Show Spanning-Tree - Cisco Catalyst 2950 Command Reference Manual

Chapter 2 Cisco IOS Commands

show spanning-tree

Use the show spanning-tree user EXEC command to display spanning-tree state information.
Syntax Description active [detail]
backbonefast
blockedports
bridge [address | detail |
forward-time | hello-time |
id | max-age | priority
[system-id] | protocol]
detail [active]
inconsistentports
interface interface-id
[active [detail] | cost |
detail [active] |
inconsistency | portfast |
priority | rootcost | state]
78-11381-05
show spanning-tree [active [detail] | backbonefast | blockedports | bridge | detail [active] |
inconsistentports | interface interface-id | mst | pathcost method | root | summary [totals] |
uplinkfast | vlan vlan-id] [ | {begin | exclude | include} expression]
show spanning-tree vlan vlan-id [active [detail] | blockedports | bridge | detail [active] |
inconsistentports | interface interface-id | root | summary] [ | {begin | exclude | include}
expression
show spanning-tree {vlan vlan-id} bridge [address | detail | forward-time | hello-time | id |
max-age | priority [system-id] | protocol] [ | {begin | exclude | include} expression]
show spanning-tree {vlan vlan-id} root [address | cost | detail | forward-time | hello-time | id |
max-age | port | priority [system-id] [ | {begin | exclude | include} expression]
show spanning-tree interface interface-id [active [detail] | cost | detail [active] | inconsistency |
portfast | priority | rootcost | state] [ | {begin | exclude | include} expression]
show spanning-tree mst [configuration | instance-id] [detail | interface interface-id [detail]]
[ | {begin | exclude | include} expression]
(Optional) Display spanning-tree information only on active interfaces
(only available in privileged EXEC mode).
(Optional) Display spanning-tree BackboneFast status (only available in
privileged EXEC mode).
(Optional) Display blocked port information (only available in privileged
EXEC mode).
(Optional) Display status and configuration of this switch (only available
in privileged EXEC mode).
(Optional) Display a detailed summary of interface information (only
available in privileged EXEC mode).
(Optional) Display inconsistent port information (only available in
privileged EXEC mode).
(Optional) Display spanning-tree information for the specified interface
(all options only available in privileged EXEC mode). Enter each
interface separated by a space. Ranges are not supported. Valid interfaces
include physical ports, VLANs, and port channels. The valid VLAN
range is 1 to 4094 when the enhanced software image (EI) is installed
and 1 to 1005 when the standard software image (SI) is installed. Do not
enter leading zeros. The valid port-channel range is 1 to 6.
Catalyst 2950 Desktop Switch Command Reference
show spanning-tree
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