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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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Loops in the switch

This thread has been viewed 4 times

  • 1.  Loops in the switch

    EMPLOYEE
    Posted Apr 27, 2019 09:21 PM

    Will i be able to disable the ports if there are loops in the switches ?

    (example: port 1 is connected to port 2 which is not neccessary as per the config )

    My topology has JL262A switches



  • 2.  RE: Loops in the switch

    Posted Apr 28, 2019 03:27 AM
    What type of switch are you using?


  • 3.  RE: Loops in the switch

    EMPLOYEE
    Posted Jul 07, 2019 10:06 AM

    my network is having JL262A procurve 48 port switches



  • 4.  RE: Loops in the switch

    Posted Apr 30, 2019 05:16 AM

    Next to spanning tree on the edge interfaces you can use loop-protect, you can configure loop protect to disable ports for a period of time. i woud always advise to use spanning tree combined with loop-protect for edge loop detection.

     

    config example:

    loop-protect 1-48
    loop-protect disable-timer 60 (or any other value in seconds you wish)



  • 5.  RE: Loops in the switch

    EMPLOYEE
    Posted May 29, 2019 12:11 AM

    Hi,

     

    Loop protect is a good starting point but I would also look at BPDU protection. Loop Protect is only working on untagged ports, which are in the same VLAN and on the same switch. 

    I have written a post about loop protection and BPDU protection here:

    https://www.flomain.de/2018/01/protect-from-spanning-tree-loops-access-area/

     

    Just have a look and decides which one fits better in your environment. 

     

    BR

    Florian



  • 6.  RE: Loops in the switch

    EMPLOYEE
    Posted Jul 07, 2019 10:07 AM

    would loop protect disable the ports permanently



  • 7.  RE: Loops in the switch

    Posted Jul 24, 2019 10:04 AM

    if you use the loop-protect disable-timer XX where XX is the number of seconds the ports would be disabled for.  with out this command i believe the ports would be disabled until the switch reboots next.