Table Of Contents

show snmp access

show snmp counters

show snmp engineid

show snmp group

show snmp notify

show snmp targetaddr

show snmp targetparams

show snmp user

show snmp view

show span

show spantree

show spantree backbonefast

show spantree blockedports

show spantree portvlancost

show spantree statistics

show spantree summary

show spantree uplinkfast

show summertime

show system

show system highavailability

show tacacs

show tech-support

show test

22

show snmp access

Use the show snmp access command set to display SNMP access information.

show snmp access [volatile | nonvolatile | read-only]

show snmp access [-hex] groupname security-model {v1 | v2c}

show snmp access [-hex] groupname security-model v3 {noauthentication | authentication | privacy}

Syntax Description

volatile	(Optional) Keyword to display information for volatile storage types.
nonvolatile	(Optional) Keyword to display information for nonvolatile storage types.
read-only	(Optional) Keyword to display information for read-only storage types.
groupname	Name of the SNMP group or collection of users who have a common access policy.
-hex	(Optional) Keyword to display groupname and username as a hexadecimal character.
security-model v1 | v2c | v3	Keywords to specify security model v1, v2c, or v3.
noauthentication	Keyword to display information for security models not set to use authentication protocol.
authentication	Keyword to display information for authentication protocol.
privacy	Keyword to display information regarding messages sent on behalf of the user that are protected from disclosure.

Defaults

The default storage type is volatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for the groupname (nonprintable delimiters for this parameters), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Related Commands

set snmp access
clear snmp access

show snmp counters

Use the show snmp counters command to display SNMP counter information.

show snmp counters

show snmp counters {mod | port} [dot1d | dot3 | dot5 | fddi | hcrmon | ifmib |
rmon | v3]

Syntax Description

mod	Module number.
port	Port number.
dot1d	(Optional) Keyword to specify dot1d counters.
dot3	(Optional) Keyword to specify dot3 counters.
dot5	(Optional) Keyword to specify dot5 counters.
fddi	(Optional) Keyword to specify FDDI counters.
hcrmon	(Optional) Keyword to specify HCRMON counters.
ifmib	(Optional) Keyword to specify if-MIB counters.
rmon	(Optional) Keyword to specify RMON counters.
v3	(Optional) Keyword to specify SNMP v3 counters.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Examples

This example shows how to display all SNMP counters:

Console> show snmp counters

mib2 SNMP group counters:

snmpInPkts                 = 13993     

snmpOutPkts                = 13960     

snmpInBadVersions          = 0         

snmpInBadCommunityNames    = 33        

snmpInBadCommunityUses     = 0         

snmpInASNParseErrs         = 0         

snmpInTooBigs              = 0         

snmpInNoSuchNames          = 0         

snmpInBadValues            = 0         

snmpInReadOnlys            = 0         

snmpInGenErrs              = 0         

snmpInTotalReqVars         = 61747     

snmpInTotalSetVars         = 0         

snmpInGetRequests          = 623       

snmpInGetNexts             = 13337     

snmpInSetRequests          = 0         

snmpInGetResponses         = 0         

snmpInTraps                = 0         

snmpOutTooBigs             = 0         

snmpOutNoSuchNames         = 230       

snmpOutBadValues           = 0         

snmpOutGenErrs             = 0         

snmpOutGetRequests         = 0         

snmpOutGetNexts            = 0         

snmpOutSetRequests         = 0         

snmpOutGetResponses        = 13960     

snmpOutTraps               = 0         

Console> 

This example shows how to display SNMP 3 counters:

Console> show snmp counters v3

usmStatsUnsupportedSecLevels = 1     

usmStatsNotInTimeWindows     = 11    

usmStatsUnknownUserNames     = 18    

usmStatsUnknownEngineIDs     = 35    

usmStatsWrongDigests         = 0     

usmStatsDecryptionErrors     = 0     

Console> 

      = 0         

Console> (enable) 

Table 2-52 describes the fields in the show snmp counters command output.

Table 2-52 show snmp counters Command Output Fields 

Field	Description
snmpInPkts	Number of messages delivered to the SNMP entity from the transport service.
snmpOutPkts	Number of SNMP messages passed from the SNMP protocol entity to the transport service.
snmpInBadVersions	Number of SNMP messages delivered to the SNMP entity for an unsupported SNMP version.
snmpInBadCommunityNames	Number of SNMP messages delivered to the SNMP entity that used an SNMP community name not known to said entity.
snmpInBadCommunityUses	Number of SNMP messages delivered to the SNMP entity that represented an SNMP operation not allowed by the SNMP community named in the message.
snmpInASNParseErrs	Number of ASN.1 or BER errors encountered by the SNMP entity when decoding received SNMP messages.
snmpInTooBigs	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "tooBig."
snmpInNoSuchNames	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "noSuchName."
snmpInBadValues	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "badValue."
snmpInReadOnlys1	Number of valid SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "readOnly."
snmpInGenErrs	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "genErr."
snmpInTotalReqVars	Number of MIB objects retrieved successfully by the SNMP protocol entity as the result of receiving valid SNMP Get-Request and Get-Next PDUs.
snmpInTotalSetVars	Number of MIB objects altered successfully by the SNMP protocol entity as the result of receiving valid SNMP Set-Request PDUs.
snmpInGetRequests	Number of SNMP Get-Request PDUs accepted and processed by the SNMP protocol entity.
snmpInPkts	Number of messages delivered to the SNMP entity from the transport service.
snmpOutPkts	Number of SNMP messages passed from the SNMP protocol entity to the transport service.
snmpInBadVersions	Number of SNMP messages delivered to the SNMP entity for an unsupported SNMP version.
snmpInBadCommunityNames	Number of SNMP messages delivered to the SNMP entity that used an SNMP community name not known to said entity.
snmpInBadCommunityUses	Number of SNMP messages delivered to the SNMP entity that represented an SNMP operation not allowed by the SNMP community named in the message.
snmpInASNParseErrs	Number of ASN.1 or BER errors encountered by the SNMP entity when decoding received SNMP messages.
snmpInTooBigs	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "tooBig."
snmpInNoSuchNames	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "noSuchName."
snmpInBadValues	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "badValue."
snmpInGenErrs	Number of SNMP PDUs delivered to the SNMP protocol entity with the value of the error-status field as "genErr."
snmpInTotalReqVars	Number of MIB objects retrieved successfully by the SNMP protocol entity as the result of receiving valid SNMP Get-Request and Get-Next PDUs.
snmpInTotalSetVars	Number of MIB objects altered successfully by the SNMP protocol entity as the result of receiving valid SNMP Set-Request PDUs.
snmpInGetRequests	Number of SNMP Get-Request PDUs accepted and processed by the SNMP protocol entity.
snmpInGetNexts	Number of SNMP Get-Next PDUs accepted and processed by the SNMP protocol entity.
snmpInSetRequests	Number of SNMP Set-Request PDUs accepted and processed by the SNMP protocol entity.
snmpInGetResponses	Number of SNMP Get-Response PDUs accepted and processed by the SNMP protocol entity.
snmpInTraps	Number of SNMP Trap PDUs accepted and processed by the SNMP protocol entity.
snmpOutTooBigs	Number of SNMP PDUs generated by the SNMP protocol entity with the value of the error-status field as "tooBig."
snmpOutNoSuchNames	Number of SNMP PDUs generated by the SNMP protocol entity with the value of the error-status as "noSuchName."
snmpOutBadValues	Number of SNMP PDUs generated by the SNMP protocol entity with the value of the error-status field as "badValue."
snmpOutGenErrs	Number of SNMP PDUs generated by the SNMP protocol entity with the value of the error-status field as "genErr."
snmpOutGetRequests	Number of SNMP Get-Request PDUs generated by the SNMP protocol entity.
snmpOutGetNexts	Number of SNMP Get-Next PDUs generated by the SNMP protocol entity.
snmpOutSetRequests	Number of SNMP Set-Request PDUs generated by the SNMP protocol entity.
snmpOutGetResponses	Number of SNMP Get-Response PDUs generated by the SNMP protocol entity.
snmpOutTraps	Number of SNMP Trap PDUs generated by the SNMP protocol entity.
usmStatsUnsupportedSecLevels	Number of packets received by the SNMP engine that were dropped because they requested a security level that was unknown to the SNMP engine or otherwise unavailable.
usmStatsNotInTimeWindows	Number of packets received by the SNMP engine that were dropped because they appeared outside of the authoritative SNMP engine's window.
usmStatsUnknownUserNames	Number of packets received by the SNMP engine that were dropped because they referenced a user that was not known to the SNMP engine.
usmStatsUnknownEngineIDs	Number of packets received by the SNMP engine that were dropped because they referenced an snmpEngineID that was not known to the SNMP engine.
usmStatsWrongDigests	Number of packets received by the SNMP engine that were dropped because they did not contain the expected digest value.
usmStatsDecryptionErrors	Number of packets received by the SNMP engine that were dropped because they could not be decrypted.

1 It is a protocol error to generate an SNMP PDU that contains the value "readOnly" in the error-status field. This object is provided as a means of detecting incorrect implementations of the SNMP.

show snmp engineid

Use the show snmp engineid command to display the SNMP local engine ID.

show snmp engineid

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If the SNMP engine ID is cleared, the system automatically regenerates a local SNMP engine ID.

The SNMP engine and SNMP entity has a one-to-one mapping. You can also identify the SNMP entity, which is represented as hexadecimal numbers only, and must be from 5 to 32 bytes long; for example, 00:00:00:09:0a:fe:ff:12:97:33:45:12.

Examples

This example shows how to display the SNMP engine ID:

Console> (enable) show snmp engineid

EngineId: 00:00:00:09:00:d0:00:4c:18:00

Engine Boots: 1234455

Console> (enable) 

Table 2-53 describes the fields in the show snmp engineid command output.

Table 2-53 show snmp engineid Command Output Fields 

Field	Description
EngineId	String identifying the name of the SNMP copy on the device.
Engine Boots	Number of times an SNMP engine has been started or reinitialized.

Related Commands

show snmp

show snmp group

Use the show snmp group command to display the name of the SNMP group or collection of users who have a common access policy.

show snmp group [volatile | nonvolatile | read-only]

show snmp group [-hex] {groupname} [-hex] user {username}
[security-model {v1 | v2c | v3}]

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
groupname	Name of the SNMP group or collection of users who have a common access policy.
-hex	(Optional) Keyword to display groupname and username as a hexadecimal character.
user username	Keyword and variable to specify the SNMP group username.
security-model v1 | v2c | v3	(Optional) Keywords to specify security model v1, v2c, or v3.

Defaults

The default storage type is volatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for the groupname and username (nonprintable delimiters for these parameters), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display the SNMP group:

Console> (enable) show snmp group

Security Model: v1

Security Name: public

Group Name: defaultROgroup

Storage Type: volatile

Row Status: active

Security Model: v1

Security Name: secret

Group Name: defaultRWALLgroup

Storage Type: volatile

Row Status: active

Security Model: v1

Security Name: private

Group Name: defaultRWgroup

Storage Type: volatile

Row Status: active

Security Model: v2c

Security Name: public

Group Name: defaultROgroup

Storage Type: volatile

Row Status: active

Console> (enable) 

Table 2-54 describes the fields in the show snmp group command output.

Table 2-54 show snmp group Command Output Fields 

Field	Description
Security Model	Security model used by the group.
Security Name	Security string definition.
Group Name	Name of the SNMP group or collection of users who have a common access policy.
Storage Type	Keyword to indicate whether the settings are volatile or nonvolatile.
Row Status	Status of the entry.

Related Commands

set snmp group
clear snmp group

show snmp notify

Use the show snmp notify command to display the snmpNotifyTable configuration.

show snmp notify [volatile | nonvolatile | read-only]

show snmp notify [-hex] {notifyname}

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
-hex	(Optional) Keyword to display notifyname as a hexadecimal character.
notifyname	A unique identifier to index the snmpNotifyTable.

Defaults

The default storage type is nonvolatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for the notifyname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display the SNMP notify information for a specific notifyname:

Console> (enable) show snmp notify snmpV1Notification

Notify Name: snmpV1Notification

Notify Tag: snmpV1Trap

Notify Type: trap

Storage Type: volatile

Row Status: active

Console> (enable)

Table 2-55 describes the fields in the show snmp notify command output.

Table 2-55 show snmp notify Command Output Fields 

Field	Description
Notify Name	Unique identifier used to index the snmpNotifyTable.
Notify Tag	Name of the entry in the snmpNotifyTable.
Notify Type	Type of notification.
Storage Type	Storage type (volatile or nonvolatile).
Row Status	Status of the entry.

Related Commands

set snmp notify
clear snmp notify

show snmp targetaddr

Use the show snmp targetaddr command to display the SNMP target address entries in the snmpTargetAddressTable.

show snmp targetaddr [volatile | nonvolatile | read-only]

show snmp targetaddr [-hex] {addrname}

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
-hex	(Optional) Keyword to display addrname as a hexadecimal character.
addrname	Name of the target agent; the maximum length is 32 bytes.

Defaults

The default storage type is nonvolatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for the addrname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display specific target address information in the snmpTargetAddressTable:

Console> (enable) show snmp targetaddr cisco

Target Address Name: cisco

IP Address: 170.0.25.1

UDP Port#: 165

Timeout: 100

Retry count: 5

Tag List: tag1 tag2 tag3

Parameters: jeorge

Storage Type: nonvolatile

Row Status: active

Console> (enable)

Table 2-56 describes the fields in the show snmp targetaddr command output.

Table 2-56 show snmp targetaddr Command Output Fields 

Field	Description
Target Address Name	Name of the target address.
IP Address	Target IP address.
UDP Port #	Number of the UDP port of the target host to use.
Timeout	Number of timeouts.
Retry count	Number of retries.
Tag List	Tags that point to target addresses to send notifications to.
Parameters	Entry in the snmpTargetParamsTable; the maximum length is 32 bytes.
Storage Type	Storage type (volatile or nonvolatile).
Row Status	Status of the entry.

Related Commands

set snmp targetaddr
clear snmp targetaddr

show snmp targetparams

Use the show snmp targetparams command to display the SNMP parameters used in the snmpTargetParamsTable when generating a message to a target.

show snmp targetparams [volatile | nonvolatile | read-only]

show snmp targetparams [-hex] {paramsname}

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
-hex	(Optional) Keyword to display paramsname as a hexadecimal character.
paramsname	Name of the parameter in the snmpTargetParamsTable; the maximum length is 32 bytes.

Defaults

The default storage type is volatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for the paramsname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display specific target parameter information in the snmpTargetParamsTable:

Console> (enable) show snmp targetparams snmpV1TrapParams

Target Parameter Name: snmpV1TrapParams

Message Processing Model: v1

Security Name: public

Security Level: noauthentication

Storage Type: volatile

Row Status: active

Console> (enable)

Table 2-57 describes the fields in the show snmp targetparams command output.

Table 2-57 show snmp targetparams Command Output Fields 

Field	Description
Target Parameter Name	A unique identifier used to index the snmpTargetParamsTable.
Message Processing Model	Version number used by the Message Processing Model.
Security Name	Security string definition.
Security Level	Type of security level (authentication: security level is set to use authentication protocol, noauthentication: security level is not set to use authentication protocol).
Storage Type	Storage type (volatile or nonvolatile).
Row Status	Status of the entry.

Related Commands

set snmp targetparams
clear snmp targetparams

show snmp user

Use the show snmp user command set to display SNMP information for a specific user.

show snmp user [volatile | nonvolatile | read-only]

show snmp user [-hex] {user} [remote {engineid}]

show snmp user summary

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
-hex	(Optional) Keyword to display user as a hexadecimal character.
user	Name of the SNMP user.
remote engineid	(Optional) Keyword and variable to specify the username on a remote SNMP engine.
summary	Keyword to specify a summary of SNMP users.

Defaults

The default storage type is nonvolatile, and the local SNMP engine ID is used.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for user (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display specific user information:

Console> (enable) show snmp user joe

EngineId: 00:11:22:33:44

User Name: joe

Authentication Protocol: md5

Privacy Protocol: des56

Storage Type: volatile

Row Status: active

Console> (enable)

Table 2-58 describes the fields in the show snmp user command output.

Table 2-58 show snmp user Command Output Fields 

Field	Description
EngineId	String identifying the name of the copy of SNMP on the device.
User Name	String identifying the name of the SNMP user.
Authentication Protocol	Type of authentication protocol.
Privacy Protocol	Type of privacy authentication protocol.
Storage Type	Keyword to indicate whether the settings are volatile or nonvolatile.
Row Status	Status of the entry.

Related Commands

set snmp user
clear snmp user

show snmp view

Use the show snmp view command set to display the SNMP MIB view configuration.

show snmp view [volatile | nonvolatile | read-only]

show snmp view [-hex] {viewname} {subtree}

Syntax Description

volatile	(Optional) Keyword to specify the storage type is defined as temporary memory and the content is deleted if the device is turned off.
nonvolatile	(Optional) Keyword to specify the storage type is defined as persistent memory and the content remains after the device is turned off and on again.
read-only	(Optional) Keyword to specify that the storage type is defined as read only.
-hex	(Optional) Keyword to display the viewname as a hexadecimal character.
viewname	Name of a MIB view.
subtree	Name of the subtree.

Defaults

The default view is volatile.

Command Types

Switch command.

Command Modes

Privileged.

Usage Guidelines

If you use special characters for viewname (nonprintable delimiters for this parameter), you must use a hexadecimal keyword, which is one or two hexadecimal digits separated by a colon (:); for example, 00:ab:34.

A MIB subtree used with a mask defines a view subtree; it can be in OID format or a text name mapped to a valid OID.

The read-only keyword is supported for security model v3 only.

Examples

This example shows how to display the SNMP MIB view:

Console> (enable) show snmp view

View Name: defaultUserView

Subtree OID: 1.3.6.1

Subtree Mask: 

View Type: included

Storage Type: volatile

Row Status: active

Control> (enable)

Table 2-59 describes the fields in the show snmp view command output.

Table 2-59 show snmp view Command Output Fields 

Field	Description
View Name	Name of a MIB view.
Subtree OID	Name of a MIB subtree in OID format or a text name mapped to a valid OID.
Subtree Mask	Subtree mask can be all ones, all zeros, or a combination of both.
View Type	Status of whether the MIB subtree is included or excluded.
Storage Type	Storage type (volatile or nonvolatile).
Row Status	Status of the entry.

Related Commands

set snmp view
clear snmp view

show span

Use the show span command to display information about the current SPAN configuration.

show span

Syntax Description

This command has no keywords or arguments.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Examples

This example shows how to display SPAN information for the switch. In this example, the SPAN source is port 2/1 and the SPAN destination is port 2/12. Only transmit traffic is monitored. Normal incoming packets are disabled on the SPAN destination port. Monitoring multicast traffic is enabled.

Console> (enable) show span

----------------------------------------------------------

Destination     : Port 4/1

Admin Source    : Port 2/2

Oper Source     : Port 2/2

Direction       : transmit/receive

Incoming Packets: enabled

Learning        : -

Multicast       : enabled

Filter          : 10,20,30,40,50,60,70,80,90,100

Status          : inactive

Console> (enable)

Table 2-60 describes the fields in the show span command output.

Table 2-60 show span Command Output Fields 

Field	Description
Destination	Destination port for SPAN information.
Admin Source	Source port or VLAN for SPAN information.
Oper Source	Operator port or VLAN for SPAN information.
Direction	Status of whether transmit, receive, or transmit/receive information is monitored.
Incoming Packets	Status of whether reception of normal incoming packets on the SPAN destination port is enabled or disabled.
Learning	Status of whether learning is enabled or disabled for the SPAN destination port.
Multicast	Status of whether monitoring multicast traffic is enabled or disabled.
Filter	Monitored VLANs in source trunk ports.
Max. Bandwidth	Bandwidth limits for SPAN traffic, in Mbps.

Related Commands

clear config
set span

show spantree

Use the show spantree command to display spanning tree information for a VLAN.

show spantree [vlan | mod/port] [active]

Syntax Description

vlan	(Optional) Number of the VLAN.
mod/port	(Optional) Number of the module and the port on the module.
active	(Optional) Keyword to display only the active ports.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Usage Guidelines

If you do not specify the VLAN number, VLAN 1 is displayed.

The maximum length of the channel port list can be 47. The spaces in the Port column may not be enough to display the entire list in one line. If this is the case, the port list is split into multiple lines. For example, in the following display, ports 6/5-8, 6/13, 6/15, 6/17, 6/19 are channeling:

...

Port                     Vlan Port-State    Cost  Priority Portfast   Channel_id

------------------------ ---- ------------- ----- -------- ---------- ----------

6/5-8,6/13,6/15,6/17,6/1

9                        1    not-connected     0       32 disabled   768 

...

Examples

This example shows how to display the active spanning tree port configuration for VLAN 1:

Console> (enable) show spantree 1 active

VLAN 1

Spanning tree enabled

Spanning tree type          ieee

Designated Root             00-50-a7-0c-a0-00

Designated Root Priority    8192

Designated Root Cost        119

Designated Root Port        6/48

Root Max Age   20 sec    Hello Time 2  sec   Forward Delay 15 sec

Bridge ID MAC ADDR          00-50-3e-8f-8c-00

Bridge ID Priority          32768

Bridge Max Age 20 sec    Hello Time 2  sec   Forward Delay 15 sec

Port                     Vlan Port-State    Cost  Priority Portfast   Channel_id

------------------------ ---- ------------- ----- -------- ---------- ----------

6/18                    1    forwarding       19       32 disabled   0

6/19                    1    forwarding       19       32 disabled   0

6/20                    1    forwarding       19       32 disabled   0

6/32                    1    blocking         19       32 disabled   0

6/33                    1    blocking         19       32 disabled   0

6/34                    1    blocking         19       32 disabled   0

6/48                    1    forwarding       19       32 disabled   0

Console> (enable)

Table 2-61 describes the fields in the show spantree command output:

Table 2-61 show spantree Command Output Fields 

Field	Description
VLAN	VLAN for which spanning tree information is shown.
Spanning tree	Status of whether Spanning Tree Protocol is enabled or disabled.
Designated Root	MAC address of the designated spanning tree root bridge.
Designated Root Priority	Priority of the designated root bridge.
Designated Root Cost	Total path cost to reach the root.
Designated Root Port	Port through which the root bridge can be reached (shown only on nonroot bridges).
Root Max Age	Amount of time a BPDU packet should be considered valid.
Hello Time	Number of times the root bridge sends BPDUs.
Forward Delay	Amount of time the port spends in listening or learning mode.
Bridge ID MAC ADDR	Bridge MAC address.
Bridge ID Priority	Bridge priority.
Bridge Max Age	Bridge maximum age.
Hello Time	Amount of time the bridge sends BPDUs.
Forward Delay	Amount of time the bridge spends in listening or learning mode.
Port	Port number.
Vlan	VLAN to which the port belongs.
Port-State	Spanning tree port state (disabled, inactive, not-connected, blocking, listening, learning, forwarding, bridging, or type-pvid-inconsistent).
Cost	Cost associated with the port.
Priority	Priority associated with the port.
Portfast	Status of whether the port is configured to use the PortFast feature.
Channel_id	Channel ID number.

Related Commands

show spantree backbonefast
show spantree blockedports
show spantree portvlancost
show spantree statistics
show spantree summary
show spantree uplinkfast

show spantree backbonefast

Use the show spantree backbonefast command to display whether the spanning tree Backbone Fast Convergence feature is enabled.

show spantree backbonefast

Syntax Description

This command has no arguments or keywords.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Examples

This example shows how to display whether the spanning tree Backbone Fast Convergence feature is enabled:

Console> show spantree backbonefast

Backbonefast is enabled.

Console> 

Related Commands

set spantree backbonefast

show spantree blockedports

Use the show spantree blockedports command to display only the blocked ports.

show spantree blockedports [vlan_num]

Syntax Description

vlan_num

(Optional) Number of the VLAN.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Usage Guidelines

If you do not specify a VLAN number, all blocked ports in the system are displayed.

Examples

This example shows how to display the blocked ports for VLAN 1002:

Console> show spantree blockedports 1002

Number of blocked ports (segments) in VLAN 1002 : 0

Console> 

Related Commands

show spantree

show spantree portvlancost

Use the show spantree portvlancost command to show the path cost for the VLANs on a port.

show spantree portvlancost mod/port

Syntax Description

mod/port

(Optional) Number of the module and the port on the module.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Examples

This example shows how to display the path cost for the VLANs on port 2/12:

Console> show spantree portvlancost 2/12

Port 2/12 VLANs 1-1005 have path cost 19.

Console> 

Related Commands

set spantree portvlancost

show spantree statistics

Use the show spantree statistics command to show spanning tree statistical information.

show spantree statistics mod/port [vlan]

Syntax Description

mod/port	(Optional) Number of the module and the port on the module.
vlan	(Optional) Number of the VLAN.

Defaults

This command has no default setting.

Command Types

Switch command.

Command Modes

Normal.

Examples

This example shows how to display statistical information:

Console> (enable) show spantree statistics 1/2 1005

SpanningTree enabled for vlanNo = 1005

                BPDU-related parameters

port spanning tree                   enabled

state                                disabled

port_id                              0xcccf

port number                          0x7eb

path cost                            80

message age (port/VLAN)              0(10)

designated_root                      00-10-2f-52-eb-ec

designated_cost                      0

designated_bridge                    00-10-2f-52-eb-ec

designated_port                      0xcccf

top_change_ack                       FALSE

config_pending                       FALSE

                PORT based information & statistics

config bpdu's xmitted (port/VLAN)    0(0)

config bpdu's received (port/VLAN)   0(0)

tcn bpdu's xmitted (port/VLAN)       0(0)

tcn bpdu's received (port/VLAN)      0(0)

forward trans count                  0

                Status of Port Timers

forward delay timer                  INACTIVE

forward delay timer value            0

message age timer                    INACTIVE

message age timer value              0

topology change timer                INACTIVE

topology change timer value          0

hold timer                           INACTIVE

hold timer value                     0

delay root port timer                INACTIVE

delay root port timer value          0

                VLAN based information & statistics

spanningtree type                    ibm

spanningtree multicast address       c0-00-00-00-01-00