2 only if all VTP switches in the network can operate in version 2 mode.

VTP Traps Generation

Displays whether VTP traps are sent to a network management station.

MD5 Digest

A 16-byte checksum of the VTP configuration.

Configuration Last Modified

Displays the date and time of the last configuration modification. Displays the IP address of the switch that caused the configuration change to the database.


Related Commands

Command
Description

clear vtp counters

Clears the VTP and pruning counters.

vtp (global configuration)

Configures the VTP filename, interface name, domain name, and mode. You can save configuration resulting from this command in the switch configuration file.

vtp (privileged EXEC)

Configures the VTP password, pruning, and version.

vtp (VLAN configuration)

Configures the VTP domain name, password, pruning, and mode.


show wrr-queue bandwidth

Use the show wrr-queue bandwidth user EXEC command to display the weighted round-robin (WRR) bandwidth allocation for the four class of service (CoS) priority queues.

show wrr-queue bandwidth [ | {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 wrr-queue bandwidth command:

Switch> show wrr-queue bandwidth 

WRR Queue  :   1   2   3   4

Bandwidth  :  10  20  30  40 

Related Commands

Command
Description

show wrr-queue cos-map

Displays the mapping of the CoS to the priority queues.

wrr-queue cos-map

Assigns WRR weights to the four CoS priority queues.

wrr-queue cos-map

Assigns CoS values to the CoS priority queues.


show wrr-queue cos-map

Use the show wrr-queue cos-map user EXEC command to display the mapping of the class of service (CoS) priority queues.

show wrr-queue cos-map [ | {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 wrr-queue cos-map command:

Switch> show wrr-queue cos-map 

CoS Value      :  0  1  2  3  4  5  6  7

Priority Queue :  1  1  2  2  3  3  4  4 

Related Commands

Command
Description

show wrr-queue bandwidth

Displays the WRR bandwidth allocation for the four CoS priority queues.

wrr-queue bandwidth

Assigns weighted round-robin (WRR) weights to the four CoS priority queues.

wrr-queue cos-map

Assigns CoS values to the CoS priority queues.


shutdown

Use the shutdown interface configuration command to disable a port and to shut down the management VLAN. On an LRE model, this command disables the LRE interface by deactivating the MAC interface and the LRE chipset transmitter. Use the no form of this command to enable a disabled port or to activate the management VLAN.

shutdown

no shutdown

Syntax Description

This command has no arguments or keywords.

Command Modes

Interface configuration

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

The shutdown command for a port causes it to stop forwarding. You can enable the port with the no shutdown command.

The no shutdown command has no effect if the port is a static-access port assigned to a VLAN that has been deleted, suspended, or shut down. The port must first be a member of an active VLAN before it can be re-enabled.

Only one management VLAN interface can be active at a time. The remaining VLANs are shut down. In the show running-config command output, the active management VLAN interface is the one without the shutdown command displayed.

On LRE switches, this command disables the LRE transmitter of an LRE interface. Under some circumstances, the power emitted by switch LRE ports can affect other switch LRE ports. We recommend that ports that are not connected to CPE devices be shut down by using this command. Also use this command to disable access to the switch from a particular port.

Examples

This example shows how to disable fixed Fast Ethernet port 0/8 and how to re-enable it:

Switch(config)# interface fastethernet0/8
Switch(config-if)# shutdown

Switch(config-if)# no shutdown

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

shutdown vlan

Use the shutdown vlan global configuration command to shut down (suspend) local traffic on the specified VLAN. Use the no form of this command to restart local traffic on the VLAN.

shutdown vlan vlan-id

no shutdown vlan vlan-id

Syntax Description

vlan-id

ID of the VLAN to be locally shut down. Valid IDs are from 2 to 1001. VLANs defined as default VLANs under the VLAN Trunking Protocol (VTP), as well as extended-range VLANs (greater than 1005) cannot be shut down. The default VLANs are 1 and 1002 to 1005. Do not enter leading zeros.


Defaults

No default is defined.

Command Modes

Global configuration

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.


Usage Guidelines

The shutdown vlan command does not change the VLAN information in the VTP database. It shuts down traffic locally, but the switch still advertises VTP information.

Examples

This example shows how to shutdown traffic on VLAN 2:

Switch(config)# shutdown vlan 2

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

Related Commands

Command
Description

shutdown (config-vlan mode)

Shuts down local traffic on the VLAN when in config-VLAN mode (accessed by the vlan vlan-id global configuration command).

vlan (VLAN configuration)

Enables config-vlan mode.

vlan database

Enters VLAN configuration mode.


snmp-server enable traps

Use the snmp-server enable traps global configuration command to enable the switch to send Simple Network Management Protocol (SNMP) notification for various trap types to the network management system (NMS). Use the no form of this command to return to the default setting.

snmp-server enable traps [c2900 | cluster | config | entity | hsrp | mac-notification | rtr | snmp | syslog | vlan-membership | vtp]

no snmp-server enable traps [c2900 | cluster | config | entity | hsrp | mac-notification | rtr | snmp | syslog | vlan-membership | vtp]


Note Though visible in the command-line help strings, the snmp-server enable informs command has no funtionality. To enable sending SNMP inform notifications, use the snmp-server enable traps command combined with the snmp-server host host-addr informs command.


Syntax Description

c2900

(Optional) Enable SNMP configuration traps.

cluster

(Optional) Enable cluster traps.

config

(Optional) Enable SNMP configuration traps.

entity

(Optional) Enable SNMP entity traps.

hsrp

(Optional) Enable Hot Standby Router Protocol (HSRP) traps.

mac-notification

(Optional) Enable MAC address notification traps.

rtr

(Optional) Enable SNMP Response Time Reporter traps.

snmp

(Optional) Enable SNMP traps.

syslog

(Optional) Enable SNMP syslog traps.

vlan-membership

(Optional) Enable SNMP VLAN membership traps.

vtp

(Optional) Enable VLAN Trunking Protocol (VTP) traps.


Defaults

The sending of SNMP traps is disabled.

Command Modes

Global configuration

Command History

Release
Modification

12.1(6)EA2

This command was introduced.

12.1(9)EA1

The vlan-membership keyword was added.


Usage Guidelines

Specify the host (NMS) that receives the traps by using the snmp-server host global configuration command. If no trap types are specified, all trap types are sent.

Use the snmp-server enable traps command to enable sending of traps or informs, when supported.


Note Informs are not supported in SNMPv1.


To enable more than one type of trap, you must issue a separate snmp-server enable traps command for each trap type.

Examples

This example shows how to send VTP traps to the NMS:

Switch(config)# snmp-server enable traps vtp

You can verify your setting by entering the show vtp status privileged EXEC or the show running-config privileged EXEC command.

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.

snmp-server host

Specifies the host that receives SNMP traps.


snmp-server host

Use the snmp-server host global configuration command to specify the recipient (host) of a Simple Network Management Protocol (SNMP) notification operation. Use the no form of this command to remove the specified host.

snmp-server host host-addr [informs | traps] [version {1 | 2c | 3 [auth | noauth | priv]}] community-string [c2900 | cluster | config | entity | hsrp | mac-notification | rtr | snmp | tty | udp-port | vlan-membership | vtp]

no snmp-server host host-addr [informs | traps] [version {1 | 2c | 3 [auth | noauth | priv]}] community-string [c2900 | cluster | config | entity | hsrp | mac-notification | rtr | snmp | tty | udp-port | vlan-membership | vtp]

Syntax Description

host-addr

Name or Internet address of the host (the targeted recipient).

informs | traps

(Optional) Send SNMP traps or informs to this host.

version 1 | 2c | 3

(Optional ) Version of SNMP used to send the traps.

These keywords are supported:

1—SNMPv1. This option is not available with informs.

2c—SNMPv2C.

3—SNMPv3. These three optional keywords can follow the version 3 keyword:

auth (Optional). Enables Message Digest 5 (MD5) and Secure Hash Algorithm (SHA) packet authentication.

noauth (Default). The noAuthNoPriv security level. This is the default if the [auth | noauth | priv] keyword choice is not specified.

priv (Optional). Enables Data Encryption Standard (DES) packet encryption (also called privacy).

Note The priv keyword is available only when the enhanced crypto (encrypted) software image is installed.

community-string

Password-like community string sent with the notification operation. Though you can set this string by using the snmp-server host command, we recommend that you define this string by using the snmp-server community global configuration command before using the snmp-server host command.

c2900

(Optional) Send SNMP switch traps.

cluster

(Optional) Send cluster member status traps.

config

(Optional) Send SNMP configuration traps.

entity

(Optional) Send SNMP entity traps.

hsrp

(Optional) Send Hot Standby Router Protocol (HSRP) traps.

mac-notification

(Optional) Send MAC notification traps.

rtr

(Optional) Send SNMP Response Time Reporter traps.

snmp

(Optional) Send SNMP-type traps.

tty

(Optional) Send Transmission Control Protocol (TCP) connection traps.

udp-port

(Optional) Send notification host's User Datagram Protocol (UDP) port number.

vlan-membership

(Optional) Send SNMP VLAN membership traps.

vtp

(Optional) Send VLAN Trunking Protocol (VTP) traps.


Defaults

This command is disabled by default. No notifications are sent.

If you enter this command with no keywords, the default is to send all trap types to the host. No informs are sent to this host.

If no version keyword is present, the default is version 1.

If version 3 is selected and no authentication keyword is entered, the default is the noauth (noAuthNoPriv) security level.


Note If the community-string is not defined by using the snmp-server community global configuration command before using this command, the default form of the snmp-server community command is automatically inserted into the configuration. The password (community-string) used for this automatic configuration of the snmp-server community will be the same as that specified in the snmp-server host command.


Command Modes

Global configuration

Command History

Release
Modification

12.0(5.2)WC(1)

This command was introduced.

12.1(6)EA2

The cluster, mac-notification, and rtr keywords were added.

12.1(9)EA1

The vlan-membership keyword was added.

12.1(11)EA1

The version 3 option was added, with the auth and noauth keywords.


Usage Guidelines

SNMP notifications can be sent as traps or inform requests. Traps are unreliable because the receiver does not send acknowledgments when it receives traps. The sender cannot determine if the traps were received. However, an SNMP entity that receives an inform request acknowledges the message with an SNMP response PDU. If the sender never receives the response, the inform request can be sent again. Thus, informs are more likely to reach their intended destinations.

However, informs consume more resources in the agent and in the network. Unlike a trap, which is discarded as soon as it is sent, an inform request must be held in memory until a response is received or the request times out. Traps are also sent only once, but an inform might be retried several times. The retries increase traffic and contribute to a higher overhead on the network.

If you do not enter an snmp-server host command, no notifications are sent. To configure the switch to send SNMP notifications, you must enter at least one snmp-server host command. If you enter the command with no keywords, all trap types are enabled for the host. To enable multiple hosts, you must enter a separate snmp-server host command for each host. You can specify multiple notification types in the command for each host.

When multiple snmp-server host commands are given for the same host and kind of notification (trap or inform), each succeeding command overwrites the previous command. Only the last snmp-server host command is in effect. For example, if you enter an snmp-server host inform command for a host and then enter another snmp-server host inform command for the same host, the second command replaces the first.

The snmp-server host command is used with the snmp-server enable traps global configuration command. Use the snmp-server enable traps command to specify which SNMP notifications are sent globally. For a host to receive most notifications, at least one snmp-server enable traps command and the snmp-server host command for that host must be enabled. Some notification types cannot be controlled with the snmp-server enable traps command. For example, some notification types are always enabled. Other notification types are enabled by a different command.

The no snmp-server host command with no keywords disables traps, but not informs, to the host. To disable informs, use the no snmp-server host informs command.

Examples

This example shows how to configure a unique SNMP community string named comaccess for traps and prevent SNMP polling access with this string through access-list 10:

Switch(config)# snmp-server community comaccess ro 10
Switch(config)# snmp-server host 172.20.2.160 comaccess
Switch(config)# access-list 10 deny any

This example shows how to send the SNMP traps to the host specified by the name myhost.cisco.com. The community string is defined as comaccess:

Switch(config)# snmp-server enable traps
Switch(config)# snmp-server host myhost.cisco.com comaccess snmp 

This example shows how to enable the switch to send all traps to the host myhost.cisco.com using the community string public:

Switch(config)# snmp-server enable traps
Switch(config)# snmp-server host myhost.cisco.com public

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.

snmp-server enable traps

Enables SNMP notification for various trap types.


snmp trap mac-notification

Use the snmp trap mac-notification interface configuration command to enable the MAC notification traps on a port. Use the no form of this command to disable the traps and to return the port to default settings.

snmp trap mac-notification [added | removed]

no snmp trap mac-notification [added | removed]

Syntax Description

added

(Optional) Enable MAC notification traps when a MAC address is added to a port.

removed

(Optional) Enable MAC notification traps when a MAC address is removed from a port.


Defaults

The Simple Network Management Protocol (SNMP) address-addition and address-removal traps are disabled.

Command Modes

Interface configuration

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

Even though you enable the notification trap for a specific interface by using the snmp trap mac-notification command, the trap is generated only when you enter the snmp-server enable traps mac-notification and the mac address-table notification global configuration commands.

Examples

This example shows how to enable an address-addition trap on a port:

Switch(config-if)# snmp trap mac-notification added

This example shows how to enable an address-removal trap on a port:

Switch(config-if)# snmp trap mac-notification removed

You can verify your settings by entering the show mac address-table notification privileged EXEC command.

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 on a switch.

show mac address-table notification

Displays MAC notification parameters.

snmp-server enable traps

Enables SNMP notification for various trap types.


spanning-tree backbonefast

Use the spanning-tree backbonefast global configuration command to enable the BackboneFast feature. Use the no form of this command to return to the default setting.

spanning-tree backbonefast

no spanning-tree backbonefast

Syntax Description

This command has no arguments or keywords.

Defaults

BackboneFast is disabled.

Command Modes

Global configuration

Command History

Release
Modification

12.1(6)EA2

This command was introduced.


Usage Guidelines

The BackboneFast feature is supported only when the switch is running per-VLAN spanning-tree (PVST).

BackboneFast is started when a root port or blocked port on a switch receives inferior bridge protocol data units (BPDUs) from its designated bridge. An inferior BPDU identifies one switch as both the root bridge and the designated bridge. When a switch receives an inferior BPDU, it means that a link to which the switch is not directly connected (an indirect link) has failed (that is, the designated bridge has lost its connection to the root switch). If there are alternate paths to the root switch, BackboneFast causes the maximum aging time on the ports on which it received the inferior BPDU to expire and allows a blocked port to move immediately to the listening state. BackboneFast then transitions the interface to the forwarding state. For more information, refer to the software configuration guide for this release.

Enable BackboneFast on all supported switches to allow the detection of indirect link failures and to start the spanning-tree reconfiguration sooner.

Examples

This example shows how to enable BackboneFast on the switch:

Switch(config)# spanning-tree backbonefast

You can verify your setting by entering the show spanning-tree summary privileged EXEC command.

Related Commands

Command
Description

show spanning-tree summary

Displays a summary of the spanning-tree port states.


spanning-tree bpdufilter

Use the spanning-tree bpdufilter interface configuration command to prevent a port from sending or receiving bridge protocol data units (BPDUs). Use the no form of this command to return to the default setting.

spanning-tree bpdufilter {disable | enable}

no spanning-tree bpdufilter

Syntax Description

disable

Disable BPDU filtering on the specified interface.

enable

Enable BPDU filtering on the specified interface.


Defaults

BPDU filtering is disabled.

Command Modes

Interface configuration

Command History

Release
Modification

12.1(9)EA1

This command was introduced.


Usage Guidelines

You can enable the BPDU filtering feature when the switch is operating in the per-VLAN spanning-tree (PVST) or the multiple spanning-tree (MST) mode. The MST mode is available only if you have the enhanced software image (EI) installed on your switch.


Caution Enabling BPDU filtering on an interface is the same as disabling spanning tree on it and can result in spanning-tree loops.

You can globally enable BPDU filtering on all Port Fast-enabled ports by using the spanning-tree portfast bpdufilter default global configuration command.

You can use the spanning-tree bpdufilter interface configuration command to override the setting of the spanning-tree portfast bpdufilter default global configuration command.

Examples

This example shows how to enable the BPDU filtering feature on a port:

Switch(config)# interface fastethernet0/1
Switch(config-if)# spanning-tree bpdufilter enable

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

Related Commands

Command
Description

show running-config

Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.

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 bpduguard

Use the spanning-tree bpduguard interface configuration command to put a port in the error-disabled state when it receives a bridge protocol data unit (BPDU). Use the no form of this command to return to the default setting.

spanning-tree bpduguard {disable | enable}

no spanning-tree bpduguard

Syntax Description

disable

Disable BPDU guard on the specified interface.

enable

Enable BPDU guard on the specified interface.


Defaults

BPDU guard is disabled.

Command Modes

Interface configuration

Command History

Release
Modification

12.1(9)EA1

This command was introduced.


Usage Guidelines

The BPDU guard feature provides a secure response to invalid configurations because you must manually put the port back in service. Use the BPDU guard feature in a service-provider network to prevent a port from being included in the spanning-tree topology.

You can enable the BPDU guard feature when the switch is operating in the per-VLAN spanning-tree (PVST) or the multiple spanning-tree (MST) mode. The MST mode is available only if you have the enhanced software image (EI) installed on your switch.

You can globally enable BPDU guard on all Port Fast-enabled ports by using the spanning-tree portfast bpduguard default global configuration command.

You can use the spanning-tree bpduguard interface configuration command to override the setting of the spanning-tree portfast bpduguard default global configuration command.

Examples

This example shows how to enable the BPDU guard feature on a port:

Switch(config)# interface fastethernet0/1
Switch(config-if)# spanning-tree bpduguard enable

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

Related Commands

Command
Description

show running-config

Displays the current operating configuration. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.

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 cost

Use the spanning-tree cost interface configuration command to set the path cost for spanning-tree calculations. If a loop occurs, spanning tree considers the path cost when selecting an interface to place in the forwarding state. Use the no form of this command to return to the default setting.

spanning-tree [vlan vlan-id] cost cost

no spanning-tree [vlan vlan-id] cost

Syntax Description

vlan vlan-id

(Optional) VLAN ID associated with a spanning-tree instance. The range is 1 to 4094 when the enhanced software image (EI) is installed and 1 to 1005 when the standard software image (SI) is installed. Do not enter leading zeros.

cost

Path cost can range from 1 to 200000000, with higher values meaning higher costs.


Defaults

The default path cost is computed from the interface bandwidth setting. These are the IEEE default path cost values:

10 Mbps—100

100 Mbps—19

155 Mbps—14

1000 Mbps—4

1 Gbps—4

10 Gbps—2

Speeds gre