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Bring performance and reliability to your network with the HPE Aruba Networking Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of your switching devices, and find ways to improve security across your network to bring together a mobile-first solution
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spanning time: Time Since Last Change 28 mins ago

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  • 1.  spanning time: Time Since Last Change 28 mins ago

    Posted May 01, 2019 04:04 PM

    Hi!

     

    I have four switches connected like this.

     

    Core switch ----- trk1 --- Switch 1

    Core switch ----- trk2 ----- Switch 2

    Core Switch ---- trk3 --- switch 3

     

    Core switch is my root.

    CST Root Port : This switch is root

     

    I see lots of this topology change message when I run show spanning tree comnand.

    I dont see anything strange in Core switch log except port is disconnected when machine is offline.

     

    How can I trace this topology change?



  • 2.  RE: spanning time: Time Since Last Change 28 mins ago

    Posted May 02, 2019 09:34 AM

    I was able to trace down the port from where the toplogy change is coming.

     

    One of our Aruba is connected to Dell switch. 

    Now I want that there should not be any topology change messages come and I guess I have to stop Bpdu.

     

    As per my reading so far. I feel like Bpdu filter is the way to go and I should enable Bpdu filter on the port connected to Dell switch.

     

    Thoughts?

     

     



  • 3.  RE: spanning time: Time Since Last Change 28 mins ago
    Best Answer

    MVP GURU
    Posted May 02, 2019 10:19 AM

    Yes, it is a solution

     

    (or may be look on the Dell switch if edge/admin port is enable for user port



  • 4.  RE: spanning time: Time Since Last Change 28 mins ago

    Posted May 06, 2019 03:52 PM

    Yes make sense.