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Chapter 34: Spanning Tree Commands
C
M
OMMAND
ODE
Privileged Exec
C
U
OMMAND
SAGE
Use the show spanning-tree command with no parameters to display
•
the spanning tree configuration for the switch for the Common
Spanning Tree (CST) and for every interface in the tree.
Use the show spanning-tree interface command to display the
•
spanning tree configuration for an interface within the Common
Spanning Tree (CST).
Use the show spanning-tree mst command to display the spanning
•
tree configuration for all instances within the Multiple Spanning Tree
(MST), including global settings and settings for active interfaces.
Use the show spanning-tree mst instance-id command to display the
•
spanning tree configuration for an instance within the Multiple
Spanning Tree (MST), including global settings and settings for all
interfaces.
For a description of the items displayed under "Spanning-tree
•
information," see
"Configuring Global Settings for STA" on page
For a description of the items displayed for specific interfaces, see
"Displaying Interface Settings for STA" on page
E
XAMPLE
Console#show spanning-tree
Spanning Tree Information
---------------------------------------------------------------
Spanning Tree Mode
Spanning Tree Enabled/Disabled
Instance
VLANs Configured
Priority
Bridge Hello Time (sec.)
Bridge Max. Age (sec.)
Bridge Forward Delay (sec.)
Root Hello Time (sec.)
Root Max. Age (sec.)
Root Forward Delay (sec.)
Max. Hops
Remaining Hops
Designated Root
Current Root Port
Current Root Cost
Number of Topology Changes
Last Topology Change Time (sec.): 11409
Transmission Limit
Path Cost Method
Flooding Behavior
Cisco Prestandard
---------------------------------------------------------------
Eth
1/ 1 information
---------------------------------------------------------------
Admin Status
Role
State
External Admin Path Cost
– 1046 –
203.
: MSTP
: Enabled
: 0
: 1-4094
: 32768
: 2
: 20
: 15
: 2
: 20
: 15
: 20
: 20
: 32768.0.0001ECF8D8C6
: 21
: 100000
: 5
: 3
: Long
: To VLAN
: Disabled
: Enabled
: Disabled
: Discarding
: 0
193.
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