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Checking for a MAC Rewrite Error Condition Blocking a Spanning-Tree Instance Interface
To check whether a spanning-tree instance interface is blocked due to a MAC rewrite error condition:
Use the show interfaces operational mode command:
user@host> show interfaces interface-nameYou can determine the status of the interface as follows:
- If the value in the Physical interface includes Enabled, Physical link is Up and the value of the BPDU Error field is None, the interface is enabled
- If the value in the Physical interface field is Enabled, Physical link is Down and the value in the BPDU Error field is Detected, the interface is blocked.
