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Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(46)SG
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Quick Links to Catalyst 4500 Series Switch Cisco IOS Commands
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Index
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Preface
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Command-Line Interface
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aaa accounting dot1x default start-stop group radius through instance
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interface port-channel through shape
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show access-group mode interface through show vtp
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snmp ifindex clear through vtp v2-mode
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Acronyms and Abbreviations
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Table Of Contents
show access-group mode interface
show diagnostic result module test
show diagnostic result module test 2
show diagnostic result module test 3
show interfaces private-vlan mapping
show ip dhcp snooping database
show ip igmp snooping membership
show ipv6 mld snooping mrouter
show ipv6 mld snooping querier
show mac access-group interface
show mac-address-table address
show mac-address-table aging-time
show mac-address-table dynamic
show mac-address-table interface
show mac-address-table multicast
show mac-address-table notification
show mac-address-table protocol
show policy-map interface vlan
show access-group mode interface
To display the ACL configuration on a Layer 2 interface, use the show access-group mode interface command.
show access-group mode interface [interface interface-number]
Syntax Description
interface
(Optional) Interface type; valid values are ethernet, fastethernet, gigabitethernet, tengigabitethernet, and port-channel.
interface-number
(Optional) Interface number.
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
Usage Guidelines
The valid values for the port number depend on the chassis used.
Examples
This example shows how to display the ACL configuration on the Fast Ethernet interface 6/1:
Switch# show access-group mode interface fa6/1Interface FastEthernet6/1:Access group mode is: mergeSwitch#Related Commands
Specifies the override modes (for example, VACL overrides PACL) and the non-override modes (for example, merge or strict mode).
show adjacency
To display information about the Layer 3 switching adjacency table, use the show adjacency command.
show adjacency [{interface interface-number} | {null interface-number} | {port-channel number} | {vlan vlan-id} | detail | internal | summary]
Syntax Description
Defaults
This command has no default settings.
Command Modes
EXEC
Command History
Usage Guidelines
The interface-number argument designates the module and port number. Valid values for interface-number depend on the specified interface type and the chassis and module that are used. For example, if you specify a Gigabit Ethernet interface and have a 48-port 10/100BASE-T Ethernet module that is installed in a 13-slot chassis, valid values for the module number are from 1 to 13, and valid values for the port number are from 1 to 48.
Hardware Layer 3 switching adjacency statistics are updated every 60 seconds.
The following information is contained in the show adjacency command:
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Protocol interface.
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Examples
This example shows how to display adjacency information:
Switch# show adjacencyProtocol Interface AddressIP FastEthernet2/3 172.20.52.1(3045)IP FastEthernet2/3 172.20.52.22(11)Switch#This example shows how to display a summary of adjacency information:
Switch# show adjacency summaryAdjacency Table has 2 adjacenciesInterface Adjacency CountFastEthernet2/3 2Switch#This example shows how to display protocol detail and timer information:
Switch# show adjacency detailProtocol Interface AddressIP FastEthernet2/3 172.20.52.1(3045)0 packets, 0 bytes000000000FF9200003800000000000000000000000000000000000000000000000605C865B2800D0BB0F980B0800ARP 03:58:12IP FastEthernet2/3 172.20.52.22(11)0 packets, 0 bytes000000000FF9200003800000000000000000000000000000000000000000000000801C93804000D0BB0F980B0800ARP 03:58:06Switch#This example shows how to display adjacency information for a specific interface:
Switch# show adjacency fastethernet2/3Protocol Interface AddressIP FastEthernet2/3 172.20.52.1(3045)IP FastEthernet2/3 172.20.52.22(11)Switch#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-listARP access list rosepermit ip 10.101.1.1 0.0.0.255 mac anypermit ip 20.3.1.0 0.0.0.255 mac anyRelated Commands
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 mode
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 statusStatus : Downloading config fileDHCP Server : 20.0.0.1TFTP Server : 30.0.0.3Config File Fetched : UndeterminedThe 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 mode
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 on a non-Supervisor Engine 6-E, use one of these commands:
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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 qosGigabitEthernet1/2auto qos voip cisco-phoneSwitch#Related Commands
Automatically configures quality of service (auto-QoS) for Voice over IP (VoIP) within a QoS domain.
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 = 0DEVICE INFO BLOCK: bootflashMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 1000000 Sector Size = 40000Programming Algorithm = 39 Erased State = FFFFFFFFFile System Offset = 40000 Length = F40000MONLIB Offset = 100 Length = C628Bad Sector Map Offset = 3FFF8 Length = 8Squeeze Log Offset = F80000 Length = 40000Squeeze Buffer Offset = FC0000 Length = 40000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsNo Squeeze in progressUSAGE INFO:Bytes Used = 917CE8 Bytes Available = 628318Bad Sectors = 0 Spared Sectors = 0OK Files = 2 Bytes = 917BE8Deleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0Switch>This example shows how to display system image information:
Switch> show bootflash:-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. image 8C5A393A 237E3C 14 2063804 Aug 23 1999 16:18:45 c4-boot-mz2 .. image D86EE0AD 957CE8 9 7470636 Sep 20 1999 13:48:49 rp.halleySwitch>This example shows how to display all bootflash information:
Switch> show bootflash: all-# - ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. image 8C5A393A 237E3C 14 2063804 Aug 23 1999 16:18:45 c4-boot-mz2 .. image D86EE0AD 957CE8 9 7470636 Sep 20 1999 13:48:49 rp.halley6456088 bytes available (9534696 bytes used)-------- F I L E S Y S T E M S T A T U S --------Device Number = 0DEVICE INFO BLOCK: bootflashMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 1000000 Sector Size = 40000Programming Algorithm = 39 Erased State = FFFFFFFFFile System Offset = 40000 Length = F40000MONLIB Offset = 100 Length = C628Bad Sector Map Offset = 3FFF8 Length = 8Squeeze Log Offset = F80000 Length = 40000Squeeze Buffer Offset = FC0000 Length = 40000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsNo Squeeze in progressUSAGE INFO:Bytes Used = 917CE8 Bytes Available = 628318Bad Sectors = 0 Spared Sectors = 0OK Files = 2 Bytes = 917BE8Deleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0Switch>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 mode
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 bootvarBOOT variable = sup:1;CONFIG_FILE variable does not existBOOTLDR variable does not existConfiguration register is 0x0Switch#show cable-diagnostics tdr
To display the test results for the TDR cable diagnostics, use the show cable-diagnostics tdr command.
show cable-diagnostics tdr {interface {interface interface-number}}
Note
Syntax Description
interface interface
Interface type; valid values are fastethernet and gigabitethernet.
interface-number
Module and port number.
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
12.2(25)SG
Support for this command was introduced on the Catalyst 4500 series switch.
Usage Guidelines
The TDR test is supported on Catalyst 4500 series switches running Cisco IOS Release 12.2(25)SG for the following line cards only:
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The distance to the fault is displayed in meters (m).
Examples
This example shows how to display information about the TDR test:
Switch# show cable-diagnostics tdr interface gi4/13Interface Speed Local pair Cable length Remote channel StatusGi4/13 0Mbps 1-2 102 +-2m Unknown Fault3-6 100 +-2m Unknown Fault4-5 102 +-2m Unknown Fault7-8 102 +-2m Unknown FaultSwitch#Table 2-13 describes the fields in the show cable-diagnostics tdr command output.
Related Commands
show cdp neighbors
To display detailed information about the neighboring devices that are discovered through CDP, use the show cdp neighbors command.
show cdp neighbors [type number] [detail]
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
Usage Guidelines
The vlan keyword is supported in Catalyst 4500 series switches that are configured with a Supervisor Engine 2.
The port-channel values are from 0 to 282; values from 257 to 282 are supported on the CSM and the FWSM only.
Examples
This example shows how to display the information about the CDP neighbors:
Switch# show cdp neighborsCapability Codes: R - Router, T - Trans Bridge, B - Source Route BridgeS - Switch, H - Host, I - IGMP, r - Repeater, P - PhoneDevice ID Local Intrfce Holdtme Capability Platform Port IDlab-7206 Eth 0 157 R 7206VXR Fas 0/0/0lab-as5300-1 Eth 0 163 R AS5300 Fas 0lab-as5300-2 Eth 0 159 R AS5300 Eth 0lab-as5300-3 Eth 0 122 R AS5300 Eth 0lab-as5300-4 Eth 0 132 R AS5300 Fas 0/0lab-3621 Eth 0 140 R S 3631-telcoFas 0/0008024 2758E0 Eth 0 132 T CAT3000 1/2Switch#Table 2-14 describes the fields that are shown in the example.
This example shows how to display detailed information about your CDP neighbors:
Switch# show cdp neighbors detail-------------------------Device ID: lab-7206Entry address(es):IP address: 172.19.169.83Platform: cisco 7206VXR, Capabilities: RouterInterface: Ethernet0, Port ID (outgoing port): FastEthernet0/0/0Holdtime : 123 secVersion :Cisco Internetwork Operating System SoftwareIOS (tm) 5800 Software (C5800-P4-M), Version 12.1(2)Copyright (c) 1986-2002 by Cisco Systems, Inc.advertisement version: 2Duplex: half-------------------------Device ID: lab-as5300-1Entry address(es):IP address: 172.19.169.87...Switch#Table 2-15 describes the fields that are shown in the example.
Related Commands
show class-map
To display class map information, use the show class-map command.
show class-map class_name
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
12.1(8a)EW
Support for this command was introduced on the Catalyst 4500 series switch.
12.2(25)SG
Displays results from the full flow option.
Examples
This example shows how to display class map information for all class maps:
Switch# show class-mapClass Map match-any class-default (id 0)Match anyClass Map match-any class-simple (id 2)Match anyClass Map match-all ipp5 (id 1)Match ip precedence 5Class 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 ipp5Class Map match-all ipp5 (id 1)Match ip precedence 5Switch#Assume there are two active flows as shown below on Fast Ethernet interface 6/1:
SrcIp DstIp IpProt SrcL4Port DstL4Port--------------------------------------------------------192.168.10.10 192.168.20.20 20 6789 81192.168.10.10 192.168.20.20 20 6789 21With following configuration, each flow will be policed to a 1000000 bps with an allowed 9000-byte burst value.
Note
Switch# config terminalEnter configuration commands, one per line. End with CNTL/Z.Switch(config)# class-map c1Switch(config-cmap)# match flow ip source-address ip destination-address ip protocol l4 source-port l4 destination-portSwitch(config-cmap)# exitSwitch(config)# policy-map p1Switch(config-pmap)# class c1Switch(config-pmap-c)# police 1000000 9000Switch(config-pmap-c)# exitSwitch(config-pmap)# exitSwitch(config)# interface fastEthernet 6/1Switch(config-if)# service-policy input p1Switch(config-if)# endSwitch# write memorySwitch# show policy-map interfaceFastEthernet6/1class-map c1match flow ip source-address ip destination-address ip protocol l4 source-port l4 destination-port!policy-map p1class c1police 1000000 bps 9000 byte conform-action transmit exceed-action drop!interface FastEthernet 6/1service-policy input p1Switch# show class-map c1Class Map match-all c1 (id 2)Match flow ip source-address ip destination-address ip protocol l4 source-port l4 destination-portSwitch#Related Commands
show diagnostic content
To display test information about the test ID, test attributes, and supported coverage test levels for each test and for all modules, use the show diagnostic content command.
show diagnostic content module {all | num}
Syntax Description
Defaults
This command has no default settings.
Command Modes
EXEC
Command History
12.2(20)EWA
Support for this command was introduced on the Catalyst 4500 series switch.
Examples
This example shows how to display the test suite, monitoring interval, and test attributes for all the modules of the chassis:
Switch# show diagnostic content module allmodule 1:Diagnostics test suite attributes:B/* - Basic ondemand test / NAP/V/* - Per port test / Per device test / NAD/N/* - Disruptive test / Non-disruptive test / NAS/* - Only applicable to standby unit / NAX/* - Not a health monitoring test / NAF/* - Fixed monitoring interval test / NAE/* - Always enabled monitoring test / NAA/I - Monitoring is active / Monitoring is inactivem/* - Mandatory bootup test, can't be bypassed / NAo/* - Ongoing test, always active / NATesting IntervalID Test Name Attributes (day hh:mm:ss.ms)==== ========================================== ============ =================1) supervisor-bootup -----------------------> **D****I** not configured2) packet-memory-bootup --------------------> **D****I** not configured3) packet-memory-ongoing -------------------> **N****I*o not configuredmodule 6:Diagnostics test suite attributes:B/* - Basic ondemand test / NAP/V/* - Per port test / Per device test / NAD/N/* - Disruptive test / Non-disruptive test / NAS/* - Only applicable to standby unit / NAX/* - Not a health monitoring test / NAF/* - Fixed monitoring interval test / NAE/* - Always enabled monitoring test / NAA/I - Monitoring is active / Monitoring is inactivem/* - Mandatory bootup test, can't be bypassed / NAo/* - Ongoing test, always active / NATesting IntervalID Test Name Attributes (day hh:mm:ss.ms)==== ========================================== ============ =================1) linecard-online-diag --------------------> **D****I** not configuredSwitch#Related Commands
Displays the module-based diagnostic test results.
Displays the results of the bootup packet memory test.
Displays the results from the ongoing packet memory test.
show diagnostic result module
To display the 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 mode
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 moduleCurrent bootup diagnostic level: minimalmodule 1:Overall diagnostic result: PASSDiagnostic level at card bootup: bypassTest results: (. = Pass, F = Fail, U = Untested)1) supervisor-bootup -----------------------> U2) packet-memory-bootup --------------------> U3) packet-memory-ongoing -------------------> Umodule 4:Overall diagnostic result: PASSDiagnostic level at card bootup: minimalTest results: (. = Pass, F = Fail, U = Untested)1) linecard-online-diag --------------------> .module 5:Overall diagnostic result: PASSDiagnostic level at card bootup: minimalTest results: (. = Pass, F = Fail, U = Untested)1) linecard-online-diag --------------------> .module 6:Overall diagnostic result: PASSDiagnostic level at card bootup: minimalTest results: (. = Pass, F = Fail, U = Untested)1) linecard-online-diag --------------------> .This example shows how to display the online diagnostics for module 1:
Switch# show diagnostic result module 1 detailCurrent bootup diagnostic level: minimalmodule 1:Overall diagnostic result: PASSDiagnostic level at card bootup: minimalTest results: (. = Pass, F = Fail, U = Untested)___________________________________________________________________________1) supervisor-bootup -----------------------> .Error code --------------------------> 0 (DIAG_SUCCESS)Total run count ---------------------> 0Last test execution time ------------> n/aFirst test failure time -------------> n/aLast test failure time --------------> n/aLast test pass time -----------------> n/aTotal failure count -----------------> 0Consecutive failure count -----------> 0Power-On-Self-Test Results for ACTIVE SupervisorPower-on-self-test for Module 1: WS-X4014Port/Test Status: (. = Pass, F = Fail)Reset Reason: PowerUp Software/UserPort 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 ---------------------> 0Last test execution time ------------> n/aFirst test failure time -------------> n/aLast test failure time --------------> n/aLast test pass time -----------------> n/aTotal failure count -----------------> 0Consecutive failure count -----------> 0packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979Number of errors found: 0Cells with hard errors (failed two or more tests): 0Cells with soft errors (failed one test, includes hard): 0Suspect bad cells (uses a block that tested bad): 0total buffers: 65536bad buffers: 0 (0.0%)good buffers: 65536 (100.0%)Bootup test results:1No errors.___________________________________________________________________________3) packet-memory-ongoing -------------------> UError code --------------------------> 0 (DIAG_SUCCESS)Total run count ---------------------> 0Last test execution time ------------> n/aFirst test failure time -------------> n/aLast test failure time --------------> n/aLast test pass time -----------------> n/aTotal failure count -----------------> 0Consecutive failure count -----------> 0packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979Packet memory errors: 0 0Current alert level: greenPer 5 seconds in the last minute:0 0 0 0 0 0 0 0 0 00 0Per minute in the last hour:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Per hour in the last day:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0Per day in the last 30 days:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Direct memory test failures per minute in the last hour:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Potential false positives: 0 0Ignored because of rx errors: 0 0Ignored because of cdm fifo overrun: 0 0Ignored because of oir: 0 0Ignored because isl frames received: 0 0Ignored during boot: 0 0Ignored after writing hw stats: 0 0Ignored on high gigaport: 0Ongoing diag action mode: NormalLast 1000 Memory Test Failures:Last 1000 Packet Memory errors:First 1000 Packet Memory errors:___________________________________________________________________________Switch#show diagnostic result module test
To display the results of the bootup packet memory test, use the show diagnostic result module test command. The output indicates whether the test passed, failed, or was not run.
show diagnostic result module [N | all] [test test-id] [detail]
Syntax Description
Defaults
Non-detailed results
Command Modes
EXEC mode
Command History
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 6 detailmodule 6:Overall diagnostic result:PASSTest results:(. = Pass, F = Fail, U = Untested)___________________________________________________________________________1) linecard-online-diag --------------------> .Error code --------------------------> 0 (DIAG_SUCCESS)Total run count ---------------------> 1Last test execution time ------------> Jan 21 2001 19:48:30First test failure time -------------> n/aLast test failure time --------------> n/aLast test pass time -----------------> Jan 21 2001 19:48:30Total failure count -----------------> 0Consecutive failure count -----------> 0Slot Ports Card Type Diag Status Diag Details---- ----- -------------------------------------- ---------------- ------------6 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE Passed NoneDetailed Status---------------. = Pass U = UnknownL = Loopback failure S = Stub failureI = Ilc failure P = Port failureE = SEEPROM failure G = GBIC integrity check failurePorts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16. . . . . . . . . . . . . . . .Ports 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32. . . . . . . . . . . . . . . .Ports 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48. . . . . . . . . . . . . . . .___________________________________________________________________________2) online-diag-tdr:Port 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24----------------------------------------------------------------------------. U U U U U U U U U U U U U U U U U U U U U U UPort 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48----------------------------------------------------------------------------U U U U U U U U U U U U U U U U U U U U U U U UError code --------------------------> 0 (DIAG_SUCCESS)Total run count ---------------------> 1Last test execution time ------------> Jan 22 2001 03:01:54First test failure time -------------> n/aLast test failure time --------------> n/aLast test pass time -----------------> Jan 22 2001 03:01:54Total failure count -----------------> 0Consecutive failure count -----------> 0Detailed Status---------------TDR test is in progress on interface Gi6/1___________________________________________________________________________Switch#Related Commands
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
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 2Test 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 detailTest results: (. = Pass, F = Fail, U = Untested)___________________________________________________________________________2) packet-memory-bootup ------------> .Error code ------------------> 0 (DIAG_SUCCESS)Total run count -------------> 0Last test execution time ----> n/aFirst test failure time -----> n/aLast test failure time ------> n/aLast test pass time ---------> n/aTotal failure count ---------> 0Consecutive failure count ---> 0packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979Number of errors found: 0Cells with hard errors (failed two or more tests): 0Cells with soft errors (failed one test, includes hard): 0Suspect bad cells (uses a block that tested bad): 0total buffers: 65536bad buffers: 0 (0.0%)good buffers: 65536 (100.0%)Bootup test results:No errors.Related Commands
Directs the action of the switch when it detects a packet memory failure.
Displays the results from the ongoing packet memory test.
show diagnostic result module test 3
To display the 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
Defaults
Non-detailed results
Command Modes
EXEC mode
Command History
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 from the ongoing packet memory tests:
Switch# show diagnostic result module 1 test 3Test results: (. = Pass, F = Fail, U = Untested)3) packet-memory-ongoing -----------> .This example shows how to display the detailed results from the ongoing packet memory tests:
Switch# show diagnostic result module 1 test 3 detailTest results: (. = Pass, F = Fail, U = Untested)___________________________________________________________________________3) packet-memory-ongoing -----------> .Error code ------------------> 0 (DIAG_SUCCESS)Total run count -------------> 0Last test execution time ----> n/aFirst test failure time -----> n/aLast test failure time ------> n/aLast test pass time ---------> n/aTotal failure count ---------> 0Consecutive failure count ---> 0packet buffers on free list: 64557 bad: 0 used for ongoing tests: 979Packet memory errors: 0 0Current alert level: greenPer 5 seconds in the last minute:0 0 0 0 0 0 0 0 0 00 0Per minute in the last hour:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Per hour in the last day:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0Per day in the last 30 days:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Direct memory test failures per minute in the last hour:0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0Potential false positives: 0 0Ignored because of rx errors: 0 0Ignored because of cdm fifo overrun: 0 0Ignored because of oir: 0 0Ignored because isl frames received: 0 0Ignored during boot: 0 0Ignored after writing hw stats: 0 0Ignored on high gigaport: 0Ongoing diag action mode: NormalLast 1000 Memory Test Failures: vLast 1000 Packet Memory errors:First 1000 Packet Memory errors:Related Commands
Directs the action of the switch when it detects a packet memory failure.
Displays the results of the bootup packet memory test.
show dot1x
To display the 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 mode
Command History
Usage Guidelines
If you do not specify an interface, the global parameters and a summary are displayed. If you specify an interface, the details for that interface are displayed.
If you enter the statistics keyword without the interface option, the statistics are displayed for all interfaces. If you enter the statistics keyword with the interface option, the 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.
The show dot1x command displays the currently assigned reauthentication timer and time remaining before reauthentication, if reauthentication is enabled.
Examples
This example shows how to display the output from the show dot1x command:
Switch# show dot1xSysauthcontrol = DisabledDot1x Protocol Version = 2Dot1x Oper Controlled Directions = BothDot1x Admin Controlled Directions = BothCritical Recovery Delay = 500Critical EAP = EnabledSwitch#This example shows how to display the 802.1X statistics for a specific port:
Switch# show dot1x interface fastethernet6/1Dot1x Info for FastEthernet6/1-----------------------------------PAE = AUTHENTICATORPortControl = AUTOControlDirection = BothHostMode = MULTI_DOMAINReAuthentication = DisabledQuietPeriod = 60ServerTimeout = 30SuppTimeout = 30ReAuthPeriod = 3600 (Locally configured)ReAuthMax = 2MaxReq = 2TxPeriod = 30RateLimitPeriod = 0Dot1x Authenticator Client List-------------------------------Domain = DATASupplicant = 0000.0000.ab01Auth SM State = AUTHENTICATEDAuth BEND SM Stat = IDLEPort Status = AUTHORIZEDAuthentication Method = Dot1xAuthorized By = Authentication ServerVlan Policy = 12Domain = VOICESupplicant = 0060.b057.4687Auth SM State = AUTHENTICATEDAuth BEND SM Stat = IDLEPort Status = AUTHORIZEDAuthentication Method = Dot1xAuthorized By = Authentication ServerSwitch#
Note
This is an example of output from the show dot1x statistics interface gigabitethernet1/1 command. Table 2-17 describes the fields in the display.
Switch# show dot1x statistics interface gigabitethernet1/1PortStatistics Parameters for Dot1x--------------------------------------------TxReqId = 0 TxReq = 0 TxTotal = 0RxStart = 0 RxLogoff = 0 RxRespId = 0 RxResp = 0RxInvalid = 0 RxLenErr = 0 RxTotal= 0RxVersion = 0 LastRxSrcMac 0000.0000.0000Switch#
Related Commands
show environment
To display the environment alarm, operational status, and 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 mode
Command History
Examples
This example shows how to display information about the environment alarms, operational status, and current temperature readings for the chassis:
Switch# show environmentno temperature alarmsModule Sensor Temperature Status ------+--------------------------+--------------------+------------ 1 air inlet 22C (41C,56C,66C) ok 1 air outlet (back) 24C (45C,59C,69C) ok 1 air outlet (front) 22C (43C,57C,67C) ok3 air inlet 33C (51C,65C,68C) ok 3 air outlet 39C (69C,83C,86C) ok 4 air inlet 32C (51C,65C,68C) ok 4 air outlet 38C (69C,83C,86C) okPower Fan Inline Supply Model No Type Status Sensor Status ------ ---------------- --------- ----------- ------- ------- PS1 PWR-C45-1400AC AC 1400W good good n.a. PS2 none -- -- -- --Power supplies needed by system : 1 Power supplies currently available : 1Chassis Type : WS-C4507R-E Power consumed by backplane : 40 WattsSwitch Bandwidth Utilization : 0%Supervisor Led Color : GreenModule 1 Status Led Color : Green Module 2 Status Led Color : Green PoE Led Color : Off Module 3 Status Led Color : Green Module 4 Status Led Color : GreenFantray : GoodPower consumed by Fantray : 135 WattsSwitch#This example shows how to display information about the environment alarms:
Switch# show environment alarmno alarmSwitch#This example shows how to display information about the power supplies, chassis type, and fan trays:
Switch# show environment statusPower FanSupply Model No Type Status Sensor------ --------------- --------- ----------- ------PS1 PWR-C45-1400AC AC 1400W good goodPS2 none -- -- --Power Supply Max Min Max Min Absolute(Nos in Watts) Inline Inline System System Maximum-------------- ------ ------ ------ ------ --------PS1 0 0 1360 1360 1400PS2 -- -- -- -- --Power supplies needed by system : 1Chassis Type : WS-C4507RSupervisor Led Color : GreenFantray : goodPower consumed by Fantray : 50 WattsSwitch#This example shows how to display information about the chassis:
Switch# show environment status chassisChassis Type :WS-C4507RSwitch#This example shows how to display information about the fan tray:
Switch# show environment status fantrayFantray : goodPower consumed by Fantray : 50 WattsSwitch#This example shows how to display information about the power supply:
Switch# show environment status powersupplyPower FanSupply Model No Type Status Sensor------ --------------- --------- ------- ------PS1 WS-X4008 AC 400W good goodPS2 WS-X4008 AC 400W good goodPS3 none -- -- --Switch#This example shows how to display information about the supervisor engine:
Switch# show environment status supervisorSupervisor Led Color :GreenSwitch#This example shows how to display information about the temperature of the chassis:
Switch# show environment temperatureChassis Temperature = 32 degrees CelsiusChassis Over Temperature Threshold = 75 degrees CelsiusChassis Critical Temperature Threshold = 95 degrees CelsiusSwitch#show errdisable detect
To display the 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 mode
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 the error disable detection status:
Switch# show errdisable detectErrDisable Reason Detection status----------------- ----------------udld Enabledbpduguard Enabledsecurity-violatio Enabledchannel-misconfig Disabledpsecure-violation Enabledvmps Enabledpagp-flap Enableddtp-flap Enabledlink-flap Enabledl2ptguard Enabledgbic-invalid Enableddhcp-rate-limit Enabledunicast-flood Enabledstorm-control Enabledilpower Enabledarp-inspection EnabledSwitch#Related Commands
Enables error-disable detection.
Configures the recovery mechanism variables.
Displays the interface status or a list of interfaces in error-disabled state.
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 mode
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 recoveryErrDisable Reason Timer Status----------------- --------------udld Disabledbpduguard Disabledsecurity-violatio Disabledchannel-misconfig Disabledvmps Disabledpagp-flap Disableddtp-flap Disabledlink-flap Disabledl2ptguard Disabledpsecure-violation Disabledgbic-invalid Disableddhcp-rate-limit Disabledunicast-flood Disabledstorm-control Disabledarp-inspection DisabledTimer interval:30 secondsInterfaces that will be enabled at the next timeout:Interface Errdisable reason Time left(sec)--------- ----------------- --------------Fa7/32 arp-inspect 13Related Commands
Enables error-disable detection.
Configures the recovery mechanism variables.
Displays the interface status or a list of interfaces in error-disabled state.
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 mode
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-channelPort-channels in the group:----------------------Port-channel: Po1------------Age of the Port-channel = 02h:35m:26sLogical slot/port = 10/1 Number of ports in agport = 0GC = 0x00000000 HotStandBy port = nullPassive port list = Fa5/4 Fa5/5Port state = Port-channel L3-Ag Ag-Not-InusePorts in the Port-channel:Index Load Port-------------------Switch#This example shows how to display load-balancing information:
Switch# show etherchannel load-balanceSource XOR Destination mac addressSwitch#This example shows how to display a summary of information for a specific group:
Switch# show etherchannel 1 briefGroup state = L3Ports: 2 Maxports = 8port-channels: 1 Max port-channels = 1Switch#This example shows how to display detailed information for a specific group:
Switch# show etherchannel 1 detailGroup state = L3Ports: 2 Maxports = 8Port-channels: 1 Max Port-channels = 1Ports in the group:-------------------Port: Fa5/4------------Port state = EC-Enbld Down Not-in-Bndl Usr-ConfigChannel group = 1 Mode = Desirable Gcchange = 0Port-channel = null GC = 0x00000000 Psudo-agport = Po1Port indx = 0 Load = 0x00Flags: S - Device is sending Slow hello. C - Device is in Consistent state.A - Device is in Auto mode. P - Device learns on physical port.Timers: H - Hello timer is running. Q - Quit timer is running.S - Switching timer is running. I - Interface timer is running.Local information:Hello Partner PAgP Learning GroupPort Flags State Timers Interval Count Priority Method IfindexFa5/4 d U1/S1 1s 0 128 Any 0Age of the port in the current state: 02h:33m:14sPort: Fa5/5------------Port state = EC-Enbld Down Not-in-Bndl Usr-ConfigChannel group = 1 Mode = Desirable Gcchange = 0Port-channel = null GC = 0x00000000 Psudo-agport = Po1Port indx = 0 Load = 0x00Flags: S - Device is sending Slow hello. C - Device is in Consistent state.A - Device is in Auto mode. P - Device learns on physical port.Timers: H - Hello timer is running. Q - Quit timer is running.S - Switching timer is running. I - Interface timer is running.Local information:Hello Partner PAgP Learning GroupPort Flags State Timers Interval Count Priority Method IfindexFa5/5 d U1/S1 1s 0 128 Any 0Age of the port in the current state: 02h:33m:17sPort-channels in the group:----------------------Port-channel: Po1------------Age of the Port-channel = 02h:33m:52sLogical slot/port = 10/1 Number of ports in agport = 0GC = 0x00000000 HotStandBy port = nullPassive port list = Fa5/4 Fa5/5Port state = Port-channel L3-Ag Ag-Not-InusePorts in the Port-channel:Index Load Port-------------------Switch#This example shows how to display a one-line summary per channel group:
Switch# show etherchannel summaryU-in use I-in port-channel S-suspended D-down i-stand-alone d-defaultGroup 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 portChannel-group listing:-----------------------Group: 1----------Ports in the group:-------------------Port: Fa5/4------------Port state = EC-Enbld Down Not-in-Bndl Usr-ConfigChannel group = 1 Mode = Desirable Gcchange = 0Port-channel = null GC = 0x00000000 Psudo-agport = Po1Port indx = 0 Load = 0x00Flags: S - Device is sending Slow hello. C - Device is in Consistent state.A - Device is in Auto mode. P - Device learns on physical port.Timers: H - Hello timer is running. Q - Quit timer is running.S - Switching timer is running. I - Interface timer is running.Local information:Hello Partner PAgP Learning GroupPort Flags State Timers Interval Count Priority Method IfindexFa5/4 d U1/S1 1s 0 128 Any 0Age of the port in the current state: 02h:40m:35sPort: Fa5/5------------Port state = EC-Enbld Down Not-in-Bndl Usr-ConfigChannel group = 1 Mode = Desirable Gcchange = 0Port-channel = null GC = 0x00000000 Psudo-agport = Po1Port indx = 0 Load = 0x00Flags: S - Device is sending Slow hello. C - Device is in Consistent state.A - Device is in Auto mode. P - Device learns on physical port.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 protocolChannel-group listing:-----------------------Group: 12----------Protocol: PAgPGroup: 24----------Protocol: - (Mode ON)Switch#Related Commands
Assigns and configures an EtherChannel interface to an EtherChannel group.
Accesses or creates a port-channel interface.
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 mode
Command History
Usage Guidelines
Table 2-18 describes the fields in the show flowcontrol command output.
Examples
This example shows how to display the flow control status on all the Gigabit Ethernet interfaces:
Switch# show flowcontrolPort Send FlowControl Receive FlowControl RxPause TxPauseadmin oper admin oper--------- -------- -------- -------- -------- ------- -------Te1/1 off off on off 0 0Te1/2 off off on off 0 0Gi1/3 off off desired on 0 0Gi1/4 off off desired on 0 0Gi1/5 off off desired on 0 0Gi1/6 off off desired on 0 0Gi3/1 off off desired off 0 0Gi3/2 off off desired off 0 0Gi3/3 off off desired off 0 0Gi3/4 off off desired off 0 0Gi3/5 off off desired off 0 0Gi3/6 off off desired off 0 0Switch#This example shows how to display the flow control status on module 1:
Switch# show flowcontrol module 1Port Send FlowControl Receive FlowControl RxPause TxPauseadmin oper admin oper----- -------- -------- -------- -------- ------- -------Gi1/1 desired off off off 0 0Gi1/2 on disagree on on 0 0Switch#This example shows how to display the flow control status on Gigabit Ethernet interface 3/4:
Switch# show flowcontrol interface gigabitethernet3/4Port Send FlowControl Receive FlowControl RxPause TxPauseadmin oper admin oper----- -------- -------- -------- -------- ------- -------Gi3/4 off off on on 0 0Switch#This example shows how to display the flow control status on 10-Gigabit Ethernet interface 1/1:
Switch# show flowcontrol interface tengigabitethernet1/1Port Send FlowControl Receive FlowControl RxPause TxPauseadmin oper admin oper--------- -------- -------- -------- -------- ------- -------Te1/1 off off on off 0 0Switch#Related Commands
Configures a Gigabit Ethernet interface to send or receive pause frames.
Displays the interface status or a list of interfaces in error-disabled state.
show hw-module port-group
To display how the X2 holes on a module are grouped, use the show hw-module port-group command.
show hw-module module number port-group
Syntax Description
module
Specifies a line module.
number
Specifies a slot or module number.
port-group
Specifies a port-group on a switch.
Defaults
X2 mode.
Command Modes
Global configuration mode
Command History
Usage Guidelines
When a TwinGig Convertor is enabled or disabled, the number and type of ports on the linecard change dynamically. The terminology must reflect this behavior. In Cisco IOS, 10-Gigabit ports are named TenGigabit and 1-Gigabit ports are named Gigabit. Starting with Cisco IOS Release 12.2(40)SG, to avoid having ports named TenGigabit1/1 and Gigabit1/1, the 10-Gigabit and 1-Gigabit port numbers are independent. The WS-X4606-10GE-E module with six X2 ports are named TenGigabit<slot-num>/<1-6>, and the SFP ports are named Gigabit<slot-num>/<7-18.
In the Supervisor Engine 6-E and Catalyst 4900M chassis, the ports are connected to the switching engine through a stub ASIC. This stub ASIC imposes some limitations on the ports: Gigabit and 10-Gigabit ports cannot be mixed on a single stub ASIC; they must either be all 10-Gigabit (X2), or all Gigabit (TwinGig Converter and SFP). The faceplates of X2 modules show this stub-port grouping, either with an actual physical grouping, or a box drawn around a grouping.
Examples
This example shows to determine how the X2 holes on a module are grouped on a WS-X4606-10GE-E:
Switch# show hw-module module 1 port-groupModule Port-group Active Inactive-------------------------------------------------------------1 1 Te1/1-3 Gi1/7-121 2 Te1/4-6 Gi1/13-18Switch#Related Commands
Selects either Gigabit Ethernet or Ten Gigabit Ethernet interfaces on your module.
show hw-module uplink
To display the current uplink mode, use the show hw-module uplink command.
show hw-module uplink
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
12.2(25)EW
Support for this command was introduced on the Catalyst 4500 series switch.
Usage Guidelines
If the active uplink mode is different than configured mode, the output displays the change.
By default, the current (operational) uplink selection is displayed.
Examples
This example shows the output displaying the current (active) uplinks:
Switch# show hw-module uplinkActive uplink configuration is TenGigabitEthernetThis example shows the output for redundant systems in SSO mode if the 10-Gigabit Ethernet uplinks are active, and the Gigabit Ethernet uplinks are selected:
Switch# show hw-module uplinkActive uplink configuration is TenGigabitEthernet(will be GigabitEthernet after next reload)A 'redundancy reload shelf' or power-cycle of chassis is required toapply the new configurationThis example shows the output for redundant systems in RPR mode if the 10-Gigabit Ethernet uplinks are active, and the Gigabit Ethernet uplinks are selected:
Switch# show hw-module uplinkActive uplink configuration is TenGigabitEthernet(will be GigabitEthernet after next reload)A reload of active supervisor is required to apply the new configuration.Related Commands
Selects the 10-Gigabit Ethernet or Gigabit Ethernet uplinks on the Supervisor Engine V-10GE within the W-C4510R chassis.
show idprom
To display the IDPROMs for the chassis, supervisor engine, module, power supplies, fan trays, clock module, and multiplexer (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 mode
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 4Module 4 Idprom:Common Block Signature = 0xABABCommon Block Version = 1Common Block Length = 144Common Block Checksum = 4199Idprom Size = 256Block Count = 2FRU Major Type = 0x4201FRU Minor Type = 303OEM String = Cisco Systems, Inc.Product Number = WS-X4306Serial Number = 00000135Part Number = <tbd>Hardware Revision = 0.2Manufacturing Bits = 0x0000Engineering Bits = 0x0000Snmp OID = 0.0.0.0.0.0.0.0Power Consumption = 0RMA Failure Code = 0 0 0 0Linecard Block Signature = 0x4201Linecard Block Version = 1Linecard Block Length = 24Linecard Block Checksum = 658Feature Bits = 0x0000000000000000Card Feature Index = 50MAC Base = 0010.7bab.9830MAC Count = 6Switch#This example shows how to display IDPROM information for the GBICs on the Gigabit Ethernet interface 1/2:
Switch# show idprom interface gigabitethernet1/2GBIC Serial EEPROM Contents:Common Block:Identifier = GBIC [0x1]Extended Id = Not specified/compliant with defined MOD_DEF [0x0]Connector = SC connector [0x1]TransceiverSpeed = 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 MHzLength(9u) in km = GBIC does not support single mode fibre, or the lengthmust be determined from the transceiver technology.Length(9u) = > 25.4 kmLength(50u) = GBIC does not support 50 micron multi-mode fibre, or thelength must be determined from the transceiver technology.Length(62.5u) = GBIC does not support 62.5 micron multi-mode fibre, orthe length must be determined from transceiver technology.Length(Copper) = GBIC does not support copper cables, or the length mustbe determined from the transceiver technology.Vendor name = CISCO-FINISARVendor OUI = 36965Vendor Part No. = FTR-0119-CSCVendor Part Rev. = BWavelength = Not availableCC_BASE = 0x1AExtended ID FieldsOptions = Loss of Signal implemented TX_FAULT signal implemented TX_DISABLE is implemented and disables the serial output [0x1A]BR, max = UnspecifiedBR, min = UnspecifiedVendor Serial No. = K1273DHDate code = 030409Diag monitoring = ImplementedCalibration type = InternalRx pwr measuremnt = Optical Modulation Amplitude (OMA)Address change = RequiredCC_EXT = 0xB2Vendor 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-FINISA0x0020 52 20 20 20 00 00 90 65 46 54 52 2D 30 31 31 39 R ..^PeFTR-01190x0030 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 ....K1273DH0x0050 20 20 20 20 30 33 30 34 30 39 20 20 64 00 00 B2 030409 d..20x0060 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 10-Gigabit Ethernet interface 1/1:
Switch# show idprom interface tengigabitethernet1/1X2 Serial EEPROM Contents:Non-Volatile Register (NVR) FieldsX2 MSA Version supported :0xANVR Size in bytes :0x100Number of bytes used :0xD0Basic Field Address :0xBCustomer Field Address :0x77Vendor Field Address :0xA7Extended Vendor Field Address :0x100Reserved :0x0Transceiver type :0x2 =X2Optical connector type :0x1 =SCBit encoding :0x1 =NRZNormal BitRate in multiple of 1M b/s :0x2848Protocol Type :0x1 =10GgEStandards Compliance Codes :10GbE Code Byte 0 :0x2 =10GBASE-LR10GbE Code Byte 1 :0x0SONET/SDH Code Byte 0 :0x0SONET/SDH Code Byte 1 :0x0SONET/SDH Code Byte 2 :0x0SONET/SDH Code Byte 3 :0x010GFC Code Byte 0 :0x010GFC Code Byte 1 :0x010GFC Code Byte 2 :0x010GFC Code Byte 3 :0x0Transmission range in 10m :0x3E8Fibre Type :Fibre Type Byte 0 :0x40 =NDSF onlyFibre Type Byte 1 :0x0 =UnspecifiedCentre Optical Wavelength in 0.01nm steps - Channel 0 :0x1 0xFF 0xB8Centre Optical Wavelength in 0.01nm steps - Channel 1 :0x0 0x0 0x0Centre Optical Wavelength in 0.01nm steps - Channel 2 :0x0 0x0 0x0Centre Optical Wavelength in 0.01nm steps - Channel 3 :0x0 0x0 0x0Package Identifier OUI :0xC09820Transceiver Vendor OUI :0x3400800Transceiver vendor name :CISCO-OPNEXT,INCPart number provided by transceiver vendor :TRT5021EN-SMC-WRevision level of part number provided by vendor :00Vendor serial number :ONJ08290041Vendor manufacturing date code :2004072000Reserved1 : 00 02 02 20 D1 00 00Basic Field Checksum :0x10Customer Writable Area :0x00: 58 32 2D 31 30 47 42 2D 4C 52 20 20 20 20 20 200x10: 20 20 20 20 20 4F 4E 4A 30 38 32 39 30 30 34 310x20: 31 30 2D 32 30 33 36 2D 30 31 20 20 41 30 31 20Vendor Specific :0x00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 000x10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 000x20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 000x30: 00 00 00 00 11 E2 69 A9 2F 95 C6 EE D2 DA B3 FD0x40: 9A 34 4A 24 CB 00 00 00 00 00 00 00 00 00 EF FC0x50: F4 AC 1A D7 11 08 01 36 00Switch#This example shows how to display IDPROM information for the supervisor engine:
Switch# show idprom supervisorSupervisor Idprom:Common Block Signature = 0xABABCommon Block Version = 1Common Block Length = 144Common Block Checksum = 4153Idprom Size = 256Block Count = 2FRU Major Type = 0x4101FRU Minor Type = 333OEM String = Cisco Systems, Inc.Product Number = WS-X4014Serial Number = JAB05320CCEPart Number = 73-6854-04Part Revision = 05Manufacturing Deviation String = 0Hardware Revision = 0.4Manufacturing Bits = 0x0000Engineering Bits = 0x0000Snmp OID = 0.0.0.0.0.0.0.0Power Consumption = 0RMA Failure Code = 0 0 0 0Supervisor Block Signature = 0x4101Supervisor Block Version = 1Supervisor Block Length = 24Supervisor Block Checksum = 548Feature Bits = 0x0000000000000000Card Feature Index = 95MAC Base = 0007.0ee5.2a44MAC Count = 2Switch#This example shows how to display IDPROM information for the chassis:
Switch# show idprom chassisChassis Idprom:Common Block Signature = 0xABABCommon Block Version = 1Common Block Length = 144Common Block Checksum = 4285Idprom Size = 256Block Count = 2FRU Major Type = 0x4001FRU Minor Type = 24OEM String = Cisco Systems, Inc.Product Number = WS-C4507RSerial Number = FOX04473737Part Number = 73-4289-02Part Revision = 02Manufacturing Deviation String = 0x00Hardware Revision = 0.2Manufacturing Bits = 0x0000Engineering Bits = 0x0000Snmp OID = 0.0.0.0.0.0.0.0Chassis Block Signature = 0x4001Chassis Block Version = 1Chassis Block Length = 22Chassis Block Checksum = 421Feature Bits = 0x0000000000000000MAC Base = 0004.dd42.2600MAC Count = 1024Switch#This example shows how to display IDPROM information for power supply 1:
Switch# show idprom power-supply 1Power Supply 0 Idprom:Common Block Signature = 0xABABCommon Block Version = 1Common Block Length = 144Common Block Checksum = 10207Idprom Size = 256Block Count = 1FRU Major Type = 0xAB01FRU Minor Type = 8224OEM String = Cisco Systems, Inc.Product Number = WS-CAC-1440WSerial Number = ACP05180002Part Number = 34-XXXX-01Part Revision = A0Manufacturing Deviation String =Hardware Revision = 1.1Manufacturing Bits = 0x0000Engineering Bits = 0x3031Snmp OID = 9.12.3.65535.65535.65535.65535.65535Power Consumption = -1RMA Failure Code = 255 255 255 255Power Supply Block Signature = 0xFFFFPowerSupply Block Version = 255PowerSupply Block Length = 255PowerSupply Block Checksum = 65535Feature Bits = 0x00000000FFFFFFFFCurrent @ 110V = -1Current @ 220V = -1StackMIB OID = 65535Switch#This example shows how to display IDPROM information for the fan tray:
Switch# show idprom fan-trayFan Tray Idprom :Common Block Signature = 0xABABCommon Block Version = 1Common Block Length = 144Common Block Checksum = 19781Idprom Size = 256Block Count = 1FRU Major Type = 0x4002FRU Minor Type = 0OEM String = "Cisco Systems"Product Number = WS-X4502-fanSerial Number =Part Number =Part Revision =Manufacturing Deviation String =Hardware Revision = 0.1Manufacturing Bits = 0xFFFFEngineering Bits = 0xFFFFSnmp OID = 65535.65535.65535.65535.65535.65535.65535.65535Power Consumption = -1RMA Failure Code = 255 255 255 255Switch#show interfaces
To display traffic on a specific interface, use the show interfaces command.
show interfaces [{{fastethernet mod/interface-number} | {gigabitethernet mod/interface-number} | {tengigabitethernet mod/interface-number} | {null interface-number} | vlan vlan_id} | status}]
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
Usage Guidelines
The statistics are collected on a per-VLAN basis for Layer 2 switched packets and Layer 3 switched packets. The statistics are available for both unicast and multicast. The Layer 3 switched packet counts are available for both the 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 that is displayed between the
show interfaces command and the show running-config commands. The duplex mode that is displayed in the show interfaces command is the actual duplex mode that 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.
Linecards that support auto-MDIX configuration on their copper media ports include: WS-X4124-RJ45, WS-X4148-RJ with hardware revision 3.0 or higher, and WS-X4232-GB-RJ with hardware revision 3.0 or higher.
Examples
This example shows how to display traffic for Gigabit Ethernet interface 2/5:
Switch# show interfaces gigabitethernet2/5GigabitEthernet9/5 is up, line protocol is upHardware is C4k 1000Mb 802.3, address is 0001.64f8.3fa5 (bia 0001.64f8.3fa5)Internet address is 172.20.20.20/24MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Full-duplex, 1000Mb/sARP type: ARPA, ARP Timeout 04:00:00Last input 00:00:00, output never, output hang neverLast clearing of "show interface" counters neverQueueing strategy: fifoOutput queue 0/40, 0 drops; input queue 0/75, 0 drops5 minute input rate 1000 bits/sec, 2 packets/sec5 minute output rate 0 bits/sec, 0 packets/secL2 Switched: ucast: 8199 pkt, 1362060 bytes - mcast: 6980 pkt, 371952 bytesL3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcastL3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes300114 packets input, 27301436 bytes, 0 no bufferReceived 43458 broadcasts, 0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 input packets with dribble condition detected15181 packets output, 1955836 bytes, 0 underruns0 output errors, 0 collisions, 3 interface resets0 babbles, 0 late collision, 0 deferred0 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped outSwitch#This example shows how to display traffic for 10-Gigabit Ethernet interface 1/1:
Switch# show interfaces tengigabitethernet1/1Name: Tengigabitethernet1/1Switchport: EnabledAdministrative Mode: private-vlan promiscuous trunkOperational Mode: private-vlan promiscuous (suspended member of bundle Po1)Administrative Trunking Encapsulation: negotiateOperational Trunking Encapsulation: nativeNegotiation of Trunking: OffAccess Mode VLAN: noneTrunking Native Mode VLAN: noneAdministrative Native VLAN tagging: enabledVoice VLAN: noneAdministrative private-vlan host-association: noneAdministrative private-vlan mapping: 202 (VLAN0202) 303 (VLAN0303) 304 (VLAN0304)Administrative private-vlan trunk native VLAN: noneAdministrative private-vlan trunkNative VLAN tagging: enabledAdministrative private-vlan trunk encapsulation: 802.1qAdministrative private-vlan trunk normal VLANs: noneAdministrative private-vlan trunk private VLANs: noneAdministrative private-vlan mapping trunk: New 202 (VLAN0202) 303 (VLAN0303) 304 (VLAN0304) 204 (VLAN0204) 305 (VLAN0305) 306 (VLAN0306)Operational private-vlan: 202 (VLAN0202) 303 (VLAN0303) 304 (VLAN0304)Trunking VLANs Enabled: ALLPruning VLANs Enabled: 2-1001Capture Mode DisabledCapture VLANs Allowed: ALLSwitch#This example shows how to verify the status of auto-MDIX on a RJ-45 port:
Note
show interfaces command output for 10/100/1000BaseT RJ45 copper ports on supported linecards including WS-X4124-RJ45, WS-X4148-RJ with hardware revision 3.0 or higher, and WS-X4232-GB-RJ with hardware revision 3.0 or higher.FastEthernet6/3 is up, line protocol is up (connected)Hardware is Fast Ethernet Port, address is 0003.6ba8.ee68 (bia 0003.6ba8.ee68)MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Full-duplex, 100Mb/s, link type is auto, media type is 10/100BaseTXinput flow-control is unsupported output flow-control is unsupportedAuto-MDIX on (operational: on)ARP type: ARPA, ARP Timeout 04:00:00Last input never, output never, output hang neverLast clearing of "show interface" counters neverInput queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0Queueing strategy: fifoOutput queue: 0/40 (size/max)5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec0 packets input, 0 bytes, 0 no bufferReceived 0 broadcasts (0 multicasts)0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 input packets with dribble condition detected157082 packets output, 13418032 bytes, 0 underruns0 output errors, 0 collisions, 0 interface resets0 babbles, 0 late collision, 0 deferred1 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped outSwitch#This example shows how to display status information for Gigabit Ethernet interface 1/2:
Switch# show interfaces gigabitethernet1/2 statusPort Name Status Vlan Duplex Speed TypeGi1/2 notconnect 1 auto 1000 1000-XWDM-RXONLYSwitch#This example shows how to display status information for the interfaces on the supervisor engine:
Switch# show interfaces statusPort Name Status Vlan Duplex Speed TypeTe1/1 connected 1 full 10G 10GBase-LRTe1/2 connected 1 full 10G 10GBase-LRSwitch#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 mode
Command History
Usage Guidelines
The interface-number argument 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.
Linecards that support auto-MDIX configuration on their copper media ports include: WS-X4124-RJ45, WS-X4148-RJ with hardware revision 3.0 or higher, and WS-X4232-GB-RJ with hardware revision 3.0 or higher.
Examples
This example shows how to display the interface capabilities for a module:
Switch# show interfaces capabilities module 1GigabitEthernet1/1Model: WS-X4516-GbicType: Unsupported GBICSpeed: 1000Duplex: fullTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression:percentage(0-100), hwFlowcontrol: rx-(off,on,desired),tx-(off,on,desired)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(4q1t, Sharing/Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD yesLink Debounce: noLink Debounce Time: noPort Security yesDot1x yesGigabitEthernet1/2Model: WS-X4516-GbicType: Unsupported GBICSpeed: 1000Duplex: fullTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression:percentage(0-100), hwFlowcontrol: rx-(off,on,desired),tx-(off,on,desired)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(4q1t, Sharing/Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD yesLink Debounce: noLink Debounce Time: noPort Security yesDot1x yesSwitch#This example shows how to display the interface capabilities for the 10-Gigabit Ethernet interface 1/1:
Switch# show interfaces tengigabitethernet1/1 capabilitiesTenGigabitEthernet1/1Model: WS-X4517-X2Type: 10GBase-LRSpeed: 10000Duplex: fullTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression: percentage(0-100), hwFlowcontrol: rx-(off,on),tx-(off,on)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(1p3q1t, Sharing/Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD: yesLink Debounce: noLink Debounce Time: noPort Security: yesDot1x: yesMaximum MTU: 9198 bytes (Jumbo Frames)Multiple Media Types: noDiagnostic Monitoring: N/ASwitch#This example shows how to display the interface capabilities for Gigabit Ethernet interface 1/1:
Switch# show interfaces gigabitethernet1/1 capabilitiesGigabitEthernet1/1Model: WS-X4014-GbicType: No GbicSpeed: 1000Duplex: fullTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression:percentage(0-100), hwFlowcontrol: rx-(off,on,desired),tx-(off,on,desired)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(4q1t, Sharing/Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD: yesLink Debounce: noLink Debounce Time: noPort Security: yesDot1x: yesMTU Supported: jumbo frames, baby giantsSwitch#This example shows how to display the interface capabilities for Fast Ethernet interface 3/1:
Switch# show interfaces fastethernet3/1 capabilitiesFastEthernet3/1Model: WS-X4148-RJ-RJ-45Type: 10/100BaseTXSpeed: 10,100,autoDuplex: half,full,autoTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression:percentage(0-100), swFlowcontrol: rx-(none),tx-(none)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(4q1t, Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD: yesLink Debounce: noLink Debounce Time: noPort Security: yesDot1x: yesMTU Supported: no jumbo frames, baby giantsSwitch#This example shows how to verify that the auto-MDIX configuration is supported on a port:
Switch# show interfaces fastethernet6/3 capabilitiesFastEthernet6/3Model: WS-X4232-GB-RJ-RJ-45Type: 10/100BaseTXSpeed: 10,100,autoDuplex: half,full,autoAuto-MDIX yesTrunk encap. type: 802.1Q,ISLTrunk mode: on,off,desirable,nonegotiateChannel: yesBroadcast suppression: percentage(0-100), hwFlowcontrol: rx-(none),tx-(none)VLAN Membership: static, dynamicFast Start: yesQueuing: rx-(N/A), tx-(1p3q1t, Sharing/Shaping)CoS rewrite: yesToS rewrite: yesInline power: noSPAN: source/destinationUDLD: yesLink Debounce: noLink Debounce Time: noPort Security: yesDot1x: yesMaximum MTU: 1552 bytes (Baby Giants)Multiple Media Types: noDiagnostic Monitoring: N/ASwitch#Related Commands
show interfaces counters
To display the 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 mode
Command History
Usage Guidelines
If you do not enter any keywords, all the counters for all modules are displayed.
The display for the storm-control keyword includes the suppressed multicast bytes.
Examples
This example shows how to display the error counters for a specific module:
Switch# show interfaces counters errors module 1Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSizeGi1/1 0 0 0 0 0Gi1/2 0 0 0 0 0Port Single-Col Multi-Col Late-Col Excess-Col Carri-Sen Runts GiantsGi1/1 0 0 0 0 0 0 0Gi1/2 0 0 0 0 0 0 0Switch#This example shows how to display the traffic that is seen by a specific module:
Switch# show interfaces counters module 1Port InOctets InUcastPkts InMcastPkts InBcastPktsGi1/1 0 0 0 0Gi1/2 0 0 0 0Port OutOctets OutUcastPkts OutMcastPkts OutBcastPktsGi1/1 0 0 0 0Gi1/2 0 0 0 0Switch#This example shows how to display the trunk counters for a specific module:
Switch# show interfaces counters trunk module 1Port TrunkFramesTx TrunkFramesRx WrongEncapGi1/1 0 0 0Gi1/2 0 0 0Switch#This example shows how to display the number of packets that are discarded due to suppression:
Switch# show interfaces counters storm-controlMulticast Suppression : EnabledPort BcastSuppLevel TotalSuppressionDiscardsFa5/35 10.00% 6278550Switch#Related Commands
Displays the interface capabilities for an interface or for all the interfaces on a switch.
show interfaces description
To display a description and status of an interface, use the show interfaces description command.
show interfaces [interface] description
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
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 descriptionInterface Status Protocol DescriptionPO0/0 admin down down First interfacePO0/1 admin down downGi1/1 up up GigE to server farmSwitch#Related Commands
description (refer to Cisco IOS documentation)
Includes a specific description about the digital signal processor (DSP) interface.
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
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 linkPort Name Down TimeGi1/1 00:00:00Gi1/2 00:00:00Gi3/1 00:00:00Gi3/2 00:00:00Fa4/1 00:00:00Fa4/2 00:00:00Fa4/3 00:00:00Fa4/4 00:00:00This example shows how to display inactive link-level information:
Switch# show interfaces linkPort Name Down TimeGi3/4 1 minute 28 secsGi3/5 1 minute 28 secsGi3/6 1 minute 28 secsGi4/1 1 minute 28 secsIn 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
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 1Port Name MTUGi1/1 1500Gi1/2 1500Switch>Related Commands
Enables jumbo frames on an interface by adjusting the maximum size of a packet or maximum transmission unit (MTU).
show interfaces private-vlan mapping
To display PVLAN mapping information for VLAN SVIs, use the show interfaces private-vlan mapping command.
show interfaces private-vlan mapping [active]
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
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 interfaces private-vlan mappingInterface Secondary VLAN Type--------- -------------- -----------------vlan2 301 isolatedvlan2 302 isolatedSwitch#Related Commands
show interfaces status
To display the interface status or a list of interfaces in error-disabled state, use the show interfaces status command.
show interfaces status [err-disabled | inactive ] [module {module}]
Syntax Description
err-disabled
(Optional) Displays interfaces in error-disabled state.
inactive
(Optional) Displays interfaces in inactive state.
module module
(Optional) Displays interfaces on a specific module.
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
Command History
12.1(8a)EW
Support for this command was introduced on the Catalyst 4500 series switch.
12.2(40)SG
Support for WS-X4606-10GE-E Twin Gigabit convertor introduced.
Examples
This example shows how to display the status of all interfaces:
Switch# show interfaces statusPort Name Status Vlan Duplex Speed TypeGi1/1 disabled routed full 1000 missingGi1/2 notconnect 1 full 1000 unknown (4)Fa5/1 disabled routed auto auto 10/100BaseTXFa5/2 disabled routed auto auto 10/100BaseTXFa5/3 disabled routed auto auto 10/100BaseTXFa5/4 disabled routed auto auto 10/100BaseTX...Fa5/15 disabled routed auto auto 10/100BaseTXFa5/16 disabled routed auto auto 10/100BaseTXFa5/17 disabled routed auto auto 10/100BaseTXSwitch#This example shows how to display the status of interfaces in an error-disabled state:
Switch# show interfaces status err-disabledPort Name Status ReasonFa9/4 notconnect link-flapinformational 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 Fa9/4Switch#This example shows how to display the Gigabit Ethernet interfaces on a WS-X4606-10GE-E using the TwinGig Convertor:
Switch# show interfaces status module 1Port Name Status Vlan Duplex Speed TypeTe1/1 inactive 1 full 10G No X2Te1/2 inactive 1 full 10G No X2Te1/3 inactive 1 full 10G No X2Te1/4 notconnect 1 full 10G No X2Te1/5 notconnect 1 full 10G No X2Te1/6 notconnect 1 full 10G No X2Gi1/7 notconnect 1 full 1000 No GbicGi1/8 notconnect 1 full 1000 No GbicGi1/9 notconnect 1 full 1000 No GbicGi1/10 notconnect 1 full 1000 No GbicGi1/11 notconnect 1 full 1000 No GbicGi1/12 notconnect 1 full 1000 No GbicGi1/13 inactive 1 full 1000 No GbicGi1/14 inactive 1 full 1000 No GbicGi1/15 inactive 1 full 1000 No GbicGi1/16 inactive 1 full 1000 No GbicGi1/17 inactive 1 full 1000 No GbicGi1/18 inactive 1 full 1000 No GbicSwitch#Related Commands
Enables error-disable detection.
Selects either Gigabit Ethernet or Ten Gigabit Ethernet interfaces on your module.
Displays error disable recovery timer information.
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) 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 mode
Command History
Examples
This example shows how to display switch-port information using the begin output modifier:
Switch# show interfaces switchport | include VLANName: Fa5/6Access Mode VLAN: 200 (VLAN0200)Trunking Native Mode VLAN: 1 (default)Trunking VLANs Enabled: ALLPruning VLANs Enabled: ALLSwitch#This example shows how to display switch-port information for module 1:
Switch# show interfaces switchport module 1Name:Gi1/1Switchport:EnabledAdministrative Mode:dynamic autoOperational Mode:downAdministrative Trunking Encapsulation:negotiateNegotiation of Trunking:OnAccess Mode VLAN:1 (default)Trunking Native Mode VLAN:1 (default)Administrative private-vlan host-association:noneAdministrative private-vlan mapping:noneOperational private-vlan:noneTrunking VLANs Enabled:ALLPruning VLANs Enabled:2-1001Name:Gi1/2Switchport:EnabledAdministrative Mode:dynamic autoOperational Mode:downAdministrative Trunking Encapsulation:negotiateNegotiation of Trunking:OnAccess Mode VLAN:1 (default)Trunking Native Mode VLAN:1 (default)Administrative private-vlan host-association:noneAdministrative private-vlan mapping:noneOperational private-vlan:noneTrunking VLANs Enabled:ALLPruning VLANs Enabled:2-1001Switch#This example shows how to display the status of native VLAN tagging on the port:
Switch# show interfaces f3/1 switchportshow interface f3/1 switchportName: Fa3/1Switchport: EnabledAdministrative Mode: private-vlan trunk promiscuousOperational Mode: private-vlan trunk promiscuousAdministrative Trunking Encapsulation: negotiateOperational Trunking Encapsulation: dot1qNegotiation of Trunking: OnAccess Mode VLAN: 1 (default)Trunking Native Mode VLAN: 1 (default)Administrative Native VLAN tagging: enabledVoice VLAN: noneAdministrative private-vlan host-association: noneAdministrative private-vlan mapping: noneAdministrative private-vlan trunk native VLAN: 1Administrative private-vlan trunk Native VLAN tagging: enabledAdministrative private-vlan trunk encapsulation: dot1qAdministrative private-vlan trunk normal VLANs: 1Administrative private-vlan trunk associations: noneAdministrative private-vlan trunk mappings:10 (VLAN0010) 100 (VLAN0100)Operational private-vlan:10 (VLAN0010) 100 (VLAN0100)Trunking VLANs Enabled: ALLPruning VLANs Enabled: 2-1001Capture Mode DisabledCapture VLANs Allowed: ALLUnknown unicast blocked: disabledUnknown multicast blocked: disabledAppliance trust: noneSwitch#Related Commands
Displays the interface capabilities for an interface or for all the interfaces on a switch.
Displays the traffic on the physical interface.
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 noninterface-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) that is configured for diagnostic monitoring, and the transceiver is in a module that supports diagnostic monitoring.
Command Modes
Privileged EXEC mode
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:
•
•
If you notice that the 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 transceiverIf 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 OpticalTemperature Voltage Current Tx Power Rx PowerPort (Celsius) (Volts) (mA) (dBm) (dBm)------- ----------- ------- -------- -------- --------Gi1/1 48.1 3.30 0.0 8.1 ++ N/AGi1/2 33.0 3.30 1.8 -10.0 -36.9Gi2/1 43.7 5.03 50.6 + -16.7 -- N/AGi2/2 39.2 5.02 25.7 0.8 N/ASwitch#
Note
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 detailmA: 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 AlarmTemperature Threshold Threshold Threshold ThresholdPort (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)------- ------------------ ---------- --------- --------- ---------Gi1/1 48.1 100.0 100.0 0.0 0.0Gi1/2 34.9 100.0 100.0 0.0 0.0Gi2/1 43.5 70.0 60.0 5.0 0.0Gi2/2 39.1 70.0 60.0 5.0 0.0High Alarm High Warn Low Warn Low AlarmVoltage Threshold Threshold Threshold ThresholdPort (Volts) (Volts) (Volts) (Volts) (Volts)------- --------------- ---------- --------- --------- ---------Gi1/1 3.30 6.50 6.50 N/A N/AGi1/2 3.30 6.50 6.50 N/A N/AGi2/1 5.03 5.50 5.25 4.75 4.50Gi2/2 5.02 5.50 5.25 4.75 4.50High Alarm High Warn Low Warn Low AlarmCurrent Threshold Threshold Threshold ThresholdPort (milliamperes) (mA) (mA) (mA) (mA)------- ----------------- ---------- --------- --------- ---------Gi1/1 0.0 130.0 130.0 N/A N/AGi1/2 1.7 130.0 130.0 N/A N/AGi2/1 50.6 + 60.0 40.0 10.0 5.0Gi2/2 25.8 60.0 40.0 10.0 5.0Optical High Alarm High Warn Low Warn Low AlarmTransmit Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi1/1 8.1 ++ 8.1 8.1 N/A N/AGi1/2 -9.8 8.1 8.1 N/A N/AGi2/1 -16.7 (-13.0) -- 3.4 3.2 -0.3 -0.5Gi2/2 0.8 ( 5.1) 3.4 3.2 -0.3 -0.5Optical High Alarm High Warn Low Warn Low AlarmReceive Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi1/1 N/A 8.1 8.1 N/A N/AGi1/2 -30.9 8.1 8.1 N/A N/AGi2/1 N/A (-28.5) 5.9 -6.7 -28.5 -28.5Gi2/2 N/A (-19.5) 5.9 -6.7 -28.5 -28.5Switch#This example shows how to display the monitoring data for the interfaces that have transceivers installed on module 2:
Switch# show interfaces transceiver module 2If 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 OpticalTemperature Voltage Current Tx Power Rx PowerPort (Celsius) (Volts) (mA) (dBm) (dBm)------- ----------- ------- -------- -------- --------Gi2/1 43.7 5.03 50.6 + -16.7 -- N/AGi2/2 39.2 5.02 25.7 0.8 N/ASwitch#This example shows how to display the detailed monitoring data for the interfaces that have transceivers installed on module 2:
Switch# show interfaces transceiver detail module 2mA: 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 AlarmTemperature Threshold Threshold Threshold ThresholdPort (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)------- ------------------ ---------- --------- --------- ---------Gi2/1 43.5 70.0 60.0 5.0 0.0Gi2/2 39.1 70.0 60.0 5.0 0.0High Alarm High Warn Low Warn Low AlarmVoltage Threshold Threshold Threshold ThresholdPort (Volts) (Volts) (Volts) (Volts) (Volts)------- --------------- ---------- --------- --------- ---------Gi2/1 5.03 5.50 5.25 4.75 4.50Gi2/2 5.02 5.50 5.25 4.75 4.50High Alarm High Warn Low Warn Low AlarmCurrent Threshold Threshold Threshold ThresholdPort (milliamperes) (mA) (mA) (mA) (mA)------- ----------------- ---------- --------- --------- ---------Gi2/1 50.6 + 60.0 40.0 10.0 5.0Gi2/2 25.8 60.0 40.0 10.0 5.0Optical High Alarm High Warn Low Warn Low AlarmTransmit Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi2/1 -16.7 (-13.0) -- 3.4 3.2 -0.3 -0.5Gi2/2 0.8 ( 5.1) 3.4 3.2 -0.3 -0.5Optical High Alarm High Warn Low Warn Low AlarmReceive Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi2/1 N/A (-28.5) 5.9 -6.7 -28.5 -28.5Gi2/2 N/A (-19.5) 5.9 -6.7 -28.5 -28.5Switch#This example shows how to display the monitoring data for the transceivers on interface Gi1/2:
Switch# show interfaces g1/2 transceiverITU 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 OpticalTemperature Voltage Current Tx Power Rx PowerPort (Celsius) (Volts) (mA) (dBm) (dBm)------- ----------- ------- -------- -------- --------Gi2/1 43.7 5.03 50.6 + -16.7 -- N/ASwitch#This example shows how to display detailed the monitoring data for the transceivers on interface Gi1/2:
Switch# show interfaces g1/2 transceiver detailITU 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 AlarmTemperature Threshold Threshold Threshold ThresholdPort (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)------- ------------------ ---------- --------- --------- ---------Gi2/1 43.5 70.0 60.0 5.0 0.0High Alarm High Warn Low Warn Low AlarmVoltage Threshold Threshold Threshold ThresholdPort (Volts) (Volts) (Volts) (Volts) (Volts)------- --------------- ---------- --------- --------- ---------Gi2/1 5.03 5.50 5.25 4.75 4.50High Alarm High Warn Low Warn Low AlarmCurrent Threshold Threshold Threshold ThresholdPort (milliamperes) (mA) (mA) (mA) (mA)------- ----------------- ---------- --------- --------- ---------Gi2/1 50.6 + 60.0 40.0 10.0 5.0Optical High Alarm High Warn Low Warn Low AlarmTransmit Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi2/1 -16.7 (-13.0) -- 3.4 3.2 -0.3 -0.5Optical High Alarm High Warn Low Warn Low AlarmReceive Power Threshold Threshold Threshold ThresholdPort (dBm) (dBm) (dBm) (dBm) (dBm)------- ----------------- ---------- --------- --------- ---------Gi2/1 N/A (-28.5) 5.9 -6.7 -28.5 -28.5Switch#Related Commands
Displays the IDPROMs for the chassis.
Displays the interface status or a list of interfaces in error-disabled state.
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 mode
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 5Port Mode Encapsulation Status Native vlanFa5/1 routed negotiate routed 1Fa5/2 routed negotiate routed 1Fa5/3 routed negotiate routed 1Fa5/4 routed negotiate routed 1Fa5/5 routed negotiate routed 1Fa5/6 off negotiate not-trunking 10Fa5/7 off negotiate not-trunking 10Fa5/8 off negotiate not-trunking 1Fa5/9 desirable n-isl trunking 1Fa5/10 desirable negotiate not-trunking 1Fa5/11 routed negotiate routed 1Fa5/12 routed negotiate routed 1...Fa5/48 routed negotiate routed 1Port Vlans allowed on trunkFa5/1 noneFa5/2 noneFa5/3 noneFa5/4 noneFa5/5 noneFa5/6 noneFa5/7 noneFa5/8 200Fa5/9 1-1005Fa5/10 noneFa5/11 noneFa5/12 noneFa5/48 nonePort Vlans allowed and active in management domainFa5/1 noneFa5/2 noneFa5/3 noneFa5/4 noneFa5/5 noneFa5/6 noneFa5/7 noneFa5/8 200Fa5/9 1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-802,850,917,999,1002-1005Fa5/10 noneFa5/11 noneFa5/12 noneFa5/48 nonePort Vlans in spanning tree forwarding state and not prunedFa5/1 noneFa5/2 noneFa5/3 noneFa5/4 noneFa5/5 noneFa5/6 noneFa5/7 noneFa5/8 200Fa5/9 1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-802,850,917,999,1002-1005Fa5/10 noneFa5/11 noneFa5/48 noneSwitch#This example shows how to display trunking information for active trunking ports:
Switch# show interfaces trunkPort Mode Encapsulation Status Native vlanFa5/9 desirable n-isl trunking 1Port Vlans allowed on trunkFa5/9 1-1005Port Vlans allowed and active in management domainFa5/9 1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-802,850,917,999,1002-1005Port Vlans in spanning tree forwarding state and not prunedFa5/9 1-6,10,20,50,100,152,200,300,303-305,349-351,400,500,521,524,570,801-802,850,917,999,1002-1005Switch#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 mode
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 3Vlan Forwarded Dropped DHCP Drops ACL Drops---- --------- ------- ---------- ----------3 31753 102407 102407 0Vlan DHCP Permits ACL Permits Source MAC Failures---- ------------ ----------- -------------------3 31753 0 0Vlan Dest MAC Failures IP Validation Failures---- ----------------- ----------------------3 0 0Switch#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 statisticsVlan Forwarded Dropped DHCP Drops ACL Drops---- --------- ------- ---------- ----------1 0 0 0 02 0 0 0 03 68322 220356 220356 04 0 0 0 0100 0 0 0 0101 0 0 0 01006 0 0 0 01007 0 0 0 0Vlan DHCP Permits ACL Permits Source MAC Failures---- ------------ ----------- -------------------1 0 0 02 0 0 03 68322 0 04 0 0 0100 0 0 0101 0 0 01006 0 0 01007 0 0 0Vlan Dest MAC Failures IP Validation Failures---- ----------------- ----------------------1 0 02 0 03 0 04 0 0100 0 0101 0 01006 0 01007 0 0Switch#This example shows how to display the configuration and operating state of DAI for VLAN 1:
Switch# show ip arp inspection vlan 1Source Mac Validation : DisabledDestination Mac Validation : DisabledIP Address Validation : DisabledVlan Configuration Operation ACL Match Static ACL---- ------------- --------- --------- ----------1 Enabled ActiveVlan ACL Logging DHCP Logging---- ----------- ------------1 Deny DenySwitch#This example shows how to display the trust state of Fast Ethernet interface 6/1:
Switch# show ip arp inspection interfaces fastEthernet 6/1Interface Trust State Rate (pps) Burst Interval--------------- ----------- ---------- --------------Fa6/1 Untrusted 20 5Switch#This example shows how to display the trust state of the interfaces on the switch:
Switch# show ip arp inspection interfacesInterface Trust State Rate (pps)--------------- ----------- ----------Gi1/1 Untrusted 15Gi1/2 Untrusted 15Gi3/1 Untrusted 15Gi3/2 Untrusted 15Fa3/3 Trusted NoneFa3/4 Untrusted 15Fa3/5 Untrusted 15Fa3/6 Untrusted 15Fa3/7 Untrusted 15Switch#Related Commands
Defines an ARP access list or adds clauses at the end of a predefined list.
Clears the status of the log buffer.
Displays the status of the log buffer.
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 mode
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 logTotal Log Buffer Size : 10Syslog 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 logSwitch# show ip arp inspection logTotal Log Buffer Size : 10Syslog rate : 0 entries per 10 seconds.No entries in log buffer.Switch#Related Commands
Defines an ARP access list or adds clauses at the end of a predefined list.
Clears the status of the log buffer.
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
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
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 1003Prefix Next Hop Interface0.0.0.0/0 172.20.52.1 FastEthernet3/30.0.0.0/32 receive10.7.0.0/16 172.20.52.1 FastEthernet3/310.16.18.0/23 172.20.52.1 FastEthernet3/3Switch#This example shows how to display detailed IP CEF information for a specific VLAN:
Switch# show ip cef vlan 1003 detailIP Distributed CEF with switching (Table Version 2364), flags=0x01383 routes, 0 reresolve, 0 unresolved (0 old, 0 new)1383 leaves, 201 nodes, 380532 bytes, 2372 inserts, 989 invalidations0 load sharing elements, 0 bytes, 0 referencesuniversal per-destination load sharing algorithm, id 9B6C98233 CEF resets, 0 revisions of existing leavesrefcounts: 54276 leaf, 51712 nodeAdjacency Table has 5 adjacenciesSwitch#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 mode
Command History
12.1(12c)EW
Support for this command was introduced on the Catalyst 4500 series switch.
12.2(25)EWA
Support for option 82 on untrusted ports was added.
Examples
This example shows how to display the DHCP snooping configuration:
Switch# show ip dhcp snoopingSwitch DHCP snooping is enabledDHCP snooping is configured on following VLANs:500,555DHCP snooping is operational on following VLANs:500,555DHCP snooping is configured on the following L3 Interfaces:Insertion of option 82 is enabledcircuit-id default format: vlan-mod-portremote-id: switch123 (string)Option 82 on untrusted port is not allowed Verification of hwaddr field is enabled DHCP snooping trust/rate is configured on the following Interfaces:Interface Trusted Rate limit (pps)------------------------ ------- ----------------FastEthernet5/1 yes 100Custom circuit-ids:VLAN 555: customer-555FastEthernet2/1 no unlimitedCustom circuit-ids:VLAN 500: customer-500Switch#Related Commands
show ip dhcp snooping binding
To display the 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 mode
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 argument 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 bindingMacAddress IP Address Lease (seconds) Type VLAN Interface ----------- ----------- ---------------- ------------- ----- ------------ 0000.0100.0201 10.0.0.1 1600 dhcp-snooping 100 FastEthernet3/1Switch#This example shows how to display an IP address for DHCP snooping binding entries:
Switch# show ip dhcp snooping binding 172.100.101.102MacAddress IP Address Lease (seconds) Type VLAN Interface ----------- ----------- ---------------- ------------- ----- ------------ 0000.0100.0201 172.100.101.102 1600 dhcp-snooping 100 FastEthernet3/1Switch#This example shows how to display the MAC address for the DHCP snooping binding entries:
Switch# show ip dhcp snooping binding 55.5.5.2 0002.b33f.3d5fMacAddress IpAddress Lease(sec) Type VLAN Interface------------------ --------------- ---------- ------------- ---- --------------------00:02:B3:3F:3D:5F 55.5.5.2 492 dhcp-snooping 99 FastEthernet6/36Switch#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 99MacAddress IpAddress Lease(sec) Type VLAN Interface------------------ --------------- ---------- ------------- ---- --------------------00:02:B3:3F:3D:5F 55.5.5.2 479 dhcp-snooping 99 FastEthernet6/36Switch#This example shows how to display the dynamic DHCP snooping binding entries:
Switch# show ip dhcp snooping binding dynamicMacAddress IP Address Lease (seconds) Type VLAN Interface ----------- ----------- ---------------- ------------ ----- ------------ 0000.0100.0201 10.0.0.1 1600 dhcp-snooping 100 FastEthernet3/1Switch#This example shows how to display the 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 FastEthernet3/1Switch#This example shows how to display the DHCP snooping binding entries on Ethernet interface 0/1:
Switch# show ip dhcp snooping binding interface fastethernet3/1MacAddress IP Address Lease (seconds) Type VLAN Interface ----------- ----------- ---------------- ------------ ----- ------------ 0000.0100.0201 10.0.0.1 1600 dhcp-snooping 100 FastEthernet3/1Switch#Table 2-19 describes the fields in the show ip dhcp snooping command output.
Related Commands
show ip dhcp snooping database
To display the status of the DHCP snooping database agent, use the show ip dhcp snooping database command.
show ip dhcp snooping database [detail]
Syntax Description
Defaults
This command has no default settings.
Command Modes
Privileged EXEC mode
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 databaseAgent URL :Write delay Timer : 300 secondsAbort Timer : 300 secondsAgent Running : NoDelay Timer Expiry : Not RunningAbort Timer Expiry : Not RunningLast Succeded Time : NoneLast Failed Time : NoneLast Failed Reason : No failure recorded.Total Attempts : 0 Startup Failures : 0Successful Transfers : 0 Failed Transfers : 0Successful Reads : 0 Failed Reads : 0Successful Writes : 0 Failed Writes : 0Media Failures : 0Switch#This example shows how to view additional operating statistics:
Switch# show ip dhcp snooping database detailAgent URL : tftp://10.1.1.1/directory/fileWrite delay Timer : 300 secondsAbort Timer : 300 secondsAgent Running : NoDelay Timer Expiry : 7 (00:00:07) </
