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DELL S50V User Manual

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Spanning Tree Protocol
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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.
•
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 52-13.  Displaying STP Guard Configuration
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          EDS (Shut)   Bpduguard