On 17-Jul-14 11:14 AM, Victor Sudakov wrote:
> 
> This does not look good. If a broadcast frame arrives to this port
> before a BPDU does, there will be a storm and a lot of MAC flapping.
> Is there a way to keep the port from forwarding traffic until the UDLD
> state is Bidirectional ?

You can try to enable spanning-tree loopguard.
It will disable the port until it receives an BPDU from the other side.

Dumitru

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