- Index
- Quick Links to Catalyst 4500 Series Switch Cisco IOS Commands
- Preface
- Command-Line Interface
- aaa accounting dot1x default start-stop group radius through instance
- interface port-channel through shape
- show access-group mode interface through show vtp
- snmp ifindex clear through vtp v2-mode
- Acronyms
- Acknowledgements for Open-Source Software
- 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
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
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
A summary of the test results for all modules in the chassis is displayed.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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.
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#
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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.
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
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 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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
If no argument is specified the switch will display the entire DHCP snooping binding table.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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.
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
|
|
|
|---|---|
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
Defaults
If you do not specify a VLAN, information for VLAN 1 is shown.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
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
Defaults
This command has no default settings.
Command Modes
EXEC
Command History
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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.
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
Defaults
Displays both static and DHCP snooping bindings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Command Modes
User EXEC
Command History
|
|
|
|---|---|
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 enter | exclude output, the lines that contain output do not appear, but the lines that contain Output appear.
Examples
This is an example of output from the show 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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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.
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
The detail keyword only displays lines with a nondefault configuration.
Command Modes
Privileged EXEC
Command History
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
show pagp
To display port channel information, use the show pagp command.
show pagp [group-number] {counters | internal | neighbor}
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
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
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
EXEC
Command History
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
EXEC
Command History
|
|
|
|---|---|
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
Defaults
Interface information summary is displayed.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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
|
|
|
|---|---|
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.
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
|
|
|
|---|---|
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
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC
Command History
|
|
|
|---|---|
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.
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
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
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
|
|
|
|---|---|
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
|
|
|
|---|---|
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
|
|
|
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
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
|
|
|
|---|---|
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.
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
|
|
|
|---|---|
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
|
|
|
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
|
|
|
|---|---|
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.
Related Commands
vtp (global configuration mode)
vtp client
vtp domain
vtp password
vtp pruning
vtp server
vtp transparent
vtp v2-mode
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