Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Controller with STP disabled - BPDU guard triggered after reboot

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  • 1.  Controller with STP disabled - BPDU guard triggered after reboot

    Posted Nov 17, 2016 09:23 PM

    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?



  • 2.  RE: Controller with STP disabled - BPDU guard triggered after reboot

    Posted Nov 18, 2016 04:56 AM

    Hi,

     

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

     

    Cheers

    James