Specifications

show spanning-tree
228
Item Meaning Displayed information
RootGuard Root guard Indicates that the port applies the root guard
functionality.
Compatible Compatible mode Indicates that the port is operating in compatible mode
when Mode for the Spanning Tree Protocol is Rapid
STP. Ports operating in compatible mode do not perform
rapid status transitions.
Example 3
Figure 17-3 Example of displaying information about Multiple Spanning Tree
> show spanning-tree mst instance 1-4095
Date 2008/11/14 13:04:05 UTC
Multiple Spanning Tree: Enabled
Revision Level: 0 Configuration Name:
MST Instance 1
VLAN Mapped: 2
Regional Root Priority: 32769 MAC : 00ed.f010.0001
Internal Root Cost : 0 Root Port: -
Bridge ID Priority: 32769 MAC : 00ed.f010.0001
Regional Bridge Status : Root
Port Information
0/1 Up Status:Forwarding Role:Designated RootGuard
0/2 Down Status:Disabled Role:- RootGuard
0/3 Down Status:Disabled Role:- -
0/4 Down Status:Disabled Role:- -
0/5 Down Status:Disabled Role:- -
0/6 Down Status:Disabled Role:- -
0/7 Down Status:Disabled Role:- RootGuard
0/8 Down Status:Disabled Role:- RootGuard
0/11 Down Status:Disabled Role:- -
0/12 Up Status:Forwarding Role:Designated -
ChGr:1 Up Status:Forwarding Role:Designated RootGuard
MST Instance 4095
VLAN Mapped: 4094
Regional Root Priority: 36863 MAC : 00ed.f010.0001
Internal Root Cost : 0 Root Port: -
Bridge ID Priority: 36863 MAC : 00ed.f010.0001
Regional Bridge Status : Root
Port Information
0/17 Down Status:Disabled Role:- -
0/18 Down Status:Disabled Role:- -
0/19 Down Status:Disabled Role:- -
0/20 Up Status:Forwarding Role:Designated PortFast
0/21 Down Status:Disabled Role:- -
0/22 Up Status:Forwarding Role:Designated -
ChGr:8 Down Status:Disabled Role:- RootGuard
>