24-Port Fast Ethernet Switch Management Guide

S PANNING T REE C OMMANDS
4-228
•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 instance_id command to display the
spanning tree configuration for an instance within the Multiple Spanning
Tree (MST).
• For a description of the items displayed under “Spanning-tree
information,” see “Configuring Global Settings” on page 3-160. For a
description of the items displayed for specific interfaces, see “Displaying
Interface Settings” on page 3-165.
Example
Console#show spanning-tree
Spanning-tree information
---------------------------------------------------------------
Spanning tree mode: MSTP
Spanning tree enabled/disabled: enabled
Spanning tree priority format: 802.1t
Spanning tree backup root: disabled
Instance: 0
VLANs configuration: 1-4093
Priority: 32768
Bridge Hello Time (sec.): 2
Bridge Max Age (sec.): 20
Bridge Forward Delay (sec.): 15
Root Hello Time (sec.): 2
Root Max Age (sec.): 20
Root Forward Delay (sec.): 15
Max hops: 20
Remaining hops: 20
Designated Root: 32768.0.0000E8AAAA00
Current root port: 26
Current root cost: 20000
CIST path cost: 0
Number of topology changes: 4
Last topology changes time (sec.):7124
Transmission limit: 6
Path Cost Method: long