Table Of Contents

sdm prefer

service-policy

set

setup

show access-lists

show boot

show changes

show class-map

show cluster

show cluster candidates

show cluster members

show current

show env

show errdisable recovery

show etherchannel

show fm interface

show fm label

show fm vlan

show forward

show interface

show interface counters

show ip igmp snooping

show mac-address-table address

show mac-address-table aging-time

show mac-address-table count

show mac-address-table dynamic

show mac-address-table interface

show mac-address-table multicast

show mac-address-table static

show mac-address-table vlan

show mls qos

show mls qos aggregate-policer

show mls qos interface

show mls qos maps

show mvr

show mvr interface

show mvr members

show pagp

show policy-map

show port led

show proposed

show rps

show sdm prefer

show spanning-tree

show udld

show version

show vlan

show vlan access-map

show vlan filter

show vmps

show vtp

shutdown

shutdown vlan

snmp-server enable traps

snmp-server host

spanning-tree backbonefast

spanning-tree cost

spanning-tree guard

spanning-tree port-priority

spanning-tree portfast

spanning-tree portfast bpduguard

spanning-tree stack-port

spanning-tree uplinkfast

spanning-tree vlan

speed

standby mac-address

switchport

switchport access

switchport block

switchport broadcast

switchport mode

switchport multicast

switchport nonegotiate

switchport protected

switchport trunk

switchport unicast

2

sdm prefer

Use the sdm prefer global configuration command to configure the template used in Switch Database Management (SDM) resource allocation. A template allows you to allocate system memory to best support the features being used in your application. It allows you to approximate the maximum number of unicast MAC addresses, Internet Group Management Protocol (IGMP) groups, quality of service (QoS) access control lists (ACLs), security ACLs, unicast routes, multicast routes, subnet VLANs (routed interfaces), and Layer 2 VLANs that can be configured on the switch. Use the no form of the command without keywords to return to the default settings.

sdm prefer {access | default | routing | vlan}

no sdm prefer

Syntax Description

access	Provide maximum system utilization for multicast traffic, QoS classification ACLs, and security ACLs, typical for an access switch at the network edge.
default	Provide balanced system utilization for unicast MAC addresses, IGMP groups, QoS ACLs, security ACLs, unicast and multicast routes, routed interfaces, and Layer 2 VLANs.
routing	Provide maximum system utilization for unicast routing, minimizing QoS classification ACLs and security ACLs, typical for a router or aggregator in the middle of a network.
vlan	Provide maximum system utilization for VLANs, with routing disabled. This template maximizes system memory for use as a Layer 2 switch with no routing.

Defaults

The default template provides a balance to all features.

Command Modes

Global configuration

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Usage Guidelines

The switch must reload for the configuration to take effect.

Table 2-10 lists the approximate number of each resource supported in each of the four templates. The actual number of supported resources might vary, depending on the actual number of other features configured. For example, in the default template, if your switch had more than 16 routed interfaces (subnet VLANs), the number of possible unicast MAC addresses might be less than 6000.

The first six rows in the table (unicast MAC addresses through multicast routes) represent hardware boundaries set when a template is selected. If a section of a hardware resource is full, all processing overflow is sent to the CPU, seriously impacting switch performance.

The last two rows, the total number of routed ports and SVIs and the number of Layer 2 VLANs, are guidelines used to calculate hardware resource consumption related to the other resource parameters. If the number of subnet VLANs or Layer 2 VLANs are greater than shown in the table, hardware resources might be used up before the other limits shown in the table are reached. This results in poor performance because overflows are always sent to the switch CPU.

Table 2-10 Approximate Number of Feature Resources Allowed by Each Template

Resource	Default Template	Access Template	Routing Template	VLAN Template
Unicast MAC addresses	6 K	2 K	6 K	12 K
IGMP groups managed by Layer 2 multicast features such as MVR and IGMP snooping	6 K	8 K	6 K	6 K
QoS ACLs	2 K	2 K	1 K	2 K
Security ACLs	2 K	4 K	1 K	2 K
Unicast routes	12 K	4 K	24 K	0
Multicast routes	6 K	7 K	6 K	0
Subnet VLANs (routed ports and SVIs)	16	16	16	16
Layer 2 VLANs	256	256	256	1 K

Examples

The following example shows how to configure the routing template on the switch:

Switch(config)# sdm prefer routing

Switch(config)# exit

Switch# reload

The following example shows how to remove the routing template and use the default template:

Switch(config)# no sdm prefer routing

Switch(config)# exit

Switch# reload

Related Commands

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

service-policy

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

service-policy {history | input policy-map-name | output policy-map-name}

no service-policy {history | input policy-map-name | output policy-map-name}

Syntax Description

history	Keep history of quality of service (QoS) metrics.
input policy-map-name	Apply the specified policy-map to the input of an interface.
output policy-map-name	Apply the specified policy-map to the output of an interface.

Defaults

No policy maps are attached to the interface.

Command Modes

Interface configuration

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Usage Guidelines

Only one policy map per interface per direction is supported.

You cannot attach policy maps that contain set or trust policy-map class configuration commands or that have an access control list (ACL) classification to an egress interface by using the service-policy interface configuration command.

Examples

The following example shows how to apply plcmap1 to an ingress interface:

Switch(config)# interface gigabitethernet0/1

Switch(config-if)# service-policy input plcmap1

The following example shows how to apply plcmap2 to an egress interface:

Switch(config)# interface gigabitethernet0/2

Switch(config-if)# service-policy output plcmap2

The following example shows how to detach plcmap2 from an interface2:

Switch(config)# interface gigabitethernet0/2

Switch(config-if)# no service-policy input plcmap2

You can verify the previous commands by entering the show running-config privileged EXEC command.

Related Commands

Command	Description
policy-map	Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy.
show policy-map	Displays quality of service (QoS) policy maps.

set

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

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

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

Syntax Description

ip dscp new-dscp	New DSCP value assigned to the classified traffic. The range is 0 to 63.
ip precedence new-precedence	New IP-precedence value assigned to the classified traffic. The range is 0 to 7.

Defaults

No traffic classification is defined.

Command Modes

Policy-map class configuration

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Usage Guidelines

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

You cannot attach policy maps that contain set or trust policy-map class configuration commands or that have an access control list (ACL) classification to an egress interface by using the service-policy interface configuration command.

If your switch is running the Layer 3 image, the set command is not supported with the sdm prefer vlan global configuration command. IP routing is required for the set command with the Layer 3 image, but IP routing cannot be enabled for this template.

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

Examples

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

Switch(config)# policy-map policy_ftp

Switch(config-pmap)# class ftp_class

Switch(config-pmap-c)# set ip dscp 10

Switch(config-pmap)# exit

You can verify the previous commands by entering the show policy-map user EXEC command.

Related Commands

Command	Description
police	Defines a policer for classified traffic.
policy-map	Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy.
show policy-map	Displays quality of service (QoS) policy maps.
trust	Defines a trust state for traffic classified by the class or the class-map command.

setup

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

setup

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Usage Guidelines

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

•IP address and network mask

•Password strategy for your environment

•Whether the switch will be used as the command switch in a cluster and the cluster name

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

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

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

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

Examples

The following is sample output from the setup command

Switch: setup

--- System Configuration Dialog ---

Continue with configuration dialog? [yes/no]: yes

At any point you may enter a question mark '?' for help.

Use ctrl-c to abort configuration dialog at any prompt.

Default settings are in square brackets '[]'.

Basic management setup configures only enough connectivity

for management of the system, extended setup will ask you

to configure each interface on the system.

Would you like to enter basic management setup? [yes/no]: yes

Configuring global parameters:

  Enter host name [Switch]:host-name

  The enable secret is a password used to protect access to

  privileged EXEC and configuration modes. This password, after

  entered, becomes encrypted in the configuration.

  Enter enable secret: enable-secret-password

  The enable password is used when you do not specify an

  enable secret password, with some older software versions, and

  some boot images.

  Enter enable password: enable-password

  The virtual terminal password is used to protect

  access to the router over a network interface.

  Enter virtual terminal password: terminal-password

  Configure SNMP Network Management? [no]: yes

  Community string [public]: 

Current interface summary

Any interface listed with OK? value "NO" does not have a valid configuration

Interface                  IP-Address      OK? Method Status                Protocol

Vlan1                      172.20.135.202  YES NVRAM  up                    up

GigabitEthernet0/1         unassigned      YES unset  up                    up

GigabitEthernet0/2         unassigned      YES unset  up                    down

GigabitEthernet0/3         unassigned      YES unset  administratively down down

GigabitEthernet0/4         unassigned      YES unset  up                    down

GigabitEthernet0/5         unassigned      YES NVRAM  up                    down

GigabitEthernet0/6         unassigned      YES NVRAM  up                    down

GigabitEthernet0/7         unassigned      YES unset  up                    down

GigabitEthernet0/8         unassigned      YES unset  up                    down

GigabitEthernet0/9         unassigned      YES unset  administratively down down

GigabitEthernet0/10        10.1.2.3        YES NVRAM  up                    down

GigabitEthernet0/11        unassigned      YES unset  up                    down

GigabitEthernet0/12        unassigned      YES unset  up                    down

Port-channel1              unassigned      YES unset  up                    down

Enter interface name used to connect to the

management network from the above interface summary: vlan1

Configuring interface vlan1:

Configure IP on this interface? [yes]: yes 

IP address for this interface: 10.4.120.106

Subnet mask for this interface [255.0.0.0]: 255.255.255.0

Would you like to enable as a cluster command switch? [yes/no]: yes

Enter cluster name: cluster-name

The following configuration command script was created:

hostname host-name

enable secret 5 $1$LiBw$0Xc1wyT.PXPkuhFwqyhVi0

enable password enable-password

line vty 0 15

password terminal-password

snmp-server community public

!

no ip routing

!

interface GigabitEthernet0/1

shutdown

no ip address

!

interface GigabitEthernet0/2

shutdown

no ip address

! 

...

interface GigabitEthernet0/12

shutdown

no ip address

cluster enable cluster-name

!

end

Use this configuration? [yes/no]: yes

!

[0] Go to the IOS command prompt without saving this config.

[1] Return back to the setup without saving this config.

[2] Save this configuration to nvram and exit.

Enter your selection [2]:

Related Commands

Command	Description
show running-config	Displays the running configuration on the switch.
show version	Displays version information for the hardware and firmware.

show access-lists

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

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

Syntax Description

name	(Optional) Name of the ACL.
number	(Optional) ACL number. The range is from 1 to 2699.
hardware counters	(Optional) Display global hardware ACL statistics for switched and routed packets.
| 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(4)EA1	This command was first introduced.

Usage Guidelines

The Catalyst 3550 multilayer switch supports only IP standard and extended access lists. Therefore, the only allowed numbers are 1 to 199 and 1300 to 2699.

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

The following is sample output from the show access-lists command:

Switch# show access-lists

Standard IP access list 13

    permit any

Standard IP access list permit Any

    permit any

Extended IP access list 101

    permit icmp any any conversion-error

    permit 234 host 172.30.40.1 host 123.23.23.2

Extended IP access list 102

    permit esp any any

    permit eigrp any any tos min-monetary-cost

Extended IP access list 103

    permit icmp any any 40 60

Extended IP access list CMP-NAT-ACL

    Dynamic Cluster-NAT permit ip any any

Extended MAC access list abc2

    permit host 1100.bb00.00cc host 2234.0123.2345     

Related Commands

Command	Description
access list	Configures a standard or extended numbered access list on the switch.
ip access list	Configures a named IP access list on the switch.
mac access-list extended	Configures a named or numbered MAC access list on the switch.

show 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(4)EA1	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

The following is sample output from the show boot command. Table 2-11 describes each field in the display.

Switch# show boot

BOOT path-list:      flash:c3550-i5q3l2-mz-121.4.EA1/c3550-i5q3l2-mz-121.4.EA1.bin

Config file:         flash:config.text

Enable Break:        no

Manual Boot:         yes

HELPER path-list:

NVRAM/Config file

      buffer size:   32768 

Table 2-11 show boot Field Descriptions

Field	Description
BOOT path-list	Displays a semicolon separated list of executable files to try to load and execute when automatically booting. If the BOOT environment variable is not set, the system attempts to load and execute the first executable image it can find by using a recursive, depth-first search through the Flash file system. In a depth-first search of a directory, each encountered subdirectory is completely searched before continuing the search in the original directory. If the BOOT variable is set but the specified images cannot be loaded, the system attempts to boot the first bootable file that it can find in the Flash file system.
Config file	Displays the filename that IOS uses to read and write a nonvolatile copy of the system configuration.
Enable Break	Displays whether a break during booting is enabled or disabled. If it is set to yes, on, or 1, you can interrupt the automatic boot process by pressing the Break key on the console after the Flash file system is initialized.
Manual Boot	Displays whether the switch automatically or manually boots. If it is set to no or 0, the boot loader attempts to automatically boot 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 buffersize	Specifies the size of the file system-simulated NVRAM in Flash memory.
boot config-file	Specifies the filename that IOS uses to read and write a nonvolatile copy of the system configuration.
boot enable-break	Enables interrupting the automatic boot process.
boot manual	Enables manually booting the switch during the next boot cycle.
boot system	Specifies the IOS image to load during the next boot cycle.

show changes

Use the show changes VLAN configuration command to display the differences between the virtual LAN (VLAN) database currently on the switch and the proposed VLAN database. You can also display the differences between the two for a selected VLAN.

show changes [vlan-id]

Syntax Description

vlan-id

(Optional) ID of the VLAN in the current or proposed database. If this variable is omitted, all the differences between the two VLAN databases are displayed, including the pruning state and Version 2 mode. Valid IDs are from 1 to 1005; do not enter leading zeroes.

Command Modes

VLAN configuration

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Examples

The following is sample output from the show changes command. It displays the differences between the current and proposed databases.

Switch(vlan)# show changes

DELETED:

  VLAN ISL Id: 4

    Name: VLAN0004

    Media Type: Ethernet

    VLAN 802.10 Id: 100004

    State: Operational

    MTU: 1500

DELETED:

  VLAN ISL Id: 6

    Name: VLAN0006

    Media Type: Ethernet

    VLAN 802.10 Id: 100006

    State: Operational

    MTU: 1500

MODIFIED:

  VLAN ISL Id: 7

    Current State: Operational

    Modified State: Suspended 

The following is sample output from the show changes 7 command. It displays the differences between VLAN 7 in the current database and the proposed database.

Switch(vlan)# show changes 7

MODIFIED:

  VLAN ISL Id: 7

    Current State: Operational

    Modified State: Suspended 

Related Commands

Command	Description
show current	Displays the current VLAN database on the switch or a selected VLAN from it.
show proposed	Displays the proposed VLAN database or a selected VLAN from it.

show class-map

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

show class-map [class-map-name] [ | {begin | exclude | include} expression]

Syntax Description

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

Command Modes

User EXEC

Command History

Release	Modification
12.1(4)EA1	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

The following is sample output from the show class-map command:

Switch# show class-map class1

 Class Map match-any class1 (id 4)

   Match ip dscp 11 21 

Related Commands

Command	Description
class-map	Creates a class map to be used for matching packets to the class whose name you specify.
match	Defines the match criteria (access control lists [ACLs], IP precedence, or IP Differentiated Services Code Point [DSCP] values) to classify traffic.

show cluster

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

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

Syntax Description

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

Command Modes

User EXEC

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Usage Guidelines

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

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 is displayed.

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

The following is sample output when this command is executed on the active command switch:

Switch# show cluster

Command switch for cluster "Ajang"

        Total number of members:        7

        Status:                         1 members are unreachable

        Time since last status change:  0 days, 0 hours, 2 minutes

        Redundancy:                     Enabled

                Standby command switch: Member 1

                Standby Group:          Ajang_standby

                Standby Group Number:   110

        Heartbeat interval:             8

        Heartbeat hold-time:            80

        Extended discovery hop count:   3 

The following is sample output when this command is executed on a member switch:

Switch1# show cluster

Member switch for cluster "hapuna"

        Member number:                  3

        Management IP address:          192.192.192.192

        Command switch mac address:     0000.0c07.ac14

        Heartbeat interval:             8

        Heartbeat hold-time:            80 

The following is sample output when this command is executed on a member switch that is configured as the standby command switch:

Switch# show cluster

Member switch for cluster "hapuna"

        Member number:                  3 (Standby command switch)

        Management IP address:          192.192.192.192

        Command switch mac address:     0000.0c07.ac14

        Heartbeat interval:             8

        Heartbeat hold-time:            80 

The following is sample output when this command is executed on the command switch that is separated from member 1:

Tahiti-24> show cluster

Command switch for cluster "Ajang"

        Total number of members:        7

        Status:                         1 members are unreachable

        Time since last status change:  0 days, 0 hours, 5 minutes

        Redundancy:                     Disabled

        Heartbeat interval:             8

        Heartbeat hold-time:            80

        Extended discovery hop count:   3 

The following is sample output when this command is executed on a member switch that is separated from the command switch:

Tahiti-12> show cluster

Member switch for cluster "hapuna"

        Member number:                  <UNKNOWN>

        Management IP address:          192.192.192.192

        Command switch mac address:     0000.0c07.ac14

        Heartbeat interval:             8

        Heartbeat hold-time:            80 

Related Commands

Command	Description
cluster enable	Enables a command-capable switch as the cluster command switch, assigns a cluster name, and optionally assigns a member number to it.
show cluster candidates	Displays a list of candidate switches.
show cluster members	Displays information about the cluster members.

show cluster candidates

Use the show cluster candidates user 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) MAC address of the cluster candidate.
| 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(4)EA1	This command was first introduced.

Usage Guidelines

You should enter this command only 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 display means switch member number. If E is displayed in the SN column, it means that the switch is discovered through extended discovery. 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 are not displayed, but the lines that contain Output are displayed.

Examples

The following is sample output from the show cluster candidates command:

Switch# show cluster candidates

                                                             |---Upstream---|

MAC Address    Name         Device Type      PortIf  FEC Hops SN PortIf  FEC

00d0.7961.c4c0 StLouis-2    WS-C3550-12T     Gi0/1        2   1  Fa0/11 

00d0.bbf5.e900 ldf-dist-128 WS-C3524-XL      Fa0/7        1   0  Fa0/24      

00e0.1e7e.be80 1900_Switch  1900             3        0   1   0  Fa0/11      

00e0.1e9f.7a00 Surfers-24   WS-C2924-XL      Fa0/5        1   0  Fa0/3       

00e0.1e9f.8c00 Surfers-12-2 WS-C2912-XL      Fa0/4        1   0  Fa0/7       

00e0.1e9f.8c40 Surfers-12-1 WS-C2912-XL      Fa0/1        1   0  Fa0/9       

The following is sample output from the show cluster candidates command that uses the MAC address of a member switch directly connected to the command switch:

Switch# show cluster candidates mac-address 00d0.7961.c4c0

Device 'Tahiti-12' with mac address number 00d0.7961.c4c0

        Device type:            cisco WS-C3512-XL

        Upstream MAC address:   00d0.796d.2f00 (Cluster Member 0)

        Local port:             Fa0/3   FEC number: 

        Upstream port:          Fa0/13  FEC Number: 

        Hops from cluster edge: 1

        Hops from command device: 1

The following is sample 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 'Ventura' with mac address number 0010.7bb6.1cc0

        Device type:            cisco WS-C2912MF-XL

        Upstream MAC address:   0010.7bb6.1cd4

        Local port:             Fa2/1   FEC number: 

        Upstream port:          Fa0/24  FEC Number: 

        Hops from cluster edge: 3

        Hops from command device: -

The following is sample output from the show cluster candidates detail command:

Switch# show cluster candidates detail

Device 'Tahiti-12' with mac address number 00d0.7961.c4c0

        Device type:            cisco WS-C3512-XL

        Upstream MAC address:   00d0.796d.2f00 (Cluster Member 1)

        Local port:             Fa0/3   FEC number: 

        Upstream port:          Fa0/13  FEC Number: 

        Hops from cluster edge: 1

        Hops from command device: 2

	Device '1900_Switch' with mac address number 00e0.1e7e.be80

        Device type:            cisco 1900

        Upstream MAC address:   00d0.796d.2f00 (Cluster Member 2)

        Local port:             3       FEC number: 0

        Upstream port:          Fa0/11  FEC Number: 

        Hops from cluster edge: 1

        Hops from command device: 2

Device 'Surfers-24' with mac address number 00e0.1e9f.7a00

        Device type:            cisco WS-C2924-XL

        Upstream MAC address:   00d0.796d.2f00 (Cluster Member 3)

        Local port:             Fa0/5   FEC number: 

        Upstream port:          Fa0/3   FEC Number: 

        Hops from cluster edge: 1

        Hops from command device: 2

Related Commands

Command	Description
show cluster	Displays the cluster status and a summary of the cluster to which the switch belongs.
show cluster members	Displays information about the cluster members.

show cluster members

Use the show cluster members user 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 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(4)EA1	This command was first introduced.

Usage Guidelines

You should enter this command only 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 are not displayed, but the lines that contain Output are displayed.

Examples

The following is sample output from the show cluster members command. The SN in the display means switch number.

Switch# show cluster members

                                                |---Upstream---|

SN MAC Address    Name         PortIf FEC Hops   SN PortIf  FEC  State

0  0002.4b29.2e00 StLouis1                 0                    Up   (Cmdr)

1  0030.946c.d740 tal-switch-1 Fa0/13      1     0  Gi0/1       Up

2  0002.b922.7180 nms-2820     10      0   2     1  Fa0/18      Up

3  0002.4b29.4400 SanJuan2     Gi0/1       2     1  Fa0/11      Up

4  0002.4b28.c480 GenieTest    Gi0/2       2     1  Fa0/9       Up

5   00b0.6404.f8c0 Palpatine           Gi2/1          1      0  Gi0/7           Up 

The following is sample output from the show cluster members for cluster member 3:

Switch# show cluster members 3

Device 'SanJuan2' with member number 3

        Device type:            cisco WS-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    

The following is sample 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 'GenieTest' with member number 4

        Device type:            cisco SeaHorse

        MAC address:            0002.4b28.c480

        Upstream MAC address:   0030.946c.d740 (Cluster member 1)

        Local port:             Gi0/2   FEC number:

        Upstream port:          Fa0/9   FEC Number:

        Hops from command device: 2

Device 'Palpatine' with member number 5

        Device type:            cisco WS-C2924M-XL

        MAC address:            00b0.6404.f8c0

        Upstream MAC address:   0002.4b29.2e00 (Cluster member 0)

        Local port:             Gi2/1   FEC number:

        Upstream port:          Gi0/7   FEC Number:

        Hops from command device: 1                            

Related Commands

Command	Description
show cluster	Displays the cluster status and a summary of the cluster to which the switch belongs.
show cluster candidates	Displays a list of candidate switches.

show current

Use the show current VLAN configuration command to display the current virtual LAN (VLAN) database on the switch or a selected VLAN from it.

show current [vlan-id]

Syntax Description

vlan-id

(Optional) ID of the VLAN in the current database. If this variable is omitted, the entire VLAN database displays, included the pruning state and Version 2 mode. Valid IDs are from 1 to 1005; do not enter leading zeroes.

Command Modes

VLAN configuration

Command History

Release	Modification
12.1(4)EA1	This command was first introduced.

Examples

The following is sample output from the show current command. It displays the current VLAN database.

Switch(vlan)# show current

VLAN ISL Id: 1

    Name: default

    Media Type: Ethernet

    VLAN 802.10 Id: 100001

    State: Operational

    MTU: 1500

    Translational Bridged VLAN: 1002

    Translational Bridged VLAN: 1003

  VLAN ISL Id: 20

    Name: VLAN0020

    Media Type: Ethernet

    VLAN 802.10 Id: 100020

    State: Operational

    MTU: 1500

<output truncated>

VLAN ISL Id: 1002

    Name: fddi-default

    Media Type: FDDI

    VLAN 802.10 Id: 101002

    State: Operational

    MTU: 1500

    Bridge Type: SRB