Table Of Contents
show controllers cpu-interface
show controllers ethernet-controller
show ip igmp snooping multicast
show mac-address-table address
show mac-address-table aging-time
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table notification
show mls qos aggregate-policer
spanning-tree extend system-id
spanning-tree loopguard default
spanning-tree portfast (global configuration)
spanning-tree portfast (interface configuration)
switchport port-security aging
2rmon collection stats
Use the rmon collection stats interface configuration command on the switch stack or on a standalone switch to collect Ethernet group statistics, which include utilization statistics about broadcast and multicast packets, and error statistics about Cyclic Redundancy Check (CRC) alignment errors and collisions. Use the no form of this command to return to the default setting.
rmon collection stats index [owner name]
no rmon collection stats index [owner name]
Syntax Description
index
Remote Network Monitoring (RMON) collection control index. The range is 1 to 65535.
owner name
(Optional) Owner of the RMON collection.
Defaults
The RMON statistics collection is disabled.
Command Modes
Interface configuration
Command History
Usage Guidelines
The RMON statistics collection command is based on hardware counters.
Examples
This example shows how to collect RMON statistics for the owner root on Gigabit Ethernet interface 0/1 of stack member 2:
Switch(config)# interface gigabitethernet2/0/1Switch(config-if)# rmon collection stats 2 owner rootYou can verify your setting by entering the show rmon statistics privileged EXEC command.
Related Commands
sdm prefer
Use the sdm prefer global configuration command on the switch stack or on a standalone switch to configure the template used in Switch Database Management (SDM) resource allocation. You can use a template to allocate system resources to best support the features being used in your application. Use a template to provide maximum system utilization for unicast routing or for VLAN configuration. Use the no form of this command to return to the default template.
sdm prefer {routing | vlan}
no sdm prefer
Syntax Description
Defaults
The default template provides a balance to all features.
Command Modes
Global configuration
Command History
Usage Guidelines
You must reload the switch for the configuration to take effect.
All stack members use the same SDM template, stored on the stack master. When a new switch member is added to a stack, as with the switch configuration file and VLAN database file, the SDM configuration that is stored on the stack master overrides the template configured on an individual switch.
Use the sdm prefer vlan global configuration command only on switches intended for Layer 2 switching with no routing. When you use the VLAN template, no system resources are reserved for routing entries and any routing is done through software. This overloads the central processing unit (CPU) and severely degrades routing performance.
Do not use the routing template if you do not have routing enabled on your switch. Entering the sdm prefer routing global configuration command prevents other features from using the memory allocated to unicast routing in the routing template (approximately 11 K).
Table 2-12 lists the approximate number of each resource supported in each of the three templates for a switch. The first seven rows in the tables (unicast MAC addresses through security ACEs) represent approximate hardware boundaries set when a template is selected. If a section of a hardware resource is full, all processing overflow is sent to the CPU, seriously impacting switch performance.
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.
.
The total number of routed interfaces is not limited by software and can be set to a number higher than shown in the tables. If the number of routed interfaces configured is lower or equal to the number in the tables, the number of entries in each category (Unicast MAC addresses, IGMP groups, and so on) for each template will be as shown. As the number of routed interfaces is increased, CPU utilization typically increases. If the number of routed interfaces is increased beyond the number shown in the tables, the number of supported entries in each category could decrease depending on other features that are enabled.
Examples
This example shows how to configure the routing template on the switch:
Switch(config)# sdm prefer routingSwitch(config)# exitSwitch# reloadThis example shows how to remove the routing template and to use the default template:
Switch(config)# no sdm prefer routingSwitch(config)# exitSwitch# reloadYou can verify your settings by entering the show sdm prefer privileged EXEC command.
Related Commands
Displays the current SDM template in use or displays the templates that can be used, with approximate resource allocation per feature.
service password-recovery
Use the service password-recovery global configuration command on the switch stack or on a standalone switch to enable the password-recovery mechanism (the default). This mechanism allows a user with physical access to the switch to hold down the Mode button and interrupt the boot process while the switch is powering up and to assign a new password. Use the no form of this command to disable part of the password-recovery functionality. When the password-recovery mechanism is disabled, interrupting the boot process is allowed only if the user agrees to set the system back to the default configuration.
service password-recovery
no service password-recovery
Syntax Description
This command has no arguments or keywords.
Defaults
The default action is for the password-recovery mechanism to be enabled.
Command Modes
Global configuration
Command History
Usage Guidelines
As a system administrator, you can use the no service password-recovery command to disable some of the functionality of the password recovery feature by allowing an end user to reset a password only by agreeing to return to the default configuration.
The password-recovery mechanism has been triggered, butis currently disabled. Access to the boot loader promptthrough the password-recovery mechanism is disallowed atthis point. However, if you agree to let the system bereset back to the default system configuration, accessto the boot loader prompt can still be allowed.Would you like to reset the system back to the default configuration (y/n)?If the user chooses not to reset the system back to the default configuration, the normal boot process continues, as if the Mode button had not been pressed. If you choose to reset the system back to the default configuration, the configuration file in flash memory is deleted and the VLAN database file, flash:vlan.dat (if present) is deleted.
Note
If you use the no service password-recovery command to control end user access to passwords, we recommend that you save a copy of the config file in a location away from the switch in case the end user uses the password recovery procedure and sets the system back to defaults. Do not keep a backup copy of the config file on the switch.
If the switch is operating in VTP transparent mode, we recommend that you also save a copy of the vlan.dat file in a location away from the switch.You can verify if password recovery is enabled or disabled by entering the show version privileged EXEC command.
Examples
This example shows how to disable password recovery on a switch or switch stack so that a user can only reset a password by agreeing to return to the default configuration.
Switch(config)# no service-password recoverySwitch(config)# exitRelated Commands
service-policy
Use the service-policy interface configuration command on the switch stack or on a standalone switch to apply a policy map defined by the policy-map command to the input of a particular interface. Use the no form of this command to remove the policy map and interface association.
service-policy input policy-map-name
no service-policy input policy-map-name
Syntax Description
Note
Defaults
No policy maps are attached to the interface.
Command Modes
Interface configuration
Command History
Usage Guidelines
Only one policy map per ingress interface is supported.
Classification using a port trust state (for example, mls qos trust [cos | dscp | ip-precedence] and a policy map (for example, service-policy input policy-map-name) are mutually exclusive. The last one configured overwrites the previous configuration.
Examples
This example shows how to apply plcmap1 to an ingress interface on stack member 2:
Switch(config)# interface gigabitethernet2/0/1Switch(config-if)# service-policy input plcmap1This example shows how to detach plcmap2 from an interface on stack member 2:
Switch(config)# interface gigabitethernet2/0/2Switch(config-if)# no service-policy input plcmap2You can verify your settings by entering the show running-config privileged EXEC command.
Related Commands
Creates or modifies a policy map that can be attached to multiple interfaces to specify a service policy.
Displays quality of service (QoS) policy maps.
session
Use the session privileged EXEC command on the stack master to access a specific stack member.
session stack-member-number
Syntax Description
stack-member-number
Specify the current stack member number. The stack member number is in the range from 1 through 9.
Defaults
No default is defined.
Command Modes
Global configuration
Command History
Usage Guidelines
When you access the stack member, its stack member number is appended to the system prompt.
Examples
This example shows how to access stack member 6:
Switch(config)# session 6Switch-6#Related Commands
set
Use the set policy-map class configuration command on the switch stack or on a standalone switch to classify IP traffic by setting a Differentiated Services Code Point (DSCP) or 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
Note
Defaults
No traffic classification is defined.
Command Modes
Policy-map class configuration
Command History
Usage Guidelines
The set command is mutually exclusive with the trust policy-map class configuration command within the same policy map.
For the set ip dscp new-dscp or the set ip precedence new-precedence command, you can enter a mnemonic name for a commonly-used value. For example, you can enter the set ip dscp af11 command, which is the as same entering the set ip dscp 10 command. You can enter the set ip precedence critical command, which is the same as entering the set ip precedence 5 command. For a list of supported mnemonics, enter the set ip dscp ? or the set ip precedence ? command to see the command-line help strings.
To return to policy-map configuration mode, use the exit command. To return to privileged EXEC mode, use the end command.
Examples
This example shows how to assign DSCP 10 to all FTP traffic without any policers:
Switch(config)# policy-map policy_ftpSwitch(config-pmap)# class ftp_classSwitch(config-pmap-c)# set ip dscp 10Switch(config-pmap)# exitYou can verify your settings by entering the show policy-map privileged EXEC command.
Related Commands
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
Usage Guidelines
When you use the setup command, make sure that you have this information:
•
•
•
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
This is an example of output from the setup command:
Switch# setup--- System Configuration Dialog ---Continue with configuration dialog? [yes/no]: yesAt 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 connectivityfor management of the system, extended setup will ask youto configure each interface on the system.Would you like to enter basic management setup? [yes/no]: yesConfiguring global parameters:Enter host name [Switch]:host-nameThe enable secret is a password used to protect access toprivileged EXEC and configuration modes. This password, afterentered, becomes encrypted in the configuration.Enter enable secret: enable-secret-passwordThe enable password is used when you do not specify anenable secret password, with some older software versions, andsome boot images.Enter enable password: enable-passwordThe virtual terminal password is used to protectaccess to the router over a network interface.Enter virtual terminal password: terminal-passwordConfigure SNMP Network Management? [no]: yesCommunity string [public]:Current interface summaryAny interface listed with OK? value "NO" does not have a valid configurationInterface IP-Address OK? Method Status ProtocolVlan1 172.20.135.202 YES NVRAM up upGigabitEthernet6/0/1 unassigned YES unset up upGigabitEthernet6/0/2 unassigned YES unset up downGigabitEthernet6/0/3 unassigned YES unset administratively down downGigabitEthernet6/0/4 unassigned YES unset up downGigabitEthernet6/0/5 unassigned YES NVRAM up downGigabitEthernet6/0/6 unassigned YES NVRAM up downGigabitEthernet6/0/7 unassigned YES unset up downGigabitEthernet6/0/8 unassigned YES unset up downGigabitEthernet6/0/9 unassigned YES unset administratively down downGigabitEthernet6/0/10 10.1.2.3 YES NVRAM up downGigabitEthernet6/0/11 unassigned YES unset up downGigabitEthernet6/0/12 unassigned YES unset up downPort-channel1 unassigned YES unset up downEnter interface name used to connect to themanagement network from the above interface summary: vlan1Configuring interface vlan1:Configure IP on this interface? [yes]: yesIP address for this interface: ip_addressSubnet mask for this interface [255.0.0.0]: subnet_maskWould you like to enable as a cluster command switch? [yes/no]: yesEnter cluster name: cluster-nameThe following configuration command script was created:hostname host-nameenable secret 5 $1$LiBw$0Xc1wyT.PXPkuhFwqyhVi0enable password enable-passwordline vty 0 15password terminal-passwordsnmp-server community public!no ip routing!interface GigabitEthernet6/0/1no ip address!interface GigabitEthernet6/0/2no ip address!...interface GigabitEthernet6/0/12no ip addresscluster enable cluster-name!endUse 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
show access-lists
Use the show access-lists privileged EXEC command to display access control lists (ACLs) configured on the switch.
show access-lists [name | number | hardware counters] [ | {begin | exclude | include} expression]
Syntax Description
Note
Command Modes
Privileged EXEC
Command History
Usage Guidelines
The switch supports only IP standard and extended access lists. Therefore, the allowed numbers are only 1 to 199 and 1300 to 2699.
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 access-lists command:
Switch# show access-listsSauron#show access-listsStandard IP access list 1permit 1.1.1.1permit 2.2.2.2permit anypermit 0.255.255.255, wildcard bits 12.0.0.0Standard IP access list videowizard_1-1-1-1permit 1.1.1.1Standard IP access list videowizard_10-10-10-10permit 10.10.10.10Extended IP access list 121permit ahp host 10.10.10.10 host 20.20.10.10 precedence routineExtended IP access list CMP-NAT-ACLDynamic Cluster-HSRP deny ip any anydeny ip any host 19.19.11.11deny ip any host 10.11.12.13Dynamic Cluster-NAT permit ip any anypermit ip host 10.99.100.128 anypermit ip host 10.46.22.128 anypermit ip host 10.45.101.64 anypermit ip host 10.45.20.64 anypermit ip host 10.213.43.128 anypermit ip host 10.91.28.64 anypermit ip host 10.99.75.128 anypermit ip host 10.38.49.0 anyThis is an example of output from the show access-lists hardware counters command:
Switch# show access-lists hardware countersL2 ACL INPUT StatisticsDrop: All frame count: 855Drop: All bytes count: 94143Drop And Log: All frame count: 0Drop And Log: All bytes count: 0Bridge Only: All frame count: 0Bridge Only: All bytes count: 0Bridge Only And Log: All frame count: 0Bridge Only And Log: All bytes count: 0Forwarding To CPU: All frame count: 0Forwarding To CPU: All bytes count: 0Forwarded: All frame count: 2121Forwarded: All bytes count: 180762Forwarded And Log: All frame count: 0Forwarded And Log: All bytes count: 0L3 ACL INPUT StatisticsDrop: All frame count: 0Drop: All bytes count: 0Drop And Log: All frame count: 0Drop And Log: All bytes count: 0Bridge Only: All frame count: 0Bridge Only: All bytes count: 0Bridge Only And Log: All frame count: 0Bridge Only And Log: All bytes count: 0Forwarding To CPU: All frame count: 0Forwarding To CPU: All bytes count: 0Forwarded: All frame count: 13586Forwarded: All bytes count: 1236182Forwarded And Log: All frame count: 0Forwarded And Log: All bytes count: 0L2 ACL OUTPUT StatisticsDrop: All frame count: 0Drop: All bytes count: 0Drop And Log: All frame count: 0Drop And Log: All bytes count: 0Bridge Only: All frame count: 0Bridge Only: All bytes count: 0Bridge Only And Log: All frame count: 0Bridge Only And Log: All bytes count: 0Forwarding To CPU: All frame count: 0Forwarding To CPU: All bytes count: 0Forwarded: All frame count: 232983Forwarded: All bytes count: 16825661Forwarded And Log: All frame count: 0Forwarded And Log: All bytes count: 0L3 ACL OUTPUT StatisticsDrop: All frame count: 0Drop: All bytes count: 0Drop And Log: All frame count: 0Drop And Log: All bytes count: 0Bridge Only: All frame count: 0Bridge Only: All bytes count: 0Bridge Only And Log: All frame count: 0Bridge Only And Log: All bytes count: 0Forwarding To CPU: All frame count: 0Forwarding To CPU: All bytes count: 0Forwarded: All frame count: 514434Forwarded: All bytes count: 39048748Forwarded And Log: All frame count: 0Forwarded And Log: All bytes count: 0Related Commands
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
Command Modes
Privileged EXEC
Command History
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 boot command. Table 2-13 describes each field in the display.
Switch# show bootBOOT path-list: flash:c3750-i5q3l2-mz-121.11.AX/c3750-i5q3l2-mz-121.11.AX.binConfig file: flash:config.textPrivate Config file: private-configEnable Break: noManual Boot: yesHELPER path-list:NVRAM/Config filebuffer size: 32768
Related Commands
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
Command Modes
User EXEC
Command History
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 class-map command:
Switch> show class-mapClass Map match-all videowizard_10-10-10-10 (id 2)Match access-group name videowizard_10-10-10-10Class Map match-any class-default (id 0)Match anyClass Map match-all dscp5 (id 3)Match ip dscp 5Related Commands
Creates a class map to be used for matching packets to the class whose name you specify.
Defines the match criteria to classify traffic.
show cluster
Use the show cluster user EXEC command to display the cluster status and a summary of the cluster to which the switch belongs. This command can be entered on the cluster command switch and cluster member switches.
show cluster [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
If you enter this command on a switch that is not a cluster member, the error message Not a management cluster member appears.
On a cluster member switch, this command displays the identity of the cluster command switch, the switch member number, and the state of its connectivity with the cluster command switch.
On a cluster command switch stack or cluster command switch, this command displays the cluster name and the total number of members. It also shows the cluster status and time since the status changed. If redundancy is enabled, it displays the primary and secondary command-switch information.
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 when the show cluster command is entered on the active cluster command switch:
Switch> show clusterCommand switch for cluster "Ajang"Total number of members: 7Status: 1 members are unreachableTime since last status change: 0 days, 0 hours, 2 minutesRedundancy: EnabledStandby command switch: Member 1Standby Group: Ajang_standbyStandby Group Number: 110Heartbeat interval: 8Heartbeat hold-time: 80Extended discovery hop count: 3This is an example of output when the show cluster command is entered on a cluster member switch:
Switch1> show clusterMember switch for cluster "hapuna"Member number: 3Management IP address: 192.192.192.192Command switch mac address: 0000.0c07.ac14Heartbeat interval: 8Heartbeat hold-time: 80This is an example of output when the show cluster command is entered on a cluster member switch that is configured as the standby cluster command switch:
Switch> show clusterMember switch for cluster "hapuna"Member number: 3 (Standby command switch)Management IP address: 192.192.192.192Command switch mac address: 0000.0c07.ac14Heartbeat interval: 8Heartbeat hold-time: 80This is an example of output when the show cluster command is entered on the cluster command switch that has lost connectivity with member 1:
Switch> show clusterCommand switch for cluster "Ajang"Total number of members: 7Status: 1 members are unreachableTime since last status change: 0 days, 0 hours, 5 minutesRedundancy: DisabledHeartbeat interval: 8Heartbeat hold-time: 80Extended discovery hop count: 3This is an example of output when the show cluster command is entered on a cluster member switch that has lost connectivity with the cluster command switch:
Switch> show clusterMember switch for cluster "hapuna"Member number: <UNKNOWN>Management IP address: 192.192.192.192Command switch mac address: 0000.0c07.ac14Heartbeat interval: 8Heartbeat hold-time: 80Related Commands
show cluster candidates
Use the show cluster candidates privileged EXEC command on a switch stack or on a cluster command switch to display a list of candidate switches.
show cluster candidates [detail | mac-address H.H.H.] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
This command is available only on the cluster command switch stack or cluster command switch.
If the switch is not a cluster command switch, the command displays an empty line at the prompt.
The SN in the display means switch member number. If E appears in the SN column, it means that the switch is discovered through extended discovery. If E does not appear in the SN column, it means that the switch member number is the upstream neighbor of the candidate switch. The hop count is the number of devices the candidate is from the cluster command switch.
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 cluster candidates command:
Switch> show cluster candidates|---Upstream---|MAC Address Name Device Type PortIf FEC Hops SN PortIf FEC00d0.7961.c4c0 StLouis-2 WS-C3750-12T Gi6/0/1 2 1 Fa0/1100d0.bbf5.e900 ldf-dist-128 WS-C3524-XL Fa0/7 1 0 Fa0/2400e0.1e7e.be80 1900_Switch 1900 3 0 1 0 Fa0/1100e0.1e9f.7a00 Surfers-24 WS-C2924-XL Fa0/5 1 0 Fa0/300e0.1e9f.8c00 Surfers-12-2 WS-C2912-XL Fa0/4 1 0 Fa0/700e0.1e9f.8c40 Surfers-12-1 WS-C2912-XL Fa0/1 1 0 Fa0/9This is an example of output from the show cluster candidates command that uses the MAC address of a cluster member switch directly connected to the cluster command switch:
Switch> show cluster candidates mac-address 00d0.7961.c4c0Device 'Tahiti-12' with mac address number 00d0.7961.c4c0Device type: cisco WS-C3750-12TUpstream MAC address: 00d0.796d.2f00 (Cluster Member 0)Local port: Gi6/0/1 FEC number:Upstream port: GI6/0/11 FEC Number:Hops from cluster edge: 1Hops from command device: 1This is an example of output from the show cluster candidates command that uses the MAC address of a cluster member switch three hops from the cluster edge:
Switch> show cluster candidates mac-address 0010.7bb6.1cc0Device 'Ventura' with mac address number 0010.7bb6.1cc0Device type: cisco WS-C2912MF-XLUpstream MAC address: 0010.7bb6.1cd4Local port: Fa2/1 FEC number:Upstream port: Fa0/24 FEC Number:Hops from cluster edge: 3Hops from command device: -This is an example of output from the show cluster candidates detail command:
Switch> show cluster candidates detailDevice 'Tahiti-12' with mac address number 00d0.7961.c4c0Device type: cisco WS-C3512-XLUpstream MAC address: 00d0.796d.2f00 (Cluster Member 1)Local port: Fa0/3 FEC number:Upstream port: Fa0/13 FEC Number:Hops from cluster edge: 1Hops from command device: 2Device '1900_Switch' with mac address number 00e0.1e7e.be80Device type: cisco 1900Upstream MAC address: 00d0.796d.2f00 (Cluster Member 2)Local port: 3 FEC number: 0Upstream port: Fa0/11 FEC Number:Hops from cluster edge: 1Hops from command device: 2Device 'Surfers-24' with mac address number 00e0.1e9f.7a00Device type: cisco WS-C2924-XLUpstream MAC address: 00d0.796d.2f00 (Cluster Member 3)Local port: Fa0/5 FEC number:Upstream port: Fa0/3 FEC Number:Hops from cluster edge: 1Hops from command device: 2Related Commands
Displays the cluster status and a summary of the cluster to which the switch belongs.
Displays information about the cluster members.
show cluster members
Use the show cluster members privileged EXEC command on a switch stack or on a cluster command switch to display information about the cluster members.
show cluster members [n | detail] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command is available only on the cluster command switch stack or cluster command switch.
If the cluster has no members, this command displays an empty line at the prompt.
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 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 State0 0002.4b29.2e00 StLouis1 0 Up (Cmdr)1 0030.946c.d740 tal-switch-1 Fa0/13 1 0 Gi0/1 Up2 0002.b922.7180 nms-2820 10 0 2 1 Fa0/18 Up3 0002.4b29.4400 SanJuan2 Gi0/1 2 1 Fa0/11 Up4 0002.4b28.c480 GenieTest Gi0/2 2 1 Fa0/9 UpThis is an example of output from the show cluster members for cluster member 3:
Switch# show cluster members 3Device 'SanJuan2' with member number 3Device type: cisco WS-C3750-12TMAC address: 0002.4b29.4400Upstream MAC address: 0030.946c.d740 (Cluster member 1)Local port: Gi6/0/1 FEC number:Upstream port: GI6/0/11 FEC Number:Hops from command device: 2This is an example of output from the show cluster members detail command:
Switch# show cluster members detailDevice 'StLouis1' with member number 0 (Command Switch)Device type: cisco WS-C3750-12TMAC address: 0002.4b29.2e00Upstream MAC address:Local port: FEC number:Upstream port: FEC Number:Hops from command device: 0Device 'tal-switch-14' with member number 1Device type: cisco WS-C3548-XLMAC address: 0030.946c.d740Upstream MAC address: 0002.4b29.2e00 (Cluster member 0)Local port: Fa0/13 FEC number:Upstream port: Gi0/1 FEC Number:Hops from command device: 1Device 'nms-2820' with member number 2Device type: cisco 2820MAC address: 0002.b922.7180Upstream MAC address: 0030.946c.d740 (Cluster member 1)Local port: 10 FEC number: 0Upstream port: Fa0/18 FEC Number:Hops from command device: 2Device 'SanJuan2' with member number 3Device type: cisco WS-C3750-12TMAC address: 0002.4b29.4400Upstream MAC address: 0030.946c.d740 (Cluster member 1)Local port: Gi6/0/1 FEC number:Upstream port: Fa6/0/11 FEC Number:Hops from command device: 2Device 'GenieTest' with member number 4Device type: cisco SeaHorseMAC address: 0002.4b28.c480Upstream MAC address: 0030.946c.d740 (Cluster member 1)Local port: Gi0/2 FEC number:Upstream port: Fa0/9 FEC Number:Hops from command device: 2Device 'Palpatine' with member number 5Device type: cisco WS-C2924M-XLMAC address: 00b0.6404.f8c0Upstream MAC address: 0002.4b29.2e00 (Cluster member 0)Local port: Gi2/1 FEC number:Upstream port: Gi0/7 FEC Number:Hops from command device: 1Related Commands
Displays the cluster status and a summary of the cluster to which the switch belongs.
Displays a list of candidate switches.
show controllers cpu-interface
Use the show controllers cpu-interface privileged EXEC command to display the state of the CPU network interface application-specific integrated circuit (ASIC) and the send and receive statistics for packets reaching the CPU.
show controllers cpu-interface [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This display provides information that might be useful 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 a partial output example from the show controllers cpu- interface command:
Switch# show controllers cpu-interfacecpu-queue-frames retrieved dropped invalid hol-block----------------- ---------- ---------- ---------- ----------rpc 4523063 0 0 0stp 1545035 0 0 0ipc 1903047 0 0 0routing protocol 96145 0 0 0L2 protocol 79596 0 0 0remote console 0 0 0 0sw forwarding 5756 0 0 0host 225646 0 0 0broadcast 46472 0 0 0cbt-to-spt 0 0 0 0igmp snooping 68411 0 0 0icmp 0 0 0 0logging 0 0 0 0rpf-fail 0 0 0 0queue14 0 0 0 0cpu heartbeat 1710501 0 0 0Supervisor ASIC receive-queue parameters----------------------------------------queue 0 maxrecevsize 5EE pakhead 1419A20 paktail 13EAED4queue 1 maxrecevsize 5EE pakhead 15828E0 paktail 157FBFCqueue 2 maxrecevsize 5EE pakhead 1470D40 paktail 1470FE4queue 3 maxrecevsize 5EE pakhead 19CDDD0 paktail 19D02C8<output truncated>Supervisor ASIC Mic Registers------------------------------MicDirectPollInfo 80000800MicIndicationsReceived 00000000MicInterruptsReceived 00000000MicPcsInfo 0001001FMicPlbMasterConfiguration 00000000MicRxFifosAvailable 00000000MicRxFifosReady 0000BFFFMicTimeOutPeriod: FrameTOPeriod: 00000EA6 DirectTOPeriod: 00004000<output truncated>MicTransmitFifoInfo:Fifo0: StartPtrs: 038C2800 ReadPtr: 038C2C38WritePtrs: 038C2C38 Fifo_Flag: 8A800800Weights: 001E001EFifo1: StartPtr: 03A9BC00 ReadPtr: 03A9BC60WritePtrs: 03A9BC60 Fifo_Flag: 89800400writeHeaderPtr: 03A9BC60Fifo2: StartPtr: 038C8800 ReadPtr: 038C88E0WritePtrs: 038C88E0 Fifo_Flag: 88800200writeHeaderPtr: 038C88E0Fifo3: StartPtr: 03C30400 ReadPtr: 03C30638WritePtrs: 03C30638 Fifo_Flag: 89800400writeHeaderPtr: 03C30638Fifo4: StartPtr: 03AD5000 ReadPtr: 03AD50A0WritePtrs: 03AD50A0 Fifo_Flag: 89800400writeHeaderPtr: 03AD50A0Fifo5: StartPtr: 03A7A600 ReadPtr: 03A7A600WritePtrs: 03A7A600 Fifo_Flag: 88800200writeHeaderPtr: 03A7A600Fifo6: StartPtr: 03BF8400 ReadPtr: 03BF87F0WritePtrs: 03BF87F0 Fifo_Flag: 89800400<output truncated>Related Commands
show controllers ethernet-controller
Use the show controllers ethernet-controller privileged EXEC command without keywords to display per-interface send and receive statistics read from the hardware. Use with the phy keyword to display the interface internal registers or the port-asic keyword to display information about the port application-specific integrated circuit (ASIC).
show controllers ethernet-controller [ [interface-id] [phy [detail] | port-asic {configuration | statistics}] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This display without keywords provides traffic statistics, basically the RMON statistics for all interfaces or for the specified interface.
When you enter the phy or port-asic keywords, the displayed information is useful primarily for Cisco technical support representatives troubleshooting the switch.
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 an interface:
Switch# show controllers ethernet-controller GigabitEthernet6/0/1Transmit GigabitEthernet6/0/1 Receive0 Bytes 0 Bytes0 Unicast frames 0 Unicast frames0 Multicast frames 0 Multicast frames0 Broadcast frames 0 Broadcast frames0 Too old frames 0 Unicast bytes0 Deferred frames 0 Multicast bytes0 MTU exceeded frames 0 Broadcast bytes0 1 collision frames 0 Alignment errors0 2 collision frames 0 FCS errors0 3 collision frames 0 Oversize frames0 4 collision frames 0 Undersize frames0 5 collision frames 0 Collision fragments0 6 collision frames0 7 collision frames 0 Minimum size frames0 8 collision frames 0 65 to 127 byte frames0 9 collision frames 0 128 to 255 byte frames0 10 collision frames 0 256 to 511 byte frames0 11 collision frames 0 512 to 1023 byte frames0 12 collision frames 0 1024 to 1518 byte frames0 13 collision frames 0 Overrun frames0 14 collision frames 0 Pause frames0 15 collision frames 0 Symbol error frames0 Excessive collisions0 Late collisions 0 Invalid frames, too large0 VLAN discard frames 0 Valid frames, too large0 Excess defer frames 0 Invalid frames, too small0 64 byte frames 0 Valid frames, too small0 127 byte frames0 255 byte frames 0 Too old frames0 511 byte frames 0 Valid oversize frames0 1023 byte frames 0 System FCS error frames0 1518 byte frames 0 RxPortFifoFull drop frame0 Too large frames0 Good (1 coll) framesThis is an example of output from the show controllers ethernet-controller phy command:
Switch# show controllers ethernet-controller phyGigabitEthernet1/0/1 (gpn: 3, port-number: 1)-----------------------------------------------------------Control Register : 0001 0001 0100 0000Control STATUS : 0111 1001 0100 1001Phy ID 1 : 0000 0001 0100 0001Phy ID 2 : 0000 1100 0010 0100Auto-Negotiation Advertisement : 0000 0011 1110 0001Auto-Negotiation Link Partner : 0000 0000 0000 0000Auto-Negotiation Expansion Reg : 0000 0000 0000 0100Next Page Transmit Register : 0010 0000 0000 0001Link Partner Next page Registe : 0000 0000 0000 00001000BASE-T Control Register : 0000 1111 0000 00001000BASE-T Status Register : 0100 0000 0000 0000Extended Status Register : 0011 0000 0000 0000PHY Specific Control Register : 0000 0000 0011 1000PHY Specific Status Register : 1000 0001 0100 0000Interrupt Enable : 0000 0000 0000 0000Interrupt Status : 0000 0000 0100 0000Extended PHY Specific Control : 0000 1100 1110 0000Receive Error Counter : 0000 0000 0000 0000Reserved Register 1 : 0000 0000 0000 0000Global Status : 0000 0000 0000 0000LED Control : 0100 0001 0000 0000Manual LED Override : 0000 1000 0010 1010Extended PHY Specific Control : 0000 0000 0000 1010Disable Receiver 1 : 0000 0000 0000 00GigabitEthernet1/0/2 (gpn: 4, port-number: 2)-----------------------------------------------------------Control Register : 0011 0001 0000 0000Control STATUS : 0111 1000 0000 1001Phy ID 1 : 0000 0000 0001 0011Phy ID 2 : 0111 1000 1111 1011Auto-Negotiation Advertisement : 0000 0011 1110 0001Auto-Negotiation Link Partner : 0000 0000 0000 0000Auto-Negotiation Expansion Reg : 0000 0000 0000 0100Next Page Transmit Register : 0010 0000 0000 0001Auto-Negotiation Expansion Reg : 0000 0000 0000 0100<output truncated>This is an example of output from the show controllers ethernet-controller port-asic configuration command:
Switch# show controllers ethernet-controller port-asic configuration========================================================================Switch 4, PortASIC 0 Registers------------------------------------------------------------------------DeviceType : 000101BCReset : 00000000PmadMicConfig : 00000001PmadMicDiag : 00000003SupervisorReceiveFifoSramInfo : 000007D0 000007D0 40000000SupervisorTransmitFifoSramInfo : 000001D0 000001D0 40000000GlobalStatus : 00000800IndicationStatus : 00000000IndicationStatusMask : FFFFFFFFInterruptStatus : 00000000InterruptStatusMask : 01FFE800SupervisorDiag : 00000000SupervisorFrameSizeLimit : 000007C8SupervisorBroadcast : 000A0F01GeneralIO : 000003F9 00000000 00000004StackPcsInfo : FFFF1000 860329BD 5555FFFF FFFFFFFFFF0FFF00 86020000 5555FFFF 00000000StackRacInfo : 73001630 00000003 7F001644 0000000324140003 FD632B00 18E418E0 FFFFFFFFStackControlStatus : 18E418E0stackControlStatusMask : FFFFFFFFTransmitBufferFreeListInfo : 00000854 00000800 00000FF8 000000000000088A 0000085D 00000FF8 00000000TransmitRingFifoInfo : 00000016 00000016 40000000 000000000000000C 0000000C 40000000 00000000TransmitBufferInfo : 00012000 00000FFF 00000000 00000030TransmitBufferCommonCount : 00000F7ATransmitBufferCommonCountPeak : 0000001ETransmitBufferCommonCommonEmpty : 000000FFNetworkActivity : 00000000 00000000 00000000 02400000DroppedStatistics : 00000000FrameLengthDeltaSelect : 00000001SneakPortFifoInfo : 00000000MacInfo : 0EC0801C 00000001 0EC0801B 0000000100C0001D 00000001 00C0001E 00000001This is an example of output from the show controllers ethernet-controller port-asic statistics command:
Switch# show controllers ethernet-controller port-asic statistics===========================================================================Switch 1, PortASIC 0 Statistics---------------------------------------------------------------------------0 RxQ-0, wt-0 enqueue frames 0 RxQ-0, wt-0 drop frames4118966 RxQ-0, wt-1 enqueue frames 0 RxQ-0, wt-1 drop frames0 RxQ-0, wt-2 enqueue frames 0 RxQ-0, wt-2 drop frames0 RxQ-1, wt-0 enqueue frames 0 RxQ-1, wt-0 drop frames296 RxQ-1, wt-1 enqueue frames 0 RxQ-1, wt-1 drop frames2836036 RxQ-1, wt-2 enqueue frames 0 RxQ-1, wt-2 drop frames0 RxQ-2, wt-0 enqueue frames 0 RxQ-2, wt-0 drop frames0 RxQ-2, wt-1 enqueue frames 0 RxQ-2, wt-1 drop frames158377 RxQ-2, wt-2 enqueue frames 0 RxQ-2, wt-2 drop frames0 RxQ-3, wt-0 enqueue frames 0 RxQ-3, wt-0 drop frames0 RxQ-3, wt-1 enqueue frames 0 RxQ-3, wt-1 drop frames0 RxQ-3, wt-2 enqueue frames 0 RxQ-3, wt-2 drop frames15 TxBufferFull Drop Count 0 Rx Fcs Error Frames0 TxBufferFrameDesc BadCrc16 0 Rx Invalid Oversize Frames0 TxBuffer Bandwidth Drop Cou 0 Rx Invalid Too Large Frames0 TxQueue Bandwidth Drop Coun 0 Rx Invalid Too Large Frames0 TxQueue Missed Drop Statist 0 Rx Invalid Too Small Frames74 RxBuffer Drop DestIndex Cou 0 Rx Too Old Frames0 SneakQueue Drop Count 0 Tx Too Old Frames0 Learning Queue Overflow Fra 0 System Fcs Error Frames0 Learning Cam Skip Count15 Sup Queue 0 Drop Frames 0 Sup Queue 8 Drop Frames0 Sup Queue 1 Drop Frames 0 Sup Queue 9 Drop Frames0 Sup Queue 2 Drop Frames 0 Sup Queue 10 Drop Frames0 Sup Queue 3 Drop Frames 0 Sup Queue 11 Drop Frames0 Sup Queue 4 Drop Frames 0 Sup Queue 12 Drop Frames0 Sup Queue 5 Drop Frames 0 Sup Queue 13 Drop Frames0 Sup Queue 6 Drop Frames 0 Sup Queue 14 Drop Frames0 Sup Queue 7 Drop Frames 0 Sup Queue 15 Drop Frames===========================================================================Switch 1, PortASIC 1 Statistics---------------------------------------------------------------------------0 RxQ-0, wt-0 enqueue frames 0 RxQ-0, wt-0 drop frames52 RxQ-0, wt-1 enqueue frames 0 RxQ-0, wt-1 drop frames0 RxQ-0, wt-2 enqueue frames 0 RxQ-0, wt-2 drop frames<output truncated>Related Commands
show controllers tcam
Use the show controllers tcam privileged EXEC command to display the state of the registers for all ternary content addressable memory (TCAM) in the system and for all TCAM interface application-specific integrated circuits (ASICs) that are CAM controllers.
show controllers tcam [detail] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This display provides information that might be useful 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 tcam command:
Switch# show controllers tcam------------------------------------------------------------------------TCAM-0 Registers------------------------------------------------------------------------REV: 00B30103SIZE: 00080040ID: 00000000CCR: 00000000_F0000020RPID0: 00000000_00000000RPID1: 00000000_00000000RPID2: 00000000_00000000RPID3: 00000000_00000000HRR0: 00000000_E000CAFCHRR1: 00000000_00000000HRR2: 00000000_00000000HRR3: 00000000_00000000HRR4: 00000000_00000000HRR5: 00000000_00000000HRR6: 00000000_00000000HRR7: 00000000_00000000<output truncated>GMR31: FF_FFFFFFFF_FFFFFFFFGMR32: FF_FFFFFFFF_FFFFFFFFGMR33: FF_FFFFFFFF_FFFFFFFF=============================================================================TCAM related PortASIC 1 registers=============================================================================LookupType: 89A1C67D_24E35F00LastCamIndex: 0000FFE0LocalNoMatch: 000069E0ForwardingRamBaseAddress:00022A00 0002FE00 00040600 0002FE00 0000D40000000000 003FBA00 00009000 00009000 0004060000000000 00012800 00012900Related Commands
show dot1x
Use the show dot1x privileged EXEC command to display 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
Command Modes
Privileged EXEC
Command History
Usage Guidelines
If you do not specify an interface, global parameters and a summary are displayed. If you specify an interface, details for that interface are displayed.
If you specify the statistics keyword without the interface interface-id option, statistics are displayed for all interfaces. If you specify the statistics keyword with the interface interface-id option, statistics are displayed for the specified interface.
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 dot1x privileged EXEC command:
Switch# show dot1xGlobal 802.1X Parametersreauth-enabled yesreauth-period 3600quiet-period 60tx-period 30supp-timeout 30server-timeout 30reauth-max 2max-req 2802.1X Port SummaryPort Name Status Mode AuthorizedGi1/0/1 disabled n/a n/aGi1/0/2 enabled Auto (negotiate) yesGi1/0/3 disabled n/a n/aGi1/0/4 disabled n/a n/a<output truncated>Gi2/0/1 disabled n/a n/aGi2/0/2 disabled n/a n/aGi2/0/3 enabled Auto (negotiate) yes<output truncated>802.1X Port Details802.1X is disabled on GigabitEthernet1/0/1802.1X is enabled on GigabitEthernet1/0/2Status UnauthorizedPort-control AutoSupplicant 0060.b0f8.fbfbMultiple Hosts DisallowedCurrent Identifier 2Authenticator State MachineState AUTHENTICATINGReauth Count 1Backend State MachineState RESPONSERequest Count 0Identifier (Server) 2Reauthentication State MachineState INITIALIZE802.1X is disabled on GigabitEthernet1/0/3802.1X is disabled on GigabitEthernet1/0/4<output truncated>
Note
In the 802.1X Port Summary section of the display, 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 software configuration guide for this release.
This is an example of output from the show dot1x interface gigabitethernet1/0/2 privileged EXEC command. Table 2-14 describes the fields in the display.
Switch# show dot1x interface gigabitethernet1/0/2802.1X is enabled on GigabitEthernet1/0/2Status AuthorizedPort-control AutoSupplicant 0060.b0f8.fbfbMultiple Hosts DisallowedCurrent Identifier 3Authenticator State MachineState AUTHENTICATEDReauth Count 0Backend State MachineState IDLERequest Count 0Identifier (Server) 2Reauthentication State MachineState INITIALIZE
Table 2-14 show dot1x interface Field Description
802.1X is enabled on GigabitEthernet1/0/2
Status
Status of the port (authorized or unauthorized). The status of a port is displayed as authorized if the dot1x port-control interface configuration command is set to auto and has successfully completed authentication.
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 display show internal state information. For a detailed description of these state machines and their settings, refer to the IEEE 802.1X specification.
This is an example of output from the show dot1x statistics interface gigabitethernet2/0/3 command. Table 2-15 describes the fields in the display.
Switch# show dot1x statistics interface gigabitethernet2/0/3GigabitEthernet2/0/3Rx: EAPOL EAPOL EAPOL EAPOL EAP EAP EAPStart Logoff Invalid Total Resp/Id Resp/Oth LenError0 0 0 21 0 0 0Last LastEAPOLVer EAPOLSrc1 0002.4b29.2a03Tx: EAPOL EAP EAPTotal Req/Id Req/Oth622 445 0
Related Commands
show dtp
Use the show dtp privileged EXEC command to display Dynamic Trunking Protocol (DTP) information for the switch or for a specified interface.
show dtp [interface interface-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 dtp command:
Switch# show dtpGlobal DTP informationSending DTP Hello packets every 30 secondsDynamic Trunk timeout is 300 seconds21 interfaces using DTPThis is an example of output from the show dtp interface command:
Switch# show dtp interface gigabitethernet1/0/1DTP information for GigabitEthernet1/0/1:TOS/TAS/TNS: ACCESS/AUTO/ACCESSTOT/TAT/TNT: NATIVE/NEGOTIATE/NATIVENeighbor address 1: 000943A7D081Neighbor address 2: 000000000000Hello timer expiration (sec/state): 1/RUNNINGAccess timer expiration (sec/state): never/STOPPEDNegotiation timer expiration (sec/state): never/STOPPEDMultidrop timer expiration (sec/state): never/STOPPEDFSM state: S2:ACCESS# times multi & trunk 0Enabled: yesIn STP: noStatistics----------3160 packets received (3160 good)0 packets dropped0 nonegotiate, 0 bad version, 0 domain mismatches, 0 bad TLVs, 0 other6320 packets output (6320 good)3160 native, 3160 software encap isl, 0 isl hardware native0 output errors0 trunk timeouts1 link ups, last link up on Mon Mar 01 1993, 01:02:290 link downsRelated Commands
show interfaces trunk
Displays interface trunking information.
show env
Use the show env user EXEC command to display fan, temperature, redundant power system (RPS) availability, and power information for the switch being accessed (standalone switch or stack master or stack member). Use with the stack keyword to display all information for the stack or for a specified switch in the stack.
show env {all | fan | power | rps | stack [switch-number] | temperature} [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
Use the show access-lists privileged EXEC command to access information from a specific switch other than the master.
You can use the show env stack [switch-number] command to display information about any switch in the stack from any switch member.
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 env all command issued from the master switch or a standalone switch:
Switch> show env allFAN is OKTEMPERATURE is OKPOWER is OKRPS is AVAILABLEThis is an example of output from the show env fan command:
Switch> show env fanFAN is OKThis is an example of output from the show env stack command:
Switch> show env stackSWITCH: 1FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTSWITCH: 2FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTSWITCH: 3FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTSWITCH: 4FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTSWITCH: 5FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTSWITCH: 6FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTThis example shows how to display information about stack member 3 from the master switch:
Switch> show env stack 3SWITCH: 3FAN is OKTEMPERATURE is OKPOWER is OKRPS is NOT PRESENTshow errdisable detect
Use the show errdisable detect user EXEC command to display error-disable detection status.
show errdisable detect [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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.
On the Catalyst 3750 switch, a displayed gbic-invalid error reason refers to an invalid small form-factor pluggable (SFP) interface.
Examples
This is an example of output from the show errdisable detect command:
Switch> show errdisable detectErrDisable Reason Detection status----------------- ----------------pagp-flap Enableddtp-flap Enabledlink-flap Enabledgbic-invalid EnabledRelated Commands
Enables error-disable detection for a specific cause or all causes.
Displays error condition recognition information.
Displays error-disable recovery timer information.
show interfaces status
Displays interface status or a list of interfaces in error-disabled state.
show errdisable flap-values
Use the show errdisable flap-values user EXEC command to display conditions that cause an error to be recognized for a cause.
show errdisable flap-values [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
The Flaps column in the display shows how many changes to the state within the specified time interval will cause an error to be detected and a port to be disabled. For example, the display shows that an error will be assumed and the port shut down if three Dynamic Trunking Protocol (DTP)-state (port mode access/trunk) or Port Aggregation Protocol (PAgP) flap changes occur during a 30-second interval, or if 5 link-state (link up/down) changes occur during a 10-second interval.
ErrDisable Reason Flaps Time (sec)----------------- ------ ----------pagp-flap 3 30dtp-flap 3 30link-flap 5 10Expressions 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 errdisable flap-values command:
Switch> show errdisable flap-valuesErrDisable Reason Flaps Time (sec)----------------- ------ ----------pagp-flap 3 30dtp-flap 3 30link-flap 5 10Related Commands
Enables error-disable detection for a specific cause or all causes.
Displays error-disable detection status.
Displays error-disable recovery timer information.
show interfaces status
Displays interface status or a list of interfaces in error-disabled state.
show errdisable recovery
Use the show errdisable recovery user EXEC command to display the error-disable recovery timer information.
show errdisable recovery [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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.
On the Catalyst 3750 switch, a gbic-invalid error-disable reason refers to an invalid small form-factor pluggable (SFP) interface.
Examples
This is an example of output from the show errdisable recovery command:
Switch> show errdisable recoveryErrDisable Reason Timer Status----------------- --------------udld Disabledbpduguard Disabledchannel-misconfig Disabledvmps Disabledpagp-flap Disableddtp-flap Disabledlink-flap Disabledpsecure-violation Disabledgbic-invalid Disabledloopback DisabledTimer interval:300 secondsInterfaces that will be enabled at the next timeout:Interface Errdisable reason Time left(sec)--------- ----------------- --------------Gi1/0/4 link-flap 279Related Commands
Configures the recover mechanism variables.
Displays error disable detection status.
Displays error condition recognition information.
show interfaces status
Displays interface status or a list of interfaces in error-disabled state.
show etherchannel
Use the show etherchannel user EXEC command to display EtherChannel information for a channel.
show etherchannel [channel-group-number] {brief | detail | load-balance | port | port-channel | summary} [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
If you do not specify a channel-group, all channel groups are displayed.
In the output, the Passive port list field is displayed only for Layer 3 port channels. This field means that the physical interface, which is still not up, is configured to be in the channel group (and indirectly is in the only port channel in the channel group).
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 etherchannel 1 detail command:
Switch> show etherchannel 1 detailGroup state = L2Ports: 2 Maxports = 8Port-channels: 1 Max Port-channels = 1Ports in the group:-------------------Port: Gi1/0/1------------Port state = Up Mstr In-BndlChannel group = 1 Mode = Desirable-Sl Gcchange = 0Port-channel = Po1 GC = 0x00010001 Pseudo port-channel = Po1Port index = 0 Load = 0x00Flags: 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 GroupPort Flags State Timers Interval Count Priority Method IfindexGi1/0/1 SC U6/S7 H 30s 1 128 Any 16Partner's information:Partner Partner Partner Partner GroupPort Name Device ID Port Age Flags Cap.Gi0/1 vegas-p2 0002.4b29.4600 Gi0/1 9s SC 10001Age of the port in the current state: 00d:00h:07m:52sPort: Gi1/0/2------------Port state = Up Mstr In-BndlChannel group = 1 Mode = Desirable-Sl Gcchange = 0Port-channel = Po1 GC = 0x00010001 Pseudo port-channel = Po1Port index = 0 Load = 0x00Flags: 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 GroupPort Flags State Timers Interval Count Priority Method IfindexGi1/0/2 SC U6/S7 H 30s 1 128 Any 16Partner's information:Partner Partner Partner Partner GroupPort Name Device ID Port Age Flags Cap.Gi0/2 vegas-p2 0002.4b29.4600 Gi0/2 4s SC 10001Age of the port in the current state: 00d:00h:07m:55sPort-channels in the group:----------------------Port-channel: Po1------------Age of the Port-channel = 00d:00h:08m:28sLogical slot/port = 1/0 Number of ports = 2GC = 0x00010001 HotStandBy port = nullPort state = Port-channel Ag-InusePorts in the Port-channel:Index Load Port EC state------+------+------+--------------------0 00 Gi1/0/1 desirable-sl0 00 Gi1/0/2 desirable-slTime since last port bundled: 00d:00h:07m:56s Gi1/0/1This is an example of output from the show etherchannel 1 summary command:
Switch> show etherchannel 1 summaryFlags: D - down P - in port-channelI - stand-alone s - suspendedR - Layer3 S - Layer2U - port-channel in useGroup Port-channel Ports-----+------------+-----------------------------------------------------------1 Po1(SU) Gi1/0/1(P) Gi1/0/2(P)This is an example of output from the show etherchannel 1 brief command:
Switch> show etherchannel 1 briefGroup state = L2Ports: 2 Maxports = 8Port-channels: 1 Max Port-channels = 1This is an example of output from the show etherchannel 1 port-channel command:
Switch> show etherchannel 1 port-channelPort-channels in the group:----------------------Port-channel: Po1------------Age of the Port-channel = 00d:00h:10m:41sLogical slot/port = 1/0 Number of ports = 2GC = 0x00010001 HotStandBy port = nullPort state = Port-channel Ag-InusePorts in the Port-channel:Index Load Port EC state------+------+------+-------------------0 00 Gi1/0/1 desirable-sl0 00 Gi1/0/2 desirable-slTime since last port bundled: 00d:00h:10m:08s Gi1/0/1Related Commands
Assigns an Ethernet interface to an EtherChannel group.
Accesses or creates the port channel.
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 | counters | 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, stack member, module, and port number) and port channels. The valid port-channel range is 1 to 12.
vlan vlan-id
(Optional) VLAN identification. The range is 1 to 4094.
accounting
(Optional) Display accounting information on the interface, including active protocols and input and output packets and octets.
counters
(Optional) See the show interfaces counters command.
description
(Optional) Display the administrative status and description set for an interface.
etherchannel
(Optional) Display interface EtherChannel information.
flowcontrol
(Optional) Display interface flowcontrol information
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, including port blocking and port protection settings.
trunk
Display interface trunk information. If you do not specify an interface, information for only active trunking ports is displayed.
| 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
Command Modes
Privileged EXEC
Command History
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 interfaces command for Gigabit Ethernet interface 3 on stack member 3:
Switch# show interfaces gigabitethernet 3/0/3GigabitEthernet3/0/3 is down, line protocol is downHardware is Gigabit Ethernet, address is 0009.43a7.d085 (bia 0009.43a7.d085)MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Auto-duplex, Auto-speedinput flow-control is off, output flow-control is offARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang neverLast clearing of "show interface" counters neverInput queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0Queueing strategy: fifoOutput queue :0/40 (size/max)5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec2 packets input, 1040 bytes, 0 no bufferReceived 0 broadcasts, 0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 watchdog, 0 multicast, 0 pause input0 input packets with dribble condition detected4 packets output, 1040 bytes, 0 underruns0 output errors, 0 collisions, 3 interface resets0 babbles, 0 late collision, 0 deferred0 lost carrier, 0 no carrier, 0 PAUSE output0 output buffer failures, 0 output buffers swapped outThis is an example of output from the show interfaces accounting command.
Switch# show interfaces accountingVlan1Protocol Pkts In Chars In Pkts Out Chars OutIP 1094395 131900022 559555 84077157Spanning Tree 283896 17033760 42 2520ARP 63738 3825680 231 13860Interface Vlan2 is disabledVlan7Protocol Pkts In Chars In Pkts Out Chars OutNo traffic sent or received on this interface.Vlan31Protocol Pkts In Chars In Pkts Out Chars OutNo traffic sent or received on this interface.GigabitEthernet1/0/1Protocol Pkts In Chars In Pkts Out Chars OutNo traffic sent or received on this interface.GigabitEthernet1/0/2Protocol Pkts In Chars In Pkts Out Chars OutNo traffic sent or received on this interface.GigabitEthernet1/0/3Protocol Pkts In Chars In Pkts Out Chars OutNo traffic sent or received on this interface.<output truncated>This is an example of output from the show interfaces gigabitethernet 1/0/4 description command when the interface has been described as Connects to Marketing by using the description interface configuration command.
Switch# show interfaces gigabitethernet1/0/4 descriptionInterface Status Protocol DescriptionGi1/0/4 up down Connects to MarketingThis is an example of output from the show interfaces etherchannel command when port channels are configured on the switch:
Switch# show interfaces etherchannel----Port-channel1:Age of the Port-channel = 03d:20h:17m:29sLogical slot/port = 10/1 Number of ports = 0GC = 0x00000000 HotStandBy port = nullPort state = Port-channel Ag-Not-InusePort-channel2:Age of the Port-channel = 03d:20h:17m:29sLogical slot/port = 10/2 Number of ports = 0GC = 0x00000000 HotStandBy port = nullPort state = Port-channel Ag-Not-InusePort-channel3:Age of the Port-channel = 03d:20h:17m:29sLogical slot/port = 10/3 Number of ports = 0GC = 0x00000000 HotStandBy port = nullPort state = Port-channel Ag-Not-InuseThis is an example of output from the show interfaces gigabitethernet1/0/6 pruning command when pruning is enabled in the VTP domain:
Switch# show interfaces gigibitethernet1/0/6 pruningPort Vlans pruned for lack of request by neighborGi1/0/6 3,4Port Vlans traffic requested of neighborGi1/0/6 1-3This is an example of output from the show interfaces stats command for a specified interface.
Switch# show interfaces vlan 1 statsSwitching path Pkts In Chars In Pkts Out Chars OutProcessor 1165354 136205310 570800 91731594Route cache 0 0 0 0Total 1165354 136205310 570800 91731594This is an example of partial output from the show interfaces status command. It displays the status of all interfaces.
Switch# show interfaces statusPort Name Status Vlan Duplex Speed TypeFa1/0/1 notconnect 1 auto auto 10/100BaseTXFa1/0/2 notconnect 1 auto auto 10/100BaseTXFa1/0/3 notconnect 1 auto auto 10/100BaseTXFa1/0/4 Test notconnect 1 auto auto 10/100BaseTXFa1/0/5 notconnect 1 auto auto 10/100BaseTX<output truncated>This is an example of output from the show interfaces status err-disabled command. It displays the status of interfaces in the error-disabled state.
Switch# show interfaces status err-disabledPort Name Status ReasonGi2/0/26 err-disabled gbic-invalidThis is an example of output from the show interfaces switchport command for a single interface. Table 2-16 describes the fields in the display.
Note
Switch# show interfaces gigabitethernet 1/0/3 switchportName: Gi1/0/3Switchport: EnabledAdministrative Mode: dynamic desirableOperational Mode: downAdministrative Trunking Encapsulation: negotiateNegotiation of Trunking: OnAccess Mode VLAN: 1 (default)Trunking Native Mode VLAN: 1 (default)Administrative private-vlan host-association: noneAdministrative private-vlan mapping: noneOperational private-vlan: noneTrunking VLANs Enabled: ALLPruning VLANs Enabled: 2-1001Protected: falseUnknown unicast blocked: disabledUnknown multicast blocked: disabledVoice VLAN: none (Inactive)Appliance trust: none
This is an example of output from the show interfaces interface trunk command. It displays trunking information for the interface.
Switch# show interfaces fastethernet 1/0/47 trunkPort Mode Encapsulation Status Native vlanFa1/0/47 desirable n-isl trunking 1Port Vlans allowed on trunkFa1/0/47 1-4094Port Vlans allowed and active in management domainFa1/0/47 1-4,20,34-36,38-55,57-58,66-67,100,139,200-201,1000Port Vlans in spanning tree forwarding state and not prunedFa1/0/47 1-4,20,34-36,38-55,57-58,66-67,100,139,200-201,1000Related Commands
Configures a port as a static-access or dynamic-access port.
Blocks unknown unicast or multicast traffic on an interface.
Configures the VLAN membership mode of a port.
Isolates unicast, multicast, and broadcast traffic at Layer 2 from other protected ports on the same switch.
switchport trunk pruning
Configures the VLAN pruning-eligible list for ports in trunking mode.
show interfaces counters
Use the show interfaces counters privileged EXEC command to display various counters for the switch or for a specific interface.
show interfaces [interface-id | vlan vlan-id] counters [broadcast | errors | module switch- number | multicast | trunk | unicast] [ | {begin | exclude | include} expression]
Syntax Description
s
Command Modes
Privileged EXEC
Command History
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 are not displayed, but the lines that contain Output are displayed.
Examples
This is an example of partial output from the show interfaces counters command. It displays all counters for the switch.
Switch# show interfaces countersPort InOctets InUcastPkts InMcastPkts InBcastPktsFa6/0/1 0 0 0 0Fa6/0/2 0 0 0 0Fa6/0/3 0 0 0 0Fa6/0/4 0 0 0 0Fa6/0/5 0 0 0 0<output truncated>Fa6/0/24 0 0 0 0Gi6/0/1 0 0 0 0Gi6/0/2 0 0 0 0Fa8/0/1 0 0 0 0Fa8/0/2 0 0 0 0<output truncated>This is an example of partial output from the show interfaces counters broadcast command. It displays dropped broadcast traffic for all interfaces.
Switch# show interfaces counters broadcastPort BcastSuppDiscardsFa1/0/1 0Fa1/0/2 0Fa1/0/3 0Fa1/0/4 0Fa1/0/5 0Fa1/0/6 0<output truncated>This is an example of partial output from the show interfaces counters module command for stack member 2. It displays all counters for the specified switch in the stack.
Switch# show interfaces counters module 2Sauron#show interface countersPort InOctets InUcastPkts InMcastPkts InBcastPktsFa2/0/1 520 2 0 0Fa2/0/2 520 2 0 0Fa2/0/3 520 2 0 0Fa2/0/4 520 2 0 0Fa2/0/5 520 2 0 0Fa2/0/6 520 2 0 0Fa2/0/7 520 2 0 0Fa2/0/8 520 2 0 0<output truncated>This is an example of output from the show interfaces counters trunk command. It displays trunk counters for all interfaces.
Switch# show interfaces counters trunkPort TrunkFramesTx TrunkFramesRx WrongEncapFa1/0/1 0 0 0Fa1/0/2 0 0 0Fa1/0/3 80678 4155 0Fa1/0/4 82320 126 0Fa1/0/5 0 0 0<output truncated>Related Commands
show ip igmp profile
Use the show ip igmp profile privileged EXEC command to view all configured Internet Group Management Protocol (IGMP) profiles or a specified IGMP profile.
show ip igmp profile [profile number] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
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
These are examples of output from the show ip igmp profile privileged EXEC command, with and without specifying a profile number. If no profile number is entered, the display includes all profiles configured on the switch.
Switch# show ip igmp profile 40IGMP Profile 40permitrange 233.1.1.1 233.255.255.255Switch# show ip igmp profileIGMP Profile 3range 230.9.9.0 230.9.9.0IGMP Profile 4permitrange 229.9.9.0 229.255.255.255Related Commands
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 [mrouter] [multicast] [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
mrouter
(Optional) See the show ip igmp snooping mrouter command.
multicast
(Optional) See the show ip igmp snooping multicast command.
vlan vlan-id
(Optional) Specify a VLAN; the range is 1 to 4094.
| begin
(Optional) Display begins with the line that matches the expression.
| exclude
(Optional) Display excludes lines that match the expression.
| include
(Optional) Display includes lines that match the specified expression.
expression
Expression in the output to use as a reference point.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Use this command to display snooping configuration for the switch or for a specific VLAN.
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 ip igmp snooping command. It shows how to display snooping characteristics for all VLANs on the switch.
Switch# show ip igmp snoopingvlan 1----------IGMP snooping is globally enabledIGMP snooping is enabled on this VlanIGMP snooping immediate-leave is disabled on this VlanIGMP snooping mrouter learn mode is pim-dvmrp on this VlanIGMP snooping is running in IGMP_ONLY mode on this Vlanvlan 2----------IGMP snooping is globally enabledIGMP snooping is enabled on this VlanIGMP snooping immediate-leave is disabled on this VlanIGMP snooping mrouter learn mode is pim-dvmrp on this VlanIGMP snooping is running in IGMP_ONLY mode on this Vlan<output truncated>This is an example of output from the show ip igmp snooping vlan 1 command. It shows how to display snooping characteristics for a specific VLAN.
Switch# show ip igmp snooping vlan 1IGMP snooping is globally enabledIGMP snooping is enabled on this VlanIGMP snooping immediate-leave is disabled on this VlanIGMP snooping mrouter learn mode is pim-dvmrp on this VlanIGMP snooping is running in IGMP_ONLY mode on this VlanRelated Commands
show ip igmp snooping mrouter
Use the show ip igmp snooping mrouter privileged EXEC command to display the Internet Group Management Protocol (IGMP) snooping dynamically learned and manually configured multicast router ports for the switch or for the specified multicast VLAN.
show ip igmp snooping mrouter [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Use this command to display multicast router ports on the switch or for a specific VLAN.
When multicast VLAN registration (MVR) is enabled, the show ip igmp snooping mrouter command displays MVR multicast router information and IGMP snooping information.
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 ip igmp snooping mrouter command. It shows how to display multicast router ports on the switch.
Switch# show ip igmp snooping mrouterVlan ports---- -----1 Gi2/0/1(dynamic)Related Commands
show ip igmp snooping multicast
Use the show ip igmp snooping multicast privileged EXEC command to display the Internet Group Management Protocol (IGMP) snooping multicast table for the switch or multicast information for the selected parameter. Use with the vlan keyword to display the multicast table for a specified multicast VLAN or information about the selected parameter for the VLAN.
show ip igmp snooping multicast [vlan vlan-id] [count | dynamic [count | group ip_address] | group ip_address | user [count | group ip_address]] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Use this command to display multicast information and the multicast table for specified parameters.
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 ip igmp snooping multicast command without any keywords. It displays the multicast table for the switch.
Switch# show ip igmp snooping multicastVlan Group Address Type Ports---- ------------- ---- -----1 224.1.2.30 IGMP Fa3/0/31, Fa4/0/11 224.1.2.1 IGMP Fa3/0/31, Fa4/0/11 224.4.4.4 USER Fa1/0/4, Fa4/0/1This is an example of output from the show ip igmp snooping multicast count command. It displays the total number of multicast groups on the switch.
Switch# show ip igmp snooping multicast countTotal number of multicast groups: 3This is an example of output from the show ip igmp snooping multicast dynamic command. It shows only the entries learned through IGMP snooping.
Switch# show ip igmp snooping multicast dynamicVlan Group Address Type Ports---- ------------- ---- -----1 224.1.2.30 IGMP Fa4/0/1, Fa4/0/371 224.1.2.1 IGMP Fa4/0/1, Fa4/0/37This is an example of output from the show ip igmp snooping multicast group command. It shows the entries for the group with the specified IP address.
Switch# show ip igmp snooping multicast group 224.1.2.30Vlan Group Address Type Ports---- ------------- ---- -----1 224.1.2.30 IGMP Fa4/0/1, Fa4/0/37This is an example of output from the show ip igmp snooping multicast vlan command. It displays all entries belonging to the specified VLAN.
Switch# show ip igmp snooping multicast vlan 1Vlan Group Address Type Ports---- ------------- ---- -----1 224.1.2.30 IGMP Fa4/0/1, Fa4/0/371 224.1.2.1 IGMP Fa4/0/1, Fa4/0/37Related Commands
show mac-address-table
Use the show mac-address-table user EXEC command to display a specific MAC address table static and dynamic entry or the MAC address table static and dynamic entries on a specific interface or VLAN.
show mac-address-table [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mac-address-table command:
Switch> show mac-address-tableMac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----All 0000.0000.0001 STATIC CPUAll 0000.0000.0002 STATIC CPUAll 0000.0000.0003 STATIC CPUAll 0000.0000.0009 STATIC CPUAll 0000.0000.0012 STATIC CPUAll 0180.c200.000b STATIC CPUAll 0180.c200.000c STATIC CPUAll 0180.c200.000d STATIC CPUAll 0180.c200.000e STATIC CPUAll 0180.c200.000f STATIC CPUAll 0180.c200.0010 STATIC CPU1 0030.9441.6327 DYNAMIC Gi6/0/23Total Mac Addresses for this criterion: 12Related Commands
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.
Displays the aging time in all VLANs or the specified VLAN.
Displays the number of addresses present in all VLANs or the specified VLAN.
Displays dynamic MAC address table entries only.
Displays the MAC address table information for the specified interface.
Displays the Layer 2 multicast entries for all VLANs or the specified VLAN.
Displays the MAC address notification settings for all interfaces or the specified interface.
Displays static MAC address table entries only.
Displays the MAC address table information for the specified VLAN.
show mac-address-table address
Use the show mac-address-table address user EXEC command to display MAC address table information for the specified MAC address.
show mac-address-table address mac-address [interface interface-id] [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mac-address-table address command:
Switch# show mac-address-table address 0002.4b28.c482Mac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----All 0002.4b28.c482 STATIC CPUTotal Mac Addresses for this criterion: 1Related Commands
show mac-address-table aging-time
Use the show mac-address-table aging-time user EXEC command to display the aging time of a specific address table instance, all address table instances on a specified VLAN or, if a specific VLAN is not specified, on all VLANs.
show mac-address-table aging-time [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
If no VLAN number is specified, then the aging time for all VLANs 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
This is an example of output from the show mac-address-table aging-time command:
Switch> show mac-address-table aging-timeVlan Aging Time---- ----------1 300This is an example of output from the show mac-address-table aging-time vlan 10 command:
Switch> show mac-address-table aging-time vlan 10Vlan Aging Time---- ----------10 300Related Commands
show mac-address-table count
Use the show mac-address-table count user EXEC command to display the number of addresses present in all VLANs or the specified VLAN.
show mac-address-table count [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
If no VLAN number is specified, the address count for all VLANs 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
This is an example of output from the show mac-address-table count command:
Switch# show mac-address-table countMac Entries for Vlan : 1---------------------------Dynamic Address Count : 2Static Address Count : 0Total Mac Addresses : 2Related Commands
show mac-address-table dynamic
Use the show mac-address-table dynamic user EXEC command to display only dynamic MAC address table entries.
show mac-address-table dynamic [address mac-address] [interface interface-id] [vlan vlan-id]
[ | {begin | exclude | include} expression]Syntax Description
Command Modes
User EXEC; address keyword available only in privileged EXEC mode.
Command History
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 mac-address-table dynamic command:
Switch> show mac-address-table dynamicMac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----1 0030.b635.7862 DYNAMIC Gi6/0/21 00b0.6496.2741 DYNAMIC Gi6/0/2Total Mac Addresses for this criterion: 2Related Commands
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.
Displays MAC address table information for the specified MAC address.
Displays the aging time in all VLANs or the specified VLAN.
Displays the number of addresses present in all VLANs or the specified VLAN.
Displays the MAC address table information for the specified interface.
Displays the Layer 2 multicast entries for all VLANs or the specified VLAN.
Displays static MAC address table entries only.
Displays the MAC address table information for the specified VLAN.
show mac-address-table interface
Use the show mac-address-table interface user command to display the MAC address table information for the specified interface in the specified VLAN.
show mac-address-table interface interface-id [vlan vlan-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mac-address-table interface command:
Switch> show mac-address-table interface gigabitethernet6/0/2Mac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----1 0030.b635.7862 DYNAMIC Gi6/0/21 00b0.6496.2741 DYNAMIC Gi6/0/2Total Mac Addresses for this criterion: 2Related Commands
show mac-address-table multicast
Use the show mac-address-table multicast user EXEC command to display the Layer 2 multicast entries for all VLANs. Use the command in privileged EXEC mode to display specific multicast entries.
show mac-address-table multicast [vlan-id] [count | user [count]] [ | {begin | exclude | include} expression]
Syntax Description
Note
Command Modes
User EXEC
Command History
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 mac-address-table multicast command. It shows how to display all multicast entries for the switch.
Switch> show mac-address-table multicastVlan Mac Address Type Ports---- ----------- ---- -----1 0100.5e00.0128 IGMP Gi1/0/1This is an example of output from the show mac-address-table multicast count command. It shows how to display a total count of MAC address entries for the switch.
Switch> show mac-address-table multicast countMulticast MAC Entries for all vlans: 10This is an example of output from the show mac-address-table multicast vlan 1 count command. It shows how to display a total count of MAC address entries for a VLAN.
Switch> show mac-address-table multicast vlan 1 countMulticast MAC Entries for vlan 1: 4Related Commands
show mac-address-table notification
Use the show mac-address-table notification user EXEC command to display the MAC address notification settings for all interfaces or the specified interface.
show mac-address-table notification [interface [interface-id] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
Usage Guidelines
Use the show mac-address-table notification command without any keywords to display whether the feature is enabled or disabled, the MAC notification interval, the maximum number of entries allowed in the history table, and the history table contents.
Use the interface keyword to display the flags for all interfaces. If the interface-id is included, only the flags for that interface are 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
This is an example of output from the show mac-address-table notification command:
Switch> show mac-address-table notificationMAC Notification Feature is Enabled on the switchInterval between Notification Traps : 60 secsNumber of MAC Addresses Added : 4Number of MAC Addresses Removed : 4Number of Notifications sent to NMS : 3Maximum Number of entries configured in History Table : 100Current History Table Length : 3MAC Notification Traps are EnabledHistory Table contents----------------------History Index 0, Entry Timestamp 1032254, Despatch Timestamp 1032254MAC Changed Message :Operation: Added Vlan: 2 MAC Addr: 0000.0000.0001 Module: 0 Port: 1History Index 1, Entry Timestamp 1038254, Despatch Timestamp 1038254MAC Changed Message :Operation: Added Vlan: 2 MAC Addr: 0000.0000.0000 Module: 0 Port: 1Operation: Added Vlan: 2 MAC Addr: 0000.0000.0002 Module: 0 Port: 1Operation: Added Vlan: 2 MAC Addr: 0000.0000.0003 Module: 0 Port: 1History Index 2, Entry Timestamp 1074254, Despatch Timestamp 1074254MAC Changed Message :Operation: Deleted Vlan: 2 MAC Addr: 0000.0000.0000 Module: 0 Port: 1Operation: Deleted Vlan: 2 MAC Addr: 0000.0000.0001 Module: 0 Port: 1Operation: Deleted Vlan: 2 MAC Addr: 0000.0000.0002 Module: 0 Port: 1Operation: Deleted Vlan: 2 MAC Addr: 0000.0000.0003 Module: 0 Port: 1Related Commands
clear mac-address-table notification
Clears the MAC address notification global counters.
Displays MAC address table information for the specified MAC address.
Displays the aging time in all VLANs or the specified VLAN.
Displays the number of addresses present in all VLANs or the specified VLAN.
Displays dynamic MAC address table entries only.
Displays the MAC address table information for the specified interface.
Displays the Layer 2 multicast entries for all VLANs or the specified VLAN.
Displays static MAC address table entries only.
Displays the MAC address table information for the specified VLAN.
show mac-address-table static
Use the show mac-address-table static user EXEC command to display static MAC address table entries only.
show mac-address-table static [address mac-address] [interface interface-id] [vlan vlan-id]
[ | {begin | exclude | include} expression]Syntax Description
Command Modes
User EXEC; address keyword available only in privileged EXEC mode.
Command History
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 mac-address-table static command:
Switch> show mac-address-table static
Mac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----All 0100.0ccc.cccc STATIC CPUAll 0180.c200.0000 STATIC CPUAll 0100.0ccc.cccd STATIC CPUAll 0180.c200.0001 STATIC CPUAll 0180.c200.0002 STATIC CPUAll 0180.c200.0003 STATIC CPUAll 0180.c200.0004 STATIC CPUAll 0180.c200.0005 STATIC CPUAll 0180.c200.0006 STATIC CPUAll 0180.c200.0007 STATIC CPUTotal Mac Addresses for this criterion: 10Related Commands
show mac-address-table vlan
Use the show mac-address-table vlan user EXEC command to display the MAC address table information for the specified VLAN.
show mac-address-table vlan vlan-id [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mac-address-table vlan 1 command:
Switch> show mac-address-table vlan 1Mac Address Table------------------------------------------Vlan Mac Address Type Ports---- ----------- ---- -----1 0100.0ccc.cccc STATIC CPU1 0180.c200.0000 STATIC CPU1 0100.0ccc.cccd STATIC CPU1 0180.c200.0001 STATIC CPU1 0180.c200.0002 STATIC CPU1 0180.c200.0003 STATIC CPU1 0180.c200.0004 STATIC CPU1 0180.c200.0005 STATIC CPU1 0180.c200.0006 STATIC CPU1 0180.c200.0007 STATIC CPUTotal Mac Addresses for this criterion: 10Related Commands
show mls qos
Use the show mls qos user EXEC command to display global quality of service (QoS) configuration information.
show mls qos [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mls qos command:
Switch> show mls qosQos is enabledRelated Commands
show mls qos aggregate-policer
Use the show mls qos aggregate-policer user EXEC command to display the quality of service (QoS) aggregate policer configuration. A policer defines a maximum permissible rate of transmission, a maximum burst size for transmissions, and an action to take if either maximum is exceeded.
show mls qos aggregate-policer [aggregate-policer-name] [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mls qos aggregate-policer command:
Switch> show mls qos aggregate-policer policer1aggregate-policer policer1 88000 2000000 exceed-action dropNot used by any policy mapRelated Commands
Defines policer parameters that can be shared by multiple classes within a policy map.
show mls qos input-queue
Use the show mls qos input-queue user EXEC command to display quality of service (QoS) settings for the ingress queues.
show mls qos input-queue [ | {begin | exclude | include} expression]
Syntax Description
Command Modes
User EXEC
Command History
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 mls qos input-queue command:
Switch> show mls qos input-queueQueue : 1 2----------------------------------------------buffers : 90 10bandwidth : 4 4priority : 0 10threshold1: 100 100threshold2: 100 100Related Commands
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] [buffers | queueing | statistics]
[ | {begin | exclude | include} expression]Syntax Description
Note
Command Modes
User EXEC
Command History
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 mls qos interface command:
Switch# show mls qos interface fastethernet1/0/7FastEthernet1/0/7Attached policy-map for Ingress: videowizard_policytrust state: not trustedCOS override: disdefault COS: 0DSCP Mutation Map: Default DSCP Mutation MapThis is an example of output from the show mls qos interface fastethernet1/0/7 buffers command:
Switch> show mls qos interface fastethernet1/0/7 buffersFastEthernet1/0/7The port is mapped to qset : 1The allocations between the queues are : 25 25 25 25This is an example of output from the show mls qos interface fastethernet1/0/7 queueing command:
Switch> show mls qos interface fastethernet1/0/7 queueingFastEthernet1/0/7Shaped queue weights (absolute) : 25 0 0 0Shared queue weights : 25 25 25 25The port bandwidth is limited to: 100%The port is mapped to qset : 1This is an example of output from the show mls qos interface fastethernet1/0/7 statistics command. Table 2-17 describes the fields in this display.
Switch> show mls qos interface fastethernet1/0/7 statisticsFastEthernet1/0/7dscp: incoming-------------------------------0 - 4 : 4213 0 0 0 05 - 9 : 0 0 0 0 010 - 14 : 0 0 0 0 015 - 19 : 0 0 0 0 020 - 24 : 0 0 0 0 025 - 29 : 0 0 0 0 030 - 34 : 0 0 0 0 035 - 39 : 0 0 0 0 040 - 44 : 0 0 0 0 045 - 49 : 0 0 0 6 050 - 54 : 0 0 0 0 055 - 59 : 0 0 0 0 060 - 64 : 0 0 0 0dscp: outgoing-------------------------------0 - 4 : 363949 0 0 0 05 - 9 : 0 0 0 0 010 - 14 : 0 0 0 0 015 - 19 : 0 0 0 0 020 - 24 : 0 0 0 0 025 - 29 : 0 0 0 0 030 - 34 : 0 0 0 0 035 - 39 : 0 0 0 0 040 - 44 : 0 0 0 0 045 - 49 : 0 0 0 0 050 - 54 : 0 0 0 0 055 - 59 : 0 0 0 0 060 - 64 : 0 0 0 0cos: incoming-------------------------------0 - 4 : 132067 0 0 0 05 - 9 : 0 0 0cos: outgoing-------------------------------0 - 4 : 739155 0 0 0 05 - 9 : 90 0 0Policer: Inprofile: 0 OutofProfile: 0
Related Commands
show mls qos maps
Use the show mls qos maps user EXEC command to display quality of service (QoS) mapping information. During classification, QoS uses the mapping tables to represent the priority of the traffic and to derive a corresponding class of service (CoS) or Differentiated Services Code Point (DSCP) value from the received CoS, DSCP, or IP precedence value.
show mls qos maps [cos-dscp | cos-input-q | cos-output-q | dscp-cos | dscp-input-q | dscp-mutation dscp-mutation-name | dscp-output-q | ip-prec-dscp | policed-dscp] [ | {begin | exclude |
