Table Of Contents

setup express

show boot

show cluster

show cluster candidates

show cluster members

show controllers ethernet-controller

show dot1x

show env

show errdisable recovery

show etherchannel

show file

show interfaces

show interfaces counters

show ip igmp snooping

show ip igmp snooping mrouter

show lacp

show mac address-table

show mac address-table multicast

show mac address-table notification

show mls qos interface

show monitor

show mvr

show mvr interface

show mvr members

show pagp

show port-security

show running-config vlan

show setup express

show spanning-tree

show storm-control

show system mtu

show udld

show version

show vlan

show vmps

show vtp

show wrr-queue bandwidth

show wrr-queue cos-map

shutdown

shutdown vlan

snmp-server enable traps

snmp-server host

snmp trap mac-notification

spanning-tree backbonefast

spanning-tree bpdufilter

spanning-tree bpduguard

spanning-tree cost

spanning-tree etherchannel guard misconfig

spanning-tree extend system-id

spanning-tree guard

spanning-tree link-type

spanning-tree loopguard default

spanning-tree mode

spanning-tree 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

2ó

setup express

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

setup express

no setup express

Syntax Description

This command has no arguments or keywords.

Defaults

Express Setup is enabled.

Command Modes

Global configuration

Command History

Release	Modification
12.1(13)AY	This command was first introduced.

Usage Guidelines

When Express Setup is enabled on a new (unconfigured) switch, pressing the Mode button for 3 seconds activates Express Setup. You can access the switch through an Ethernet port by using the IP address 10.0.0.1 and then can configure the switch with the web-based Express Setup program or the CLI-based setup program.

When you press the Mode button for 3 seconds on a configured switch, the mode LEDs start flashing. If you press the Mode button for a total of 10 seconds, the switch configuration is deleted, and the switch reboots. The switch can then be configured like a new switch, either through the web-based Express Setup program or the CLI-based setup program.

---

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

---

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

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

For more information about Express Setup, refer to Chapter 1, "Quick Setup," and Appendix D, "Configuring the Switch with the CLI-Based Setup Program," in the hardware installation guide.

Examples

This example shows how to enable Express Setup mode:

Switch(config)# setup express

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

•On an unconfigured switch, the mode LEDs turn solid green after 3 seconds.

•On a configured switch, the mode LEDs begin flashing after 10 seconds.

---

Caution If you hold the Mode button down for a total of 10 seconds, the configuration is deleted, and the switch reboots.

---

This example shows how to disable Express Setup mode:

Switch(config)# no setup express

You can verify that Express Setup mode is disabled by pressing the Mode button. The mode LEDs will only turn solid green or begin flashing if Express Setup mode is enabled on the switch.

Related CommandsYou

Command	Description
clear setup express	Exits Express Setup mode without saving the configuration
show setup express	Displays if Express Setup mode is active on the switch.

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(13)AY	This command was first 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.

---

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

---

Examples

This is an example of output from the show boot command. Table 2-2 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 2-2 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 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 [ candidate | members | | {begin | exclude | include} expression]

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

Syntax Descriptionshow cluster

candidates	Lists cluster candidates information.
members	Lists cluster members 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
12.1(13)AY	This command was first 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
12.1(13)AY	This command was first introduced.

Usage Guidelines

You should only enter this command on a command switch.

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

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

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

Examples

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

Switch# show cluster candidates

|---Upstream---|

MAC Address    Name         Device Type      PortIf  FEC Hops SN PortIf  FEC

0030.85f5.8e80 3550-12T     WS-C3550-12T     Gi0/4         1   0  Fa0/1        

0005.313c.5880 Switch2      WS-C3550-12T     Gi0/1         2   E  Gi0/5        

0005.dcc8.01c0 2950-145     WS-C2950T-24     Fa0/1         3   E  Gi0/2 

0002.b922.7180 C2820        WS-C2820-24      Fa0/3        Up 

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

Switch# show cluster candidates mac-address 0005.313c.5880

Device 'Switch2' with mac address number 0005.313c.5880

        Device type:              cisco WS-C3550-12T

        Upstream MAC address:     0030.85f5.8e80

        Local port:               Gi0/1  FEC number: 

        Upstream port:            Gi0/5  FEC Number: 

        Hops from cluster edge:   2

        Hops from command device: -

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
12.1(13)AY	This command was first 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.

|---Upstream---|

SN MAC Address    Name         PortIf FEC Hops   SN PortIf  FEC  State

0  0003.fd62.9180 2940-8TT-S-1              0                     Up   (Cmdr)

1  0003.fd62.91c0 2940-8TT-S-1 Fa0/6        1     0  Fa0/6        Up  

2  0002.b922.7180 WS-C2820     B        0   1     0  Fa0/3        Up 

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 without keywords to display per-interface send and receive statistics read from the hardware. Use with keywords to display the interface internal registers.

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

Syntax Description

interface-id	The physical interface.
asic	(Optional) Display the state of the internal registers on the forwarding application-specific integrated circuit (ASIC) for the interface.
phy	(Optional) Display the status of the internal registers on the switch physical layer device (PHY) for the 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(13)AY	This command was first introduced.

Usage Guidelines

This display without keywords provides traffic statistics, basically the RMON statistics for the interface.

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

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 controllers ethernet-controller command. For this example, Table 2-3 describes the Transmit fields, and Table 2-4 describes the Receive fields.

Switch# show controllers ethernet-controller fastethernet0/2

Transmit                                Receive

19188 Bytes                            53052 Bytes

180 Frames                             679 Frames

86 Multicast frames                     0 FCS errors

1 Broadcast frames                   678 Multicast frames

0 Pause frames                         0 Broadcast frames

0 Single defer frames                  0 Control frames

0 Multiple defer frames                0 Pause frames

0 1 collision frames                   0 Unknown opcode frames

0 2-15 collisions                      0 Alignment errors

0 Late collisions                      0 Length out of range

0 Excessive collisions                 0 Symbol error frames

0 Total collisions                     0 False carrier errors

0 Control frames                       0 Valid frames, too small

0 VLAN discard frames                  0 Valid frames, too large

0 Too old frames                       0 Invalid frames, too small

0 Tagged frames                        0 Invalid frames, too large

0 Aborted Tx frames                    0 Discarded frames

Table 2-3 Transmit Field Descriptions From the show controllers ethernet-controller Command Output 

Field	Description
Bytes	The total number of bytes transmitted on an interface.
Frames	The total number of frames transmitted on an interface.
Multicast frames	The total number of frames transmitted to multicast addresses.
Broadcast Frames	The total number of frames transmitted to broadcast addresses.
Pause frames	The number of pause frames transmitted on an interface.
Single defer frames	The number of frames for which the first transmission attempt on an interface is not successful. This value excludes frames in collisions.
Multiple defer frames	The number of frames that are not be transmitted after the time exceeds 2*maximum-packet time.
1 Collision frames	The number of frames that are successfully transmitted on an interface after one collision occurs.
2-15 collisions	The number of frames that are successfully transmitted on an interface after more than one collision occurs.
Late collisions	After a frame is transmitted, the number of times that a collision is detected on an interface later than 512 bit times.
Excessive collisions	The number of frames that could not be transmitted on an interface because more than 16 collisions occurred.
Total collisions	The total number of collisions on an interface.
Control frames	The number of control frames transmitted on an interface, such as STP1 BPDUs2 .
VLAN discard frames	The number of frames dropped on an interface because the CFI3 bit is set.
Too old frames	The number of frames dropped on the egress port because the packet is aged out.
Tagged frames	The number of tagged frames transmitted on an interface.
Aborted Tx frames	The number of aborted transmission attempts on the interface.

1 STP = Spanning Tree Protocol 2 BPDU = bridge protocol data unit 3 CFI = Canonical Format Indicator

Table 2-4 Receive Field Descriptions From the show controllers ethernet-controller Command Output 

Field	Description
Bytes	The total amount of memory (in bytes) used by frames received on an interface, including the FCS1 value and the incorrectly-formed frames. This value excludes the frame header bits.
Frames	The total number of frames received on an interface, including multicast frames, broadcast frames, and incorrectly-formed frames.
FCS errors	The total number of frames received on an interface that have a valid length (in bytes) but do not have the correct FCS values.
Muliticast frames	The total number of frames successfully received on the interface that are directed to multicast addresses.
Broadcast frames	The total number of frames successfully received on an interface that are directed to broadcast addresses.
Control frames	The number of control frames received on an interface, such as STP BPDUs.
Pause frames	The number of pause frames received on an interface.
Unknown opcode frames	The number of frames received with an unknown operation code.
Alignment errors	The total number of frames received on an interface that have alignment errors.
Length out of range	The number of frames received on an interface that have an out-of-range length.
Symbol error frames	The number of frames received on an interface that have symbol errors.
False carrier errors	The number of occurrences in which the interface detects a false carrier when frames are not transmitted or received.
Valid frames, too small	The number of frames received on an interface that are less than 64 bytes (or 68 bytes for VLAN tagged frames) and have valid FCS values. The frame size includes the FCS bits but excludes the frame header bits.
Valid frames, too large	The number of frames received on an interface that are larger than the maximum allowed frame size.
Invalid frames, too small	The number of frames received that are less than 64 bytes (including the FCS bits and excluding the frame header) and have either an FCS error or an alignment error.
Invalid frames, too large	The number of frames received that were longer than maximum allowed MTU2 size (including the FCS bits and excluding the frame header) and have either an FCS error or an alignment error.
Discarded frames	The number of frames discarded because of lack of receive buffer memory.

1 FCS = frame check sequence 2 MTU = maximum transmission unit

Related Commands

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

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(13)AY	This command was first 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                    enabled     Auto (negotiate)    no

    802.1X Port Details

    802.1X is enabled on GigabitEthernet0/1

      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 2940 Switch Software Configuration Guide.

This is an example of output from the show dot1x interface gigabitethernet0/1 privileged EXEC command. Table 2-5 describes the fields in the example.

Switch# show dot1x interface gigabitethernet0/1

802.1X is enabled on GigabitEthernet0/1 

  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 2-5 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 2-6 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 2-6 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 | power | rps} [ | {begin | exclude | include} expression]

Syntax Description

all	Display both fan and temperature environmental status.
fan	Display the switch fan status (only available in privileged EXEC mode).
power	Display the internal power supply status.
| 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.

---

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

---

Command Modes

User EXEC

Command History

Release	Modification
12.1(13)AY	This command was first 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 command:

Switch> show env all

FAN is OK

Internal POWER supply is OK

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(13)AY	This command was first 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                 Disabled

bpduguard            Disabled

security-violatio    Disabled

channel-misconfig    Disabled

vmps                 Disabled

pagp-flap            Disabled

dtp-flap             Disabled

link-flap            Disabled

gbic-invalid         Disabled

psecure-violation    Disabled

Timer interval:300 seconds

Interfaces that will be enabled at the next timeout:

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(13)AY	This command was first introduced.

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
12.1(13)AY	This command was first introduced.

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 2-7 describes the fields in the show file descriptors command output.

Table 2-7 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 2-8 lists the possible file types for the previous example.

Table 2-8 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 2-9 describes the fields in the show file systems command output. Table 2-10 lists the file system types. Table 2-11 lists the file system flags.

Table 2-9 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 2-10 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 2-11 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 | capabilities [module {module-number]} | description | etherchannel | flowcontrol | 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 1005.
accounting	(Optional) Display interface accounting information.
capabilities	(Optional) Display the capabilities of the ports.
description	(Optional) Display the administrative status and description set for an interface.
etherchannel	(Optional) Display interface EtherChannel information.
flowcontrol	(Optional) Display interface flowcontrol information.
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, information for only 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.
| module module-number	(Optional) The module or interface number. If you do not specify a module number, the information is displayed for all ports.
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
12.1(13)AY	This command was first 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 interfaces accounting command:

Switch# show interfaces accounting

Vlan1 

                Protocol    Pkts In   Chars In   Pkts Out  Chars Out

                      IP     788351   52972014     251412  100879066

                     ARP      20717    1243020         96       7478

FastEthernet0/1 

                Protocol    Pkts In   Chars In   Pkts Out  Chars Out

           Spanning Tree     578189   33534928     867150   55497352

                     CDP       9643    3975395      11364    4844104

                     VTP          0          0        938      92862

                     DTP      19276    1118008          0          0

<output truncated>

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

Switch# show interfaces fastethernet0/1 capabilities 

FastEthernet0/1

  Model:                 WS-C2940-8TT-S

  Type:                  10/100BaseTX

  Speed:                 10,100,auto

  Duplex:                half,full,auto

  UDLD:                  yes

  Trunk encap. type:     802.1Q

  Trunk mode:            on,off,desirable,nonegotiate

  Channel:               yes

  Broadcast suppression: percentage(0-100)

  Flowcontrol:           rx-(none),tx-(none)

  Fast Start:            yes

  CoS rewrite:           yes

  ToS rewrite:           yes

  Inline power:          no

  SPAN:                  source/destination

  PortSecure:            Yes

  Dot1x:                 Yes

This is an example of output from the show interfaces gigabitethernet0/1 command:

Switch# show interfaces gigabitethernet0/1 

GigabitEthernet0/1

  Model:                 WS-C2940-8TT-S

  Type:                  unknown

  Speed:                 10,100,1000,auto

  Duplex:                half,full,auto

  UDLD:                  yes

  Trunk encap. type:     802.1Q

  Trunk mode:            on,off,desirable,nonegotiate

  Channel:               yes

  Broadcast suppression: percentage(0-100)

  Flowcontrol:           rx-(off,on,desired),tx-(off,on,desired)

  Fast Start:            yes

  CoS rewrite:           yes

  ToS rewrite:           yes

  Inline power:          no

This is an example of output from the show interfaces gigabitethernet0/1 description command when the interface has been described as Connects to Marketing by using the description interface configuration command.

Switch# show interfaces gigabitethernet0/1 description

Interface Status         Protocol Description

G10/1 up             down     Connects to Marketing

This is an example of 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.

Switch# show interfaces status

Port      Name               Status       Vlan       Duplex  Speed Type

Fa0/1                        connected    trunk      a-full  a-100 10/100BaseTX

Fa0/2                        notconnect   1            auto   auto 10/100BaseTX

Fa0/3                        connected    trunk      a-full  a-100 10/100BaseTX

Fa0/4                        notconnect   1            auto   auto 10/100BaseTX

Fa0/5                        notconnect   1            auto   auto 10/100BaseTX

Fa0/6                        notconnect   1            auto   auto 10/100BaseTX

Fa0/7                        notconnect   1            auto   auto 10/100BaseTX

Fa0/8                        notconnect   1            auto   auto 10/100BaseTX

Gi0/1                        notconnect   1            auto   auto unknown

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

switch#show interfaces fastethernet0/15 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 flowcontrol command. Table 2-12 lists the fields in this display.

Switch# show interfaces flowcontrol

Port    Send FlowControl  Receive FlowControl  RxPause TxPause

        admin    oper     admin    oper                       

-----   -------- -------- -------- --------    ------- -------

Gi0/1   desired  off      off      off         0       0 

Table 2-12 show interfaces flowcontrol Field Descriptions 

Field	Description
Port	Displays the port name.
Send FlowControl
Admin	Displays the administrative (configured) setting for the flow control send mode.
Oper	Displays the operational (running) setting for the flow control send mode.
Receive FlowControl
Admin	Displays the administrative (configured) setting for the flow control receive mode.
Oper	Displays the operational (running) setting for the flow control receive mode.
RxPause	Displays the number of pause frames received.
TxPause	Displays the number of pause frames sent.
On	Flow control is enabled.
Off	Flow control is disabled.
Desired	Flow control is enabled if the other end supports it.
Unsupp.	Flow control is not supported.

This is an example of output from the show interfaces switchport command for a single interface. Table 2-13 describes the fields in the output.

Switch# show interfaces gigabitethernet0/1 switchport

Name: Gi0/1

Switchport:Enabled

Administrative Mode:dynamic desirable

Operational Mode:static access

Administrative Trunking Encapsulation:negotiate

Negotiation of Trunking:On

Access Mode VLAN:1 (default)

Trunking Native Mode VLAN:1 (default)

Voice VLAN:none

Administrative private-vlan host-association:none

Administrative private-vlan mapping:none

Operational private-vlan:none

Trunking VLANs Enabled:ALL

Pruning VLANs Enabled:2-1001

Capture Mode: Disabled

Capture VLANs Allowed:ALL

Protected:true

Unknown unicast blocked:disabled

Unknown multicast blocked:disabled

Voice VLAN:none (Inactive)

Appliance trust:none

Table 2-13 show interfaces switchport Field Descriptions 

Field	Description
Name	Displays the port name.
Switchport	Displays the administrative and operational status of the port. In this output, the port is in switchport mode.
Administrative Mode Operational Mode	Displays the administrative and operational mode.
Administrative Trunking Encapsulation Negotiation of Trunking	Displays the administrative and operational encapsulation method, and whether trunking negotiation is enabled.
Access Mode VLAN	Displays the VLAN ID to which the port is configured.
Trunking Native Mode VLAN Trunking VLANs Enabled Trunking VLANs Active	Lists the VLAN ID of the trunk that is in native mode. Lists the allowed VLANs on the trunk. Lists the active VLANs on the trunk.
Pruning VLANs Enabled	Lists the VLANs that are pruning-eligible.
Administrative private-vlan host-association Administrative private-vlan mapping Operational private-vlan	Displays the administrative and operational status of the private VLAN, and displays the private-VLAN mapping.
Capture Mode Captured VLANs Allowed	Displays the capture mode and the number of captured VLANs allowed. Note Because the switch does not support the capture feature, the values for these fields do not change.
Protected	Displays whether or not protected port is enabled (True) or disabled (False) on the interface.
Voice VLAN	Displays the VLAN ID on which voice VLAN is enabled.
Appliance trust	Displays the class of service (CoS) setting of the data packets of the IP phone.

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

Switch# show interfaces trunk

Port      Mode         Encapsulation  Status        Native vlan

Fa0/4     on           802.1q         trunking      1

Fa0/6     on           802.1q         trunking      1

Port      Vlans allowed on trunk

Fa0/4     1-1005

Fa0/6     1-1005

Port      Vlans allowed and active in management domain

Fa0/4     1-2,51-52

Fa0/6     1-2,51-52

Port      Vlans in spanning tree forwarding state and not pruned

Fa0/4     1

Fa0/6     1-2,51-52

This is an example of output from the show interfaces 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 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 1001.
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(13)AY	This command was first 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

Port           OutOctets  OutUcastPkts  OutMcastPkts  OutBcastPkts

Gi0/1            4990607         28079         21122            10

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

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

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

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

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

Related Commands

Command	Description
show interfaces	Displays interface characteristics.
storm-control	Configures broadcast, multicast, and unicast storm control for an interface.

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 1001.
| 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(13)AY	This command was first 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 1001.
| 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(13)AY	This command was first 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 lacp

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

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

Syntax Description

channel-group-number	(Optional) Number of the channel group. Valid numbers range from 1 to 6.
counters	Display traffic information.
internal	Display internal information.
neighbor	Display neighbor information.
sys-id	Display the system identifier that is being used by LACP. The system identifier is made up of the LACP system priority and a MAC address.
| begin	(Optional) Display begins with the line that matches the expression.
| exclude	(Optional) Display excludes lines that match the expression.
| include	(Optional) Display includes lines that match the specified expression.
expression	Expression in the output to use as a reference point.

Command Modes

User EXEC

Command History

Release	Modification
12.1(13)AY	This command was first introduced.

Usage Guidelines

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

Expressions are case sensitive. For example, if you 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 lacp counters command:

Switch> show lacp counters

LACPDUs         Marker      Marker Response    LACPDUs

Port       Sent   Recv     Sent   Recv     Sent   Recv      Pkts Err

---------------------------------------------------------------------

Channel group:1

Fa0/5      19     10       0      0        0      0         0     

Fa0/6      14     6        0      0        0      0         0     

Fa0/7      8      7        0      0        0      0         0 

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

Switch> show lacp internal 

Flags: S - Device is sending Slow LACPDUs F - Device is sending Fast LACPDUs

        A - Device is in Active mode       P - Device is in Passive mode     

Channel group 1

                            LACP port     Admin     Oper    Port     Port

Port      Flags   State     Priority      Key       Key     Number   State

Fa0/5     SP      indep     32768         0x1       0x1     0x4      0x7C  

Fa0/6     SP      indep     32768         0x1       0x1     0x5      0x7C  

Fa0/7     SP      down      32768         0x1       0x1     0x6      0xC 

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

Switch> show lacp neighbor

Flags: S - Device is sending Slow LACPDUs F - Device is sending Fast LACPDUs

        A - Device is in Active mode       P - Device is in Passive mode     

Channel group 1 neighbors

Partner's information:

          Partner               Partner                     Partner

Port      System ID             Port Number     Age         Flags

Fa0/5     00000,0000.0000.0000  0x0             85947s        SP

          LACP Partner         Partner         Partner

          Port Priority        Oper Key        Port State

          0                    0x0             0x0 

Partner's information:

          Partner               Partner                     Partner

Port      System ID             Port Number     Age         Flags

Fa0/6     00000,0000.0000.0000  0x0             86056s        SP

          LACP Partner         Partner         Partner

          Port Priority        Oper Key        Port State

          0                    0x0             0x0 

Partner's information:

          Partner               Partner                     Partner

Port      System ID             Port Number     Age         Flags

Fa0/7     00010,0008.a343.b580  0x6             86032s        SA

          LACP Partner         Partner         Partner

          Port Priority        Oper Key        Port State

          32768                0x1             0x35

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

Switch> show lacp sys-id 

32765,0002.4b29.3a00

Related Commands

Command	Description
clear lacp	Clears LACP channel-group information.

show 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]

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 1001.
| 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(13)AY	This command was first introduced.

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]

Syntax Description

vlan vlan-id	(Optional) Specify a VLAN; valid values are 1 to 1005. (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
12.1(13)AY	This command was first 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 mac address-table multicast vlan 1 command:

Switch# show  mac address-table multicast vlan 1

Vlan    Mac Address     Type    Ports

----    -----------     ----    -----

   1    0100.5e00.0128  IGMP    Fa0/1

   1    0100.5e01.1111  USER    Fa0/3, Fa0/4, Fa0/5, Fa0/6

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

Switch# show  mac address-table multicast count

Multicast Mac Entries for all vlans: 10

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

Switch# show  mac address-table multicast vlan 1 count

Multicast Mac Entries for vlan 1: 2

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

Switch# show  mac address-table multicast vlan 1 user

vlan   mac address      type        ports

-----+----------------+-------+---------------------

1     0100.5e02.0203    user     Fa0/1,Fa0/2,Fa0/4

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

Switch# show  mac address-table multicast vlan 1 igmp-snooping count

Number of igmp-snooping programmed entries : 1

show mac address-table notification

Use the show mac address-table notification user EXEC command to display parameters for the MAC notification feature.

show mac address-table notification [interface interface-id] [ | {begin | exclude | include} expression]

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(13)AY	This command was first introduced.

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

Syntax Description

interface-id	(Optional) Display QoS information for 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.

---

Note Though visible in the command-line help strings, the vlan vlan-id option and the policers keyword are not supported.

---

Command Modes

User EXEC

Command History

Release	Modification
12.1(13)AY	This command was first introduced.

Usage Guidelines

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 trust	Configures the port trust state. Ingress traffic can be trusted, and classification is performed by examining the CoS or DSCP value.

show monitor

Use the show monitor user EXEC command to display Switched Port Analyzer (SPAN) session information.

show monitor [session {session_number | all | local | range | remote}] [ | {begin | exclude | include} expression]

Syntax Description

session session_number	(Optional) Specify the session number identified with this SPAN session.
all	Specify all sessions.
local	Specify local sessions.
range	Specify a range of sessions.
remote	Specify remote sessions.
| begin	(Optional) Display begins with the line that matches the expression.
| exclude	(Optional) Display excludes lines that match the expression.
| include	(Optional) Display includes lines that match the specified expression.
expression	Expression in the output to use as a reference point.

---

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

---

Command Modes

User EXEC

Command History

Release	Modification
12.1(13)AY	This command was first 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 for the show monitor privileged EXEC command for SPAN source session 1:

Switch# show monitor session 1

Session 1

---------

Type: 					: Local Session

Source Ports 					:

    Both: 					: Fa0/6

Related Commands

Command	Description
monitor session	Enables SPAN 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(13)AY	This command was first 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(13)AY	This command was first 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 RECEIVER        ACTIVE/DOWN     DISABLED

In the previous example, Status is defined as:

•Active means the port is part of a VLAN.

•Up/Down means that the port is forwarding/nonforwarding.

•Inactive means that the port is not part of any VLAN.

This is an example of output from the show mvr interface gigabitethernet0/1 command:

Switch# show mvr interface gigabitethernet0/1

Type: RECEIVER Status: ACTIVE Immediate Leave: DISABLED 

This is an example of output from the show mvr interface fastethernet0/6 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 and source ports that are currently members of an IP multicast group.

show mvr members [ip-address] [ | {begin | exclude | include} expression]

Syntax Description

ip-address	(Optional) The IP multicast address. If the address is entered, all receiver and source ports that are members of the multicast group appear. If no address is entered, all members of all Multicast VLAN Registration (MVR) groups are listed. If a group has no members, the group is listed as Inactive.
| begin	(Optional) Display begins with the line that matches the expression.
| exclude	(Optional) Display excludes lines that match the expression.
| include	(Optional) Display includes lines that match the specified expression.
expression	Expression in the output to use as a reference point.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(13)AY	This command was first introduced.

Usage Guidelines

The show mvr members command applies to receiver and source ports. For MVR compatible mode, all source ports are members of all multicast groups.

Expressions are case sensitive. For example, if you 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), Fa0/2(s)

239.255.0.2     INACTIVE        None

239.255.0.3     INACTIVE        None

239.255.0.4     INACTIVE        None

239.255.0.5     INACTIVE        None

239.255.0.6     INACTIVE        None

239.255.0.7     INACTIVE        None

239.255.0.8     INACTIVE        None

<output truncated>

239.255.0.255   INACTIVE        None

239.255.1.0     INACTIVE        None 

This is an example of output from the show mvr members 239.255.0.2 command. It shows how to view the members of the IP multicast group 239.255.0.2.

Switch# show mvr member 239.255.0.2

239.255.0.2     ACTIVE          Gi0/1(d), Fa0/2(d)

Related Commands

Command	Description
mvr	Enables and configures multicast VLAN registration on the switch.
mvr type	Configures an MVR port as a receiver or a source port.
show mvr	Displays the global MVR configuration on the switch.
show mvr interface	Displays the configured MVR interfaces, status of the specified interface, or all multicast groups to which the interface belongs.

show pagp

Use the show pagp user EXEC command to display Port Aggregation Protocol (PAgP) channel-group information.

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

Syntax Description

channel-group-number	(Optional) Number of the channel group. 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(13)AY	This command was first 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 

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

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 

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 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(13)AY	This command was first introduced.

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)

-------------------------------------------------------------------------------

     Fa0/4           1               1             0              Shutdown

-------------------------------------------------------------------------------

Total Addresses in System : 1

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

-------------------------------------------------------------------

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 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-ids, the range is 1 to to 1005.
| 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(13)AY	This command was first 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 100-1000

Building configuration...

Current configuration:

!

vlan 107

!

vlan 120

!

vlan 925

!

vlan 1000

end

Related Commands

Command	Description
show running-config	Displays the running configuration on the switch. For syntax information, select Cisco IOS Configuration Fundamentals Command Reference for Release 12.1 > Cisco IOS File Management Commands > Configuration File Commands.
vlan (global configuration)	Enters config-vlan mode for creating and editing VLANs.
vlan database	Enters VLAN configuration mode for creating and editing normal-range VLANs.

show setup express

Use the show setup express privileged EXEC command to display if Express Setup mode is active on the switch.

show setup express

Syntax Description

This command has no arguments or keywords.

Defaults

No default is defined.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(13)AY	This command was first introduced.

Usage Guidelines

For more information about Express Setup, refer to Chapter 1, "Quick Setup," and Appendix D, "Configuring the Switch with the CLI-Based Setup Program," in the hardware installation guide.

Examples

This is an example of output from the show setup express command:

Switch# show setup express

express setup mode is active

Related Commands

Command	Description
clear setup express	Exits Express Setup mode without saving the configuration
setup express	Enables Express Setup mode on the switch.

show spanning-tree

Use the show spanning-tree user EXEC command to display spanning-tree state information.

show spanning-tree [active [detail] | backbonefast | blockedports | bridge | detail [active] | inconsistentports | interface interface-id | 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]

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 1005. 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 a single VLAN identified by VLAN ID number, a range of VLANs separated by a hyphen, or a series of VLANs separated by a comma (only available in privileged EXEC mode). The range is 1 to  1005.
| 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
12.1(13)AY	This command was first introduced.

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     0001.425b.4d80

             Cost        76

             Port        2 (FastEthernet0/2)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)

             Address     0003.fd62.8d40

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 57 

Interface        Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

Fa0/2            Root FWD 19        128.2    P2p 

Po1              Desg FWD 19        128.65   P2p 

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

Switch> show spanning-tree detail

VLAN0001 is executing the ieee compatible Spanning Tree protocol

  Bridge Identifier has priority 32768, sysid 1, address 0003.fd62.8d40

  Configured hello time 2, max age 20, forward delay 15

  Current root has priority 32768, address 0001.425b.4d80

  Root port is 2 (FastEthernet0/2), cost of root path is 76

  Topology change flag not set, detected flag not set

  Number of topology changes 4 last change occurred 17:53:47 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 57

 Port 2 (FastEthernet0/2) of VLAN0001 is forwarding 

   Port path cost 19, Port priority 128, Port Identifier 128.2.

   Designated root has priority 32768, address 0001.425b.4d80

   Designated bridge has priority 32769, address 0030.85f5.8e80

   Designated port id is 128.4, designated path cost 57

   Timers: message age 5, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 4, received 36891

 Port 65 (Port-channel1) of VLAN0001 is forwarding 

   Port path cost 19, Port priority 128, Port Identifier 128.65.

   Designated root has priority 32768, address 0001.425b.4d80

   Designated bridge has priority 32769, address 0003.fd62.8d40

   Designated port id is 128.65, designated path cost 76

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 32233, received 2

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

Switch> show spanning-tree interface fastethernet0/1

Vlan             Role Sts Cost      Prio.Nbr Type

---------------- ---- --- --------- -------- --------------------------------

VLAN0001         Root FWD 19        128.2    P2p 

VLAN0002         Desg FWD 19        128.2    P2p 

VLAN0003         Desg FWD 19        128.2    P2p 

VLAN0004         Desg FWD 19        128.2    P2p 

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

Switch> show spanning-tree summary

Switch is in PVST+ mode

Root bridge for: none

EtherChannel misconfiguration guard is enabled

Extended system ID   is enabled

Portfast             is disabled by default

PortFast BPDU Guard  is disabled by default

Portfast BPDU Filter is disabled by default

Loopguard            is disabled by default

UplinkFast           is disabled

BackboneFast         is disabled

Pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active

---------------------- -------- --------- -------- ---------- ----------

VLAN0001                     0         0        0          2          2

VLAN0002                     0         0        0          2          2

VLAN0003                     0         0        0          2          2

VLAN0004                     0         0        0          2          2

---------------------- -------- --------- -------- ---------- ----------

4 vlans                      0         0        0          8          8

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 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(13)AY	This command was first introduced.

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 2-14 lists the show storm-control field descriptions.

Table 2-14 show storm-control Field Descriptions 

Field	Description
Interface	Displays the ID of the interface.
Filter State	Displays the status of the filter: •Blocking—Storm control is enabled, action is filter, and a storm has occurred. •Forwarding—Storm control is enabled, and a storm has not occurred. •Inactive—Storm control is disabled. •Shutdown—Storm control is enabled, the action is to shut down, and a storm has occurred. Note If an interface is disabled by a broadcast, multicast, or unicast storm, the filter state for all traffic types is shutdown.
Trap State	Displays the status of the SNMP trap: •Above rising—Storm control is enabled, and a storm has occurred. •Below rising—Storm control is enabled, and a storm has not occurred. •Inactive—The trap option is not enabled.
Upper	Displays the rising suppression level as a percentage of total available bandwidth.
Lower	Displays the falling suppression level as a percentage of total available bandwidth.
Current	Displays the bandwidth utilization of a specific traffic type as a percentage of total available bandwidth. This field is valid only when storm control is enabled.
Traps Sent	Displays the number traps sent on an interface for a specific traffic type.

This is an example of output from the show storm-control fastethernet0/4 history command, which displays the ten most recent storm events for an interface.

Switch> show storm-control fastethernet0/4 history

 Interface Fa0/4 Storm Event History 

 Event Type          Event Start Time  Duration (seconds)

 ------------------  ----------------  ------------------

 Unicast             04:58:18          206      

 Broadcast           05:01:54          n/a

 Multicast           05:01:54          n/a

 Unicast             05:01:54          108      

 Broadcast           05:05:00          n/a

 Multicast           05:05:00          n/a

 Unicast             05:06:00          n/a

 Broadcast           05:09:39          n/a

 Multicast           05:09:39          n/a

 Broadcast           05:11:32          172      

---

Note The duration field could be n/a when a storm is still present or when a new storm of a different type occurs before the current storm ends.

---

Related Commands

Command	Description
storm-control	Enables broadcast, multicast, or unicast storm control on a port.

show system mtu

Use the show system mtu privileged EXEC command to display the global maximum packet size or maximum transmission unit (MTU) set for the switch.

show system mtu [ | {begin | exclude | include} expression]

Syntax Description

| begin	(Optional) Display begins with the line that matches the expression.
| exclude	(Optional) Display excludes lines that match the expression.
| include	(Optional) Display includes lines that match the specified expression.
expression	Expression in the output to use as a reference point.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(13)AY	This command was first 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 1001.
| 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(13)AY	This command was first 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 2-15 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 2-15 show udld Field Descriptions 

Field	Description
Interface	The interface on the local device configured for UDLD.
Port enable administrative configuration setting	How UDLD is configured on the port. If UDLD is enabled or disabled, the port enable configuration setting is the same as the operational enable state. Otherwise, the enable operational setting depends on the global enable setting.
Port enable operational state	Operational state that shows whether UDLD is actually running on this port.
Current bidirectional state	The bidirectional state of the link. An unknown state appears if the link is down or if it is connected to an UDLD-incapable device. A bidirectional state appears if the link is a normal two-way connection to a UDLD-capable device. All other values mean miswiring.
Current operational state	The phase of the UDLD state machine. For a normal bidirectional link, the state machine is usually in the Advertisement phase.
Message interval	How often advertisement messages are sent from the local device. Measured in seconds.
Time out interval	The time period, in seconds, that UDLD waits for echoes from a neighbor device during the detection window.
Entry 1	Information from the first cache entry, which contains a copy of echo information received from the neighbor.
Expiration time	The amount of time in seconds remaining before this cache entry is aged out.
Device ID	The neighbor device identification.
Current neighbor state	The neighbor's state. If both the local and neighbor devices are running UDLD, the neighbor state and the local state is bidirectional. If the link is down or the neighbor is not UDLD-capable, no cache entries appear.
Device name	The neighbor MAC address.
Port ID	The neighbor port ID enabled for UDLD.
Neighbor echo 1 device	The MAC address of the neighbors' neighbor from which the echo originated.
Neighbor echo 1 port	The port number ID of the neighbor from which the echo originated.
Message interval	The rate, in seconds, at which the neighbor is sending advertisement messages.
CDP1 device name	CDP name of the device.

1 CDP = Cisco Discovery Protocol

This is an example of output from the show udld interface configuration command when the aggressive mode is configured:

Switch# show udld gigabitethernet0/1

Interface Gi0/1

---

Port enable administrative configuration setting:Enabled / in aggressive mode

Port enable operational state:Enabled / in aggressive mode

Current bidirectional state:Unknown

Current operational state:Link down

Message interval:7

Time out interval:5

No neighbor cache information stored

Related Commands

Command	Description
traceroute mac	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
12.1(13)AY	This command was first 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) C2940 Software (C2940-I6Q4L2-M), Version 12.1(13)AY

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Wed 02-Apr-03 09:51 by antonino

Image text-base: 0x80010000, data-base: 0x805B6000

ROM: Bootstrap program is C2940 boot loader

Switch uptime is 6 days, 17 hours, 56 minutes

System returned to ROM by power-on

System image file is "flash:c2940-i6q4l2-mz.121-0.0.9.AY.bin"

cisco WS-C2940-8TT-S (RC32300) processor with 20799K bytes of memory.

Last reset from system-reset

Running Standard Image

8 FastEthernet/IEEE 802.3 interface(s)

1 Gigabit Ethernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: 00:03:FD:62:91:80

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

Syntax Description

brief	(Optional) Display one line for each VLAN with the VLAN name, status, and its ports.
id vlan-id	(Optional) Display information about a single VLAN identified by VLAN ID number or a range of VLANs. For vlan-id, the range is 1 to 1005.
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.
| begin	(Optional) Display begins with the line that matches the expression.
| exclude	(Optional) Display excludes lines that match the expression.
| include	(Optional) Display includes lines that match the specified expression.
expression	Expression in the output to use as a reference point.

Syntax Description

Syntax DescriptionN

---

Note Though visible in the command-line help string, the ifindex, private vlan, and remote-span keywords are not supported.

---

Command Modes

User EXEC

Command History

Release	Modification
12.1(13)AY	This command was first 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 vlan command. Table 2-16 describes each field in the display.

Switch> show vlan

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/1, Fa0/3, Fa0/4, Fa0/5

                                                Fa0/7, Fa0/8, Fa0/9, Gi0/1

2    VLAN0002                         active    

3    VLAN0003                         active    

4    VLAN0004                         active    

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  -      -      -        -    -        0      0   

2    enet  100002     1500  -      -      -        -    -        0      0   

3    enet  100003     1500  -      -      -        -    -        0      0   

4    enet  100004     1500  -      -      -        -    -        0      0   

1002 fddi  101002     1500  -      -      -        -    -        0      0   

1003 tr    101003     1500  -      -      -        -    -        0      0   

1004 fdnet 101004     1500  -      -      -        ieee -        0      0   

1005 trnet 101005     1500  -      -      -        ibm  -        0      0   

Remote SPAN VLANs

------------------------------------------------------------------------------

Primary Secondary Type              Ports

------- --------- ----------------- ------------------------------------------

Table 2-16 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, Fa0/3, Fa0/4, Fa0/5

                                                Fa0/7, Fa0/8, Fa0/9, Gi0/1

2    VLAN0002                         active    

3    VLAN0003                         active    

4    VLAN0004                         active    

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 1005

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1005 trnet-default                    active    Fa0/2, Po1

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------

1005 trnet 101005     1500  -      -      -        ibm  -        0      0   

Remote SPAN VLAN

----------------

Disabled

Primary Secondary Type              Ports

------- --------- ----------------- ------------------------------------------

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 1005.
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(13)AY	This command was first 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 2-17 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 2-17 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
12.1(13)AY	This command was first 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 2-18 describes each field in the display.

Switch> show vtp counters

VTP statistics:

Summary advertisements received    : 241

Subset advertisements received     : 0

Request advertisements received    : 0

Summary advertisements transmitted : 225

Subset advertisements transmitted  : 0

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

---------------- ---------------- ---------------- ---------------------------

Fa0/2               0                0                0        

Po1                 0                0                0 

Table 2-18 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 2-19 describes each field in the display.

Switch> show vtp status

VTP Version                     : 2

Configuration Revision          : 363

Maximum VLANs supported locally : 8

Number of existing VLANs        : 8

VTP Operating Mode              : Server

VTP Domain Name                 : perd-group

VTP Pruning Mode                : Disabled

VTP V2 Mode                     : Disabled

VTP Traps Generation            : Disabled

MD5 digest                      : 0xEC 0xA2 0x3C 0x18 0xB2 0xCE 0x86 0xD8 

Configuration last modified by 172.20.139.142 at 3-6-93 16:04:29

Local updater ID is 172.20.139.142 on interface Vl1 (lowest numbered VLAN inter)

Table 2-19 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. By default, all VTP version 2 switches operate in version 1 mode. 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 (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
12.1(13)AY	This command was first 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 bandwidth	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
12.1(13)AY	This command was first 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. 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
12.1(13)AY	This command was first 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, the active management VLAN interface is the one without the shutdown command displayed.

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) cannot be shut down. The default VLANs are 1 and 1005.

Defaults

No default is defined.

Command Modes

Global configuration

Command History

Release	Modification
12.1(13)AY	This command was first 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 (global 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 [bridge | c2900 | cluster | config | entity | envmon [fan | shutdown | supply | temperature | voltage] | hsrp | mac-notification | port-security [trap-rate] | rtr | snmp [ authentication | coldstart | linkup | linkdown | warmstart ] | syslog | vlan-membership | vtp]

no snmp-server enable traps [bridge | c2900 | cluster | config | entity | envmon [fan | shutdown | supply | temperature | voltage] | hsrp |