Reference Guide

908 | Spanning Tree Protocol (STP)
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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 example below shows 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 shut down (Error Disabled state) after receiving a BPDU.
Figure 50-15. Displaying STP Guard Configuration
Dell#show spanning-tree 0 guard
Interface
Name Instance Sts Guard type Bpdu Filter
--------- -------- --------- ---------- -----------
Te 0/1 0 INCON(Root) Rootguard No
Te 0/2 0 LIS Loopguard No
Te 0/3 0 EDS (Shut) Bpduguard No
Dell#