Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(20)EW
show access-group mode interface through show vtp
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Table Of Contents

show access-group mode interface

show arp access-list

show auto install status

show auto qos

show bootflash:

show bootvar

show class-map

show diagnostic result module

show diagnostic result module test 2

show diagnostic result module test 3

show dot1x

show environment

show errdisable detect

show errdisable recovery

show etherchannel

show flowcontrol

show idprom

show interfaces

show interfaces capabilities

show interfaces counters

show interfaces description

show interfaces link

show interfaces mtu

show interfaces private-vlan mapping

show interfaces status

show interfaces switchport

show interfaces transceiver

show interfaces trunk

show ip arp inspection

show ip arp inspection log

show ip cef vlan

show ip dhcp snooping

show ip dhcp snooping binding

show ip dhcp snooping database

show ip igmp interface

show ip igmp profile

show ip igmp snooping

show ip igmp snooping membership

show ip igmp snooping mrouter

show ip igmp snooping vlan

show ip mfib

show ip mfib fastdrop

show ip mroute

show ip source binding

show ip verify source

show ipc

show l2protocol-tunnel

show lacp

show mac access-group interface

show mac-address-table address

show mac-address-table aging-time

show mac-address-table count

show mac-address-table dynamic

show mac-address-table interface

show mac-address-table multicast

show mac-address-table protocol

show mac-address-table static

show mac-address-table vlan

show module

show monitor

show pagp

show policy-map

show policy-map interface

show port-security

show power

show qos

show qos aggregate policer

show qos dbl

show qos interface

show qos maps

show redundancy

show running-config

show slavebootflash:

show slaveslot0:

show slot0:

show spanning-tree

show spanning-tree mst

show storm-control

show system mtu

show tech-support

show udld

show vlan

show vlan access-map

show vlan counters

show vlan dot1q tag native

show vlan internal usage

show vlan mtu

show vlan private-vlan

show vlan remote-span

show vmps

show vtp


22

show access-group mode interface

To display the ACL configuration on a Layer 2 interface, use the show mac access-group interface command.

show access-group mode interface [interface interface-number]

Syntax Description

interface

(Optional) Interface type; valid values are ethernet, FastEthernet, GigabitEthernet, and port-channel.

interface-number

(Optional) Interface number.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

Valid values for the port number depend on the chassis used.

Examples

This example shows how to display the ACL configuration on interface fast 6/1:

Switch# show access-group mode interface fast 6/1
Interface FastEthernet6/1:
   Access group mode is: merge

Related Commands

access-group mode

show arp access-list

To display detailed information on an ARP access list, use the show arp command.

show arp access-list

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the ARP ACL information for a switch:

Switch# show arp access-list
ARP access list rose
    permit ip 10.101.1.1 0.0.0.255 mac any
    permit ip 20.3.1.0 0.0.0.255 mac any

Related Commands

access-group mode
arp access-list
ip arp inspection filter vlan

show auto install status

To display the status of an automatic installation, use the show auto install status command.

show auto install status

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(20)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the IP address of the TFTP server and to display whether or not the switch is currently acquiring the configuration file on the TFTP server:

Switch# show auto install status

Status              : Downloading config file
DHCP Server         : 20.0.0.1
TFTP Server         : 30.0.0.3
Config File Fetched : Undetermined

The first IP address in the display indicates the server that is used for the automatic installation. The second IP address indicates the TFTP server that provided the configuration file.

show auto qos

To display the automatic quality of service (auto-QoS) configuration that is applied, use the show auto qos user EXEC command.

show auto qos [interface [interface-id]] [{begin | exclude | include} expression]

Syntax Description

interface interface-id

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

begin

(Optional) Begins with the line that matches the expression.

exclude

(Optional) Excludes lines that match the expression.

include

(Optional) Includes lines that match the specified expression.

expression

(Optional) Expression in the output to use as a reference point.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The show auto qos interface interface-id command displays the auto-QoS configuration; it does not display any user changes to the configuration that might be in effect.

To display information about the QoS configuration that might be affected by auto-QoS, use one of these commands:

show qos

show qos map

show qos interface interface-id

show running-config

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

Examples

This example shows output from the show auto qos command when auto-QoS is enabled:

Switch# show auto qos 
00:00:55:qos
00:00:56:qos map cos 3 to dscp 26
00:00:57:qos map cos 5 to dscp 46
00:00:58:qos map dscp 16 to tx-queue 1
00:00:58:qos map dscp 32 to tx-queue 1
00:00:58:qos dbl
00:00:59:policy-map autoqos-voip-policy
00:00:59:  class class-default
00:00:59:   dbl
00:00:59:interface GigabitEthernet1/1
00:00:59: qos trust device cisco-phone
00:00:59: qos trust cos
00:00:59: tx-queue 3
00:00:59:  priority high
00:00:59:  shape percent 70
00:00:59:  service-policy output autoqos-voip-policyend

This example shows output from the show auto qos interface command when the auto qos voip cisco-phone interface configuration command is entered:

Switch# show auto qos interface
Initial configuration applied by AutoQoS:
!
interface GigabitEthernet1/1
qos trust device cisco-phone
qos trust cos
tx-queue 3
priority high
shape percent 70
service-policy output autoqos-voip-policy
!
interface GigabitEthernet1/2
qos trust device cisco-phone
qos trust cos
tx-queue 3
priority high
shape percent 70
service-policy output autoqos-voip-policy

This example shows output from the show auto qos interface gigabitethernet1/1 command when the auto qos voip cisco-phone interface configuration command is entered:

Switch# show auto qos interface gigabitethernet1/1
Initial configuration applied by AutoQoS:
!
interface GigabitEthernet1/1
qos trust device cisco-phone
qos trust cos
tx-queue 3
priority high
shape percent 70
service-policy output autoqos-voip-policy

This example shows output from the show auto qos command when auto-QoS is disabled:

Switch# show auto qos
AutoQoS is disabled

Related Commands

auto qos voip

show bootflash:

To display information about the bootflash: file system, use the show bootflash: command.

show bootflash: [all | chips | filesys]

Syntax Description

all

(Optional) Displays all possible Flash information.

chips

(Optional) Displays Flash chip information.

filesys

(Optional) Displays file system information.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display file system status information:

Switch> show bootflash: filesys

-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: bootflash
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 40000
  Programming Algorithm = 39        Erased State     = FFFFFFFF
  File System Offset    = 40000     Length = F40000
  MONLIB Offset         = 100       Length = C628
  Bad Sector Map Offset = 3FFF8     Length = 8
  Squeeze Log Offset    = F80000    Length = 40000
  Squeeze Buffer Offset = FC0000    Length = 40000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 917CE8  Bytes Available = 628318
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 2       Bytes = 917BE8
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 0
Switch>    

This example shows how to display system image information:

Switch> show bootflash:
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    8C5A393A  237E3C   14  2063804 Aug 23 1999 16:18:45 c4-boot-mz
2   .. image    D86EE0AD  957CE8    9  7470636 Sep 20 1999 13:48:49 rp.halley  
Switch> 

This example shows how to display all bootflash information:

Switch> show bootflash: all
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    8C5A393A  237E3C   14  2063804 Aug 23 1999 16:18:45 c4-boot-
mz
2   .. image    D86EE0AD  957CE8    9  7470636 Sep 20 1999 13:48:49 rp.halley

6456088 bytes available (9534696 bytes used)

-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: bootflash
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 40000
  Programming Algorithm = 39        Erased State     = FFFFFFFF
  File System Offset    = 40000     Length = F40000
  MONLIB Offset         = 100       Length = C628
  Bad Sector Map Offset = 3FFF8     Length = 8
  Squeeze Log Offset    = F80000    Length = 40000
  Squeeze Buffer Offset = FC0000    Length = 40000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 917CE8  Bytes Available = 628318
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 2       Bytes = 917BE8
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 0
Switch>       

show bootvar

To display BOOT environment variable information, use the show bootvar command.

show bootvar

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display BOOT environment variable information:

Switch# show bootvar
BOOT variable = sup:1;
CONFIG_FILE variable does not exist
BOOTLDR variable does not exist
Configuration register is 0x0
Switch#          

show class-map

To display class map information, use the show class-map command.

show class-map class_name

Syntax Description

class_name

Name of the class map.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display class map information for all class maps:

Switch# show class-map 
 Class Map match-any class-default (id 0)
   Match any
 Class Map match-any class-simple (id 2)
   Match any
 Class Map match-all ipp5 (id 1)
   Match ip precedence 5
 Class Map match-all agg-2 (id 3)
Switch# 

This example shows how to display class map information for a specific class map:

Switch# show class-map ipp5
 Class Map match-all ipp5 (id 1)
   Match ip precedence 5
Switch#   

Related Commands

class-map
show policy-map
show policy-map interface

show diagnostic result module

To display module-based diagnostic test results, use the show diagnostic result module command.

show diagnostic result module [slot-num | all] [test [test-id | test-id-range | all]] [detail]

Syntax Description

slot-num

(Optional) Specifies the slot on which diagnostics are displayed.

all

(Optional) Displays diagnostics for all slots.

test

(Optional) Displays selected tests on the specified module.

test-id

(Optional) Specifies a single test ID.

test-id-range

(Optional) Specifies a range of test IDs.

all

(Optional) Displays diagnostics for all tests.

detail

(Optional) Displays complete test results.


Defaults

A summary of the test results for all modules in the chassis is displayed.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(18)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the summary results for all modules in the chassis:

Switch# show diagnostic result module

Current bootup diagnostic level: minimal

module 1: 

  Overall diagnostic result: PASS
  Diagnostic level at card bootup: bypass

  Test results: (. = Pass, F = Fail, U = Untested)

    1) supervisor-bootup -----------------------> U
    2) packet-memory-bootup --------------------> U
    3) packet-memory-ongoing -------------------> U


module 4: 

  Overall diagnostic result: PASS
  Diagnostic level at card bootup: minimal

  Test results: (. = Pass, F = Fail, U = Untested)

    1) linecard-online-diag --------------------> .


module 5: 

  Overall diagnostic result: PASS
  Diagnostic level at card bootup: minimal

  Test results: (. = Pass, F = Fail, U = Untested)

    1) linecard-online-diag --------------------> .


module 6: 

  Overall diagnostic result: PASS
  Diagnostic level at card bootup: minimal

  Test results: (. = Pass, F = Fail, U = Untested)

    1) linecard-online-diag --------------------> .

This example shows how to display online diagnostics for module 1:

Switch# show diagnostic result module 1 detail

Current bootup diagnostic level: minimal

module 1:

 Overall diagnostic result: PASS
 Diagnostic level at card bootup: minimal

 Test results: (. = Pass, F = Fail, U = Untested)

 
___________________________________________________________________________

   1) supervisor-bootup -----------------------> .

         Error code --------------------------> 0 (DIAG_SUCCESS)
         Total run count ---------------------> 0
         Last test execution time ------------> n/a
         First test failure time -------------> n/a
         Last test failure time --------------> n/a
         Last test pass time -----------------> n/a
         Total failure count -----------------> 0
         Consecutive failure count -----------> 0

Power-On-Self-Test Results for ACTIVE Supervisor


Power-on-self-test for Module 1:  WS-X4014
Port/Test Status: (. = Pass, F = Fail)
Reset Reason: PowerUp Software/User


Port Traffic: L2 Serdes Loopback ...
0: .  1: .  2: .  3: .  4: .  5: .  6: .  7: .  8: .  9: . 10: . 11: .
12: . 13: . 14: . 15: . 16: . 17: . 18: . 19: . 20: . 21: . 22: . 23: .
24: . 25: . 26: . 27: . 28: . 29: . 30: . 31: .


Port Traffic: L2 Asic Loopback ...
0: .  1: .  2: .  3: .  4: .  5: .  6: .  7: .  8: .  9: . 10: . 11: .
12: . 13: . 14: . 15: . 16: . 17: . 18: . 19: . 20: . 21: . 22: . 23: .
24: . 25: . 26: . 27: . 28: . 29: . 30: . 31: .


Port Traffic: L3 Asic Loopback ...
0: .  1: .  2: .  3: .  4: .  5: .  6: .  7: .  8: .  9: . 10: . 11: .
12: . 13: . 14: . 15: . 16: . 17: . 18: . 19: . 20: . 21: . 22: . 23: .
24: . 25: . 26: . 27: . 28: . 29: . 30: . 31: . au: .


Switch Subsystem Memory ...
1: .  2: .  3: .  4: .  5: .  6: .  7: .  8: .  9: . 10: . 11: . 12: .
13: . 14: . 15: . 16: . 17: . 18: . 19: . 20: . 21: . 22: . 23: . 24: .
25: . 26: . 27: . 28: . 29: . 30: . 31: . 32: . 33: . 34: . 35: . 36: .
37: . 38: . 39: . 40: . 41: . 42: . 43: . 44: . 45: . 46: . 47: . 48: .
49: . 50: . 51: . 52: . 53: . 54: .


Module 1 Passed


 
___________________________________________________________________________

   2) packet-memory-bootup --------------------> .

         Error code --------------------------> 0 (DIAG_SUCCESS)
         Total run count ---------------------> 0
         Last test execution time ------------> n/a
         First test failure time -------------> n/a
         Last test failure time --------------> n/a
         Last test pass time -----------------> n/a
         Total failure count -----------------> 0
         Consecutive failure count -----------> 0
packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979


Number of errors found: 0
Cells with hard errors (failed two or more tests): 0
Cells with soft errors (failed one test, includes hard): 0
Suspect bad cells (uses a block that tested bad): 0
total buffers: 65536
bad buffers: 0 (0.0%)
good buffers: 65536 (100.0%)
Bootup test results:1
No  errors.

 
___________________________________________________________________________

   3) packet-memory-ongoing -------------------> U

         Error code --------------------------> 0 (DIAG_SUCCESS)
         Total run count ---------------------> 0
         Last test execution time ------------> n/a
         First test failure time -------------> n/a
         Last test failure time --------------> n/a
         Last test pass time -----------------> n/a
         Total failure count -----------------> 0
         Consecutive failure count -----------> 0
packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979


Packet memory errors: 0 0
Current alert level: green
Per 5 seconds in the last minute:
   0 0 0 0 0 0 0 0 0 0
   0 0
Per minute in the last hour:
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
Per hour in the last day:
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0
Per day in the last 30 days:
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
Direct memory test failures per minute in the last hour:
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
   0 0 0 0 0 0 0 0 0 0
Potential false positives: 0 0
 Ignored because of rx errors: 0 0
 Ignored because of cdm fifo overrun: 0 0
 Ignored because of oir: 0 0
 Ignored because isl frames received: 0 0
 Ignored during boot: 0 0
 Ignored after writing hw stats: 0 0
 Ignored on high gigaport: 0
Ongoing diag action mode: Normal
Last 1000 Memory Test Failures:
Last 1000 Packet Memory errors:
First 1000 Packet Memory errors:

___________________________________________________________________________
Switch#

show diagnostic result module test 2

To display the results of the bootup packet memory test, use the show diagnostic result module test 2 command. The output indicates whether the test passed, failed, or was not run.

show diagnostic result module N test 2 [detail]

Syntax Description

N

Specifies the module number.

detail

(Optional) Specifies the display of detailed information for analysis.


Defaults

Non-detailed results

Command Modes

EXEC mode

Command History

Release
Modification

12.2(18)EW

This command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The detail keyword is intended for use by Cisco support personnel when analyzing failures.

Examples

This example shows how to display the results of the bootup packet memory tests:

Switch# show diagnostic result module 1 test 2

Test results: (. = Pass, F = Fail, U = Untested)

    2) packet-memory-bootup ------------> .

This example shows how to display detailed results from the bootup packet memory tests:

Switch# show diagnostic result module 2 test 2 detail

Test results: (. = Pass, F = Fail, U = Untested)


___________________________________________________________________________

    2) packet-memory-bootup ------------> .

          Error code ------------------> 0 (DIAG_SUCCESS)
          Total run count -------------> 0
          Last test execution time ----> n/a
          First test failure time -----> n/a
          Last test failure time ------> n/a
          Last test pass time ---------> n/a
          Total failure count ---------> 0
          Consecutive failure count ---> 0
packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979


Number of errors found: 0
Cells with hard errors (failed two or more tests): 0
Cells with soft errors (failed one test, includes hard): 0
Suspect bad cells (uses a block that tested bad): 0
total buffers: 65536
bad buffers: 0 (0.0%)
good buffers: 65536 (100.0%)
Bootup test results:
No errors.

Related Commands

diagnostic monitor action
show diagnostic result module test 3

show diagnostic result module test 3

To display results from the ongoing packet memory test, use the show diagnostic result module test 3 command. The output indicates whether the test passed, failed, or was not run.

show diagnostic result module N test 3 [detail]

Syntax Description

N

Specifies the module number.

detail

(Optional) Specifies the display of detailed information for analysis.


Defaults

Non-detailed results

Command Modes

EXEC mode

Command History

Release
Modification

12.2(18)EW

This command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The detail keyword is intended for use by Cisco support personnel when analyzing failures.

Examples

This example shows how to display results from the ongoing packet memory tests:

Switch# show diagnostic result module 1 test 3

Test results: (. = Pass, F = Fail, U = Untested)

    3) packet-memory-ongoing -----------> .

This example shows how to display detailed results from the ongoing packet memory tests:

Switch# show diagnostic result module 1 test 3 detail

Test results: (. = Pass, F = Fail, U = Untested)


___________________________________________________________________________

    3) packet-memory-ongoing -----------> .

          Error code ------------------> 0 (DIAG_SUCCESS)
          Total run count -------------> 0
          Last test execution time ----> n/a
          First test failure time -----> n/a
          Last test failure time ------> n/a
          Last test pass time ---------> n/a
          Total failure count ---------> 0
          Consecutive failure count ---> 0
packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979


Packet memory errors: 0 0
Current alert level: green
Per 5 seconds in the last minute: 
    0 0 0 0 0 0 0 0 0 0 
    0 0 
Per minute in the last hour: 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
Per hour in the last day: 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 
Per day in the last 30 days: 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
Direct memory test failures per minute in the last hour: 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
    0 0 0 0 0 0 0 0 0 0 
Potential false positives: 0 0
  Ignored because of rx errors: 0 0
  Ignored because of cdm fifo overrun: 0 0
  Ignored because of oir: 0 0
  Ignored because isl frames received: 0 0
  Ignored during boot: 0 0
  Ignored after writing hw stats: 0 0
  Ignored on high gigaport: 0
Ongoing diag action mode: Normal
Last 1000 Memory Test Failures: v
Last 1000 Packet Memory errors:
First 1000 Packet Memory errors:

Related Commands

diagnostic monitor action
show diagnostic result module test 2

show dot1x

To display 802.1X statistics and operational status for the entire switch or for a specified interface, use the show dot1x command.

show dot1x [interface interface-id] | [statistics [interface interface-id]] | [all]

Syntax Description

interface interface-id

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

statistics

(Optional) Displays 802.1X statistics for the switch or the specified interface.

all

(Optional) Displays per-interface 802.1X configuration information for all interfaces with a non-default 802.1X configuration.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Display enhanced to show the guest-VLAN value.


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 dot1x
Sysauthcontrol = Disabled
Dot1x Protocol Version = 1
Dot1x Oper Controlled Directions = Both
Dot1x Admin Controlled Directions = Both
Switch# 

This example shows how to display 802.1x statististics for a specific port:

Switch# show dot1x interface fastethernet3/2

AuthSM State      = AUTHENTICATED(GUEST_VLAN)
BendSM State      = IDLE
PortStatus        = AUTHORIZED
MaxReq            = 2 
MultiHosts        = Disabled 
Port Control      = Auto
QuietPeriod       = 60 Seconds 
Re-authentication = Disabled 
ReAuthPeriod      = 3600 Seconds
ServerTimeout     = 30 Seconds 
SuppTimeout       = 30 Seconds 
TxPeriod          = 30 Seconds 
Guest-Vlan        = 91 
Switch# 


Note Table 2-12 provides a partial list of the displayed fields. 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.


Table 2-12 show dot1x interface Field Description 

Field
Description

PortStatus

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.

MultiHosts

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


This is an example of output from the show dot1x statistics interface gigabitethernet1/1 command. Table 2-13 describes the fields in the display.

Switch# show dot1x statistics interface gigabitethernet1/1

PortStatistics Parameters for Dot1x 
--------------------------------------------
TxReqId = 0    TxReq = 0     TxTotal = 0 
RxStart = 0    RxLogoff = 0  RxRespId = 0  RxResp = 0
RxInvalid = 0  RxLenErr = 0  RxTotal= 0
RxVersion = 0  LastRxSrcMac 0000.0000.0000 
Switch# 

Table 2-13 show dot1x statistics Field Descriptions 

Field
Description

TxReq/TxReqId

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

TxTotal

Number of EAPOL frames of any type that have been sent.

RxStart

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

RxLogoff

Number of EAPOL-logoff frames that have been received.

RxRespId

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

RxResp

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

RxInvalid

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

RxLenError

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

RxTotal

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

RxVersion

Protocol version number carried in the most recently received EAPOL frame.

LastRxSrcMac

Source MAC address carried in the most recently received EAPOL frame.


Related Commands

dot1x guest-vlan
dot1x max-reauth-req
dot1x port-control

show environment

To display environment alarm, operational status, and the current reading for the chassis, use the show environment command.

show environment [alarm] | [status [chassis | fantray | powersupply | supervisor]] | [temperature]

Syntax Description

alarm

(Optional) Specifies alarm status of the chassis.

status

(Optional) Specifies operational status information.

chassis

(Optional) Specifies operational status of the chassis.

fantray

(Optional) Specifies status of the fan tray, and shows fan tray power consumption.

powersupply

(Optional) Specifies status of the power supply.

supervisor

(Optional) Specifies status of the supervisor engine.

temperature

(Optional) Specifies current chassis temperature readings.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for the ability to display generic environment information with the show environment command was added.


Examples

This example shows how to display information about environment alarms, operational status, and the current temperature readings for the chassis:

Switch# show environment
no alarm

Chassis Temperature                    = 32 degrees Celsius
Chassis Over Temperature Threshold     = 75 degrees Celsius
Chassis Critical Temperature Threshold = 95 degrees Celsius

Power                               Fan
Supply  Model No         Type       Status       Sensor
------  ---------------  ---------  -----------  ------
PS1     PWR-C45-1400AC   AC 1400W   good         good
PS2     none             --         --           --

Power Supply    Max     Min     Max     Min     Absolute
(Nos in Watts)  Inline  Inline  System  System  Maximum
--------------  ------  ------  ------  ------  --------
PS1                0       0    1360    1360    1400
PS2               --      --      --      --     --

Power supplies needed by system : 1

Chassis Type : WS-C4507R

Supervisor Led Color : Green

Fantray : good

Power consumed by Fantray : 50 Watts

This example shows how to display information about environment alarms:

Switch# show environment alarm
no alarm
Switch# 

This example shows how to display information about power supplies, chassis type, and fan trays:

Switch# show environment status
Power                                            Fan
Supply  Model No         Type       Status       Sensor
------  ---------------  ---------  -----------  ------
PS1     PWR-C45-1400AC   AC 1400W   good         good
PS2     none             --         --           --

Power Supply    Max     Min     Max     Min     Absolute
(Nos in Watts)  Inline  Inline  System  System  Maximum
--------------  ------  ------  ------  ------  --------
PS1                0       0    1360    1360    1400
PS2               --      --      --      --     --

Power supplies needed by system : 1

Chassis Type : WS-C4507R

Supervisor Led Color : Green

Fantray : good

Power consumed by Fantray : 50 Watts

Switch# 

This example shows how to display information about the chassis:

Switch# show environment status chassis
Chassis Type :WS-C4006
Switch# 

This example shows how to display information about the fan tray:

Switch# show environment status fantray
Fantray : good
Power consumed by Fantray : 50 Watts
Switch# 

This example shows how to display information about the power supply:

Switch# show environment status powersupply
Power                                        Fan
Supply  Model No         Type       Status   Sensor
------  ---------------  ---------  -------  ------
PS1     WS-X4008         AC 400W    good     good
PS2     WS-X4008         AC 400W    good     good
PS3     none             --         --       --
Switch# 

This example shows how to display information about the supervisor engine:

Switch# show environment status supervisor
Supervisor Led Color :Green
Switch# 

This example shows how to display information about the temperature of the chassis:

Switch# show environment temperature 
Chassis Temperature                    = 32 degrees Celsius
Chassis Over Temperature Threshold     = 75 degrees Celsius
Chassis Critical Temperature Threshold = 95 degrees Celsius
Switch# 

show errdisable detect

To display error disable detection status, use the show errdisable detect command.

show errdisable detect

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Display includes the status of storm control.


Examples

This example shows how to display error disable detection status:

Switch# show errdisable detect
ErrDisable Reason    Detection status
-----------------    ----------------
udld                 Enabled
bpduguard            Enabled
security-violatio    Enabled
channel-misconfig    Disabled
psecure-violation    Enabled
vmps                 Enabled
pagp-flap            Enabled
dtp-flap             Enabled
link-flap            Enabled
l2ptguard            Enabled
gbic-invalid         Enabled
dhcp-rate-limit      Enabled
unicast-flood        Enabled
storm-control        Enabled
ilpower              Enabled
arp-inspection       Enabled
Switch# 

Related Commands

errdisable detect
errdisable recovery
show interfaces status

show errdisable recovery

To display error disable recovery timer information, use the show errdisable recovery command.

show errdisable recovery

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Display includes the status of storm control.


Examples

This example shows how to display recovery timer information for error disable:

Switch# show errdisable recovery
ErrDisable Reason    Timer Status
-----------------    --------------
udld                 Disabled
bpduguard            Disabled
security-violatio    Disabled
channel-misconfig    Disabled
vmps                 Disabled
pagp-flap            Disabled
dtp-flap             Disabled
link-flap            Disabled
l2ptguard            Disabled
psecure-violation    Disabled
gbic-invalid         Disabled
dhcp-rate-limit      Disabled
unicast-flood        Disabled
storm-control        Disabled
arp-inspection       Disabled

Timer interval:30 seconds

Interfaces that will be enabled at the next timeout:

Interface    Errdisable reason    Time left(sec)
---------    -----------------    --------------
 Fa7/32          arp-inspect           13

Related Commands

errdisable detect
errdisable recovery
show interfaces status

show etherchannel

To display EtherChannel information for a channel, use the show etherchannel command.

show etherchannel [channel-group] {port-channel | brief | detail | summary | port | load-balance | protocol}

Syntax Description

channel-group

(Optional) Number of the channel group; valid values are from 1 to 64.

port-channel

Displays port channel information.

brief

Displays a summary of EtherChannel information.

detail

Displays detailed EtherChannel information.

summary

Displays a one-line summary per channel group.

port

Displays EtherChannel port information.

load-balance

Displays load-balance information.

protocol

Displays the enabled protocol.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(13)EW

Support for LACP was added to this command.


Usage Guidelines

If you do not specify a channel group, all channel groups are displayed.

In the output below, the Passive port list field is displayed for Layer 3 port channels only. 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).

Examples

This example shows how to display port channel information for a specific group:

Switch# show etherchannel 1 port-channel
                Port-channels in the group:
                ----------------------
Port-channel: Po1
------------
Age of the Port-channel   = 02h:35m:26s
Logical slot/port   = 10/1           Number of ports in agport = 0
GC                  = 0x00000000      HotStandBy port = null
Passive port list   = Fa5/4 Fa5/5
Port state          = Port-channel L3-Ag Ag-Not-Inuse


Ports in the Port-channel:
Index   Load   Port
-------------------
Switch# 

This example shows how to display load-balancing information:

Switch# show etherchannel load-balance 
Source XOR Destination mac address
Switch#     

This example shows how to display a summary of information for a specific group:

Switch# show etherchannel 1 brief
Group state = L3
Ports: 2   Maxports = 8
port-channels: 1 Max port-channels = 1
Switch# 

This example shows how to display detailed information for a specific group:

Switch# show etherchannel 1 detail
Group state = L3
Ports: 2   Maxports = 8
Port-channels: 1 Max Port-channels = 1
                Ports in the group:
                -------------------
Port: Fa5/4
------------

Port state    = EC-Enbld Down Not-in-Bndl Usr-Config
Channel group = 1           Mode = Desirable     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Psudo-agport = Po1
Port indx     = 0           Load = 0x00

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

Local information:
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa5/4     d     U1/S1           1s       0        128        Any      0

Age of the port in the current state: 02h:33m:14s
Port: Fa5/5
------------

Port state    = EC-Enbld Down Not-in-Bndl Usr-Config
Channel group = 1           Mode = Desirable     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Psudo-agport = Po1
Port indx     = 0           Load = 0x00

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

Local information:
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa5/5     d     U1/S1           1s       0        128        Any      0


Age of the port in the current state: 02h:33m:17s
                Port-channels in the group:
                ----------------------

Port-channel: Po1
------------
Age of the Port-channel   = 02h:33m:52s
Logical slot/port   = 10/1           Number of ports in agport = 0
GC                  = 0x00000000      HotStandBy port = null
Passive port list   = Fa5/4 Fa5/5
Port state          = Port-channel L3-Ag Ag-Not-Inuse

Ports in the Port-channel:

Index   Load   Port
-------------------
Switch#                                                             

This example shows how to display a one-line summary per channel group:

Switch# show etherchannel summary
U-in use  I-in port-channel   S-suspended   D-down  i-stand-alone  d-default

Group Port-channel  Ports
----- ------------  ----------------------------------------------------------
1     Po1(U)        Fa5/4(I)  Fa5/5(I)
2     Po2(U)        Fa5/6(I)  Fa5/7(I)
Switch#                                                             

This example shows how to display EtherChannel port information for all ports and all groups:

Switch# show etherchannel port
                Channel-group listing:
                -----------------------

Group: 1
----------
                Ports in the group:
                -------------------
Port: Fa5/4
------------
Port state    = EC-Enbld Down Not-in-Bndl Usr-Config
Channel group = 1           Mode = Desirable     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Psudo-agport = Po1
Port indx     = 0           Load = 0x00

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

Local information:
                                Hello    Partner  PAgP     Learning  Group
Port      Flags State   Timers  Interval Count   Priority   Method  Ifindex
Fa5/4     d     U1/S1           1s       0        128        Any      0

Age of the port in the current state: 02h:40m:35s
Port: Fa5/5
------------

Port state    = EC-Enbld Down Not-in-Bndl Usr-Config
Channel group = 1           Mode = Desirable     Gcchange = 0
Port-channel  = null        GC   = 0x00000000    Psudo-agport = Po1
Port indx     = 0           Load = 0x00

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

<...output truncated...> 

Switch# 

This example shows how to display the protocol enabled:

Switch# show etherchannel protocol
                Channel-group listing:
                -----------------------

Group: 12
----------
Protocol:  PAgP

Group: 24
----------
Protocol:   -  (Mode ON)
Switch# 

Related Commands

channel-group
interface port-channel

show flowcontrol

To display the per-interface status and statistics related to flow control, use the show flowcontrol command.

show flowcontrol [module slot | interface interface]

Syntax Description

module slot

(Optional) Limits the display to interfaces on a specific module.

interface interface

(Optional) Displays the status on a specific interface.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

Table 2-14 describes the fields in the show flowcontrol command output.

Table 2-14 show flowcontrol Command Output 

Field
Description

Port

Module and port number.

Send-Flowcontrol-Admin

Flow-control administration. Possible settings: on indicates the local port sends flow control to the far end; off indicates the local port does not send flow control to the far end; desired indicates the local end sends flow control to the far end if the far end supports it.

Send-Flowcontrol-Oper

Flow-control operation. Possible setting: disagree indicates the two ports could not agree on a link protocol.

Receive-Flowcontrol-Admin

Flow-control administration. Possible settings: on indicates the local port requires the far end to send flow control; off indicates the local port does not allow the far end to send flow control; desired indicates the local end allows the far end to send flow control.

Receive-Flowcontrol-Oper

Flow-control operation. Possible setting: disagree indicates the two ports could not agree on a link protocol.

RxPause

Number of pause frames received.

TxPause

Number of pause frames transmitted.


Examples

This example shows how to display flow control status on all the gigabit interfaces:

Switch# show flowcontrol
Port    Send FlowControl  Receive FlowControl  RxPause TxPause
        admin    oper     admin    oper                       
-----   -------- -------- -------- --------    ------- -------
Gi1/1   desired  off      off      off         0       0      
Gi1/2   on       disagree on       on          0       0      
Gi3/1   on       on       on       on          0       0      
Gi3/2   desired  off      off      off         0       0      
Gi3/3   desired  off      off      off         0       0      
Gi3/4   off      off      on       on          0       0      
Gi3/5   desired  off      off      off         0       0      
Gi3/6   desired  off      off      off         0       0      
Switch# 

This example shows how to display the flow control status on module 1:

Switch# show flowcontrol module 1
Port    Send FlowControl  Receive FlowControl  RxPause TxPause
        admin    oper     admin    oper                       
-----   -------- -------- -------- --------    ------- -------
Gi1/1   desired  off      off      off         0       0      
Gi1/2   on       disagree on       on          0       0      
Switch# 

This example shows how to display the flow control status on interface 3/4:

Switch# show flowcontrol interface gigabitethernet 3/4
Port    Send FlowControl  Receive FlowControl  RxPause TxPause
        admin    oper     admin    oper                       
-----   -------- -------- -------- --------    ------- -------
Gi3/4   off      off      on       on          0       0      
Switch# 

Related Commands

flowcontrol
show interfaces status

show idprom

To display IDPROMs for the chassis, supervisor engine, module, power supplies, fan trays, clock module, and multiplexor (mux) buffer, use the show idprom command.

show idprom {all | chassis | module [mod] | interface int_name | supervisor | power-supply number | fan-tray}

Syntax Description

all

Displays information for all IDPROMs.

chassis

Displays information for chassis IDPROMs.

module

Displays information for module IDPROMs.

mod

(Optional) Specifies the module name.

interface int_name

Displays information for GBIC or SFP IDPROMs.

supervisor

Displays information for supervisor engine IDPROMs.

power-supply number

Displays information for power supply IDPROMs.

fan-tray

Displays information for the fan tray IDPROMs.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for the power-supply, fan-tray, clock-module, and mux-buffer keywords was added.

12.1(13)EW

Support for interface keyword was added.

12.2(18)EW

Enhanced the show idprom interface output to include the hexadecimal display of the GBIC/SFP SEEPROM contents.


Usage Guidelines

When you enter the show idprom interface command, the output lines for Calibration type and Rx (receive) power measurement may not be displayed for all GBICs.

Examples

This example shows how to display IDPROM information for module 4:

Switch# show idprom module 4
Module 4 Idprom:
 Common Block Signature = 0xABAB
 Common Block Version = 1
 Common Block Length = 144
 Common Block Checksum = 4199
 Idprom Size = 256
 Block Count = 2
 FRU Major Type = 0x4201
 FRU Minor Type = 303
 OEM String = Cisco Systems, Inc.
 Product Number = WS-X4306
 Serial Number = 00000135
 Part Number = <tbd> 
 Hardware Revision = 0.2
 Manufacturing Bits = 0x0000
 Engineering Bits = 0x0000
 Snmp OID = 0.0.0.0.0.0.0.0
 Power Consumption = 0
 RMA Failure Code = 0 0 0 0
 Linecard Block Signature = 0x4201
 Linecard Block Version = 1
 Linecard Block Length = 24
 Linecard Block Checksum = 658
 Feature Bits = 0x0000000000000000
 Card Feature Index = 50
 MAC Base = 0010.7bab.9830
 MAC Count = 6
Switch# 

This example shows how to display IDPROM information for the GBICs on the Gigabit Ethernet interface 1/2:

Switch# show idprom interface GigabitEthernet 1/2
GBIC Serial EEPROM Contents:
Common Block:
 Identifier        = GBIC [0x1]
 Extended Id       = Not specified/compliant with defined MOD_DEF [0x0]
 Connector         = SC connector [0x1]
 Transceiver
  Speed            = Not available [0x0]
  Media            = Not available [0x0]
  Technology       = Not available [0x0]
  Link Length      = Not available [0x0]
  GE Comp Codes    = Not available [0x0]
  SONET Comp Codes = Not available [0x0]
 Encoding          = 8B10B  [0x1]
 BR, Nominal       = 1300000000 MHz
 Length(9u) in km  = GBIC does not support single mode fibre, or the length
                     must be determined from the transceiver technology.
 Length(9u)        = > 25.4 km
 Length(50u)       = GBIC does not support 50 micron multi-mode fibre, or the
                     length must be determined from the transceiver technology.
 Length(62.5u)     = GBIC does not support 62.5 micron multi-mode fibre, or
                     the length must be determined from transceiver technology.
 Length(Copper)    = GBIC does not support copper cables, or the length must
                     be determined from the transceiver technology.
 Vendor name       = CISCO-FINISAR
 Vendor OUI        = 36965
 Vendor Part No.   = FTR-0119-CSC
 Vendor Part Rev.  = B
 Wavelength        = Not available
 CC_BASE           = 0x1A

Extended ID Fields
 Options           = Loss of Signal implemented TX_FAULT signal implemented TX_DISABLE is 
implemented and disables the serial output  [0x1A]
 BR, max           = Unspecified
 BR, min           = Unspecified
 Vendor Serial No. = K1273DH
 Date code         = 030409
 Diag monitoring   = Implemented
 Calibration type  = Internal
 Rx pwr measuremnt = Optical Modulation Amplitude (OMA)
 Address change    = Required
 CC_EXT            = 0xB2

Vendor Specific ID Fields:
20944D30  29 00 02 80 22 33 38 3D C7 67 83 E8 DF 65 6A AF   )..."38=Gg^Ch_ej/
20944D40  1A 80 ED 00 00 00 00 00 00 00 00 00 38 23 3C 1B   ............8#<.


        SEEPROM contents (hex) size 128:
0x0000  01 00 01 00 00 00 00 00 00 00 00 01 0D 00 00 FF   ................
0x0010  00 00 00 00 43 49 53 43 4F 2D 46 49 4E 49 53 41   ....CISCO-FINISA
0x0020  52 20 20 20 00 00 90 65 46 54 52 2D 30 31 31 39   R   ..^PeFTR-0119
0x0030  2D 43 53 43 20 20 20 20 42 20 20 20 00 00 00 1A   -CSC    B   ....
0x0040  00 1A 00 00 4B 31 32 37 33 44 48 20 20 20 20 20   ....K1273DH
0x0050  20 20 20 20 30 33 30 34 30 39 20 20 64 00 00 B2       030409  d..2
0x0060  29 00 02 80 22 33 38 3D C7 67 83 E8 DF 65 6A AF   )..^@"38=Gg^C._ej.
0x0070  1A 80 ED 00 00 00 00 00 00 00 00 00 38 23 3C 1B   .^@m.........8#<.
Switch# 

This example shows how to display IDPROM information for the supervisor engine:

Switch# show idprom supervisor
Supervisor Idprom:
 Common Block Signature = 0xABAB
 Common Block Version = 1
 Common Block Length = 144
 Common Block Checksum = 4153
 Idprom Size = 256
 Block Count = 2
 FRU Major Type = 0x4101
 FRU Minor Type = 333
 OEM String = Cisco Systems, Inc.
 Product Number = WS-X4014
 Serial Number = JAB05320CCE
 Part Number = 73-6854-04
 Part Revision = 05
 Manufacturing Deviation String = 0
 Hardware Revision = 0.4
 Manufacturing Bits = 0x0000
 Engineering Bits = 0x0000
 Snmp OID = 0.0.0.0.0.0.0.0
 Power Consumption = 0
 RMA Failure Code = 0 0 0 0
 Supervisor Block Signature = 0x4101
 Supervisor Block Version = 1
 Supervisor Block Length = 24
 Supervisor Block Checksum = 548
 Feature Bits = 0x0000000000000000
 Card Feature Index = 95
 MAC Base = 0007.0ee5.2a44
 MAC Count = 2
Switch# 

This example shows how to display IDPROM information for the chassis:

Switch# show idprom chassis
Chassis Idprom:
 Common Block Signature = 0xABAB
 Common Block Version = 1
 Common Block Length = 144
 Common Block Checksum = 4285
 Idprom Size = 256
 Block Count = 2
 FRU Major Type = 0x4001
 FRU Minor Type = 24
 OEM String = Cisco Systems, Inc.
 Product Number = WS-C4006
 Serial Number = FOX04473737
 Part Number = 73-4289-02
 Part Revision = 02
 Manufacturing Deviation String = 0x00
 Hardware Revision = 0.2
 Manufacturing Bits = 0x0000
 Engineering Bits = 0x0000
 Snmp OID = 0.0.0.0.0.0.0.0
 Chassis Block Signature = 0x4001
 Chassis Block Version = 1
 Chassis Block Length = 22
 Chassis Block Checksum = 421
 Feature Bits = 0x0000000000000000
 MAC Base = 0004.dd42.2600
 MAC Count = 1024
Switch# 

This example shows how to display IDPROM information for power supply 1:

Switch# show idprom power-supply 1
Power Supply 0 Idprom:
 Common Block Signature = 0xABAB
 Common Block Version = 1
 Common Block Length = 144
 Common Block Checksum = 10207
 Idprom Size = 256
 Block Count = 1
 FRU Major Type = 0xAB01
 FRU Minor Type = 8224
 OEM String = Cisco Systems, Inc. 
 Product Number = WS-CAC-1440W
 Serial Number = ACP05180002
 Part Number = 34-XXXX-01
 Part Revision = A0                      
 Manufacturing Deviation String =                     
 Hardware Revision = 1.1
 Manufacturing Bits = 0x0000
 Engineering Bits = 0x3031
 Snmp OID = 9.12.3.65535.65535.65535.65535.65535
 Power Consumption = -1
 RMA Failure Code = 255 255 255 255
 Power Supply Block Signature = 0xFFFF
 PowerSupply Block Version = 255
 PowerSupply Block Length = 255
 PowerSupply Block Checksum = 65535
 Feature Bits = 0x00000000FFFFFFFF
 Current @ 110V = -1
 Current @ 220V = -1
 StackMIB OID = 65535
Switch# 

This example shows how to display IDPROM information for the fan tray:

Switch# show idprom fan-tray
Fan Tray Idprom :
 Common Block Signature = 0xABAB
 Common Block Version = 1
 Common Block Length = 144
 Common Block Checksum = 19781
 Idprom Size = 256
 Block Count = 1
 FRU Major Type = 0x4002
 FRU Minor Type = 0
 OEM String = "Cisco Systems"
 Product Number = WS-X4502-fan
 Serial Number = 
 Part Number = 
 Part Revision = 
 Manufacturing Deviation String = 
 Hardware Revision = 0.1
 Manufacturing Bits = 0xFFFF
 Engineering Bits = 0xFFFF
 Snmp OID = 65535.65535.65535.65535.65535.65535.65535.65535
 Power Consumption = -1
 RMA Failure Code = 255 255 255 255
Switch# 

show interfaces

To display traffic on a specific interface, use the show interfaces command.

show interfaces [{{FastEthernet mod/interface-number} | {GigabitEthernet mod/interface-number} | {null interface-number} | vlan vlan_id} | status}]

Syntax Description

FastEthernet mod/interface-number

(Optional) Specifies the Fast Ethernet module and interface.

GigabitEthernet mod/interface-number

(Optional) Specifies the Gigabit Ethernet module and interface.

null interface-number

(Optional) Specifies the null interface; the valid value is 0.

vlan vlan_id

(Optional) Specifies the VLAN; valid values are from 1 to 4094.

status

(Optional) Displays status information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for extended VLAN addresses was added.


Usage Guidelines

Statistics are collected on a per-VLAN basis for Layer 2-switched packets and Layer 3-switched packets. Statistics are available for both unicast and multicast. The Layer 3-switched packet counts are available for both ingress and egress directions. The per-VLAN statistics are updated every 5 seconds.

In some cases, you might see a difference in the duplex mode displayed between the show interfaces command and the show running-config commands. The duplex mode displayed in the show interfaces command is the actual duplex mode the interface is running. The show interfaces command shows the operating mode for an interface, while the show running-config command shows the configured mode for an interface.

If you do not enter any keywords, all counters for all modules are displayed.

Examples

This example shows how to display traffic for a specific interface:

Switch# show interfaces GigabitEthernet 2/5
GigabitEthernet9/5 is up, line protocol is up 
Hardware is C4k 1000Mb 802.3, address is 0001.64f8.3fa5 (bia 0001.64f8.3fa5)
Internet address is 172.20.20.20/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 1000 bits/sec, 2 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
L2 Switched: ucast: 8199 pkt, 1362060 bytes - mcast: 6980 pkt, 371952 bytes
L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcast
L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes 
300114 packets input, 27301436 bytes, 0 no buffer
Received 43458 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
15181 packets output, 1955836 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Switch# 

This example shows how to display status information for Gigabit Ethernet interface 1/2:

Switch# show interfaces Gi1/2 status
Port      Name         Status       Vlan       Duplex  Speed Type
Gi1/2                  notconnect   1            auto   1000 1000-XWDM-RXONLY
Switch# 

show interfaces capabilities

To display the interface capabilities for an interface or for all the interfaces on a switch, use the show interfaces capabilities command.

show interfaces capabilities [{module mod}]

show interfaces [interface interface-number] capabilities

Syntax Description

module mod

(Optional) Keyword and variable to display information for the specified module only.

interface

(Optional) Specifies the interface type. Valid values are fastethernet, gigabitethernet, and port-channel.

interface-number

(Optional) Specifies the port number.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The interface-number variable designates the module and port number. Valid values for interface-number depend on the chassis and module used. For example, if you have a 48-port 10/100-Mbps Fast Ethernet RJ-21 (telco connector) switching module installed in a Catalyst 4507 chassis, valid values for the slot number are from 2 to 13 and valid values for the port number are 1 to 48.

Examples

This example shows how to display interface capabilities for a module:

Router# show interfaces capabilities module 1 
GigabitEthernet1/1
  Model:                WS-X4516-Gbic
  Type:                 Unsupported GBIC
  Speed:                1000
  Duplex:               full
  Trunk encap. type:    802.1Q,ISL
  Trunk mode:           on,off,desirable,nonegotiate
  Channel:              yes
  Broadcast suppression:percentage(0-100), hw
  Flowcontrol:          rx-(off,on,desired),tx-(off,on,desired)
  VLAN Membership:      static, dynamic
  Fast Start:           yes
  Queuing:              rx-(N/A), tx-(4q1t, Sharing/Shaping)
  CoS rewrite:          yes
  ToS rewrite:          yes
  Inline power:         no
  SPAN:                 source/destination
  UDLD                   yes
  Link Debounce:        no
  Link Debounce Time:   no
  Port Security          yes
  Dot1x                  yes
GigabitEthernet1/2
  Model:                WS-X4516-Gbic
  Type:                 Unsupported GBIC
  Speed:                1000
  Duplex:               full
  Trunk encap. type:    802.1Q,ISL
  Trunk mode:           on,off,desirable,nonegotiate
  Channel:              yes
  Broadcast suppression:percentage(0-100), hw
  Flowcontrol:          rx-(off,on,desired),tx-(off,on,desired)
  VLAN Membership:      static, dynamic
  Fast Start:           yes
  Queuing:              rx-(N/A), tx-(4q1t, Sharing/Shaping)
  CoS rewrite:          yes
  ToS rewrite:          yes
  Inline power:         no
  SPAN:                 source/destination
  UDLD                   yes
  Link Debounce:        no
  Link Debounce Time:   no
  Port Security          yes
  Dot1x                  yes
Router# 

This example shows how to display interface capabilities for interface gi1/1:

Switch# show interface gigabitetherneti1/1 capabilities
GigabitEthernet1/1
  Model:                WS-X4014-Gbic
  Type:                 No Gbic
  Speed:                1000
  Duplex:               full
  Trunk encap. type:    802.1Q,ISL
  Trunk mode:           on,off,desirable,nonegotiate
  Channel:              yes
  Broadcast suppression:percentage(0-100), hw
  Flowcontrol:          rx-(off,on,desired),tx-(off,on,desired)
  VLAN Membership:      static, dynamic
  Fast Start:           yes
  Queuing:              rx-(N/A), tx-(4q1t, Sharing/Shaping)
  CoS rewrite:          yes
  ToS rewrite:          yes

  Inline power:         no
  SPAN:                 source/destination
  UDLD:                 yes
  Link Debounce:        no
  Link Debounce Time:   no
  Port Security:        yes
  Dot1x:                yes
  MTU Supported:        jumbo frames, baby giants
Switch#

This example shows how to display interface capabilities for interface fa3/1:

Switch# show interface fastethernet3/1 capabilities
FastEthernet3/1
  Model:                WS-X4148-RJ-RJ-45
  Type:                 10/100BaseTX
  Speed:                10,100,auto
  Duplex:               half,full,auto
  Trunk encap. type:    802.1Q,ISL
  Trunk mode:           on,off,desirable,nonegotiate
  Channel:              yes
  Broadcast suppression:percentage(0-100), sw
  Flowcontrol:          rx-(none),tx-(none)
  VLAN Membership:      static, dynamic
  Fast Start:           yes
  Queuing:              rx-(N/A), tx-(4q1t, Shaping)
  CoS rewrite:          yes
  ToS rewrite:          yes
  Inline power:         no
  SPAN:                 source/destination
  UDLD:                 yes
  Link Debounce:        no
  Link Debounce Time:   no
  Port Security:        yes
  Dot1x:                yes
  MTU Supported:        no jumbo frames, baby giants
Switch#

Related Commands

show interfaces counters

show interfaces counters

To display traffic on the physical interface, use the show interfaces counters command.

show interfaces counters [all | detail | errors | storm-control | trunk] [module mod]

Syntax Description

all

(Optional) Displays all interface counters including errors, trunk, and detail.

detail

(Optional) Displays detailed interface counters.

errors

(Optional) Displays interface error counters.

storm-control

(Optional) Displays the number of packets discarded due to suppression on the interface.

trunk

(Optional) Displays interface trunk counters.

module mod

(Optional) Limits the display to interfaces on a specific module.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Support for storm control.

12.2(18)EW

Support for the display of total suppression discards.


Usage Guidelines

If you do not enter any keywords, all counters for all modules are displayed.

The display for the storm-control keyword includes suppressed multicast bytes.

Examples

This example shows how to display error counters for a specific module:

Switch# show interfaces counters errors module 1

Port        Align-Err    FCS-Err   Xmit-Err    Rcv-Err UnderSize
Gi1/1               0          0          0          0         0
Gi1/2               0          0          0          0         0

Port      Single-Col Multi-Col  Late-Col Excess-Col Carri-Sen     Runts    Giants
Gi1/1              0         0         0          0         0         0       0
Gi1/2              0         0         0          0         0         0       0
Switch# 

This example shows how to display traffic seen by a specific module:

Switch# show interfaces counters module 1

Port            InOctets   InUcastPkts   InMcastPkts   InBcastPkts
Gi1/1                  0             0             0             0
Gi1/2                  0             0             0             0

Port           OutOctets  OutUcastPkts  OutMcastPkts  OutBcastPkts
Gi1/1                  0             0             0             0
Gi1/2                  0             0             0             0
Switch# 

This example shows how to display trunk counters for a specific module:

Switch# show interfaces counters trunk module 1

Port        TrunkFramesTx  TrunkFramesRx  WrongEncap
Gi1/1                   0              0           0
Gi1/2                   0              0           0
Switch#                                                            

This example shows how to display the number of packets discarded due to suppression:

Switch# show interfaces counters storm-control

Multicast Suppression : Enabled

Port        BcastSuppLevel  TotalSuppressionDiscards
Fa5/35              10.00%               6278550
Switch#

Related Commands

show interfaces capabilities

show interfaces description

To display a description and status of an interface, use the show interfaces description command.

show interfaces [interface] description

Syntax Description

interface

(Optional) Type of interface.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display information for all interfaces:

Switch# show interfaces description
 Interface Status         Protocol Description
 PO0/0     admin down     down     First interface
 PO0/1     admin down     down     
 Gi1/1     up             up       GigE to server farm
Switch# 

Related Commands

description (refer to Cisco IOS documentation)

show interfaces link

To display how long a cable has been disconnected from an interface, use the show interfaces link command:

show interfaces link [module mod_num]

Syntax Description

module mod_num

(Optional) Limits the display to interfaces on a module.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.2(18)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If the interface state is up, the command displays 0:00. If the interface state is down, the time (in hours, minutes, and seconds) is displayed.

Examples

This example shows how to display active link-level information:

Switch# show interfaces link

Port    Name               Down Time
Gi1/1                       00:00:00
Gi1/2                       00:00:00
Gi3/1    				          00:00:00
Gi3/2    				          00:00:00
Fa4/1                       00:00:00
Fa4/2                       00:00:00
Fa4/3                       00:00:00
Fa4/4                       00:00:00

This example shows how to display inactive link-level information:

Switch# show interfaces link

Port    Name               Down Time
Gi3/4                      1 minute 28 secs
Gi3/5                      1 minute 28 secs
Gi3/6                      1 minute 28 secs
Gi4/1                      1 minute 28 secs

In this example, the cable has been disconnected from the port for 1 minute and 28 seconds.

show interfaces mtu

To display the maximum transmission unit (MTU) size of all the physical interfaces and SVIs on the switch, use the show interfaces mtu command.

show interfaces mtu [module mod]

Syntax Description

module mod

(Optional) Limits the display to interfaces on a specific module.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the MTU size for all interfaces on module 1:

Switch> show interfaces mtu module 1

Port    Name               MTU
Gi1/1                      1500
Gi1/2                      1500
Switch> 

Related Commands

mtu

show interfaces private-vlan mapping

To display PVLAN mapping information for VLAN SVIs, use the show interface private-vlan mapping command.

show interface private-vlan mapping [active]

Syntax Description

active

(Optional) Displays active interfaces only.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

This command displays SVI information only.

Examples

This example shows how to display PVLAN mapping information:

Switch# show interface private-vlan mapping
Interface Secondary VLAN Type
--------- -------------- -----------------
vlan2     301            isolated
vlan2     302            isolated
Switch# 

Related Commands

private-vlan
private-vlan mapping

show interfaces status

To display interface status or a list of interfaces in error-disabled state, use the show interfaces status command.

show interfaces status [err-disabled]

Syntax Description

err-disabled

(Optional) Displays interfaces in error-disabled state.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the status of all interfaces:

Switch# show interfaces status

Port    Name               Status     Vlan       Duplex Speed Type
Gi1/1                      disabled   routed       full  1000 missing
Gi1/2                      notconnect 1            full  1000 unknown (4)
Fa5/1                      disabled   routed       auto  auto 10/100BaseTX
Fa5/2                      disabled   routed       auto  auto 10/100BaseTX
Fa5/3                      disabled   routed       auto  auto 10/100BaseTX
Fa5/4                      disabled   routed       auto  auto 10/100BaseTX
...
Fa5/15                     disabled   routed       auto  auto 10/100BaseTX
Fa5/16                     disabled   routed       auto  auto 10/100BaseTX
Fa5/17                     disabled   routed       auto  auto 10/100BaseTX
Switch# 

This example shows how to display the status of interfaces in error-disabled state:

Switch# show interfaces status err-disabled 

Port    Name               Status       Reason
Fa9/4                      notconnect   link-flap

informational error message when the timer expires on a cause
--------------------------------------------------------------

5d04h:%PM-SP-4-ERR_RECOVER:Attempting to recover from link-flap err-disable state on Fa9/4
Switch# 

Related Commands

errdisable detect
show errdisable recovery

show interfaces switchport

To display the administrative and operational status of a switching (nonrouting) port, use the show interfaces switchport command.

show interfaces [interface-id] switchport [module mod]

Syntax Description

interface-id

(Optional) Specifies the interface ID for the physical port.

module mod

(Optional) Limits the display to interfaces on the specified module; valid values are from 1 to 6.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Support for per-interface display.

12.2(18)EW

Support for displaying the status of native VLAN tagging in the command output.


Examples

This example shows how to display switch-port information using the begin output modifier:

Switch# show interfaces switchport | include VLAN
Name: Fa5/6
Access Mode VLAN: 200 (VLAN0200)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: ALL
Switch#                                   

This example shows how to display switch-port information for module 1:

Switch# show interfaces switchport module 1
Name:Gi1/1
Switchport:Enabled
Administrative Mode:dynamic auto
Operational Mode:down
Administrative Trunking Encapsulation:negotiate
Negotiation of Trunking:On
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Administrative private-vlan host-association:none
Administrative private-vlan mapping:none
Operational private-vlan:none
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001

Name:Gi1/2
Switchport:Enabled
Administrative Mode:dynamic auto
Operational Mode:down
Administrative Trunking Encapsulation:negotiate
Negotiation of Trunking:On
Access Mode VLAN:1 (default)
Trunking Native Mode VLAN:1 (default)
Administrative private-vlan host-association:none
Administrative private-vlan mapping:none
Operational private-vlan:none
Trunking VLANs Enabled:ALL
Pruning VLANs Enabled:2-1001
Switch# 

This example shows how to display the status of native VLAN tagging on the port:

Switch# show interfaces g1/2 switchport
Name: Gi1/2
Switchport: Enabled
Administrative Mode: dynamic auto
Operational Mode: static access
Administrative Trunking Encapsulation: negotiate
Operational Trunking Encapsulation: native
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Native VLAN tagging: Disabled **
Voice VLAN: none
Administrative private-vlan host-association: none 
Administrative private-vlan mapping: none 
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs: none
Administrative private-vlan trunk Native VLAN tagging: Disabled
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

Related Commands

show interfaces capabilities
show interfaces counters

show interfaces transceiver

To display diagnostic-monitoring data for all interfaces that have transceivers installed, use the show interfaces transceiver command.

show interfaces {{[int_name] transceiver {[detail]} | {transceiver [module mod] | detail [module mod]}}

Syntax Description

int_name

(Optional) Specifies an interface.

detail

(Optional) Displays the calibrated values and the A2D readouts if the readout values differ from the calibrated values. Also displays the high-alarm, high-warning, low-warning, and low-alarm thresholds.

module mod

(Optional) Limits the display to interfaces on a specific module.


Defaults

The non-interface-specific versions of the show interfaces transceiver command are enabled by default.

The interface-specific versions of these commands are enabled by default if the specified interface has a transceiver (GBIC or SFP) configured for diagnostic monitoring, and the transceiver is in a module that supports diagnostic monitoring.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(20)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.2(18)EW

Support for the calibration keyword was withdrawn.


Usage Guidelines

The show interfaces transceiver command provides useful information under the following conditions:

At least one transceiver is installed on a chassis that is configured for diagnostic monitoring.

The transceiver is in a module that supports diagnostic monitoring.

If you notice that alarm and warning flags have been set on a transceiver, reenter the command to confirm.

Examples

This example shows how to display diagnostic monitoring data for all interfaces with transceivers installed on the switch:

Switch# show interfaces transceiver
    If device is externally calibrated, only calibrated values are printed.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    NA or N/A: not applicable, Tx: transmit, Rx: receive.
    mA: milliamperes, dBm: decibels (milliwatts). 
                                             Optical   Optical
             Temperature  Voltage  Current   Tx Power  Rx Power
    Port     (Celsius)    (Volts)  (mA)      (dBm)     (dBm)
    -------  -----------  -------  --------  --------  --------
    Gi1/1      48.1       3.30       0.0       8.1 ++   N/A    
    Gi1/2      33.0       3.30       1.8     -10.0     -36.9   
    Gi2/1      43.7       5.03      50.6 +   -16.7 --   N/A    
    Gi2/2      39.2       5.02      25.7       0.8      N/A 
Switch# 


Note The value for Optical Tx Power (in dBm) equals ten times log (Tx Power in mW). If the Tx Power value is 3 mW, then the Optical Tx Power value equals 10 * log (3), which equals 10 * .477 or 4.77 dBm. The Optical Rx Power value behaves similarly. If Tx Power or Rx Power is zero, then its dBm value is undefined and is shown as N/A (not applicable).


This example shows how to display detailed diagnostic monitoring data, including calibrated values, alarm and warning thresholds, A2D readouts, and alarm and warning flags. The A2D readouts are reported separately in parentheses only if they differ from the calibrated values:

Switch# show interfaces transceiver detail
    mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    A2D readouts (if they differ), are reported in parentheses.
    The threshold values are calibrated.
    
                                High Alarm  High Warn  Low Warn   Low Alarm
            Temperature         Threshold   Threshold  Threshold  Threshold
    Port     (Celsius)          (Celsius)   (Celsius)  (Celsius)  (Celsius)
    ------- ------------------  ----------  ---------  ---------  ---------
    Gi1/1     48.1               100.0       100.0         0.0        0.0
    Gi1/2     34.9               100.0       100.0         0.0        0.0
    Gi2/1     43.5                70.0        60.0         5.0        0.0
    Gi2/2     39.1                70.0        60.0         5.0        0.0
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Voltage            Threshold   Threshold  Threshold  Threshold
    Port     (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
    -------  ---------------    ----------  ---------  ---------  ---------
    Gi1/1    3.30                  6.50        6.50         N/A        N/A
    Gi1/2    3.30                  6.50        6.50         N/A        N/A
    Gi2/1    5.03                  5.50        5.25        4.75       4.50
    Gi2/2    5.02                  5.50        5.25        4.75       4.50
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Current            Threshold   Threshold  Threshold  Threshold
    Port     (milliamperes)     (mA)        (mA)       (mA)       (mA)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi1/1      0.0               130.0       130.0        N/A        N/A 
    Gi1/2      1.7               130.0       130.0        N/A        N/A 
    Gi2/1     50.6         +      60.0        40.0        10.0        5.0
    Gi2/2     25.8                60.0        40.0        10.0        5.0
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Transmit Power     Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi1/1      8.1         ++      8.1         8.1        N/A        N/A 
    Gi1/2     -9.8                 8.1         8.1        N/A        N/A 
    Gi2/1    -16.7 (-13.0) --      3.4         3.2        -0.3       -0.5
    Gi2/2      0.8 (  5.1)         3.4         3.2        -0.3       -0.5
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Receive Power      Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi1/1     N/A                  8.1         8.1        N/A        N/A 
    Gi1/2    -30.9                 8.1         8.1        N/A        N/A 
    Gi2/1     N/A  (-28.5)         5.9        -6.7       -28.5      -28.5
    Gi2/2     N/A  (-19.5)         5.9        -6.7       -28.5      -28.5
Switch# 

This example shows how to display monitoring data for the interfaces that have transceivers installed on module 2:

Switch# show interfaces transceiver module 2
    If device is externally calibrated, only calibrated values are printed.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    NA or N/A: not applicable, Tx: transmit, Rx: receive.
    mA: milliamperes, dBm: decibels (milliwatts).
    
                                             Optical   Optical
             Temperature  Voltage  Current   Tx Power  Rx Power
    Port     (Celsius)    (Volts)  (mA)      (dBm)     (dBm)
    -------  -----------  -------  --------  --------  --------
    Gi2/1      43.7       5.03      50.6 +   -16.7 --   N/A    
    Gi2/2      39.2       5.02      25.7       0.8      N/A 
Switch# 

This example shows how to display detailed monitoring data for the interfaces that have transceivers installed on module 2:

Switch# show interfaces transceiver detail module 2
    mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    A2D readouts (if they differ), are reported in parentheses.
    The threshold values are calibrated.
    
                                High Alarm  High Warn  Low Warn   Low Alarm
            Temperature         Threshold   Threshold  Threshold  Threshold
    Port     (Celsius)          (Celsius)   (Celsius)  (Celsius)  (Celsius)
    ------- ------------------  ----------  ---------  ---------  ---------
    Gi2/1     43.5                70.0        60.0         5.0        0.0
    Gi2/2     39.1                70.0        60.0         5.0        0.0
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Voltage            Threshold   Threshold  Threshold  Threshold
    Port     (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
    -------  ---------------    ----------  ---------  ---------  ---------
    Gi2/1    5.03                  5.50        5.25        4.75       4.50
    Gi2/2    5.02                  5.50        5.25        4.75       4.50
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Current            Threshold   Threshold  Threshold  Threshold
    Port     (milliamperes)     (mA)        (mA)       (mA)       (mA)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1     50.6         +      60.0        40.0        10.0        5.0
    Gi2/2     25.8                60.0        40.0        10.0        5.0
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Transmit Power     Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1    -16.7 (-13.0) --      3.4         3.2        -0.3       -0.5
    Gi2/2      0.8 (  5.1)         3.4         3.2        -0.3       -0.5
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Receive Power      Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1     N/A  (-28.5)         5.9        -6.7       -28.5      -28.5
    Gi2/2     N/A  (-19.5)         5.9        -6.7       -28.5      -28.5
Switch# 

This example shows how to display monitoring data for the transceivers on interface Gi1/2:

Switch# show interfaces g1/2 transceiver
    ITU Channel 23 (1558.98 nm),
    Transceiver is externally calibrated.
    If device is externally calibrated, only calibrated values are printed.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    NA or N/A: not applicable, Tx: transmit, Rx: receive.
    mA: milliamperes, dBm: decibels (milliwatts).
    
                                             Optical   Optical
             Temperature  Voltage  Current   Tx Power  Rx Power
    Port     (Celsius)    (Volts)  (mA)      (dBm)     (dBm)
    -------  -----------  -------  --------  --------  --------
    Gi2/1      43.7       5.03      50.6 +   -16.7 --   N/A 

Switch#

This example shows how to display detailed monitoring data for the transceivers on interface Gi1/2:

Switch# show interfaces g1/2 transceiver detail
    ITU Channel 23 (1558.98 nm),
    Transceiver is externally calibrated.
    mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
    ++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
    A2D readouts (if they differ), are reported in parentheses.
    The threshold values are calibrated.
    
                                High Alarm  High Warn  Low Warn   Low Alarm
            Temperature         Threshold   Threshold  Threshold  Threshold
    Port     (Celsius)          (Celsius)   (Celsius)  (Celsius)  (Celsius)
    ------- ------------------  ----------  ---------  ---------  ---------
    Gi2/1     43.5                70.0        60.0         5.0        0.0
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Voltage            Threshold   Threshold  Threshold  Threshold
    Port     (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
    -------  ---------------    ----------  ---------  ---------  ---------
    Gi2/1    5.03                  5.50        5.25        4.75       4.50
    
                                High Alarm  High Warn  Low Warn   Low Alarm
             Current            Threshold   Threshold  Threshold  Threshold
    Port     (milliamperes)     (mA)        (mA)       (mA)       (mA)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1     50.6         +      60.0        40.0        10.0        5.0
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Transmit Power     Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1    -16.7 (-13.0) --      3.4         3.2        -0.3       -0.5
    
             Optical            High Alarm  High Warn  Low Warn   Low Alarm
             Receive Power      Threshold   Threshold  Threshold  Threshold
    Port     (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
    -------  -----------------  ----------  ---------  ---------  ---------
    Gi2/1     N/A  (-28.5)         5.9        -6.7       -28.5      -28.5
Switch# 

Related Commands

show idprom
show interfaces status

show interfaces trunk

To display port and module interface-trunk information, use the show interfaces trunk command.

show interfaces trunk [module mod]

Syntax Description

module mod

(Optional) Limits the display to interfaces on the specified module; valid values are from 1 to 6.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If you do not specify a keyword, only information for trunking ports is displayed.

Examples

This example shows how to display interface-trunk information for module 5:

Switch# show interfaces trunk module 5

Port      Mode         Encapsulation  Status        Native vlan
Fa5/1     routed       negotiate      routed        1
Fa5/2     routed       negotiate      routed        1
Fa5/3     routed       negotiate      routed        1
Fa5/4     routed       negotiate      routed        1
Fa5/5     routed       negotiate      routed        1
Fa5/6     off          negotiate      not-trunking  10
Fa5/7     off          negotiate      not-trunking  10
Fa5/8     off          negotiate      not-trunking  1
Fa5/9     desirable    n-isl          trunking      1
Fa5/10    desirable    negotiate      not-trunking  1
Fa5/11    routed       negotiate      routed        1
Fa5/12    routed       negotiate      routed        1
...
Fa5/48    routed       negotiate      routed        1

Port      Vlans allowed on trunk
Fa5/1     none
Fa5/2     none
Fa5/3     none
Fa5/4     none
Fa5/5     none
Fa5/6     none
Fa5/7     none
Fa5/8     200
Fa5/9     1-1005
Fa5/10    none
Fa5/11    none
Fa5/12    none

Fa5/48    none

Port      Vlans allowed and active in management domain
Fa5/1     none
Fa5/2     none
Fa5/3     none
Fa5/4     none
Fa5/5     none
Fa5/6     none
Fa5/7     none
Fa5/8     200
Fa5/9     1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-8
02,850,917,999,1002-1005
Fa5/10    none
Fa5/11    none
Fa5/12    none


Fa5/48    none

Port      Vlans in spanning tree forwarding state and not pruned
Fa5/1     none
Fa5/2     none
Fa5/3     none
Fa5/4     none
Fa5/5     none
Fa5/6     none
Fa5/7     none
Fa5/8     200
Fa5/9     1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-8
02,850,917,999,1002-1005
Fa5/10    none
Fa5/11    none


Fa5/48    none
Switch#                       

This example shows how to display trunking information for active trunking ports:

Switch# show interfaces trunk

Port      Mode         Encapsulation  Status        Native vlan
Fa5/9     desirable    n-isl          trunking      1

Port      Vlans allowed on trunk
Fa5/9     1-1005

Port      Vlans allowed and active in management domain
Fa5/9     1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-8
02,850,917,999,1002-1005

Port      Vlans in spanning tree forwarding state and not pruned
Fa5/9     1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-8
02,850,917,999,1002-1005
Switch#                                                                        

show ip arp inspection

To show the status of dynamic ARP inspection for a specific range of VLANs, use the show ip arp inspection command.

show ip arp inspection {[statistics] vlan vlan-range | interfaces [interface-name]}

Syntax Description

statistics

(Optional) Displays statistics for the following types of packets that have been processed by this feature: forwarded, dropped, MAC validation failure, and IP validation failure.

vlan vlan-range

(Optional) When used with the statistics keyword, displays the statistics for the selected range of VLANs. Without the statistics keyword, displays the configuration and operating state of DAI for the selected range of VLANs.

interfaces interface-name

(Optional) Displays the trust state and the rate limit of ARP packets for the provided interface. When the interface name is not specified, the command displays the trust state and rate limit for all applicable interfaces in the system.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the statistics of packets that have been processed by DAI for
VLAN 3:

Switch# show ip arp inspection statistics vlan 3

 Vlan      Forwarded        Dropped     DHCP Drops     ACL Drops
 ----      ---------        -------     ----------     ----------
    3          31753         102407         102407              0

 Vlan   DHCP Permits    ACL Permits   Source MAC Failures
 ----   ------------    -----------   -------------------
    3          31753              0                    0

 Vlan   Dest MAC Failures   IP Validation Failures
 ----   -----------------   ----------------------
    3                  0                        0
Switch#

This example shows how to display the statistics of packets that have been processed by DAI for all active VLANs:

Switch# show ip arp inspection statistics

 Vlan      Forwarded        Dropped     DHCP Drops     ACL Drops
 ----      ---------        -------     ----------     ----------
    1              0              0              0              0
    2              0              0              0              0
    3          68322         220356         220356              0
    4              0              0              0              0
  100              0              0              0              0
  101              0              0              0              0
 1006              0              0              0              0
 1007              0              0              0              0

 Vlan   DHCP Permits    ACL Permits   Source MAC Failures
 ----   ------------    -----------   -------------------
    1              0              0                    0
    2              0              0                    0
    3          68322              0                    0
    4              0              0                    0
  100              0              0                    0
  101              0              0                    0
 1006              0              0                    0
 1007              0              0                    0

 Vlan   Dest MAC Failures   IP Validation Failures
 ----   -----------------   ----------------------
    1                  0                        0
    2                  0                        0
    3                  0                        0
    4                  0                        0
  100                  0                        0
  101                  0                        0
 1006                  0                        0
 1007                  0                        0
Switch#

This example shows how to display the configuration and operating state of DAI for VLAN 1:

Switch# show ip arp inspection vlan 1
Source Mac Validation      : Disabled
Destination Mac Validation : Disabled
IP Address Validation      : Disabled

 Vlan     Configuration    Operation   ACL Match          Static ACL
 ----     -------------    ---------   ---------          ----------
    1     Enabled          Active                        

 Vlan     ACL Logging      DHCP Logging
 ----     -----------      ------------
    1     Deny             Deny 
Switch#

This example shows how to display the trust state of interface Fa6/3:

Switch# show ip arp inspection interfaces fastEthernet 6/3
Interface        Trust State     Rate (pps)    Burst Interval
 ---------------  -----------     ----------    --------------
 Fa6/1            Untrusted               20                 5
Switch#

This example shows how to display the trust state of the interfaces on the switch:

Switch# show ip arp inspection interfaces
Interface        Trust State     Rate (pps)
 ---------------  -----------     ----------
 Gi1/1            Untrusted               15
 Gi1/2            Untrusted               15
 Gi3/1            Untrusted               15
 Gi3/2            Untrusted               15
 Fa3/3            Trusted               None
 Fa3/4            Untrusted               15
 Fa3/5            Untrusted               15
 Fa3/6            Untrusted               15
 Fa3/7            Untrusted               15
Switch#

Related Commands

arp access-list
clear ip arp inspection log
show ip arp inspection

show ip arp inspection log

To show the status of the log buffer, use the show ip arp inspection log command.

show ip arp inspection log

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the current contents of the log buffer before and after the buffers are cleared:

Switch# show ip arp inspection log
Total Log Buffer Size : 10
Syslog rate : 0 entries per 10 seconds.

 Interface        Vlan   Sender MAC         Sender IP        Num of Pkts
 ---------------  -----  -----------------  ---------------  -----------
Fa6/3            1     0002.0002.0002  1.1.1.2          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.3          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.4          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.5          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.6          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.7          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.8          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.9          1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.10         1(12:02:52 UTC Fri Apr 25 2003)
Fa6/3            1     0002.0002.0002  1.1.1.11         1(12:02:52 UTC Fri Apr 25 2003)
    --            --         --               --        5(12:02:52 UTC Fri Apr 25 2003)
Switch#

This example shows how to clear the buffer with the clear ip arp inspection log command:

Switch# clear ip arp inspection log 
Switch# show ip arp inspection log 
Total Log Buffer Size : 10
Syslog rate : 0 entries per 10 seconds.
No entries in log buffer.
Switch#

Related Commands

arp access-list
clear ip arp inspection log

show ip cef vlan

To view IP CEF VLAN interface status and configuration information and display the prefixes for a specific interface, use the show ip cef vlan command.

show ip cef vlan vlan_num [detail]

Syntax Description

vlan_num

Number of the VLAN.

detail

(Optional) Displays detailed information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the prefixes for a specific VLAN:

Switch# show ip cef vlan 1003
Prefix              Next Hop             Interface
0.0.0.0/0           172.20.52.1          FastEthernet3/3
0.0.0.0/32          receive
10.7.0.0/16         172.20.52.1          FastEthernet3/3
10.16.18.0/23       172.20.52.1          FastEthernet3/3
Switch# 

This example shows how to display detailed IP CEF information for a specific VLAN:

Switch# show ip cef vlan 1003 detail
IP Distributed CEF with switching (Table Version 2364), flags=0x0
  1383 routes, 0 reresolve, 0 unresolved (0 old, 0 new)
  1383 leaves, 201 nodes, 380532 bytes, 2372 inserts, 989 invalidations
  0 load sharing elements, 0 bytes, 0 references
  universal per-destination load sharing algorithm, id 9B6C9823
  3 CEF resets, 0 revisions of existing leaves
  refcounts:  54276 leaf, 51712 node

Adjacency Table has 5 adjacencies
Switch# 

show ip dhcp snooping

To display the DHCP snooping configuration, use the show ip dhcp snooping command.

show ip dhcp snooping

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the DHCP snooping configuration:

Switch# show ip dhcp snooping 
Switch DHCP snooping is enabled 
DHCP snooping is configured on following VLANs: 
5 10 
Insertion of option 82 is enabled 
Interface                Trusted     Rate limit (pps) 
--------------------     -------     ---------------- 
FastEthernet6/11         no          10 
FastEthernet6/36         yes         50 
Switch# 

Related Commands

ip dhcp snooping
ip dhcp snooping information option
ip dhcp snooping limit rate
ip dhcp snooping trust
ip dhcp snooping vlan

show ip dhcp snooping binding

To display DHCP snooping binding entries, use the show ip dhcp snooping binding command.

show ip dhcp snooping binding [ip-address] [mac-address] [vlan vlan_num]
[
interface interface_num]

Syntax Description

ip-address

(Optional) Specifies the binding entries IP address.

mac-address

(Optional) Specifies the binding entries MAC address.

vlan vlan_num

(Optional) Specifies a VLAN.

interface interface_num

(Optional) Specifies an interface.


Defaults

If no argument is specified the switch will display the entire DHCP snooping binding table.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

DHCP snooping is enabled on a VLAN only if both the global snooping and the VLAN snooping are enabled.

To configure a range of VLANs, use the optional last_vlan variable to specify the end of the VLAN range.

Examples

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

Switch# show ip dhcp snooping binding 

MacAddress      IP Address     Lease (seconds)     Type               VLAN     Interface 
-----------     -----------    ----------------    -------------      -----    ------------ 
0000.0100.0201   10.0.0.1         1600                 dhcp-snooping       100       FastEthernet3/1
Switch# 

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

Switch# show ip dhcp snooping binding 172.100.101.102

MacAddress      IP Address       Lease (seconds)     Type               VLAN     Interface 
-----------     -----------      ----------------    -------------      -----    ------------ 
0000.0100.0201    172.100.101.102   1600                 dhcp-snooping       100       FastEthernet3/1
Switch# 

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

Switch# show ip dhcp snooping binding 55.5.5.2 0002.b33f.3d5f 

MacAddress          IpAddress        Lease(sec)  Type               VLAN  Interface 
------------------  ---------------  ----------  -------------      ----  -------------------- 
00:02:B3:3F:3D:5F   55.5.5.2         492         dhcp-snooping       99 FastEthernet6/36 
Switch# 

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

Switch# show ip dhcp snooping binding 55.5.5.2 0002.b33f.3d5f vlan 99 

MacAddress          IpAddress        Lease(sec)  Type                VLAN  Interface 
------------------  ---------------  ----------  -------------       ----  -------------------- 
00:02:B3:3F:3D:5F   55.5.5.2         479         dhcp-snooping       99    FastEthernet6/36 
Switch# 

This example shows how to display dynamic DHCP snooping binding entries:

Switch# show ip dhcp snooping binding dynamic

MacAddress      IP Address     Lease (seconds)      Type              VLAN     Interface 
-----------     -----------    ----------------     ------------      -----    ------------ 
0000.0100.0201   10.0.0.1         1600                 dhcp-snooping       100       FastEthernet3/1
Switch# 

This example shows how to display DHCP snooping binding entries on VLAN 100:

Switch# show ip dhcp snooping binding vlan 100'

MacAddress      IP Address     Lease (seconds)     Type              VLAN     Interface 
-----------     -----------    ----------------    ------------      -----    ------------ 
0000.0100.0201   10.0.0.1         1600                dhcp-snooping       100       FastEthernet3/1
Switch# 

This example shows how to display DHCP snooping binding entries on Ethernet interface 0/1:

Switch# show ip dhcp snooping binding interface FastEthernet3/1

MacAddress      IP Address     Lease (seconds)     Type              VLAN     Interface 
-----------     -----------    ----------------    ------------      -----    ------------ 
0000.0100.0201   10.0.0.1         1600                dhcp-snooping       100       FastEthernet3/1
Switch# 

Table 2-15 describes the fields in the show ip dhcp snooping command output.

Table 2-15 show ip dhcp snooping Command Output

Field
Description 

Mac Address

Client hardware MAC address

IP Address

Client IP address assigned from the DHCP server

Lease (seconds)

IP address lease time

Type

Binding type; statically configured from CLI or dynamically learned

VLAN

VLAN number of the client interface

Interface

Interface that connects to the DHCP client host


Related Commands

ip dhcp snooping information option
ip dhcp snooping limit rate
ip dhcp snooping trust
ip igmp snooping
ip igmp snooping vlan

show ip dhcp snooping database

To display the status of DHCP snooping database agent, use the show ip dhcp snooping database command.

show ip dhcp snooping database [detail]

Syntax Description

detail

(Optional) Provides additional operating state and statistics information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Added support of state and statistics information.


Examples

This example shows how to display the DHCP snooping database:

Switch# show ip dhcp snooping database
Agent URL : 
Write delay Timer : 300 seconds
Abort Timer : 300 seconds

Agent Running : No
Delay Timer Expiry : Not Running
Abort Timer Expiry : Not Running

Last Succeded Time : None
Last Failed Time : None
Last Failed Reason : No failure recorded.

Total Attempts       :        0   Startup Failures :        0
Successful Transfers :        0   Failed Transfers :        0
Successful Reads     :        0   Failed Reads     :        0
Successful Writes    :        0   Failed Writes    :        0
Media Failures       :        0

Switch#

This example shows how to view additional operating statistics:

Switch# show ip dhcp snooping database detail 
Agent URL : tftp://10.1.1.1/directory/file
Write delay Timer : 300 seconds
Abort Timer : 300 seconds

Agent Running : No
Delay Timer Expiry : 7 (00:00:07)
Abort Timer Expiry : Not Running

Last Succeded Time : None
Last Failed Time : 17:14:25 UTC Sat Jul 7 2001
Last Failed Reason : Unable to access URL.

Total Attempts       :       21   Startup Failures :        0
Successful Transfers :        0   Failed Transfers :       21
Successful Reads     :        0   Failed Reads     :        0
Successful Writes    :        0   Failed Writes    :       21
Media Failures       :        0

First successful access: Read

Last ignored bindings counters :
Binding Collisions    :        0   Expired leases    :        0
Invalid interfaces    :        0   Unsupported vlans :        0
Parse failures        :        0
Last Ignored Time : None

Total ignored bindings counters:
Binding Collisions    :        0   Expired leases    :        0
Invalid interfaces    :        0   Unsupported vlans :        0
Parse failures        :        0

Switch#

Related Commands

ip dhcp snooping
ip dhcp snooping database
ip dhcp snooping information option
ip dhcp snooping limit rate
ip dhcp snooping trust
ip dhcp snooping vlan

show ip igmp interface

To view IP IGMP interface status and configuration information, use the show ip igmp interface command.

show ip igmp interface [FastEthernet slot/port | GigabitEthernet slot/port |
null interface-number | vlan vlan_id]

Syntax Description

FastEthernet
slot/port

(Optional) Specifies the Fast Ethernet interface and the number of the slot and port.

GigabitEthernet
slot/port

(Optional) Specifies the Gigabit Ethernet interface and the number of the slot and port; valid values are from 1 to 9.

null interface-number

(Optional) Specifies the null interface and the number of the interface; the only valid value is 0.

vlan vlan_id

(Optional) Specifies the VLAN and the number of the VLAN; valid values are from 1 to 4094.


Defaults

If you do not specify a VLAN, information for VLAN 1 is shown.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Usage Guidelines

If you omit the optional arguments, the show ip igmp interface command displays information about all interfaces.

Examples

This example shows how to view IGMP information for VLAN 200:

Switch# show ip igmp interface vlan 200
IGMP snooping is globally enabled
IGMP snooping is enabled on this Vlan
IGMP snooping immediate-leave is disabled on this Vlan
IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan
IGMP snooping is running in IGMP-ONLY mode on this VLAN
Switch# 

Related Commands

clear ip igmp group
show ip igmp snooping mrouter

show ip igmp profile

To view all configured IGMP profiles or a specified IGMP profile, use the show ip igmp profile privileged EXEC command.

show ip igmp profile [profile number]

Syntax Description

profile number

(Optional) IGMP profile number to be displayed; valid ranges are from 1 to 4294967295.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(11b)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If no profile number is entered, all IGMP profiles are displayed.

Examples

This example shows how to display IGMP profile 40:

Switch# show ip igmp profile 40
IGMP Profile 40
    permit
    range 233.1.1.1 233.255.255.255
Switch#

This example shows how to display all IGMP profiles:

Switch# show ip igmp profile
IGMP Profile 3
    range 230.9.9.0 230.9.9.0
IGMP Profile 4
    permit
    range 229.9.9.0 229.255.255.255
Switch# 

Related Commands

ip igmp profile

show ip igmp snooping

To display information on dynamically learned and manually configured VLAN switch interfaces, use the show ip igmp snooping command.

show ip igmp snooping [querier | groups | mrouter] [vlan vlan_id] a.b.c.d [summary | sources | hosts] [count]

Syntax Description

querier

(Optional) Specifies that the display will contain IP address and version information.

groups

(Optional) Specifies that the display will list VLAN members sorted by group IP address.

mrouter

(Optional) Specifies that the display will contain information on dynamically learned and manually configured multicast switch interfaces.

vlan vlan_id

(Optional) Specifies a VLAN; valid values are from 1 to 1001 and from 1006 to 4094.

a.b.c.d

Specifies a group or Multicast IP address.

summary

(Optional) Specifies a display of detailed information for a v2 or v3 group.

sources

(Optional) Specifies a list of the source IPs for the specified group.

hosts

(Optional) Specifies a list of the host IPs for the specified group.

count

(Optional) Specifies a display of the total number of group addresses learned by the system on a global or per-VLAN basis.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Support for extended addressing was added.

12.1(20)EW

Added support to display configuration state for IGMPv3 explicit host tracking.


Usage Guidelines

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

You can display IGMP snooping information for VLAN interfaces by entering the show ip igmp snooping command.

Examples

This example shows how to display the global snooping information on the switch:

Switch# show ip igmp snooping
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping             : Enabled
IGMPv3 snooping           : Enabled
Report suppression        : Enabled
TCN solicit query         : Disabled
TCN flood query count     : 2

Vlan 1:
--------
IGMP snooping                  : Enabled
IGMPv2 immediate leave         : Disabled
Explicit host tracking         : Enabled
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode     : IGMP_ONLY

Vlan 2:
--------
IGMP snooping                  : Enabled
IGMPv2 immediate leave         : Disabled
Explicit host tracking         : Enabled
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode     : IGMP_ONLY
Switch>

This example shows how to display the snooping information on VLAN 2:

Switch# show ip igmp snooping vlan 2
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping             : Enabled
IGMPv3 snooping           : Enabled
Report suppression        : Enabled
TCN solicit query         : Disabled
TCN flood query count     : 2

Vlan 2:
--------
IGMP snooping                  : Enabled
IGMPv2 immediate leave         : Disabled
Explicit host tracking         : Enabled
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode     : IGMP_ONLY
Switch>

This example shows how to display IGMP querier information for all VLANs on a switch:

Switch# show ip igmp snooping querier
Vlan      IP Address     IGMP Version        Port
---------------------------------------------------
2         10.10.10.1     v2                  Router
3         172.20.50.22   v3                  Fa3/15
Switch>

This example shows how to display IGMP querier information for VLAN 5 when running IGMPv2:

Switch# show ip igmp snooping querier vlan 5
IP address               :5.5.5.10
IGMP version             :v2
Port                     :Fa3/1
Max response time        :10s
Switch>

This example shows how to display IGMP querier information for VLAN 5 when running IGMPv3:

Switch# show ip igmp snooping querier vlan 5
IP address               :5.5.5.10
IGMP version             :v3
Port                     :Fa3/1
Max response time        :10s
Query interval           :60s
Robustness variable      :2
Switch>

This example shows how to display snooping information for a specific group:

Switch# show ip igmp snooping group

Vlan      Group          Version     Ports
---------------------------------------------------------
2         224.0.1.40     v3          Router
2         224.2.2.2      v3          Fa6/2
Switch>

This example shows how to display the group's host types and ports in VLAN 1:

Switch# show ip igmp snooping group vlan 1
Vlan      Group          Host Type     Ports
---------------------------------------------------------
1         229.2.3.4     v3          fa2/1 fa2/3
1         224.2.2.2      v3          Fa6/2
Switch>

This example shows how to display the group's host types and ports in VLAN 1:

Switch# show ip igmp snooping group vlan 10 226.6.6.7
Vlan      Group          Version     Ports
---------------------------------------------------------
10        226.6.6.7      v3          Fa7/13, Fa7/14
Switch>

This example shows how to display the current state of a group with respect to a source IP address:

Switch# show ip igmp snooping group vlan 10 226.6.6.7 sources
Source information for group 226.6.6.7:
Timers: Expired sources are deleted on next IGMP General Query

SourceIP       Expires   Uptime    Inc Hosts Exc Hosts
-------------------------------------------------------
2.0.0.1        00:03:04  00:03:48  2         0
2.0.0.2        00:03:04  00:02:07  2         0
Switch>

This example shows how to display the current state of a group with respect to a host MAC address:

Switch# show ip igmp snooping group vlan 10 226.6.6.7 hosts
IGMPv3 host information for group 226.6.6.7
Timers: Expired hosts are deleted on next IGMP General Query

Host (MAC/IP)  Filter mode    Expires   Uptime    # Sources
-------------------------------------------------------------
175.1.0.29     INCLUDE        stopped   00:00:51       2
175.2.0.30     INCLUDE        stopped   00:04:14       2
Switch>

This example shows how to display summary information for a v3 group:

Switch# show ip igmp snooping group vlan 10 226.6.6.7 summary
Group Address (Vlan 10)        : 226.6.6.7
Host type                      : v3
Member Ports                   : Fa7/13, Fa7/14
Filter mode                    : INCLUDE
Expires                        : stopped
Sources                        : 2
Reporters (Include/Exclude)    : 2/0
Switch>

This example shows how to display multicast router information for VLAN 1:

Switch# show ip igmp snooping mrouter vlan 1
vlan            ports
-----+----------------------------------------
  1          Gi1/1,Gi2/1,Fa3/48,Router
Switch#

This example shows how to display the total number of group addresses learned by the system globally:

Switch# show ip igmp snooping group count
Total number of groups:   54
Switch>

This example shows how to display the total number of group addresses learned on VLAN 5:

Switch# show ip igmp snooping group vlan 5 count
Total number of groups:   30
Switch>

Related Commands

ip igmp snooping
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan mrouter
ip igmp snooping vlan static
show ip igmp interface
show ip igmp snooping mrouter
show mac-address-table multicast

show ip igmp snooping membership

To display host membership information, use the show ip igmp snooping membership command.

show ip igmp snooping membership [interface interface_num] [vlan vlan_id]
[
reporter a.b.c.d] [source a.b.c.d group a.b.c.d]

Syntax Description

interface interface_num

(Optional) Displays IP address and version information of an interface.

vlan vlan_id

(Optional) Displays VLAN members sorted by group IP address of a VLAN; valid values are from 1 to 1001 and from 1006 to 4094.

reporter a.b.c.d

(Optional) Displays membership information for a specified reporter.

source a.b.c.d

(Optional) Specifies a reporter, source, or group IP address.

group a.b.c.d

(Optional) Displays all members of a channel (source, group), sorted by interface or VLAN.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(20)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

This command is valid only if explicit host tracking is enabled on the switch.

Examples

This example shows how to display host membership for interface gi4/1:

Switch# show ip igmp snooping membership interface gi4/1
#channels: 5
#hosts : 1
Source/Group 	Interface 	Reporter 		Uptime 	Last-Join	 Last-Leave

40.40.40.2/224.10.10.10 	Gi4/1 	20.20.20		.20 00:23:	37 00:06:	50 00:20:30
40.40.40.4/224.10.10.10	Gi4/1 	20.20.20		.20 00:39:	42 00:09:17 	-
Switch#

This example shows how to display host membership for VLAN 20 and group 224.10.10.10:

Switch# show ip igmp snooping membership vlan 20 source 40.40.40.2 group 224.10.10.10
#channels: 5
#hosts : 1
Source/Group 	Interface 	Reporter 		Uptime 	Last-Join	 Last-Leave

40.40.40.2/224.10.10.10 	Gi4/1 	20.20.20		.20 00:23:	37 00:06:	50 00:20:30
Switch#

This example shows how to display host membership information for VLAN 20 and to delete the explicit host tracking:

Switch# show ip igmp snooping membership vlan 20
Snooping Membership Summary for Vlan 20
------------------------------------------					
Total number of channels:5
Total number of hosts   :4

Source/Group                    Interface   Reporter            Uptime   Last-Join/
                                                                                             Last-Leave
-------------------------------------------------------------------------------------------------------

40.0.0.1/224.1.1.1               Fa7/37    0002.4ba0.a4f6  00:00:04 00:00:04 /
                                                                       			                   -

40.0.0.2/224.1.1.1               Fa7/37    0002.fd80.f770   00:00:17 00:00:17 /
                                                                      								                    -

40.0.0.3/224.1.1.1               Fa7/36    20.20.20.20       00:00:04 00:00:04 /
                                                                      								                    -

40.0.0.4/224.1.1.1               Fa7/35    20.20.20.210     00:00:17 00:00:17 /
                                                                       								                   -

40.0.0.5/224.1.1.1               Fa7/37    0002.fd80.f770   00:00:17 00:00:17 /
                                                                       								                       -
Switch# clear ip igmp snooping membership vlan 20
Switch#

Related Commands

clear ip igmp snooping membership
ip igmp snooping vlan explicit-tracking
show ip igmp snooping vlan

show ip igmp snooping mrouter

To display information on dynamically learned and manually configured multicast switch interfaces, use the show ip igmp snooping mrouter command.

show ip igmp snooping mrouter [{vlan vlan-id}]

Syntax Description

vlan vlan-id

(Optional) Specifies a VLAN; valid values are from 1 to 1001 and from 1006 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(19)EW

Added support for extended VLAN addresses.


Usage Guidelines

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

You can display IGMP snooping information for VLAN interfaces by entering the show ip igmp interface vlan vlan-num command.

Examples

This example shows how to display snooping information for a specific VLAN:

Switch# show ip igmp snooping mrouter vlan 1
vlan            ports
-----+----------------------------------------
  1          Gi1/1,Gi2/1,Fa3/48,Switch
Switch# 

Related Commands

ip igmp snooping vlan mrouter
show ip igmp interface
show mac-address-table multicast

show ip igmp snooping vlan

To display information on dynamically learned and manually configured VLAN switch interfaces, use the show ip igmp snooping vlan command.

show ip igmp snooping vlan vlan_num

Syntax Description

vlan_num

Number of the VLAN; valid values are from 1 to 1001 and from 1006 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for extended addressing was added.


Usage Guidelines

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

Examples

This example shows how to display snooping information for a specific VLAN:

Switch# show ip igmp snooping vlan 2
vlan 2
----------
IGMP snooping is globally enabled
IGMP snooping TCN solicit query is globally enabled
IGMP snooping global TCN flood query count is 2
IGMP snooping is enabled on this Vlan
IGMP snooping immediate-leave is disabled on this Vlan
IGMP snooping mrouter learn mode is pim-dvmrp on this Vlan
IGMP snooping is running in IGMP_ONLY mode on this Vlan
Switch# 

Related Commands

ip igmp snooping
ip igmp snooping vlan immediate-leave
ip igmp snooping vlan mrouter
ip igmp snooping vlan static
show ip igmp interface
show ip igmp snooping mrouter
show mac-address-table multicast

show ip mfib

To display all active Multicast Forwarding Information Base (MFIB) routes, use the show ip mfib command.

show ip mfib [all | counters | log [n]]

Syntax Description

all

(Optional) Specifies all routes in the MFIB, including those routes that are used to accelerate fast switching but that are not necessarily in the upper-layer routing protocol table.

counters

(Optional) Specifies the counts of MFIB-related events. Only non-zero counters are shown.

log

(Optional) Specifies a log of the most recent number of MFIB-related events. The most recent event is first.

n

(Optional) Specifies the number of events.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The MFIB table contains a set of IP multicast routes; each route in the MFIB table contains several flags that associate to the route.

The route flags indicate how a packet that matches a route is forwarded. For example, the IC flag on an MFIB route indicates that some process on the switch needs to receive a copy of the packet. The following flags are associated with MFIB routes:

Internal Copy (IC) flag—Set on a route when a process on the switch needs to receive a copy of all packets matching the specified route.

Signaling (S) flag—Set on a route when a switch process needs notification that a packet matching the route is received. In the expected behavior, the protocol code updates the MFIB state in response to having received a packet on a signaling interface.

Connected (C) flag—When set on a route, the C flag has the same meaning as the S flag, except that the C flag indicates that only packets sent by directly connected hosts to the route should be signaled to a protocol process.

A route can also have a set of flags associated with one or more interfaces. For an (S,G) route, the flags on interface 1 indicate how ingress packets should be treated and whether packets matching the route should be forwarded onto interface 1. The following per-interface flags are associated with MFIB routes:

Accepting (A)—Set on the RPF interface when a packet that arrives on the interface and that is marked as Accepting (A) is forwarded to all Forwarding (F) interfaces.

Forwarding (F)—Used in conjunction with the A flag as described above. The set of forwarding interfaces together form a multicast olist or output interface list.

Signaling (S)—Set on an interface when a multicast routing protocol process in Cisco IOS needs to be notified of ingress packets on that interface.

Not Platform (NP) fast-switched—Used in conjunction with the F flag. A forwarding interface is also marked as Not Platform fast-switched whenever that output interface cannot be fast-switched by the platform hardware and requires software forwarding.

For example, the Catalyst 4006 switch with Supervisor Engine III cannot switch tunnel interfaces in hardware so these interfaces are marked with the NP flag. When an NP interface is associated with a route, a copy of every ingress packet arriving on an Accepting interface is sent to the switch software forwarding path for software replication and then forwarded to the NP interface.

Examples

This example shows how to display all active MFIB routes:

Switch# show ip mfib
IP Multicast Forwarding Information Base
Entry Flags: C - Directly Connected, S - Signal,
             IC - Internal Copy
Interface Flags: A - Accept, F - Forward, NS - Signal,
             NP - Not platform switched
Packets: Fast/Partial/Slow Bytes: Fast/Partial/Slow:
(171.69.10.13, 224.0.1.40), flags (IC)
   Packets: 2292/2292/0, Bytes: 518803/0/518803
   Vlan7 (A)
   Vlan100 (F NS)
   Vlan105 (F NS)
(*, 224.0.1.60), flags ()
   Packets: 2292/0/0, Bytes: 518803/0/0
   Vlan7 (A NS)
(*, 224.0.1.75), flags ()
   Vlan7 (A NS)
(10.34.2.92, 239.192.128.80), flags ()
   Packets: 24579/100/0, 2113788/15000/0 bytes
   Vlan7 (F NS)
   Vlan100 (A)
(*, 239.193.100.70), flags ()
   Packets: 1/0/0, 1500/0/0 bytes
   Vlan7 (A) 
Switch# 

Related Commands

clear ip mfib counters

show ip mfib fastdrop

To show all currently active fast drop entries and to show whether fast drop is enabled, use the show ip mfib fastdrop command.

show ip mfib fastdrop

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display all currently active fast drop entries and whether fast drop is enabled.

Switch# show ip mfib fasttdrop 
MFIB fastdrop is enabled.
MFIB fast-dropped flows:
(10.0.0.1, 224.1.2.3, Vlan9 ) 00:01:32
(10.1.0.2, 224.1.2.3, Vlan9 ) 00:02:30
(1.2.3.4, 225.6.7.8, Vlan3) 00:01:50
Switch# 

Related Commands

clear ip mfib fastdrop

show ip mroute

To display IP multicast routing table information, use the show ip mroute command.

show ip mroute [interface_type slot/port | host_name | host_address [source] | active [kbps | interface_type num] | count | pruned | static | summary]

Syntax Description

interface_type
slot/port

(Optional) Interface type and number of the slot and port; valid values for interface type are FastEthernet, GigabitEthernet, null, and vlan.

host_name

(Optional) Name or IP address as defined in the DNS hosts table.

host_address
source

(Optional) IP address or name of a multicast source.

active

(Optional) Displays the rate that active sources are sending to multicast groups.

kbps
interface_type num

(Optional) Minimum rate at which active sources are sending to multicast groups; active sources sending at this rate or greater will be displayed. Valid values are from 1 to 4294967295 kbps.

count

(Optional) Displays route and packet count information.

pruned

(Optional) Displays pruned routes.

static

(Optional) Displays static multicast routes.

summary

(Optional) Displays a one-line, abbreviated summary of each entry in the IP multicast routing table.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If you omit all optional arguments and keywords, the show ip mroute command displays all entries in the IP multicast routing table.

The show ip mroute active kbps command displays all sources sending at a rate greater than or equal to kbps.

The multicast routing table is populated by creating source, group (S,G) entries from star, group (*,G) entries. The star refers to all source addresses, the "S" refers to a single source address, and the "G" is the destination multicast group address. In creating (S,G) entries, the software uses the best path to that destination group found in the unicast routing table (that is, through Reverse Path Forwarding (RPF).

Examples

This example shows how to display all entries in the IP multicast routing table:

Switch# show ip mroute

IP Multicast Routing Table
Flags:D - Dense, S - Sparse, s - SSM Group, C - Connected, L - Local,
       P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set,
       J - Join SPT, M - MSDP created entry, X - Proxy Join Timer Running
       A - Advertised via MSDP, U - URD, I - Received Source Specific Host
           Report 
Outgoing interface flags:H - Hardware switched
Timers:Uptime/Expires
Interface state:Interface, Next-Hop or VCD, State/Mode
 
(*, 230.13.13.1), 00:16:41/00:00:00, RP 10.15.1.20, flags:SJC
  Incoming interface:GigabitEthernet4/8, RPF nbr 10.15.1.20
  Outgoing interface list:
  
 GigabitEthernet4/9, Forward/Sparse-Dense, 00:16:41/00:00:00, H
 
(*, 230.13.13.2), 00:16:41/00:00:00, RP 10.15.1.20, flags:SJC
  
 Incoming interface:GigabitEthernet4/8, RPF nbr 10.15.1.20, RPF-MFD
  Outgoing interface list:
    GigabitEthernet4/9, Forward/Sparse-Dense, 00:16:41/00:00:00, H
 
(10.20.1.15, 230.13.13.1), 00:14:31/00:01:40, flags:CJT
  
 Incoming interface:GigabitEthernet4/8, RPF nbr 10.15.1.20, RPF-MFD
  Outgoing interface list:
    GigabitEthernet4/9, Forward/Sparse-Dense, 00:14:31/00:00:00, H
(132.206.72.28, 224.2.136.89), 00:14:31/00:01:40, flags:CJT
  Incoming interface:GigabitEthernet4/8, RPF nbr 10.15.1.20, RPF-MFD
  
 Outgoing interface list:Null
Switch# 

This example shows how to display the rate that active sources are sending to multicast groups and to display only active sources sending at greater than the default rate:

Switch# show ip mroute active

Active IP Multicast Sources - sending > = 4 kbps

Group: 224.2.127.254, (sdr.cisco.com)
   Source: 146.137.28.69 (mbone.ipd.anl.gov)
     Rate: 1 pps/4 kbps(1sec), 4 kbps(last 1 secs), 4 kbps(life avg)

Group: 224.2.201.241, ACM 97
   Source: 130.129.52.160 (webcast3-e1.acm97.interop.net)
     Rate: 9 pps/93 kbps(1sec), 145 kbps(last 20 secs), 85 kbps(life avg)

Group: 224.2.207.215, ACM 97
   Source: 130.129.52.160 (webcast3-e1.acm97.interop.net)
     Rate: 3 pps/31 kbps(1sec), 63 kbps(last 19 secs), 65 kbps(life avg)
Switch# 

This example shows how to display route and packet count information:

Switch# show ip mroute count
IP Multicast Statistics
56 routes using 28552 bytes of memory
13 groups, 3.30 average sources per group
Forwarding Counts:Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
  
Other counts:Total/RPF failed/Other drops(OIF-null, rate-limit etc)
 
Group:224.2.136.89, Source count:1, Group pkt count:29051
  Source:132.206.72.28/32, Forwarding:29051/-278/1186/0, Other:85724/8/56665
Switch# 

This example shows how to display summary information:

Switch# show ip mroute summary
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, s - SSM Group, C - Connected, L - Local,
       P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set,
       J - Join SPT, M - MSDP created entry, X - Proxy Join Timer Running
       A - Advertised via MSDP, U - URD, I - Received Source Specific Host
           Report
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode

Switch# 

Table 2-16 describes the fields shown in the output.

Table 2-16 show ip mroute Field Descriptions 

Field
Description

Flags:

Information about the entry.

D - Dense

Entry is operating in dense mode.

S - Sparse

Entry is operating in sparse mode.

s - SSM Group

Entry is a member of an SSM group.

C - Connected

Member of the multicast group is present on the directly connected interface.

L - Local

Switch itself is a member of the multicast group.

P - Pruned

Route has been pruned. This information is retained in case a downstream member wants to join the source.

R - Rp-bit set

Status of the (S,G) entry; is the (S,G) entry pointing toward the RP. The R - Rp-bit set is typically a prune state along the shared tree for a particular source.

F - Register flag

Status of the software; is the software registered for a multicast source.

T - SPT-bit set

Status of the packets; have the packets been received on the shortest path source tree.

J - Join SPT

For (*, G) entries, indicates that the rate of traffic flowing down the shared tree is exceeding the SPT-Threshold set for the group. (The default SPT-Threshold setting is 0 kbps.) When the J - Join SPT flag is set, the next (S,G) packet received down the shared tree triggers an (S,G) join in the direction of the source causing the switch to join the source tree.

For (S, G) entries, indicates that the entry was created because the SPT-Threshold for the group was exceeded. When the J - Join SPT flag is set for (S,G) entries, the switch monitors the traffic rate on the source tree and attempts to switch back to the shared tree for this source if the traffic rate on the source tree falls below the group's SPT-Threshold for more than one minute.

The switch measures the traffic rate on the shared tree and compares the measured rate to the group's SPT-Threshold once every second. If the traffic rate exceeds the SPT-Threshold, the J- Join SPT flag is set on the (*, G) entry until the next measurement of the traffic rate. The flag is cleared when the next packet arrives on the shared tree and a new measurement interval is started.

If the default SPT-Threshold value of 0 Kbps is used for the group, the J- Join SPT flag is always set on (*, G) entries and is never cleared. When the default SPT-Threshold value is used, the switch immediately switches to the shortest-path tree when traffic from a new source is received.

Outgoing interface flag:

Information about the outgoing entry.

H - Hardware switched

Entry is hardware switched.

Timer:

Uptime/Expires.

Interface state:

Interface, Next-Hop or VCD, State/Mode.

(*, 224.0.255.1)
(198.92.37.100/32, 224.0.255.1)

Entry in the IP multicast routing table. The entry consists of the IP address of the source switch followed by the IP address of the multicast group. An asterisk (*) in place of the source switch indicates all sources.

Entries in the first format are referred to as (*,G) or "star comma G" entries. Entries in the second format are referred to as (S,G) or "S comma G" entries. (*,G) entries are used to build (S,G) entries.

uptime

How long (in hours, minutes, and seconds) the entry has been in the IP multicast routing table.

expires

How long (in hours, minutes, and seconds) until the entry is removed from the IP multicast routing table on the outgoing interface.

RP

Address of the RP switch. For switches and access servers operating in sparse mode, this address is always 0.0.0.0.

flags:

Information about the entry.

Incoming interface

Expected interface for a multicast packet from the source. If the packet is not received on this interface, it is discarded.

RPF neighbor

IP address of the upstream switch to the source. "Tunneling" indicates that this switch is sending data to the RP encapsulated in Register packets. The hexadecimal number in parentheses indicates to which RP it is registering. Each bit indicates a different RP if multiple RPs per group are used.

DVMRP or Mroute

Status of whether the RPF information is obtained from the DVMRP routing table or the static mroutes configuration.

Outgoing interface list

Interfaces through which packets are forwarded. When the ip pim nbma-mode command is enabled on the interface, the IP address of the PIM neighbor is also displayed.

Ethernet0

Name and number of the outgoing interface.

Next hop or VCD

Next hop specifies downstream neighbor's IP address. VCD specifies the virtual circuit descriptor number. VCD0 means the group is using the static-map virtual circuit.

Forward/Dense

Status of the packets; are they forwarded on the interface if there are no restrictions due to access lists or the TTL threshold. Following the slash (/), mode in which the interface is operating (dense or sparse).

Forward/Sparse

Sparse mode interface is in forward mode.

time/time
(uptime/expiration time)

Per interface, how long (in hours, minutes, and seconds) the entry has been in the IP multicast routing table. Following the slash (/), how long (in hours, minutes, and seconds) until the entry is removed from the IP multicast routing table.


Related Commands

ip multicast-routing (refer to Cisco IOS documentation)
ip pim (refer to Cisco IOS documentation)

show ip source binding

To display IP source bindings configured on the system, use the show ip source binding EXEC command.

show ip source binding [ip-address] [mac-address] [dhcp-snooping | static] [vlan vlan-id] [interface interface-name]

Syntax Description

ip-address

(Optional) Binding IP address.

mac-address

(Optional) Binding MAC address.

dhcp-snooping

(Optional) DHCP-snooping type binding.

static

(Optional) Statically configured binding.

vlan vlan-id

(Optional) VLAN number.

interface interface-name

(Optional) Binding interface.


Defaults

Displays both static and DHCP snooping bindings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

This command was first introduced.


Usage Guidelines

The optional parameters filter the display output result.

Examples

This example shows how to display the IP source bindings:

Switch# show ip source binding
MacAddress          IpAddress        Lease(sec)  Type           VLAN  Interface 
------------------  ---------------  ----------  -------------  ----  -------------------- 
00:00:00:0A:00:0B   11.0.0.1         infinite    static         10    FastEthernet6/10 

Switch#

This example shows how to display the static IP binding entry of IP address 11.0.01:

Switch# show ip source binding 11.0.0.1 0000.000A.000B static vlan 10 interface Fa6/10
show ip source binding 11.0.0.1 0000.000A.000B static vlan 10 interface Fa6/10 
MacAddress          IpAddress        Lease(sec)  Type           VLAN  Interface 
------------------  ---------------  ----------  -------------  ----  -------------------- 
00:00:00:0A:00:0B   11.0.0.1         infinite    static         10    FastEthernet6/10 
Switch# 

Related Commands

ip source binding

show ip verify source

To display IP source guard configuration and filters on a particular interface, use the show ip verify source command.

show ip verify source [interface interface_num]

Syntax Description

interface interface_num

(Optional) Specifies an interface.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

These examples show how to display IP source guard configuration and filters on a particular interface with the show ip verify source interface command:

The following output appears when DHCP snooping is enabled on VLAN 10-20, interface fa6/1 has IP source filter mode configured as IP, and an existing IP address binding 10.0.0.1 is on VLAN 10:

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/1      ip           active       10.0.0.1                         10
fa6/1      ip           active       deny-all                         11-20


Note The second entry shows that a default PVACL (deny all IP traffic) is installed on the port for those snooping-enabled VLANs that do not have a valid IP source binding.


The following output appears when you enter the show ip verify source interface fa6/2 command and DHCP snooping is enabled on VLAN 10-20, interface fa6/1 has IP source filter mode configured as IP, and there is an existing IP address binding 10.0.0.1 on VLAN 10:

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/2      ip           inactive-trust-port

The following output appears when you enter the show ip verify source interface fa6/3 command and the interface fa6/3 does not have a VLAN enabled for DHCP snooping:

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/3      ip           inactive-no-snooping-vlan

The following output appears when you enter the show ip verify source interface fa6/4 command and the interface fa6/4 has IP source filter mode configured as IP MAC, and existing IP MAC that binds 10.0.0.2/aaaa.bbbb.cccc on VLAN 10 and 11.0.0.1/aaaa.bbbb.cccd on VLAN 11 :

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/4      ip-mac       active       10.0.0.2         aaaa.bbbb.cccc  10
fa6/4      ip-mac       active       11.0.0.1         aaaa.bbbb.cccd  11
fa6/4      ip-mac       active       deny-all         deny-all        12-20

The following output appears when you enter the show ip verify source interface fa6/5 command and the interface fa6/5 has IP source filter mode configured as IP MAC, and existing IP MAC binding 10.0.0.3/aaaa.bbbb.ccce on vlan 10, but port security is not enabled on fa6/5:

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/5      ip-mac       active       10.0.0.3         permit-all      10
fa6/5      ip-mac       active       deny-all         permit-all      11-20


Note Enable port security first because the DHCP security MAC filter cannot apply to the port or VLAN.


The following output appears when you enter the show ip verify source interface fa6/6 command and the interface fa6/6 does not have IP source filter mode configured:

DHCP security is not configured on the interface fa6/6.

This example shows how to display all interfaces on the switch that have DHCP snooping security enabled with the show ip verify source command.

The output is an accumulation of per-interface show CLIs:

Interface  Filter-type  Filter-mode  IP-address       Mac-address     Vlan
---------  -----------  -----------  ---------------  --------------  ---------
fa6/1      ip           active       10.0.0.1                         10
fa6/1      ip           active       deny-all                         11-20
fa6/2      ip           inactive-trust-port
fa6/3      ip           inactive-no-snooping-vlan
fa6/4      ip-mac       active       10.0.0.2         aaaa.bbbb.cccc  10
fa6/4      ip-mac       active       11.0.0.1         aaaa.bbbb.cccd  11
fa6/4      ip-mac       active       deny-all         deny-all        12-20
fa6/5      ip-mac       active       10.0.0.3         permit-all      10
fa6/5      ip-mac       active       deny-all         permit-all      11-20

Related Commands

ip dhcp snooping information option
ip dhcp snooping limit rate
ip dhcp snooping trust
ip igmp snooping
ip igmp snooping vlan
ip source binding
ip verify source vlan dhcp-snooping
show ip source binding

show ipc

To display IPC information, use the show ipc command.

show ipc {nodes | ports | queue | status}

Syntax Description

nodes

Displays participating nodes.

ports

Displays local IPC ports.

queue

Displays the contents of the IPC retransmission queue.

status

Displays the status of the local IPC server.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display participating nodes:

Switch# show ipc nodes
There are 3 nodes in this IPC realm.
   ID     Type                 Name                       Last  Last
                                                          Sent  Heard
   10000 Local      IPC Master                               0      0     
 2010000 Local      GALIOS IPC:Card 1                        0      0     
 2020000 Ethernet   GALIOS IPC:Card 2                        12     26 
Switch#  

This example shows how to display local IPC ports:

Switch# show ipc ports
There are 11 ports defined.

Port ID        Type       Name                 (current/peak/total)
   10000.1     unicast    IPC Master:Zone                      
   10000.2     unicast    IPC Master:Echo                      
   10000.3     unicast    IPC Master:Control                   
   10000.4     unicast    Remote TTY Server Port               
   10000.5     unicast    GALIOS RF :Active                    
     index = 0  seat_id = 0x2020000  last sent = 0     heard = 1635   0/1/1635

   10000.6     unicast    GALIOS RED:Active                    
     index = 0  seat_id = 0x2020000  last sent = 0     heard = 2      0/1/2

 2020000.3     unicast    GALIOS IPC:Card 2:Control            
 2020000.4     unicast    GALIOS RFS :Standby                  
 2020000.5     unicast    Slave: Remote TTY Client Port        
 2020000.6     unicast    GALIOS RF :Standby                   
 2020000.7     unicast    GALIOS RED:Standby                   

RPC packets: current/peak/total
                                                            0/1/17
Switch# 

This example shows how to display the contents of the IPC retransmission queue:

Switch# show ipc queue
There are 0 IPC messages waiting for acknowledgement in the transmit queue.
There are 0 IPC messages waiting for a response.
There are 0 IPC messages waiting for additional fragments.
There are 0 IPC messages currently on the IPC inboundQ.
There are 0 messages currently in use by the system.
Switch# 

This example shows how to display the status of the local IPC server:

Switch# show ipc status
IPC System Status:

This processor is the IPC master server.

6000 IPC message headers in cache
3363 messages in, 1680 out, 1660 delivered to local port,
1686 acknowledgements received, 1675 sent,
0 NACKS received, 0 sent,
0 messages dropped on input, 0 messages dropped on output
0 no local port, 0 destination unknown, 0 no transport
0 missing callback or queue, 0 duplicate ACKs, 0 retries,
0 message timeouts.
0 ipc_output failures, 0 mtu failures,
0 msg alloc failed, 0 emer msg alloc failed, 0 no origs for RPC replies
0 pak alloc failed, 0 memd alloc failed
0 no hwq, 1 failed opens, 0 hardware errors
No regular dropping of IPC output packets for test purposes
Switch# 

show l2protocol-tunnel

To display information about Layer 2 protocol tunnel ports, use the show l2protocol-tunnel command. This command displays information for interfaces with protocol tunneling enabled.

show l2protocol-tunnel [interface interface-id] [[summary] | {begin | exclude | include} expression]

Syntax Description

interface interface-id

(Optional) Specifies the interface for which protocol tunneling information appears. Valid interfaces are physical ports and port channels; the port channel range is 1 to 64.

summary

(Optional) Displays only Layer 2 protocol summary information.

begin

(Optional) Displays information beginning with the line that matches the expression.

exclude

(Optional) Displays information that excludes lines that match the expression.

include

(Optional) Displays lines that match the specified expression.

expression

(Optional) Expression in the output to use as a reference point.


Command Modes

User EXEC

Command History

Release
Modification

12.2(18)EW

This command was first introduced on the Catalyst 4500 series switch.


Usage Guidelines

After enabling Layer 2 protocol tunneling on an access or 802.1Q tunnel port with the l2protocol-tunnel command, you can configure some or all of these parameters:

Protocol type to be tunneled

Shutdown threshold

Drop threshold

If you enter the show l2protocol-tunnel [interface interface-id] command, only information about the active ports on which all the parameters are configured appears.

If you enter the show l2protocol-tunnel summary command, only information about the active ports on which some or all of the parameters are configured appears.

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

Examples

This is an example of output from the show l2protocol-tunnel command:

Switch> show l2protocol-tunnel
COS for Encapsulated Packets: 5

Port    Protocol Shutdown  Drop      Encapsulation Decapsulation Drop
                 Threshold Threshold Counter       Counter       Counter
------- -------- --------- --------- ------------- ------------- -------------
Fa0/10  ---           ----      ----          ----          ----          ----
        stp           ----      ---- 9847          1866          0
        vtp           ----      ---- 77            12            0
        pagp          ----      ---- 859           860           0
        lacp          ----      ---- 0             0             0
        udld          ----      ---- 219           211           0
Fa0/11  cdp           1100      ---- 2356          2350          0
        stp           1100      ---- 116           13            0
        vtp           1100      ---- 3             67            0
        pagp          ----       900 856           5848          0
        lacp          ----       900 0             0             0
        udld          ----       900 0             0             0
Fa0/12  cdp           ----      ---- 2356          0             0
        stp           ----      ---- 11787         0             0
        vtp           ----      ---- 81            0             0
        pagp          ----      ---- 0             0             0
        lacp          ----      ---- 849           0             0
        udld          ----      ---- 0             0             0
Fa0/13  cdp           ----      ---- 2356          0             0
        stp           ----      ---- 11788         0             0
        vtp           ----      ---- 81            0             0
        pagp          ----      ---- 0             0             0
        lacp          ----      ---- 849           0             0
        udld          ----      ---- 0             0             0

This is an example of output from the show l2protocol-tunnel summary command:

Switch> show l2protocol-tunnel summary
COS for Encapsulated Packets: 5

Port    Protocol    Shutdown         Drop            Status
                    Threshold        Threshold
                    (cdp/stp/vtp)    (cdp/stp/vtp)
                    (pagp/lacp/udld) (pagp/lacp/udld)
------- ----------- ---------------- ---------------- ----------
Fa0/10  --- stp vtp ----/----/----   ----/----/----   up
     pagp lacp udld ----/----/----   ----/----/----
Fa0/11  cdp stp vtp 1100/1100/1100   ----/----/----   up
     pagp lacp udld ----/----/----    900/ 900/ 900
Fa0/12  cdp stp vtp ----/----/----   ----/----/----   up
     pagp lacp udld ----/----/----   ----/----/----
Fa0/13  cdp stp vtp ----/----/----   ----/----/----   up
     pagp lacp udld ----/----/----   ----/----/----
Fa0/14  cdp stp vtp ----/----/----   ----/----/----   down
     pagp ---- udld ----/----/----   ----/----/----
Fa0/15  cdp stp vtp ----/----/----   ----/----/----   down
     pagp ---- udld ----/----/----   ----/----/----
Fa0/16  cdp stp vtp ----/----/----   ----/----/----   down
     pagp lacp udld ----/----/----   ----/----/----
Fa0/17  cdp stp vtp ----/----/----   ----/----/----   down
     pagp lacp udld ----/----/----   ----/----/----

Related Commands

clear I2protocol-tunnel counter (refer to Cisco IOS documentation) 
l2protocol-tunnel 
l2protocol-tunnel cos

show lacp

To display LACP information, use the show lacp command.

show lacp [channel-group] {counters | internal | neighbors | sys-id}

Syntax Description

channel-group

(Optional) Number of the channel group; valid values are from 1 to 64.

counters

Displays the LACP statistical information.

internal

Displays the internal information.

neighbors

Displays the neighbor information.

sys-id

Displays the LACP system identification.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switches.


Usage Guidelines

This command is not supported on systems configured with a Supervisor Engine 1.

If you do not specify a channel-group value, all channel groups are displayed.

You can enter the optional channel-group value to specify a channel group for all keywords, except the sys-id keyword.

Examples

This example shows how to display LACP statistical information for a specific channel group:

Switch# show lacp 1 counters
              LACPDUs         Marker       LACPDUs
Port       Sent   Recv     Sent   Recv     Pkts Err
---------------------------------------------------
Channel group: 1
  Fa4/1    8      15       0      0         3    0
  Fa4/2    14     18       0      0         3    0
  Fa4/3    14     18       0      0         0
  Fa4/4    13     18       0      0         0
Switch# 

The output displays the following information:

The LACPDUs Sent and Recv columns display the LACPDUs sent and received on each specific interface.

The LACPDUs Pkts and Err columns display the marker protocol packets.

This example shows how to display internal information for the interfaces belonging to a specific channel:

Switch# show lacp 1 internal
Flags:  S - Device sends PDUs at slow rate. F - Device sends PDUs at fast rate.
        A - Device is in Active mode.       P - Device is in Passive mode. 

Channel group 1
                            LACPDUs     LACP Port    Admin   Oper    Port     Port
Port      Flags    State    Interval    Priority     Key     Key     Number   State
Fa4/1     saC      bndl     30s         32768        100     100     0xc1     0x75
Fa4/2     saC      bndl     30s         32768        100     100     0xc2     0x75
Fa4/3     saC      bndl     30s         32768        100     100     0xc3     0x75
Fa4/4     saC      bndl     30s         32768        100     100     0xc4     0x75
Switch# 

Table 2-17 lists the output field definitions.

Table 2-17 show lacp internal Command Output Fields 

Field
Description

State

State of the specific port at the current moment is displayed; allowed values are as follows:

bndl—Port is attached to an aggregator and bundled with other ports.

susp—Port is in a suspended state; it is not attached to any aggregator.

indep—Port is in an independent state (not bundled but able to switch data traffic. In this case, LACP is not running on the partner port).

hot-sby—Port is in a Hot-standby state.

down—Port is down.

LACPDUs Interval

Interval setting.

LACP Port Priority

Port priority setting.

Admin Key

Administrative key.

Oper Key

Operator key.

Port Number

Port number.

Port State

State variables for the port encoded as individual bits within a single octet with the following meaning [1]:

bit0: LACP_Activity

bit1: LACP_Timeout

bit2: Aggregation

bit3: Synchronization

bit4: Collecting

bit5: Distributing

bit6: Defaulted

bit7: Expired


This example shows how to display LACP neighbors information for a specific port channel:

Switch# show lacp 1 neighbor
Flags:  S - Device sends PDUs at slow rate. F - Device sends PDUs at fast rate.
        A - Device is in Active mode.       P - Device is in Passive mode.

Channel group 1 neighbors
          Partner                 Partner 
Port      System ID               Port Number     Age     Flags
Fa4/1     8000,00b0.c23e.d84e     0x81            29s     P
Fa4/2     8000,00b0.c23e.d84e     0x82            0s      P
Fa4/3     8000,00b0.c23e.d84e     0x83            0s      P 
Fa4/4     8000,00b0.c23e.d84e     0x84            0s      P

          Port          Admin     Oper      Port
          Priority      Key       Key       State
Fa4/1     32768         200       200       0x81
Fa4/2     32768         200       200       0x81
Fa4/3     32768         200       200       0x81
Fa4/4     32768         200       200       0x81
Switch# 

In the case where no PDUs have been received, the default administrative information is displayed in braces.

This example shows how to display the LACP system identification:

Switch> show lacp sys-id
8000,AC-12-34-56-78-90
Switch> 

The system identification is made up of the system priority and the system MAC address. The first two bytes are the system priority, and the last six bytes are the globally administered individual MAC address associated to the system.

Related Commands

lacp port-priority
lacp system-priority

show mac access-group interface

To display the ACL configuration on a Layer 2 interface, use the show mac access-group interface command.

show mac access-group interface [interface interface-number]

Syntax Description

interface

(Optional) Specifies the interface type. Valid values are ethernet, fastethernet, gigabitethernet, tengigabitethernet, pos, atm, port-channel, and ge-wan.

interface-number

(Optional) Specifies the port number.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

Valid values for the port number depend on the chassis used.

Examples

This example shows how to display the ACL configuration on interface fast 6/1:

Switch# show mac access-group interface fast 6/1
Interface FastEthernet6/1:
   Inbound access-list is simple-mac-acl   
   Outbound access-list is not set

Related Commands

access-group mode

show mac-address-table address

To display MAC address table information for a specific MAC address, use the show mac-address-table address command.

show mac-address-table address mac_addr [interface type slot/port | protocol protocol | vlan vlan_id]

Syntax Description

mac_addr

48-bit MAC address; the valid format is H.H.H.

interface type slot/port

(Optional) Displays information for a specific interface; valid values for type are FastEthernet and GigabitEthernet.

protocol protocol

(Optional) Specifies a protocol. See "Usage Guidelines" for more information.

vlan vlan_id

(Optional) Displays entries for the specific VLAN only; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

The keyword definitions for the protocol variable are as follows:

ip specifies IP protocol.

ipx specifies IPX protocols.

assigned specifies assigned protocol entries.

other specifies other protocol entries.

Examples

This example shows how to display MAC address table information for a specific MAC address:

Switch# show mac-address-table address 0030.94fc.0dff
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/1   0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/2   0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Switch# 

Related Commands

show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table aging-time

To display the MAC address aging time, use the show mac-address-table aging-time command.

show mac-address-table aging-time [vlan vlan_id]

Syntax Description

vlan vlan_id

(Optional) Specifies a VLAN; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for extended addressing was added.


Examples

This example shows how to display the currently configured aging time for all VLANs:

Switch# show mac-address-table aging-time 
Vlan    Aging Time
----    ----------
100     300
200     1000

Switch# 

This example shows how to display the currently configured aging time for a specific VLAN:

Switch# show mac-address-table aging-time vlan 100
Vlan    Aging Time
----    ----------
 100    300

Switch#                

Related Commands

show mac-address-table address
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table count

To display the number of entries currently in the MAC address table, use the show mac-address-table count command.

show mac-address-table count [vlan vlan_id]

Syntax Description

vlan vlan_id

(Optional) Specifies a VLAN; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Examples

This example shows how to display the entry count for a specific VLAN:

Switch# show mac-address-table count vlan 1
MAC Entries for Vlan 1:
Dynamic Unicast Address Count:                 0
Static Unicast Address (User-defined) Count:   0
Static Unicast Address (System-defined) Count: 1
Total Unicast MAC Addresses In Use:            1
Total Unicast MAC Addresses Available:         32768
Multicast MAC Address Count:                   1
Total Multicast MAC Addresses Available:       16384
Switch# 

Related Commands

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 protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table dynamic

To display dynamic MAC address table entries only, use the show mac-address-table dynamic command.

show mac-address-table dynamic [address mac_addr | interface type slot/port |
protocol protocol | vlan vlan_id]

Syntax Description

address mac_addr

(Optional) Specifies a 48-bit MAC address; the valid format is H.H.H.

interface type slot/port

(Optional) Specifies an interface to match; valid values for type are FastEthernet and GigabitEthernet.

protocol protocol

(Optional) Specifies a protocol. See "Usage Guidelines" for more information.

vlan vlan_id

(Optional) Displays entries for a specific VLAN; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Usage Guidelines

The keyword definitions for the protocol argument are as follows:

assigned specifies assigned protocol entries.

ip specifies IP protocol.

ipx specifies IPX protocols.

other specifies other protocol entries.

The show mac-address-table dynamic command output for an EtherChannel interface changes the port number designation (for example, 5/7) to a port group number (for example, Po80).

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

Examples

This example shows how to display all dynamic MAC address entries:

Switch# show mac-address-table dynamic
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0000.0000.0201   dynamic ip                     FastEthernet6/15
   1    0000.0000.0202   dynamic ip                     FastEthernet6/15
   1    0000.0000.0203   dynamic ip,assigned            FastEthernet6/15
   1    0000.0000.0204   dynamic ip,assigned            FastEthernet6/15
   1    0000.0000.0205   dynamic ip,assigned            FastEthernet6/15
   2    0000.0000.0101   dynamic ip                     FastEthernet6/16
   2    0000.0000.0102   dynamic ip                     FastEthernet6/16
   2    0000.0000.0103   dynamic ip,assigned            FastEthernet6/16
   2    0000.0000.0104   dynamic ip,assigned            FastEthernet6/16
   2    0000.0000.0105   dynamic ip,assigned            FastEthernet6/16
Switch# 

This example shows how to display dynamic MAC address entries with a specific protocol type (in this case, assigned):

Switch# show mac-address-table dynamic protocol assigned
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0000.0000.0203   dynamic ip,assigned            FastEthernet6/15
   1    0000.0000.0204   dynamic ip,assigned            FastEthernet6/15
   1    0000.0000.0205   dynamic ip,assigned            FastEthernet6/15
   2    0000.0000.0103   dynamic ip,assigned            FastEthernet6/16
   2    0000.0000.0104   dynamic ip,assigned            FastEthernet6/16
   2    0000.0000.0105   dynamic ip,assigned            FastEthernet6/16
Switch#                                                                 

Related Commands

show mac-address-table protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table interface

To display the MAC address table information for a specific interface, use the show mac-address-table interface command.

show mac-address-table interface type slot/port

Syntax Description

type

Interface type; valid values are Ethernet, FastEthernet, and GigabitEthernet.

slot/port

Number of the slot and port.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

Examples

This example shows how to display MAC address table information for a specific interface:

Switch# show mac-address-table interface fa6/16
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   2    0000.0000.0101   dynamic other                  FastEthernet6/16
   2    0000.0000.0102   dynamic other                  FastEthernet6/16
   2    0000.0000.0103   dynamic other                  FastEthernet6/16
   2    0000.0000.0104   dynamic other                  FastEthernet6/16
   2    0000.0000.0105   dynamic other                  FastEthernet6/16
   2    0000.0000.0106   dynamic other                  FastEthernet6/16

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   2    ffff.ffff.ffff   system Fa6/16
Switch# 

Related Commands

show mac-address-table address
show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table multicast
show mac-address-table protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table multicast

To display multicast MAC address table information, use the show mac-address-table multicast command.

show mac-address-table multicast [count | {igmp-snooping [count]} | {user [count]} |
{vlan vlan_num}]

Syntax Description

count

(Optional) Displays number of multicast entries.

igmp-snooping

(Optional) Displays only addresses learned by IGMP snooping.

user

(Optional) Displays only user-entered static addresses.

vlan vlan_num

(Optional) Displays information for a specific VLAN only; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

Examples

This example shows how to display multicast MAC address table information for a specific VLAN:

Switch# show mac-address-table multicast vlan 1
Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
Switch# 

This example shows how to display the number of multicast MAC entries for all VLANs:

Switch# show mac-address-table multicast count
MAC Entries for all vlans:
Multicast MAC Address Count:                   141
Total Multicast MAC Addresses Available:       16384
Switch#     

Related Commands

show mac-address-table address
show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table protocol
show mac-address-table static
show mac-address-table vlan

show mac-address-table protocol

To display MAC address table information based on the protocol, use the show mac-address-table protocol command.

show mac-address-table protocol {assigned | ip | ipx | other}

Syntax Description

assigned

Specifies assigned protocol entries.

ip

Specifies IP protocol entries.

ipx

Specifies IPX protocol entries.

other

Specifies other protocol entries.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

Examples

This example shows how to display MAC address table entries that have a specific protocol type (in this case, assigned):

Switch# show mac-address-table protocol assigned
vlan   mac address     type    protocol  qos             ports
-----+---------------+--------+---------+---+--------------------------------
 200  0050.3e8d.6400  static   assigned  --  Switch
 100  0050.3e8d.6400  static   assigned  --  Switch
   5  0050.3e8d.6400  static   assigned  --  Switch
4092  0000.0000.0000  dynamic  assigned  --  Switch
   1  0050.3e8d.6400  static   assigned  --  Switch
   4  0050.3e8d.6400  static   assigned  --  Switch
4092  0050.f0ac.3058  static   assigned  --  Switch
4092  0050.f0ac.3059  dynamic  assigned  --  Switch
   1  0010.7b3b.0978  dynamic  assigned  --  Fa5/9
Switch# 

This example shows the other output for the previous example:

Switch# show mac-address-table protocol other
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0000.0000.0201   dynamic other                  FastEthernet6/15
   1    0000.0000.0202   dynamic other                  FastEthernet6/15
   1    0000.0000.0203   dynamic other                  FastEthernet6/15
   1    0000.0000.0204   dynamic other                  FastEthernet6/15
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch
   2    0000.0000.0101   dynamic other                  FastEthernet6/16
   2    0000.0000.0102   dynamic other                  FastEthernet6/16
   2    0000.0000.0103   dynamic other                  FastEthernet6/16
   2    0000.0000.0104   dynamic other                  FastEthernet6/16
Fa6/1   0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/2   0030.94fc.0dff    static ip,ipx,assigned,other  Switch

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
   2    ffff.ffff.ffff   system Fa6/16
1002    ffff.ffff.ffff   system
1003    ffff.ffff.ffff   system
1004    ffff.ffff.ffff   system
1005    ffff.ffff.ffff   system
Fa6/1   ffff.ffff.ffff   system Switch,Fa6/1
Fa6/2   ffff.ffff.ffff   system Switch,Fa6/2
Switch#  

Related Commands

show mac-address-table address
show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table static
show mac-address-table vlan

show mac-address-table static

To display static MAC address table entries only, use the show mac-address-table static command.

show mac-address-table static [address mac_addr | interface type number | protocol protocol | vlan vlan_id]

Syntax Description

address mac_addr

(Optional) Specifies a 48-bit MAC address to match; the valid format is H.H.H.

interface type slot/port

(Optional) Specifies an interface to match; valid values for type are FastEthernet and GigabitEthernet.

protocol protocol

(Optional) Specifies a protocol. See "Usage Guidelines" for more information.

vlan vlan_id

(Optional) Displays entries for a specific VLAN; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

The keyword definitions for the protocol argument are as follows:

assigned specifies assigned protocol entries.

ip specifies IP protocol.

ipx specifies IPX protocols.

other specifies other protocol entries.

Examples

This example shows how to display all static MAC address entries:

Switch# show mac-address-table static
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/1   0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/2   0030.94fc.0dff    static ip,ipx,assigned,other  Switch

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
   2    ffff.ffff.ffff   system Fa6/16
1002    ffff.ffff.ffff   system
1003    ffff.ffff.ffff   system
1004    ffff.ffff.ffff   system
1005    ffff.ffff.ffff   system
Fa6/1   ffff.ffff.ffff   system Switch,Fa6/1
Fa6/2   ffff.ffff.ffff   system Switch,Fa6/2
.
.
Switch# 

This example shows how to display static MAC address entries with a specific protocol type (in this case, assigned):

Switch# show mac-address-table static protocol assigned
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/1   0030.94fc.0dff    static ip,ipx,assigned,other  Switch
Fa6/2   0030.94fc.0dff    static ip,ipx,assigned,other  Switch

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
   2    ffff.ffff.ffff   system Fa6/16
1002    ffff.ffff.ffff   system
1003    ffff.ffff.ffff   system
1004    ffff.ffff.ffff   system
1005    ffff.ffff.ffff   system
Fa6/1   ffff.ffff.ffff   system Switch,Fa6/1
Fa6/2   ffff.ffff.ffff   system Switch,Fa6/2
Switch# 

Related Commands

show mac-address-table address
show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table protocol
show mac-address-table vlan

show mac-address-table vlan

To display MAC address table information for a specific VLAN, use the show mac-address-table vlan command.

show mac-address-table [vlan vlan_id] [protocol protocol]

Syntax Description

vlan vlan_id

(Optional) Displays entries for a specific VLAN; valid values are from 1 to 4094.

protocol protocol

(Optional) Specifies a protocol. See "Usage Guidelines" for more information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for extended addressing was added.


Usage Guidelines

For MAC address table entries used by routed ports, the routed port name is displayed in the "vlan" column rather than the internal VLAN number.

The keyword definitions for the protocol variable are as follows:

assigned specifies assigned protocol entries.

ip specifies IP protocol.

ipx specifies IPX protocols.

other specifies other protocol entries.

Examples

This example shows how to display MAC address table information for a specific VLAN:

Switch# show mac-address-table vlan 1
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0000.0000.0201   dynamic ip                     FastEthernet6/15
   1    0000.0000.0202   dynamic ip                     FastEthernet6/15
   1    0000.0000.0203   dynamic other                  FastEthernet6/15
   1    0000.0000.0204   dynamic other                  FastEthernet6/15
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
Switch#  

This example shows how to display MAC address table information for a specific protocol type:

Switch# show mac-address-table vlan 100 protocol other
Unicast Entries
 vlan   mac address     type        protocols               port
-------+---------------+--------+---------------------+--------------------
   1    0000.0000.0203   dynamic other                  FastEthernet6/15
   1    0000.0000.0204   dynamic other                  FastEthernet6/15
   1    0030.94fc.0dff    static ip,ipx,assigned,other  Switch

Multicast Entries
 vlan    mac address     type    ports
-------+---------------+-------+-------------------------------------------
   1    ffff.ffff.ffff   system Switch,Fa6/15
Switch#                                         

Related Commands

show mac-address-table address
show mac-address-table aging-time
show mac-address-table count
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table protocol
show mac-address-table static

show module

To display module information, use the show module command.

show module [mod | all]

Syntax Description

mod

(Optional) Number of the module; valid values vary from chassis to chassis.

all

(Optional) Displays information for all modules.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

In the Mod Sub-Module fields in the command output, the show module command displays the supervisor engine number but appends the uplink daughter card's module type and information.

If the PoE consumed by the module is more than 50 W above the adminstratively allocated PoE, the "Status" displays as "PwrOver." If the PoE consumed by the module is more than 50 W above the PoE module limit, the "Status" displays as "PwrFault."

Examples

This example shows how to display information for all modules.

This example shows the show module command output for a system with inadequate power for all installed modules. The system does not have enough power for Module 5; the "Status" displays it as "PwrDeny."

Switch# show module all
Mod  Ports Card Type                              Model             Serial No.
----+-----+--------------------------------------+-----------------+-----------
 1      2  1000BaseX (GBIC) Supervisor(active)    WS-X4014          JAB054109GH
 2      6  1000BaseX (GBIC)                       WS-X4306          00000110
 3     18  1000BaseX (GBIC)                       WS-X4418          JAB025104WK
 5      0  Not enough power for module            WS-X4148-FX-MT    00000000000
 6     48  10/100BaseTX (RJ45)                    WS-X4148          JAB023402RP

 M MAC addresses                    Hw  Fw           Sw               Status
--+--------------------------------+---+------------+----------------+---------
 1 005c.9d1a.f9d0 to 005c.9d1a.f9df 0.5 12.1(11br)EW 12.1(20020313:00 Ok
 2 0010.7bab.9920 to 0010.7bab.9925 0.2                               Ok
 3 0050.7356.2b36 to 0050.7356.2b47 1.0                               Ok
 5 0001.64fe.a930 to 0001.64fe.a95f 0.0                               PwrDeny
 6 0050.0f10.28b0 to 0050.0f10.28df 1.0                               Ok
Switch# 

This example shows how to display information for a specific module:

Switch# show module 2
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  2    2  Catalyst 4000 supervisor 2 (Active)    WS-X6K-SUP2-2GE    SAD04450LF1 
Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  2  0001.6461.39c0 to 0001.6461.39c1   1.1   6.1(3)       6.2(0.97)    Ok 
Mod Sub-Module                  Model           Serial           Hw     Status
--- --------------------------- --------------- --------------- ------- -------
  2 Policy Feature Card 2       WS-F6K-PFC2     SAD04440HVU      1.0    Ok
  2 Cat4k MSFC 2 daughterboard  WS-F6K-MSFC2    SAD04430J9K      1.1    Ok
Switch# 

show monitor

To display SPAN session information, use the show monitor command.

show monitor [session] [range session-range | local | remote | all | session-number] [detail]

Syntax Description

session

(Optional) Displays SPAN information for a session.

range

(Optional) Displays information for a range of sessions.

session-range

(Optional) Specifies a range of sessions.

local

(Optional) Displays all local SPAN sessions.

remote

(Optional) Displays RSPAN source and destination sessions.

all

(Optional) Displays SPAN and RSPAN sessions.

session-number

(Optional) Specifies a session number; valid values are from1 to 6.

detail

(Optional) Displays detailed SPAN information for a session.


Defaults

The detail keyword only displays lines with a nondefault configuration.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(13)EW

Added support for differing directions within a single user session.

12.1(19)EW

Output enhanced to display configuration status of SPAN enhancements.

12.1(20)EW

Added support to display configuration state for remote SPAN and learning.

12.2(20)EW

Added support to display ACLs that are applied to SPAN sessions.


Examples

This example shows how to display whether ACLs are applied to a given SPAN session on a Catalyst 4500 series switch:

Switch# show monitor

Session 1
---------
Type              : Local Session
Source Ports      :
    Both          : Fa6/1
Destination Ports : Fa6/2
    Encapsulation : Native
          Ingress : Disabled
         Learning : Disabled
Filter VLANs      : 1
IP Access-group   : 10

This example shows how to display SPAN information for session 2:

Switch# show monitor session 2
Session 2
------------
Type : Remote Source Session
Source Ports:
    RX Only:       Fa1/1-3
Dest RSPAN VLAN: 	 901
Ingress : Enabled, default VLAN=2
Learning : Disabled
Switch#

This example shows how to display detailed SPAN information for session 1:

Switch# show monitor session 1 detail
Session 1
---------
Type              : Local Session
Source Ports      :
    RX Only       : None
    TX Only       : None
    Both          : Gi1/1, CPU
Source VLANs      :
    RX Only       : None
    TX Only       : None
    Both          : None
Source RSPAN VLAN : Fa6/1
Destination Ports : Fa6/1
    Encapsulation : DOT1Q
          Ingress : Enabled, default VLAN = 2
Filter VLANs      : None
  Filter Types RX : Good
  Filter Types TX : None
Dest Rspan Vlan : 901
Ingress : Enabled, default VLAN=2
Learning : Disabled
IP Access-group : None
Switch#

This example shows how to display SPAN information for session 1 beginning with the line that starts with Destination:

Switch# show monitor session 1 | begin Destination
Destination Ports: None
Filter VLANs:      None
Switch# 
Switch#

Related Commands

monitor session

show pagp

To display port channel information, use the show pagp command.

show pagp [group-number] {counters | internal | neighbor}

Syntax Description

group-number

(Optional) Channel group number; valid values are from 1 to 64.

counters

Specifies traffic counter information.

internal

Specifies PAgP internal information.

neighbor

Specifies PAgP neighbor information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

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

Examples

This example shows how to display PAgP counter information:

Switch# show pagp counters
           Information        Flush
Port       Sent   Recv     Sent   Recv
--------------------------------------
Channel group: 1
  Fa5/4    2660   2452     0      0
  Fa5/5    2676   2453     0      0
Channel group: 2
  Fa5/6    289    261      0      0
  Fa5/7    290    261      0      0
Switch#  

This example shows how to display internal PAgP information:

Switch# show pagp 1 internal
Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.
Timers: H - Hello timer is running.        Q - Quit timer is running.
        S - Switching timer is running.    I - Interface timer is running.

Channel group 1
                                Hello    Partner  PAgP     Learning      
Port      Flags State   Timers  Interval Count   Priority  Method     IfIndx
Fa5/4     SC    U6/S7           30s      1        128      Any          129
Fa5/5     SC    U6/S7           30s      1        128      Any          129
Switch#                                                                 

This example shows how to display PAgP neighbor information for all neighbors:

Switch# show pagp neighbor
Flags:  S - Device is sending Slow hello.  C - Device is in Consistent state.
        A - Device is in Auto mode.        P - Device learns on physical port.

Channel group 1 neighbors
          Partner              Partner          Partner         Partner Group
Port      Name                 Device ID        Port       Age  Flags   Cap.
Fa5/4     JAB031301            0050.0f10.230c   2/45         2s SAC     2D
Fa5/5     JAB031301            0050.0f10.230c   2/46        27s SAC     2D

Channel group 2 neighbors
          Partner              Partner          Partner         Partner Group
Port      Name                 Device ID        Port       Age  Flags   Cap.
Fa5/6     JAB031301            0050.0f10.230c   2/47        10s SAC     2F
Fa5/7     JAB031301            0050.0f10.230c   2/48        11s SAC     2F

Switch# 

Related Commands

pagp learn-method
pagp port-priority

show policy-map

To display policy map information, use the show policy-map command.

show policy-map [policy_map_name]

Syntax Description

policy_map_name

(Optional) Name of the policy map.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display policy map information for all policy maps:

Switch# show policy-map 
Policy Map ipp5-policy
  class  ipp5
   set ip precedence 6
Switch# 

This example shows how to display policy map information for a specific policy map:

Switch# show policy ipp5-policy
Policy Map ipp5-policy
  class  ipp5
   set ip precedence 6
Switch# 

Related Commands

class-map
policy-map
show class-map
show policy-map interface

show policy-map interface

To display statistics and configurations of input and output policies attached to an interface, use the show policy-map interface command.

show policy-map interface [{FastEthernet interface-number} | {GigabitEthernet interface-number} | {port-channel number} | {vlan vlan_id}] [input | output]

Syntax Description

FastEthernet interface-number

(Optional) Specifies the Fast Ethernet 802.3 interface.

GigabitEthernet interface-number

(Optional) Specifies the Gigabit Ethernet 802.3z interface.

port-channel number

(Optional) Specifies the port channel.

vlan vlan_id

(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

input

(Optional) Specifies input policies only.

output

(Optional) Specifies output policies only.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Examples

This example shows how to display statistics and configurations of all input and output policies attached to an interface:

Switch# show policy-map interface

 FastEthernet6/1

  service-policy input:ipp5-policy

    class-map:ipp5 (match-all)
      0 packets
      match:ip precedence 5
      set:
        ip precedence 6

    class-map:class-default (match-any)
      0 packets
      match:any 
        0 packets


  service-policy output:ipp5-policy

    class-map:ipp5 (match-all)
      0 packets
      match:ip precedence 5
      set:
        ip precedence 6

    class-map:class-default (match-any)
      0 packets
      match:any 
        0 packets
Switch# 

This example shows how to display input policy statistics and configurations for a specific interface:

Switch# show policy-map interface fastethernet 5/36 input
service-policy input:ipp5-policy

    class-map:ipp5 (match-all)
      0 packets
      match:ip precedence 5
      set:
        ip precedence 6

    class-map:class-default (match-any)
      0 packets
      match:any 
        0 packets
Switch# 

Related Commands

class-map
policy-map
show class-map
show qos

show port-security

To display port security settings for an interface or for the switch, use the show port-security command.

show port-security [address] [interface interface-id]

Syntax Description

address

(Optional) Displays all secure MAC addresses for all ports or for a specific port.

interface interface-id

(Optional) Displays port security settings for a specific interface.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was first introduced on the Catalyst 4500 series switch.

12.2(18)EW

Support was enhanced to display sticky MAC addresses.


Usage Guidelines

If you enter the command without keywords, the output includes the administrative and operational status of all secure ports on the switch.

If you enter the interface-id value, the show port-security command displays port security settings for the interface.

If you enter the address keyword, the show port-security address command displays the secure MAC addresses for all interfaces and the aging information for each secure address.

If you enter the interface-id value and the address keyword, the show port-security address interface command displays all the MAC addresses for the interface with aging information for each secure address. You can also use this command to display all the MAC addresses for an interface even if you have not enabled port security on it.

Examples

This is an example of the output from the show port-security command:

Switch# show port-security
Secure Port      MaxSecureAddr  CurrentAddr  SecurityViolation  Security
Action
                    (Count)        (Count)      (Count)
----------------------------------------------------------------------------

     Fa0/1           11            11            0            Shutdown
     Fa0/5           15            5             0            Restrict
     Fa0/11          5             4             0            Protect
----------------------------------------------------------------------------

Total Addresses in System :21
Max Addresses limit in System :3072
Switch# 

This is an example of output from the show port-security interface fastethernet2/2 command:

Switch# show port-security interface fastethernet2/2
Port Security              : Enabled
Port Status                : Secure-up
Violation Mode             : Shutdown
Aging Time                 : 20 mins
Aging Type                 : Inactivity
SecureStatic Address Aging : Enabled
Maximum MAC Addresses      : 11
Total MAC Addresses        : 11
Configured MAC Addresses   : 3
Sticky MAC Addresses       : 0
Last Source Address        : 0000.0000.0000
Security Violation Count   : 0
Switch#

This is an example of output from the show port-security address command:

Switch# show port-security address

Secure Mac Address Table
-------------------------------------------------------------------
Vlan    Mac Address       Type                Ports   Remaining Age
                                                         (mins)
----    -----------       ----                -----   -------------
   1    0001.0001.0001    SecureDynamic       Fa2/1      15 (I)
   1    0001.0001.0002    SecureSticky        Fa2/1      15 (I)
   1    0001.0001.1111    SecureConfigured    Fa2/1      16 (I)
   1    0001.0001.1112    SecureConfigured    Fa2/1      -
   1    0001.0001.1113    SecureConfigured    Fa2/1      -
   1    0005.0005.0001    SecureConfigured    Fa2/5      23
   1    0005.0005.0002    SecureConfigured    Fa2/5      23
   1    0005.0005.0003    SecureConfigured    Fa2/5      23
   1    0011.0011.0001    SecureConfigured    Fa2/11     25 (I)
   1    0011.0011.0002    SecureConfigured    Fa2/11     25 (I)
   1    0000.0111.0111    SecureDynamic(Dot1x) Fa6/1        -

-------------------------------------------------------------------
Total Addresses in System :11
Max Addresses limit in System :3072
Switch# 

This is an example of output from the show port-security interface fastethernet2/5 address command:

Switch# show port-security interface fastethernet2/5 address
Secure Mac Address Table
-------------------------------------------------------------------
Vlan    Mac Address       Type                Ports   Remaining Age
                                                         (mins)
----    -----------       ----                -----   -------------
   1    0005.0005.0001    SecureConfigured    Fa0/5      19 (I)
   1    0005.0005.0002    SecureConfigured    Fa0/5      19 (I)
   1    0005.0005.0003    SecureConfigured    Fa0/5      19 (I)
-------------------------------------------------------------------
Total Addresses:3Total Addresses in System :10
Max Addresses limit in System :3072
Switch# 

Related Commands

switchport port-security

show power

To display the status of power information, use the show power command.

show power [available | capabilities | detail | inline {[interface] | consumption default | module mod} | module | status | supplies]

Syntax Description

available

(Optional) Displays available system power.

capabilities

(Optional) Displays individual power supply capabilities.

detail

(Optional) Displays detailed information on power resources.

inline

(Optional) Displays PoE status.

interface

(Optional) Type of interface; the only valid value is FastEthernet.

consumption default

(Optional ) Displays the PoE consumption.

module mod

(Optional) Displays PoE consumption for the specified module.

module

(Optional) Displays power consumption for each module.

status

(Optional) Displays power supply status.

supplies

(Optional) Displays the number of power supplies needed by the system.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If a powered device is connected to an interface with external power, the switch does not recognize the powered device. The Device column in the output of the show power inline command displays as unknown.

If your port is not capable of supporting Power over Ethernet, you will receive the following error message:

Power over Ethernet not supported on interface Admin

The show power in-line interface | module command displays the amount of power used to operate a Cisco 7960 IP Phone. To view the amount of power requested, use the show cdp neighbors command.

Because of the PoE consumed by FPGAs and other hardware components on the module the operating PoE consumption for an 802.3af-compliant module can be nonzero, even when there are no powered devices attached to the module. The operating PoE can vary by as much as 20 watts because of fluctuations in the PoE consumed by the hardware components.

Examples

This example shows how to display general power supply information:

Switch# show power
Power                                             Fan     Inline
Supply  Model No          Type       Status       Sensor  Status
------  ----------------  ---------  -----------  ------  ------
PS1     PWR-C45-2800AC    AC 2800W   good         good    good  
PS2     PWR-C45-1000AC    AC 1000W   err-disable  good    n.a.  

*** Power Supplies of different type have been detected***

Power supplies needed by system    :1
Power supplies currently available :1

Power Summary                      Maximum
 (in Watts)              Used     Available
----------------------   ----     ---------
System Power (12V)        328         1360
Inline Power (-50V)         0         1400
Backplane Power (3.3V)     10           40
----------------------   ----
Total Used                338 (not to exceed Total Maximum Available = 750)
Switch#

This example shows how to display the amount of available system power:

Switch# show power available
Power Summary
 (in Watts)    Available   Used   Remaining
-------------  ---------  ------  ---------
System Power     1360       280     1080
Inline Power     1400         0     1400
Maximum Power    2800       280     2520
Switch# 

This example shows how to display the detailed information for system power.

Switch# show power detail 
Power                                             Fan      Inline
Supply  Model No          Type       Status       Sensor   Status
------  ----------------  ---------  -----------  -------  -------
PS1     PWR-C45-1300ACV   AC 1300W   good         good     good   
PS2     none              --         --           --       --     

Power supplies needed by system    :1
Power supplies currently available :1

Power Summary                      Maximum
 (in Watts)              Used     Available
----------------------   ----     ---------
System Power (12V)        518        1000
Inline Power (-50V)        24         742
Backplane Power (3.3V)     40          40
----------------------   ----
Total Used                582 (not to exceed Total Maximum Available = 1300)


                           Watts Used of System Power (12V)
Mod   Model               currently  out of reset  in reset
----  -----------------   ---------  ------------  --------
 1    WS-X4013+              110         110         110
 3    WS-X4448-GB-LX          90          90          50
 4    WS-X4418                80          80          50
 5    WS-X4248-RJ45V          65          65          25
 6    WS-X4248-RJ45V          65          65          25
 7    WS-4548-GB-RJ45         58          58          15
 --   Fan Tray                50          --          --
-----------------------   ---------  ------------   -------
       Total                 518         468         275

                        Inline Power Admin  Inline Power Oper
Mod   Model                PS     Device       PS     Device  Efficiency
----  -----------------  ----------------    ---------------- ----------
 1    WS-X4013+              -        -          -        -           -
 3    WS-X4448-GB-LX         -        -          -        -           -
 4    WS-X4418               -        -          -        -           -
 5    WS-X4248-RJ45V        24       22         22       20          89
 6    WS-X4248-RJ45V         0        0         22       20          89
 7    WS-4548-GB-RJ45        -        -          -        -           -
-----------------------  ----------------    ---------------- ----------
       Total                24       22         44       40


Note The "Inline Power Oper" displays the PoE consumed by the powered devices attached to the module in addition to the PoE consumed by the FPGAs and other hardware components on the module. The "Inline Power Admin" displays only the PoE allocated by the powered devices attached to the module.


This example shows how to display the power status information:

Switch# show power status
Power                                             Fan     Inline
Supply  Model No          Type       Status       Sensor  Status
------  ----------------  ---------  -----------  ------  ------
PS1     PWR-C45-2800AC    AC 2800W   good         good    good
PS2     PWR-C45-2800AC    AC 2800W   good         good    good

Power Supply    Max     Min     Max     Min     Absolute
(Nos in Watts)  Inline  Inline  System  System  Maximum
--------------  ------  ------  ------  ------  --------
PS1             1400    1400    1360    1360    2800
PS2             1400    1400    1360    1360    2800
Switch# 

This example shows how to verify the PoE consumption for the switch:

Switch# show power inline consumption default
Default PD consumption : 5000 mW
Switch# 

This example shows how to display the status of inline power:

Switch# show power inline 
Available:677(w)  Used:117(w)  Remaining:560(w)

Interface Admin  Oper            Power(Watts)     Device              Class
                            From PS    To Device                    
--------- ------ ---------- ---------- ---------- ------------------- -----
Fa3/1     auto   on         17.3       15.4       Ieee PD             0    
Fa3/2     auto   on         4.5        4.0        Ieee PD             1    
Fa3/3     auto   on         7.1        6.3        Cisco IP Phone 7960 0    
Fa3/4     auto   on         7.1        6.3        Cisco IP Phone 7960 n/a  
Fa3/5     auto   on         17.3       15.4       Ieee PD             0    
Fa3/6     auto   on         17.3       15.4       Ieee PD             0    
Fa3/7     auto   on         4.5        4.0        Ieee PD             1    
Fa3/8     auto   on         7.9        7.0        Ieee PD             2    
Fa3/9     auto   on         17.3       15.4       Ieee PD             3    
Fa3/10    auto   on         17.3       15.4       Ieee PD             4    
Fa3/11    auto   off        0          0          n/a                 n/a  
Fa3/12    auto   off        0          0          n/a                 n/a  
Fa3/13    auto   off        0          0          n/a                 n/a  
Fa3/14    auto   off        0          0          n/a                 n/a  
Fa3/15    auto   off        0          0          n/a                 n/a  
Fa3/16    auto   off        0          0          n/a                 n/a  
Fa3/17    auto   off        0          0          n/a                 n/a  
Fa3/18    auto   off        0          0          n/a                 n/a  
          
--------- ------ ---------- ---------- ---------- ------------------- -----

Totals:          10   on    117.5      104.6     

Switch# 

This example shows how to display the number of power supplies needed by the system:

Switch# show power supplies
Power supplies needed by system = 2
Switch# 

This example shows how to display the PoE status for Fast Ethernet interface 3/1:

Switch# show power inline fa3/1
Available:677(w)  Used:11(w)  Remaining:666(w)

Interface Admin  Oper            Power(Watts)     Device              Class
                            From PS    To Device                    
--------- ------ ---------- ---------- ---------- ------------------- -----

Fa3/1     auto   on         11.2       10.0       Ieee PD             0    

Interface  AdminPowerMax   AdminConsumption    
             (Watts)           (Watts)           
---------- --------------- --------------------  

Fa3/1                 15.4                 10.0
Switch# 

Related Commands

power dc input
power inline
power inline consumption
power redundancy-mode
power supplies required

show qos

To display QoS information, use the show qos command.

show qos

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows the output that might be displayed if you do not enter any keywords:

Switch# show qos
  QoS is enabled globally
Switch# 

Related Commands

qos (global configuration mode)
qos (interface configuration mode)

show qos aggregate policer

To display QoS aggregate policer information, use the show qos aggregate policer command.

show qos aggregate policer [aggregate_name]

Syntax Description

aggregate_name

(Optional) Named aggregate policer.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The aggregate policer name is case sensitive.

Examples

This example shows the output if you do not enter any keywords:

Switch# show qos aggregate policer
Policer aggr-1
Rate(bps):10000000 Normal-Burst(bytes):1000000
conform-action:transmit exceed-action:policed-dscp-transmit 
Policymaps using this policer:
    ipp5-policy
Switch# 

Related Commands

qos aggregate-policer

show qos dbl

To display global Dynamic Buffer Limiting (DBL) information, use the show qos dbl command.

show qos dbl

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display global DBL information:

Switch# show qos dbl
DBL is enabled globally
DBL flow includes vlan
DBL flow includes l4-ports
DBL does not use ecn to indicate congestion
DBL exceed-action mark probability:15%
DBL max credits:15
DBL aggressive credit limit:10
DBL aggressive buffer limit:2 packets
Switch# 

Related Commands

qos (global configuration mode)
qos dbl

show qos interface

To display queueing information, use the show qos interface command.

show qos interface {FastEthernet interface-number | GigabitEthernet interface-number} |
[
vlan vlan_id | port-channel number]

Syntax Description

FastEthernet interface-number

Specifies the Fast Ethernet 802.3 interface.

GigabitEthernet interface-number

Specifies the Gigabit Ethernet 802.3z interface.

vlan vlan_id

(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

port-channel number

(Optional) Specifies the port channel; valid ranges are from 1 to 64.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(13)EW

Added support for extended VLAN addresses.

12.1(19)EW

Display changed to include the Port Trust Device.


Examples

This example shows how to display queueing information:

Switch# show qos interface fastethernet 6/1
QoS is enabled globally
Port QoS is enabled
Administrative Port Trust State: `dscp'
Operational Port Trust State: `untrusted'
Port Trust Device:'cisco-phone' 
Default DSCP:0 Default CoS:0

    Tx-Queue   Bandwidth   ShapeRate   Priority   QueueSize
                 (bps)       (bps)                (packets)
      1        31250000    disabled    N/A        240      
      2        31250000    disabled    N/A        240      
      3        31250000    disabled    normal     240      
      4        31250000    disabled    N/A        240 
Switch# 

Related Commands

qos map cos
show qos
tx-queue

show qos maps

To display QoS map information, use the show qos maps command.

show qos maps [cos | dscp [policed | tx-queue]]

Syntax Description

cos

(Optional) Displays CoS map information.

dscp

(Optional) Displays DSCP map information.

policed

(Optional) Displays policed map information.

tx-queue

(Optional) Displays tx-queue map information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display QoS map settings:

Switch# show qos maps
DSCP-TxQueue Mapping Table (dscp = d1d2)
d1 :d2  0  1  2  3  4  5  6  7  8  9
-------------------------------------
 0 :   01 01 01 01 01 01 01 01 01 01
 1 :   01 01 01 01 01 01 02 02 02 02
 2 :   02 02 02 02 02 02 02 02 02 02
 3 :   02 02 03 03 03 03 03 03 03 03
 4 :   03 03 03 03 03 03 03 03 04 04
 5 :   04 04 04 04 04 04 04 04 04 04
 6 :   04 04 04 04

Policed DSCP Mapping Table (dscp = d1d2)
d1 :d2  0  1  2  3  4  5  6  7  8  9
-------------------------------------
 0 :   00 01 02 03 04 05 06 07 08 09
 1 :   10 11 12 13 14 15 16 17 18 19
 2 :   20 21 22 23 24 25 26 27 28 29
 3 :   30 31 32 33 34 35 36 37 38 39
 4 :   40 41 42 43 44 45 46 47 48 49
 5 :   50 51 52 53 54 55 56 57 58 59
 6 :   60 61 62 63

DSCP-CoS Mapping Table (dscp = d1d2)
d1 :d2  0  1  2  3  4  5  6  7  8  9
-------------------------------------
 0 :   00 00 00 00 00 00 00 00 01 01
 1 :   01 01 01 01 01 01 02 02 02 02
 2 :   02 02 02 02 03 03 03 03 03 03
 3 :   03 03 04 04 04 04 04 04 04 04
 4 :   05 05 05 05 05 05 05 05 06 06
 5 :   06 06 06 06 06 06 07 07 07 07
 6 :   07 07 07 07

CoS-DSCP Mapping Table
   CoS:  0  1  2  3  4  5  6  7
--------------------------------
  DSCP:  0  8 16 24 32 40 48 56

Switch# 

Related Commands

qos (global configuration mode)
qos (interface configuration mode)

show redundancy

To display redundancy facility information, use the show redundancy command.

show redundancy {clients | counters | history | states}

Syntax Description

clients

Displays the redundancy facility client information.

counters

Displays the redundancy facility counter information.

history

Displays a log of past status and related information for the redundancy facility.

states

Displays the redundancy facility state information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1.(13)EW

Support for this command was introduced on the Catalyst 4500 series switch (Catalyst 4507R only.)


Examples

This example shows how to display redundancy facility client information:

Switch# show redundancy clients
clientID = 0       clientSeq = 0        RF_INTERNAL_MSG       
clientID = 30      clientSeq = 135      Redundancy Mode RF    
clientID = 28      clientSeq = 330      GALIOS_CONFIG_SYNC    
clientID = 65000   clientSeq = 65000    RF_LAST_CLIENT Switch 

The output displays the following information:

clientID displays the client's ID number.

clientSeq displays the client's notification sequence number.

Current redundancy facility state.

This example shows how to display the redundancy facility counter information:

Switch# show redundancy counters
Redundancy Facility OMs
               comm link up = 1 
        comm link down down = 0 

          invalid client tx = 0 
          null tx by client = 0 
                tx failures = 0 
      tx msg length invalid = 0 

      client not rxing msgs = 0 
 rx peer msg routing errors = 0 
           null peer msg rx = 0 
        errored peer msg rx = 0 

                 buffers tx = 1535 
     tx buffers unavailable = 0 
                 buffers rx = 1530 
      buffer release errors = 0 

 duplicate client registers = 0 
  failed to register client = 0 
       Invalid client syncs = 0 

This example shows how to display redundancy facility history information:

Switch# show redundancy history
00:00:01 client added: RF_INTERNAL_MSG(0) seq=0
00:00:01 client added: RF_LAST_CLIENT(65000) seq=65000
00:00:01 client added: GALIOS_CONFIG_SYNC(28) seq=330
00:00:03 client added: Redundancy Mode RF(30) seq=135
00:00:03 *my state = INITIALIZATION(2) *peer state = DISABLED(1)
00:00:03 RF_PROG_INITIALIZATION(100) RF_INTERNAL_MSG(0) op=0 rc=11
00:00:03 RF_PROG_INITIALIZATION(100) Redundancy Mode RF(30) op=0 rc=11
00:00:03 RF_PROG_INITIALIZATION(100) GALIOS_CONFIG_SYNC(28) op=0 rc=11
00:00:03 RF_PROG_INITIALIZATION(100) RF_LAST_CLIENT(65000) op=0 rc=11
00:00:03 *my state = NEGOTIATION(3) peer state = DISABLED(1)
00:00:25 RF_EVENT_GO_ACTIVE(511) op=0
00:00:25 *my state = ACTIVE-FAST(9) peer state = DISABLED(1)
00:00:25 RF_STATUS_MAINTENANCE_ENABLE(403) Redundancy Mode RF(30) op=0
00:00:25 RF_STATUS_MAINTENANCE_ENABLE(403) GALIOS_CONFIG_SYNC(28) op=0
00:00:25 RF_PROG_ACTIVE_FAST(200) RF_INTERNAL_MSG(0) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_FAST(200) Redundancy Mode RF(30) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_FAST(200) GALIOS_CONFIG_SYNC(28) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_FAST(200) RF_LAST_CLIENT(65000) op=0 rc=11
00:00:25 *my state = ACTIVE-DRAIN(10) peer state = DISABLED(1)
00:00:25 RF_PROG_ACTIVE_DRAIN(201) RF_INTERNAL_MSG(0) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_DRAIN(201) Redundancy Mode RF(30) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_DRAIN(201) GALIOS_CONFIG_SYNC(28) op=0 rc=11
00:00:25 RF_PROG_ACTIVE_DRAIN(201) RF_LAST_CLIENT(65000) op=0 rc=11
---cut---cut---cut---
---cut---cut---cut---
00:01:34 RF_PROG_PLATFORM_SYNC(300) RF_INTERNAL_MSG(0) op=0 rc=11
00:01:34 RF_PROG_PLATFORM_SYNC(300) Redundancy Mode RF(30) op=0 rc=11
00:01:34 RF_PROG_PLATFORM_SYNC(300) GALIOS_CONFIG_SYNC(28) op=0 rc=0
00:01:34 RF_EVENT_CLIENT_PROGRESSION(503) GALIOS_CONFIG_SYNC(28) op=1 rc=0
00:01:36 RF_EVENT_PEER_PROG_DONE(506) GALIOS_CONFIG_SYNC(28) op=300
00:01:36 RF_PROG_PLATFORM_SYNC(300) RF_LAST_CLIENT(65000) op=0 rc=0
00:01:36 RF_EVENT_CLIENT_PROGRESSION(503) RF_LAST_CLIENT(65000) op=1 rc=0
00:01:36 RF_EVENT_PEER_PROG_DONE(506) RF_LAST_CLIENT(65000) op=300
00:01:38 *my state = ACTIVE(13) *peer state = STANDBY COLD(4)

This example shows how to display redundancy facility state information:

Switch# show redundancy state 
       my state = 13 -ACTIVE 
     peer state = 4  -STANDBY COLD 
           Mode = Duplex
           Unit = Primary
        Unit ID = 1

Redundancy Mode (Operational) = RPR
Redundancy Mode (Configured)  = RPR
     Split Mode = Disabled
   Manual Swact = Enabled
 Communications = Up

   client count = 4
 client_notification_TMR = 30000 milliseconds
          keep_alive TMR = 4000 milliseconds
        keep_alive count = 1 
    keep_alive threshold = 7 
           RF debug mask = 0x0   
Switch# 

Related Commands

redundancy
redundancy force-switchover

show running-config

To display module status and configuration, use the show running-config command.

show running-config [module slot]

Syntax Description

module slot

(Optional) Specifies the module slot number; valid values are from 1 to 6.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

In some cases, you might see a difference in the duplex mode displayed when you enter the show interfaces command and the show running-config command. If you do see a difference, the duplex mode displayed in the show interfaces command is the actual duplex mode the interface is running. The show interfaces command shows the operating mode for an interface, while the show running-config command shows the configured mode for an interface.

The show running-config command output for an interface may display a duplex mode configuration but no configuration for the speed. When no speed is displayed in the output, it indicates that the interface speed is configured to be auto and that the duplex mode shown becomes the operational setting once the speed is configured to something other than auto. With this configuration, it is possible that the operating duplex mode for that interface does not match the duplex mode shown with the show running-config command.

Examples

This example shows how to display module and status configuration for all modules:

Switch# show running-config
03:23:36:%SYS-5-CONFIG_I:Configured from console by consolesh runn
Building configuration...

Current configuration:3268 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
!
power supplies required 1
ip subnet-zero
!
!
!
interface FastEthernet1
 no ip address
 shutdown
 duplex auto
 speed auto
Switch# 

This example shows the output for the show running-config command when you have enabled the switchport voice vlan command:

Switch# show running-config int fastethernet 6/1
Building configuration...

Current configuration:133 bytes
!
interface FastEthernet6/1
 switchport voice vlan 2
 no snmp trap link-status
 spanning-tree portfast
 channel-group 1 mode on
end

Switch# 

show slavebootflash:

To display information about the standby bootflash file system, use the show slavebootflash: command.

show slavebootflash: [all | chips | filesys]

Syntax Description

all

(Optional) Displays all possible Flash information.

chips

(Optional) Displays Flash chip information.

filesys

(Optional) Displays file system information.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display file system status information:

Switch# show slavebootflash: filesys

-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: bootflash
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 40000
  Programming Algorithm = 39        Erased State     = FFFFFFFF
  File System Offset    = 40000     Length = F40000
  MONLIB Offset         = 100       Length = C628
  Bad Sector Map Offset = 3FFF8     Length = 8
  Squeeze Log Offset    = F80000    Length = 40000
  Squeeze Buffer Offset = FC0000    Length = 40000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 917CE8  Bytes Available = 628318
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 2       Bytes = 917BE8
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 0
Switch>     

This example shows how to display system image information:

Switch# show slavebootflash:
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    8C5A393A  237E3C   14  2063804 Aug 23 1999 16:18:45 c4-boot-mz
2   .. image    D86EE0AD  957CE8    9  7470636 Sep 20 1999 13:48:49 rp.halley  
Switch> 

This example shows how to display all bootflash information:

Switch# show slavebootflash: all
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    8C5A393A  237E3C   14  2063804 Aug 23 1999 16:18:45 c4-boot-
mz
2   .. image    D86EE0AD  957CE8    9  7470636 Sep 20 1999 13:48:49 rp.halley

6456088 bytes available (9534696 bytes used)

-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: bootflash
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 40000
  Programming Algorithm = 39        Erased State     = FFFFFFFF
  File System Offset    = 40000     Length = F40000
  MONLIB Offset         = 100       Length = C628
  Bad Sector Map Offset = 3FFF8     Length = 8
  Squeeze Log Offset    = F80000    Length = 40000
  Squeeze Buffer Offset = FC0000    Length = 40000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 917CE8  Bytes Available = 628318
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 2       Bytes = 917BE8
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 0
Switch>       

show slaveslot0:

To display information about the file system on the standby supervisor engine, use the show slaveslot0: command.

show slot0: [all | chips | filesys]

Syntax Description

all

(Optional) Displays all Flash information including the output from the show slot0: chips and show slot0: filesys commands.

chips

(Optional) Displays Flash chip register information.

filesys

(Optional) Displays file system status information.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display a summary of the file system:

Switch# show slaveslot0:
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    6375DBB7  A4F144    6 10678468 Nov 09 1999 10:50:42 halley

5705404 bytes available (10678596 bytes used) 
Switch> 

This example shows how to display Flash chip information:

Switch# show slaveslot0: chips
******** Intel Series 2+ Status/Register Dump ********
ATTRIBUTE MEMORY REGISTERS:
  Config Option Reg (4000): 2
  Config Status Reg (4002): 0
  Card Status   Reg (4100): 1
  Write Protect Reg (4104): 4
  Voltage Cntrl Reg (410C): 0
  Rdy/Busy Mode Reg (4140): 2

COMMON MEMORY REGISTERS: Bank 0
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 1
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 2
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 3
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 4
  Intelligent ID Code  : FFFFFFFF
    IID Not Intel -- assuming bank not populated

This example shows how to display file system information:

Switch# show slaveslot0: filesys
-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: slot0
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 20000
  Programming Algorithm = 4         Erased State     = FFFFFFFF
  File System Offset    = 20000     Length = FA0000
  MONLIB Offset         = 100       Length = F568
  Bad Sector Map Offset = 1FFF0     Length = 10
  Squeeze Log Offset    = FC0000    Length = 20000
  Squeeze Buffer Offset = FE0000    Length = 20000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 9F365C  Bytes Available = 5AC9A4
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 1       Bytes = 9F35DC
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 
Switch> 

show slot0:

To display information about the slot0: file system, use the show slot0: command.

show slot0: [all | chips | filesys]

Syntax Description

all

(Optional) Displays all Flash information including the output from the show slot0: chips and show slot0: filesys commands.

chips

(Optional) Displays Flash chip register information.

filesys

(Optional) Displays file system status information.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display a summary of the file system:

Switch# show slot0:
-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
1   .. image    6375DBB7  A4F144    6 10678468 Nov 09 1999 10:50:42 halley

5705404 bytes available (10678596 bytes used) 
Switch> 

This example shows how to display Flash chip information:

Switch# show slot0: chips
******** Intel Series 2+ Status/Register Dump ********
ATTRIBUTE MEMORY REGISTERS:
  Config Option Reg (4000): 2
  Config Status Reg (4002): 0
  Card Status   Reg (4100): 1
  Write Protect Reg (4104): 4
  Voltage Cntrl Reg (410C): 0
  Rdy/Busy Mode Reg (4140): 2

COMMON MEMORY REGISTERS: Bank 0
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0


COMMON MEMORY REGISTERS: Bank 1
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 2
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 3
  Intelligent ID Code  : 8989A0A0
  Compatible Status Reg: 8080
  Global     Status Reg: B0B0
  Block Status Regs:
    0  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    8  :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    16 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0
    24 :  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0  B0B0

COMMON MEMORY REGISTERS: Bank 4
  Intelligent ID Code  : FFFFFFFF
    IID Not Intel -- assuming bank not populated
Switch>      

This example shows how to display file system information:

Switch# show slot0: filesys
-------- F I L E   S Y S T E M   S T A T U S --------
  Device Number = 0
DEVICE INFO BLOCK: slot0
  Magic Number          = 6887635   File System Vers = 10000    (1.0)
  Length                = 1000000   Sector Size      = 20000
  Programming Algorithm = 4         Erased State     = FFFFFFFF
  File System Offset    = 20000     Length = FA0000
  MONLIB Offset         = 100       Length = F568
  Bad Sector Map Offset = 1FFF0     Length = 10
  Squeeze Log Offset    = FC0000    Length = 20000
  Squeeze Buffer Offset = FE0000    Length = 20000
  Num Spare Sectors     = 0
    Spares:
STATUS INFO:
  Writable
  NO File Open for Write
  Complete Stats
  No Unrecovered Errors
  No Squeeze in progress
USAGE INFO:
  Bytes Used     = 9F365C  Bytes Available = 5AC9A4
  Bad Sectors    = 0       Spared Sectors  = 0
  OK Files       = 1       Bytes = 9F35DC
  Deleted Files  = 0       Bytes = 0
  Files w/Errors = 0       Bytes = 0
Switch> 

show spanning-tree

To display spanning tree state information, use the show spanning-tree command.

show spanning-tree [bridge_group | active | backbonefast | bridge [id] | inconsistentports | interface type | root | summary [total] | uplinkfast | vlan vlan_id | pathcost method | detail]

Syntax Description

bridge_group

(Optional) Specifies the bridge group number; valid values are from 1 to 255.

active

(Optional) Displays spanning tree information on active interfaces only.

backbonefast

(Optional) Displays spanning tree BackboneFast status.

bridge

(Optional) Displays bridge status and configuration information.

id

(Optional) Name of the bridge.

inconsistentports

(Optional) Displays root inconsistency state.

interface type

(Optional) Specifies the interface type and number; valid values are FastEthernet, GigabitEthernet, port-channel (1 to 64), and vlan (1 to 4094).

root

(Optional) Displays root bridge status and configuration.

summary

(Optional) Specifies a summary of port states.

total

(Optional) Displays the total lines of the spanning tree state section.

uplinkfast

(Optional) Displays spanning tree UplinkFast status.

vlan vlan_id

(Optional) Specifies the VLAN ID; valid values are from 1 to 4094.

pathcost method

(Optional) Displays the default path cost calculation method used.

detail

(Optional) Displays a summary of interface information.


Defaults

Interface information summary is displayed.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Support for extended addressing was added.


Examples

This example shows how to display spanning tree information on active interfaces only:

Switch# show spanning-tree active
UplinkFast is disabled
BackboneFast is disabled

 VLAN1 is executing the ieee compatible Spanning Tree protocol
  Bridge Identifier has priority 32768, address 0050.3e8d.6401
  Configured hello time 2, max age 20, forward delay 15
  Current root has priority 16384, address 0060.704c.7000
  Root port is 265 (FastEthernet5/9), cost of root path is 38
  Topology change flag not set, detected flag not set
  Number of topology changes 0 last change occurred 18:13:54 ago
  Times:  hold 1, topology change 24, notification 2
          hello 2, max age 14, forward delay 10
  Timers: hello 0, topology change 0, notification 0

 Port 265 (FastEthernet5/9) of VLAN1 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 129.9.
   Designated root has priority 16384, address 0060.704c.7000
   Designated bridge has priority 32768, address 00e0.4fac.b000
   Designated port id is 128.2, designated path cost 19
   Timers: message age 3, forward delay 0, hold 0
   Number of transitions to forwarding state: 1
   BPDU: sent 3, received 32852    
.
.
.
Switch# 

This example shows how to display spanning tree BackboneFast status:

Switch# show spanning-tree backbonefast
BackboneFast is enabled
 
BackboneFast statistics
-----------------------
Number of transition via backboneFast (all VLANs) : 0
Number of inferior BPDUs received (all VLANs)     : 0
Number of RLQ request PDUs received (all VLANs)   : 0
Number of RLQ response PDUs received (all VLANs)  : 0
Number of RLQ request PDUs sent (all VLANs)       : 0
Number of RLQ response PDUs sent (all VLANs)      : 0
Switch# 

This example shows how to display spanning tree information for the bridge:

Switch# show spanning-tree bridge
VLAN1
  Bridge ID  Priority    32768
             Address     0050.3e8d.6401
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
VLAN2
  Bridge ID  Priority    32768
             Address     0050.3e8d.6402
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
VLAN3
  Bridge ID  Priority    32768
             Address     0050.3e8d.6403
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec          
.
.
.
Switch# 

This example shows how to display a summary of interface information:

Switch# show spanning-tree 

VLAN1
  Spanning tree enabled protocol ieee
  Root ID    Priority    32768
             Address     0030.94fc.0a00
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32768
             Address     0030.94fc.0a00
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface                                       Designated
Name                   Port ID Prio  Cost Sts   Cost Bridge ID            Port ID
-------------------    ------- --- ------ ---   ---- -------------------- -------
FastEthernet6/15       129.79  128     19 FWD      0 32768 0030.94fc.0a00 129.79


VLAN2
  Spanning tree enabled protocol ieee
  Root ID    Priority    32768
             Address     0030.94fc.0a01
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32768
             Address     0030.94fc.0a01
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface                                       Designated
Name                   Port ID Prio  Cost Sts   Cost Bridge ID            Port ID
-------------------    ------- --- ------ ---   ---- -------------------- -------
FastEthernet6/16       129.80  128     19 FWD      0 32768 0030.94fc.0a01 129.80
Switch# 

This example shows how to display spanning tree information for a specific interface:

Switch# show spanning-tree interface fastethernet 5/9
Interface Fa0/10 (port 23) in Spanning tree 1 is ROOT-INCONSISTENT 
Port path cost 100, Port priority 128 
Designated root has priority 8192, address 0090.0c71.a400 
Designated bridge has priority 32768, address 00e0.1e9f.8940 
Designated port is 23, path cost 115 
Timers: message age 0, forward delay 0, hold 0 
BPDU: sent 0, received 0 
The port is in the portfast mode

This example shows how to display spanning tree information for a specific VLAN:

Switch# show spanning-tree vlan 1
VLAN1 is executing the ieee compatible Spanning Tree protocol
  Bridge Identifier has priority 32768, address 0030.94fc.0a00
  Configured hello time 2, max age 20, forward delay 15
  We are the root of the spanning tree
  Topology change flag not set, detected flag not set
  Number of topology changes 5 last change occurred 01:50:47 ago
          from FastEthernet6/16
  Times: hold 1, topology change 35, notification 2
          hello 2, max age 20, forward delay 15

  Timers:hello 0, topology change 0, notification 0, aging 300

 Port 335 (FastEthernet6/15) of VLAN1 is forwarding
   Port path cost 19, Port priority 128, Port Identifier 129.79.
   Designated root has priority 32768, address 0030.94fc.0a00
   Designated bridge has priority 32768, address 0030.94fc.0a00
   Designated port id is 129.79, designated path cost 0
   Timers:message age 0, forward delay 0, hold 0
   Number of transitions to forwarding state:1
   BPDU:sent 6127, received 0
Switch# 

This example shows how to display spanning tree information for a specific bridge group:

Switch# show spanning-tree vlan 1
 UplinkFast is disabled
 BackboneFast is disabled

This example shows how to display a summary of port states:

Switch# show spanning-tree summary 
Root bridge for:VLAN1, VLAN2.
PortFast BPDU Guard is disabled
EtherChannel misconfiguration guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Default pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active
-------------------- -------- --------- -------- ---------- ----------
VLAN1                  0        0         0        1          1
VLAN2                  0        0         0        1          1
-------------------- -------- --------- -------- ---------- ----------
             2 VLANs 0        0         0        2          2
Switch#      

This example shows how to display the total lines of the spanning tree state section:

Switch#  show spanning-tree summary totals 
Root bridge for:VLAN1, VLAN2.
PortFast BPDU Guard is disabled
EtherChannel misconfiguration guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Default pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active
-------------------- -------- --------- -------- ---------- ----------
             2 VLANs 0        0         0        2          2
Switch# 

This example shows how to determine whether any ports are in root inconsistent state:

Switch#  show spanning-tree inconsistentports 

Name                 Interface            Inconsistency
-------------------- -------------------- ------------------
VLAN1               FastEthernet3/1      Root Inconsistent

Number of inconsistent ports (segments) in the system:1
Switch# 

Related Commands

spanning-tree backbonefast
spanning-tree cost
spanning-tree guard
spanning-tree pathcost method
spanning-tree portfast default
spanning-tree portfast (interface configuration mode)
spanning-tree port-priority
spanning-tree uplinkfast
spanning-tree vlan

show spanning-tree mst

To display MST protocol information, use the show spanning-tree mst command.

show spanning-tree mst [configuration]

show spanning-tree mst [instance-id] [detail]

show spanning-tree mst [instance-id] interface interface [detail]

Syntax Description

configuration

(Optional) Displays region configuration information.

instance-id

(Optional) Instance identification number; valid values are from 0 to 15.

detail

(Optional) Displays detailed MST protocol information.

interface interface

(Optional) Interface type and number; valid values for type are FastEthernet, GigabitEthernet, port-channel, and vlan. See "Usage Guidelines" for more information.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

This command is not supported on systems configured with a Supervisor Engine 1.

In the output display of the show spanning-tree mst configuration command, a warning message might display. This message appears if you do not map secondary VLANs to the same instance as the associated primary VLAN. The display includes a list of the secondary VLANs that are not mapped to the same instance as the associated primary VLAN. The warning message is as follows:

These secondary vlans are not mapped to the same instance as their primary:
-> 3

See the show spanning-tree command for output definitions.

Examples

This example shows how to display region configuration information:

Switch# show spanning-tree mst configuration 
Name      [leo]
Revision  2702
Instance  Vlans mapped
--------  ---------------------------------------------------------------------
0         1-9,11-19,21-29,31-39,41-4094
1         10,20,30,40
-------------------------------------------------------------------------------

This example shows how to display additional MST protocol values:

Switch# show spanning-tree mst 3 detail 
# # # # # # MST03 vlans mapped: 3,3000-3999 
Bridge address 0002.172c.f400 priority 32771 (32768 sysid 3) 
Root this switch for MST03

GigabitEthernet1/1 of MST03 is boundary forwarding 
Port info port id 128.1 priority 128 
cost 20000 
Designated root address 0002.172c.f400 priority 32771 
cost 0 
Designated bridge address 0002.172c.f400 priority 32771 port 
id 128.1 
Timers: message expires in 0 sec, forward delay 0, forward transitions 1 
Bpdus (MRecords) sent 4, received 0

FastEthernet4/2 of MST03 is backup blocking 
Port info port id 128.194 priority 128 cost 
200000 
Designated root address 0002.172c.f400 priority 32771 
cost 0 
Designated bridge address 0002.172c.f400 priority 32771 port id 
128.193 
Timers: message expires in 2 sec, forward delay 0, forward transitions 1 
Bpdus (MRecords) sent 3, received 252
Switch# 

This example shows how to display MST information for a specific interface:

Switch# show spanning-tree mst 0 interface fastEthernet 4/1 detail 
Edge port: no (trunk) port guard : none 
(default) 
Link type: point-to-point (point-to-point) bpdu filter: disable 
(default) 
Boundary : internal bpdu guard : disable 
(default)
FastEthernet4/1 of MST00 is designated forwarding 
Vlans mapped to MST00 1-2,4-2999,4000-4094 
Port info port id 128.193 priority 128 cost 
200000 
Designated root address 0050.3e66.d000 priority 8193 
cost 20004 
Designated ist master address 0002.172c.f400 priority 49152 
cost 0 
Designated bridge address 0002.172c.f400 priority 49152 port id 
128.193 
Timers: message expires in 0 sec, forward delay 0, forward transitions 1 
Bpdus sent 492, received 3
Switch# 

Related Commands

spanning-tree mst
spanning-tree mst forward-time
spanning-tree mst hello-time
spanning-tree mst max-hops
spanning-tree mst root

show storm-control

To display broadcast storm control settings on the switch or on the specified interface, use the show storm-control user EXEC command.

show storm-control [interface-id | broadcast]

Syntax Description

interface-id

(Optional) Specifies the interface ID for the physical port.

broadcast

(Optional) Displays broadcast storm threshold setting.


Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

When you enter an interface ID, the storm control thresholds are displayed for the specified interface.

If you do not enter an interface ID, settings are displayed for broadcast traffic type for all ports on the switch.

Examples

This is an example of output from the show storm-control command when no keywords are entered. Because no traffic type keyword was entered, the broadcast storm control settings are displayed.

Switch# show storm-control
Interface  Filter State   Upper    Lower    Current
---------  -------------  -------  -------  -------
Gi2/1      Forwarding      30.00%   30.00%      N/A
Gi4/1      Forwarding      30.00%   30.00%      N/A
Gi4/3      Forwarding      30.00%   30.00%      N/A

This is an example of output from the show storm-control command for a specified interface. Because no traffic type keyword was entered, the broadcast storm control settings are displayed.

Switch# show storm-control fastethernet2/17
Interface  Filter State   Level    Current
---------  -------------  -------  -------
Fa2/17     Forwarding      50.00%    0.00%

This is an example of output from the show storm-control command for a specified interface and traffic type, where no storm control threshold has been set for that traffic type on the specified interface.

Switch# show storm-control gigabitethernet2/1 broadcast
Interface  Filter State   Level    Current
---------  -------------  -------  -------
Gi2/1      forwarding     100.00%  N/A
<output truncated>

Table 2-18 describes the fields in the show storm-control display.

Table 2-18 show storm-control Field Descriptions 

Field
Description

Interface

Displays the ID of the interface.

Filter State

Displays the status of the filter:

Blocking—Storm control is enabled, and a storm has occurred.

Forwarding—Storm control is enabled, and no storms have occurred.

Inactive—Storm control is disabled.

Level

Displays the threshold level set on the interface for broadcast traffic.

Current

Displays the bandwidth utilization of broadcast traffic as a percentage of total available bandwidth. This field is only valid when storm control is enabled.

Note N/A is displayed for interfaces that do storm control in hardware.


Related Commands

storm-control
show interfaces counters
show running-config

show system mtu

To display the global MTU setting, use the show system mtu command.

show system mtu

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display the global MTU setting:

Switch# show system mtu
Global Ethernet MTU is 1550 bytes.
Switch# 

Related Commands

system mtu

show tech-support

To display troubleshooting information for TAC, use the show tech-support command.

show tech-support [bridging | cef | ipmulticast | isis | password [page] | page]

Syntax Description

bridging

(Optional) Specifies bridging-related information.

cef

(Optional) Specifies CEF-related information.

ipmulticast

(Optional) Specifies IP multicast-related information.

isis

(Optional) Specifies CLNS and ISIS-related information.

password

(Optional) Includes passwords and other security information in the output.

page

(Optional) Displays one page of information at a time in the output.


Defaults

The defaults are as follows:

Outputs are displayed without page breaks.

Passwords and other security information are removed from the output.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

Press the Return key to display the next line of output, or press the Space bar to display the next page of information. If you do not enter the page keyword, the output scrolls. It does not stop for page breaks.

If you enter the password keyword, password encryption is enabled, but only the encrypted form appears in the output.

If you do not enter the password keyword, passwords and other security-sensitive information in the output are replaced in the output with the word "removed."

The show tech-support commands are a compilation of several show commands and the output can be quite lengthy. For a sample display of the output of the show tech-support command, see the individual show command listed.

If you enter the show tech-support command without arguments, the output displays the equivalent of these show commands:

show version

show running-config

show stacks

show interfaces

show controllers

show process memory

show process cpu

show buffers

show logging

show module

show power

show environment

show interfaces switchport

show interfaces trunk

show vlan

If you enter the ipmulticast keyword, the output displays the equivalent of these show commands:

show ip pim interface

show ip pim interface count

show ip pim neighbor

show ip pim rp

show ip igmp groups

show ip igmp interface

show ip mroute count

show ip mroute

show ip mcache

show ip dvmrp route

Examples

For a sample display of the show tech-support command output, see the commands listed in "Usage Guidelines" for more information.

Related Commands

See "Usage Guidelines."

show udld

To display the administrative and operational UDLD status, use the show udld command.

show udld interface-id

Syntax Description

interface-id

Name of the interface.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

If you do not enter an interface ID value, administrative and operational UDLD status for all interfaces is displayed.

Examples

This example shows how to display the UDLD state for a single interface:

Switch# show udld GigabitEthernet2/2
Interface Gi2/2
---
Port enable administrative configuration setting: Follows device default
Port enable operational state: Enabled
Current bidirectional state: Bidirectional
Current operational state: Advertisement
Message interval: 60
Time out interval: 5
No multiple neighbors detected
    Entry 1
    ---
    Expiration time: 146
    Device ID: 1
    Current neighbor state: Bidirectional
    Device name: 0050e2826000  
    Port ID: 2/1  
    Neighbor echo 1 device: SAD03160954
    Neighbor echo 1 port: Gi1/1
    Message interval: 5
    CDP Device name: 066527791  
Switch# 

Related Commands

udld (global configuration mode)
udld (interface configuration mode)

show vlan

To display VLAN information, use the show vlan command.

show vlan [brief | id vlan_id | name name]

show vlan private-vlan [type]

Syntax Description

brief

(Optional) Displays only a single line for each VLAN, naming the VLAN, status, and ports.

id vlan_id

(Optional) Displays information about a single VLAN identified by VLAN ID number; valid values are from 1 to 4094.

name name

(Optional) Displays information about a single VLAN identified by VLAN name; valid values are an ASCII string from 1 to 32 characters.

private-vlan

Displays private VLAN information.

type

(Optional) Private VLAN type.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.1(12c)EW

Added support for extended VLAN addresses.


Examples

This example shows how to display the VLAN parameters for all VLANs within the administrative domain:

Switch# show vlan
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa5/9
2    VLAN0002                         active    Fa5/9
3    VLAN0003                         active    Fa5/9
4    VLAN0004                         active    Fa5/9
5    VLAN0005                         active    Fa5/9
6    VLAN0006                         active    Fa5/9
10   VLAN0010                         active    Fa5/9
20   VLAN0020                         active    Fa5/9

<...Output truncated...> 

850  VLAN0850                         active    Fa5/9
917  VLAN0917                         active    Fa5/9
999  VLAN0999                         active    Fa5/9
1002 fddi-default                     active    Fa5/9
1003 trcrf-default                    active    Fa5/9
1004 fddinet-default                  active    Fa5/9
1005 trbrf-default                    active    Fa5/9

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0
2    enet  100002     1500  -      -      -        -    -        0      0
3    enet  100003     1500  -      -      -        -    -        303    0
4    enet  100004     1500  -      -      -        -    -        304    0
5    enet  100005     1500  -      -      -        -    -        305    0
6    enet  100006     1500  -      -      -        -    -        0      0
10   enet  100010     1500  -      -      -        -    -        0      0
20   enet  100020     1500  -      -      -        -    -        0      0
50   enet  100050     1500  -      -      -        -    -        0      0

<...Output truncated...> 

850  enet  100850     1500  -      -      -        -    -        0      0
917  enet  100917     1500  -      -      -        -    -        0      0
999  enet  100999     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      0      -        -    -        0      0
1003 trcrf 101003     4472  1005   3276   -        -    srb      0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trbrf 101005     4472  -      -      15       ibm  -        0      0

VLAN AREHops STEHops Backup CRF
---- ------- ------- ----------
802  0       0       off
1003 7       7       off                                                       
Switch# 

This example shows how to display the VLAN name, status, and associated ports only:

Switch# show vlan brief
VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Fa5/9
2    VLAN0002                         active    Fa5/9
3    VLAN0003                         active    Fa5/9
4    VLAN0004                         active    Fa5/9
5    VLAN0005                         active    Fa5/9
10   VLAN0010                         active    Fa5/9
.
.
.
999  VLAN0999                         active    Fa5/9
1002 fddi-default                     active    Fa5/9
1003 trcrf-default                    active    Fa5/9
1004 fddinet-default                  active    Fa5/9
1005 trbrf-default                    active    Fa5/9
Switch# 

This example shows how to display the VLAN parameters for VLAN 3 only:

Switch# show vlan id 3

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
3    VLAN0003                         active    Fa5/9

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
3    enet  100003     1500  -      -      -        -    -        303    0     

Table 2-19 describes the fields in the show vlan command output.

Table 2-19 show vlan Command Output Fields 

Field
Description

VLAN

VLAN number.

Name

Name, if configured, of the VLAN.

Status

Status of the VLAN (active or suspend).

Ports

Ports that belong to the VLAN.

Type

Media type of the VLAN.

SAID

Security Association Identifier value for the VLAN.

MTU

Maximum transmission unit size for the VLAN.

Parent

Parent VLAN, if one exists.

RingNo

Ring number for the VLAN, if applicable.

BrdgNo

Bridge number for the VLAN, if applicable.

Stp

Spanning Tree Protocol type used on the VLAN.


Related Commands

vlan database
vlan (VLAN Database mode)
vtp (global configuration mode)

show vlan access-map

To display the contents of a VLAN access map, use the show vlan access-map command.

show vlan access-map [map-name]

Syntax Description

map-name

(Optional) Name of the VLAN access map.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12c)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This command shows how to display the contents of a VLAN access map:

Switch# show vlan access-map mordred 
Vlan access-map "mordred"  1
        match: ip address 13
        action: forward capture
Switch# 

Related Commands

vlan access-map

show vlan counters

To display software-cached counter values, use the show vlan counters command.

show vlan [id vlanid] counters

Syntax Description

id vlanid

(Optional) Displays the software-cached counter values for a specific VLAN.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switches.


Usage Guidelines

If you enter the show vlan counters command without specifying the VLAN ID, software-cached counter values for all VLANs are displayed.

Examples

This example shows how to display the software-cached counter values for a specific VLAN:

Switch# show vlan counters
* Multicast counters include broadcast packets

Vlan Id                                            : 1
L2 Unicast Packets                                 : 0
L2 Unicast Octets                                  : 0
L3 Input Unicast Packets                           : 0
L3 Input Unicast Octets                            : 0
L3 Output Unicast Packets                          : 0
L3 Output Unicast Octets                           : 0
L3 Output Multicast Packets                        : 0
L3 Output Multicast Octets                         : 0
L3 Input Multicast Packets                         : 0
L3 Input Multicast Octets                          : 0
L2 Multicast Packets                               : 1
L2 Multicast Octets                                : 94
Switch> 

Related Commands

clear vlan counters

show vlan dot1q tag native

To display all the ports on the switch that are eligible for native VLAN tagging as well as their current native VLAN tagging status, use the show vlan dot1q tag native command.

show vlan dot1q tag native

Syntax Description

This command has no arguments or keywords.

Command Modes

User EXEC

Command History

Release
Modification

12.1(18)EW

This command was introduced on the Catalyst 4500 series switch.


Examples

This is an example of output from the show vlan dot1q tag native command:

Switch# show vlan dot1q tag native
dot1q native vlan tagging is disabled globally

Per Port Native Vlan Tagging State
----------------------------------


Port    Operational    Native VLAN    
            Mode       Tagging State
------------------------------------

f3/2    trunk          enabled
f3/16   PVLAN trunk    disabled
f3/16   trunk          enabled

Related Commands

switchport mode
vlan (global configuration) (refer to Cisco IOS documentation)
vlan (VLAN configuration) (refer to Cisco IOS documentation)

show vlan internal usage

Use the show vlan internal usage command to display information about the internal VLAN allocation.

show vlan [id vlan-id] internal usage

Syntax Description

id vlan-id

(Optional) Displays internal VLAN allocation information for the specified VLAN; valid values are from 1 to 4094.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(19)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

Entering the show vlan internal usage command displays the OSM interfaces and subinterfaces in addition to the regular Ethernet interfaces.

Examples

This example shows how to display information about the current internal VLAN allocation:

Switch# show vlan internal usage 

VLAN Usage
---- --------------------
1025 -
1026 -
1027 -
1028 -
1029 Port-channel6
1030 GigabitEthernet1/2
1032 FastEthernet3/20
1033 FastEthernet3/21
1129 -

This example shows how to display information about the internal VLAN allocation for a specific VLAN:

Switch# show vlan id 1030 internal usage 

VLAN Usage
---- --------------------
1030 GigabitEthernet1/2

Related Commands

vlan internal allocation policy

show vlan mtu

To display the minimum and maximum transmission unit (MTU) sizes of each VLAN, use the show vlan mtu command.

show vlan mtu

Syntax Description

This command has no arguments or keywords

Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Usage Guidelines

The MTU_Mismatch column in the command output indicates whether all the ports in the VLAN have the same MTU. When "yes" is displayed in the MTU_Mismatch column, it means that the VLAN has a port with different MTUs, and packets might be dropped that are switched from a port with a larger MTU to a port with a smaller MTU. If the VLAN does not have an SVI, the hyphen (-) symbol is displayed in the SVI_MTU column.

For a VLAN, if the MTU-Mismatch column displays yes, the names of the port with the MinMTU and the port with the MaxMTU are displayed. For a VLAN, if the SVI_MTU is bigger than the MinMTU, "TooBig" is displayed after the SVI_MTU.

Examples

This is an example of output from the show vlan mtu command:

Switch# show vlan mtu

VLAN    SVI_MTU    MinMTU(port)   MaxMTU(port)  MTU_Mismatch
---- ------------- -------------  ------------  ------------
1    1500          1500           1500           No
Switch> 

Related Commands

mtu

show vlan private-vlan

To display private VLAN information, use the show vlan private-vlan command.

show vlan private-vlan [type]

Syntax Description

type

(Optional) Displays the private VLAN type; valid types are isolated, primary, community, nonoperational, and normal.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.

12.2(20)EW

Support for community VLAN was added.


Usage Guidelines

When the show vlan private-vlan type command displays a VLAN type as normal, it indicates that a regular VLAN has been used in the private VLAN configuration. When normal is displayed, this indicates that two VLANs have been associated before the type was set, and the private VLAN is not operational. This information is useful for debugging purposes.

Examples

This example shows how to display information about all currently configured private VLANs:

Switch# show vlan private-vlan

Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------
2       301       community         Fa5/3, Fa5/25
2       302       community
        10        community
100     101       isolated
150     151       non-operational
        202       community
        303       community
401     402       non-operational
Switch#

Note A blank Primary value indicates that no association exists.


This example shows how to display information about all currently configured private VLAN types:

Switch# show vlan private-vlan type

Vlan Type
---- -----------------
202  primary
303  community
304  community
305  community
306  community
307  community
308  normal
309  community
440  isolated
Switch#

Table 2-20 describes the fields in the show vlan private-vlan command output.

Table 2-20 show vlan private-vlan Command Output Fields 

Field
Description

Primary

Number of the primary VLAN.

Secondary

Number of the secondary VLAN.

Secondary-Type

Secondary VLAN type is isolated or community.

Ports

Indicates the ports within a VLAN.

Type

Type of VLAN; possible values are primary, isolated, community, nonoperational, or normal.


Related Commands

private-vlan
private-vlan mapping

show vlan remote-span

To display a list of Remote SPAN (RSPAN) VLANs, use the show vlan remote-span command.

show vlan remote-span

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(12)EW

This command was introduced on the Catalyst 4500 series switches.


Examples

This example shows how to display a list of RSPAN VLANs:

Router# show vlan remote-span
Remote SPAN VLANs
------------------------------------------------------------------------------
2,20

Related Commands

remote-span
vlan (VLAN Database mode)

show vmps

To display the VLAN Query Protocol (VQP) version, reconfirmation interval, retry count, VLAN Membership Policy Server (VMPS) IP addresses, current servers, and primary servers, use the show vmps command.

show vmps [statistics]

Syntax Description

statistics

(Optional) Displays the client side statistics.


Defaults

This command has no default settings.

Command Modes

EXEC

Command History

Release
Modification

12.1(13)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This is an example of output from the show vmps command:

Switch# show vmps
VQP Client Status:
--------------------
VMPS VQP Version:   1
Reconfirm Interval: 60 min
Server Retry Count: 3
VMPS domain server: 172.20.50.120 (primary, current)

Reconfirmation status
---------------------
VMPS Action:         No Dynamic Port
Switch# 

This is an example of output from the show vmps statistics command:

Switch# show vmps statistics
VMPS Client Statistics
----------------------
VQP  Queries:               0
VQP  Responses:             0
VMPS Changes:               0
VQP  Shutdowns:             0
VQP  Denied:                0
VQP  Wrong Domain:          0
VQP  Wrong Version:         0
VQP  Insufficient Resource: 0
Switch# 

Related Commands

vmps reconfirm (privileged EXEC)

show vtp

To display VTP statistics and domain information, use the show vtp command.

show vtp {counters | status}

Syntax Description

counters

Specifies VTP statistics.

status

Specifies VTP domain status.


Defaults

This command has no default settings.

Command Modes

Privileged EXEC

Command History

Release
Modification

12.1(8a)EW

Support for this command was introduced on the Catalyst 4500 series switch.


Examples

This example shows how to display VTP statistics:

Switch# show vtp counters
VTP statistics:
Summary advertisements received    : 1
Subset advertisements received     : 1
Request advertisements received    : 0
Summary advertisements transmitted : 31
Subset advertisements transmitted  : 1
Request advertisements transmitted : 0
Number of config revision errors   : 0
Number of config digest errors     : 0
Number of V1 summary errors        : 0

VTP pruning statistics:

Trunk            Join Transmitted Join Received    Summary advts received from
                                                   non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Fa5/9               1555             1564             0                       
Switch# 

This example shows how to display the VTP domain status:

Switch# show vtp status
VTP Version                     : 2
Configuration Revision          : 250
Maximum VLANs supported locally : 1005
Number of existing VLANs        : 33
VTP Operating Mode              : Server
VTP Domain Name                 : Lab_Network
VTP Pruning Mode                : Enabled
VTP V2 Mode                     : Enabled
VTP Traps Generation            : Disabled
MD5 digest                      : 0xE6 0xF8 0x3E 0xDD 0xA4 0xF5 0xC2 0x0E
Configuration last modified by 172.20.52.18 at 9-22-99 11:18:20
Local updater ID is 172.20.52.18 on interface Vl1 (lowest numbered VLAN interfac
e found)                                                                       
Switch# 

This example shows how to display only those lines in the show vtp output that contain the word Summary:

Switch# show vtp counters | include Summary
Summary advertisements received    : 1
Summary advertisements transmitted : 32
Trunk            Join Transmitted Join Received    Summary advts received from
Switch#     

Table 2-21 describes the fields in the show vtp command output.

Table 2-21 show vtp Command Output Fields 

Field
Description

Summary advertisements received

Total number of summary advertisements received.

Subset advertisements received

Total number of subset advertisements received.

Request advertisements received

Total number of request advertisements received.

Summary advertisements transmitted

Total number of summary advertisements transmitted.

Subset advertisements transmitted

Total number of subset advertisements transmitted.

Request adv