Reference Guide

Spanning Tree Protocol | 997
Displaying STP Guard Configuration
To verify the STP guard configured on port or port-channel interfaces, enter the show spanning-tree 0
guard [interface interface] command.
The following example shows an example for an STP network (instance 0) in which:
Root guard is enabled on a port that is in a root-inconsistent state.
Loop guard is enabled on a port that is in a listening state.
BPDU guard is enabled on a port that is in a blocking state.
FTOS#show spanning-tree 0 guard
Interface
Name Instance Sts Guard type
--------- -------- --------- ----------
Gi 0/1 0 INCON(Root) Rootguard
Gi 0/2 0 LIS Loopguard
Gi 0/3 0 BLK Bpduguard