Wireless Access

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Frequent Contributor I
Posts: 83
Registered: ‎09-08-2015

Controller with STP disabled - BPDU guard triggered after reboot

During a recent change we rebooted a 7210 controller with two different port channels (currently only a single member interface in each).
 
Following the reboot, one of the upstream switches placed its interface to the controller into an error disabled state (BPDU guard).
 
The only causes I can think of are:
 
1) Somehow the controller acts as a bridge during boot and the switches on either side 'see' each other
 
2) Even though STP is disabled globally on the controller, during boot it sends BPDUs somehow?
 
Has anyone ever seen this happen before?

MVP
Posts: 952
Registered: ‎04-13-2009

Re: Controller with STP disabled - BPDU guard triggered after reboot

Hi,

 

Yeah, I saw similar behaviour at a recent deployment. The customer decided to diabled BPDU Guard on the switchports in question..

 

Cheers

James

Cheers
James

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