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Related Documentation
- MX Series
- Root Protection for Spanning-Tree Instance Interfaces Overview
- BPDU Protection for Spanning-Tree Instance Interfaces Overview
- BPDU Protection for Individual Spanning-Tree Instance Interfaces
- BPDU Protection on All Edge Ports of the Bridge
- Clearing the Blocked Status of a Spanning-Tree Instance Interface
Checking the Status of Spanning-Tree Instance Interfaces
On an MX Series router with a spanning-tree protocol enabled, the detection of a possible bridging loop from spanning-tree protocol operation can raise a bridge protocol data unit (BPDU) error condition on the affected spanning-tree instance interface.
To check whether a spanning-tree instance interface is blocked due to a BPDU error condition:
To check the status of spanning-tree instance interface, use the show interfaces command.
user@host> show interfaces interface-nameYou can determine the status of the interface as follows:
- If the BPDU Error field is none, the interface is enabled.
- If the BPDU Error field is Detected and the link is down, the interface is blocked.
Related Documentation
- MX Series
- Root Protection for Spanning-Tree Instance Interfaces Overview
- BPDU Protection for Spanning-Tree Instance Interfaces Overview
- BPDU Protection for Individual Spanning-Tree Instance Interfaces
- BPDU Protection on All Edge Ports of the Bridge
- Clearing the Blocked Status of a Spanning-Tree Instance Interface
