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Unblocking an Interface That Receives BPDUs in Error
 | Note: BPDU block protection is disabled on Node devices. |
QFX Series switches use bridge protocol data unit (BPDU) protection on interfaces to prevent them from receiving BPDUs that could trigger a spanning-tree misconfiguration. If BPDUs are received on a BPDU-protected interface, the interface transitions to a blocking state and stops forwarding frames.
After you fix the misconfiguration that triggered the sending of BPDUs to an interface, you can unblock the interface and return it to service.
To unblock an interface after fixing the misconfiguration that triggered the BPDUs and return it to service using the CLI:
- Automatically unblock an interface by configuring a timer
that expires (here, the interface is xe-0/0/6):
[edit ethernet-switching-options]
user@switch# set bpdu-blockdisable-timeout 30 interface xe-0/0/6 - Manually unblock an interface using the operational mode
command:
user@switch> clear ethernet-switching bpdu-error interface xe-0/0/6
