Show Spanning-Tree - Cisco Catalyst 3750 Command Reference Manual

Chapter 2 Catalyst 3750 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
interface interface-id
[active [detail] | cost |
detail [active] |
inconsistency | portfast |
priority | rootcost | state]
78-16181-03
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] | [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
(available only in privileged EXEC mode).
(Optional) Display spanning-tree BackboneFast status.
(Optional) Display blocked port information (available only in privileged
EXEC mode).
(Optional) Display status and configuration of this switch (optional
keywords available only in privileged EXEC mode).
(Optional) Display a detailed summary of interface information (active
keyword available only in privileged EXEC mode).
(Optional) Display inconsistent port information (available only in
privileged EXEC mode).
(Optional) Display spanning-tree information for the specified interface
(all options except portfast and state available only 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 VLAN range is 1 to 4094. The port-channel range is 1
to 48.
Catalyst 3750 Switch Command Reference
show spanning-tree
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