Show Spanning-Tree - Cisco Catalyst 3550 Command Reference Manual

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands

show spanning-tree

Use the show spanning-tree user EXEC command to display spanning-tree state information.
Syntax Description bridge-group
active [detail]
backbonefast
blockedports
bridge [address | detail |
forward-time | hello-time |
id | max-age | priority
[system-id] | protocol]
detail [active]
inconsistentports
OL-8566-01
show spanning-tree [bridge-group | 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 bridge-group [active [detail] | blockedports | bridge | detail [active] |
inconsistentports | interface interface-id | root | summary] [| {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-group} bridge [address | detail | forward-time |
hello-time | id | max-age | priority [system-id] | protocol] [ | {begin | exclude | include}
expression]
show spanning-tree {vlan vlan-id | bridge-group} 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 [digest] | instance-id] [detail | interface interface-id
[detail]]
[ | {begin | exclude | include} expression]
(Optional) Specify the bridge group number. The range is 1 to 255.
(Optional) Display spanning-tree information only on active interfaces
(only available in privileged EXEC mode).
(Optional) Display spanning-tree BackboneFast status.
(Optional) Display blocked port information (only available in privileged
EXEC mode).
(Optional) Display status and configuration of this switch (optional
keywords only available in privileged EXEC mode).
(Optional) Display a detailed summary of interface information (active
keyword only available in privileged EXEC mode).
(Optional) Display inconsistent port information (only available in
privileged EXEC mode).
Catalyst 3550 Multilayer Switch Command Reference
show spanning-tree
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