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Ubiquity PtP causing ARP flood?

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  • 1.  Ubiquity PtP causing ARP flood?

    Posted Dec 08, 2023 02:19 PM

    Howdy!

    I have multiple switches with PtP ubiquity UHD5x systems. I noticed in aruba-central, those ports are causing a massive flood of random clients throughout our site in just one port, the uplink port of the PtP. The ARP of the switch is practically flooded from that port. Any ideas? Suggestions? How do I stop this PtP from flooding ARP.



  • 2.  RE: Ubiquity PtP causing ARP flood?

    EMPLOYEE
    Posted Dec 11, 2023 06:14 AM

    Not sure what that equipment is or does, but from PtP it may be that these devices are 'mesh' APs. If you have mesh APs, you probably only need to connect the 'primary' to the network, others use the wireless network to connect back.

    If these devices also have wired network ports, and they mesh/bridge on their wired network ports as well, you create a network loop that not only forwards ARP but any traffic.

    If this is not the issue, having more understanding about the network topology (diagram) would help.



    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 3.  RE: Ubiquity PtP causing ARP flood?

    Posted Dec 11, 2023 11:29 AM

    Here's a quickly sketched drawing lol.. All it is a wireless point to point system. Simple, system yet it seems to be causing issues with Aruba-Central client sight.




  • 4.  RE: Ubiquity PtP causing ARP flood?

    EMPLOYEE
    Posted Dec 12, 2023 06:13 AM

    Seems there is no loop in there.... I would to a packet capture on the ports reported to be flooded and see what is the traffic and where it originates from, now I would not have an idea. You may work with your Aruba partner or Aruba support on that as having interactive access and checking things on the fly will help to speed up the resolution.



    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------