1. FABNetv4 Connectivity Stopped Working Between Storage VM and Sites
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FABNetv4 Connectivity Stopped Working Between Storage VM and Sites

Home › Forums › FABRIC General Questions and Discussion › FABNetv4 Connectivity Stopped Working Between Storage VM and Sites

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Viewing 7 posts - 1 through 7 (of 7 total)
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  • December 23, 2025 at 12:11 am #9309
    Arash
    Participant

      I have a Storage VM at MICH  that needs to communicate with FPGA nodes at five other sites via FABNetv4. This setup was working perfectly a couple of days ago, but now the Storage VM cannot reach any of the remote nodes (0% success rate, 100% packet loss to all sites).

      I deleted and created another storage slice and noticed an error during the creation of the slice. (image attached)

      Has there been a recent change to FABNetv4 cross-site routing policy, or is there a known outage affecting inter-site connectivity?  Any guidance on troubleshooting or recommended architecture would be greatly appreciated.

      December 23, 2025 at 11:27 am #9311
      Tom Lehman
      Participant

        There was some maintenance last night on the underlying optical infrastructure.  I will check on status are report back here.

        Tom

        December 23, 2025 at 12:03 pm #9313
        Arash
        Participant

          Thank you, @Tom,

          I still can see that the problem exists.

           

          • This reply was modified 1 day, 1 hour ago by Arash.
          December 23, 2025 at 12:13 pm #9316
          Tom Lehman
          Participant

            The FABRIC MICH dataplane link is back in service.  FABNetv4 services are working now.

            December 23, 2025 at 12:31 pm #9317
            Arash
            Participant

              Thank you, Tom. I still have Tout from TACC to MICH and GPN to MICH. attached images.

              These notebooks were working fine a couple of days ago.

               

               

              December 23, 2025 at 12:38 pm #9320
              Arash
              Participant

                I also noticed the FabnetV4 gateways are not reachable from each of these sites as well

                “STAR”, “WASH”, “DALL”, “LOSA”, “SALT”

                December 23, 2025 at 2:15 pm #9323
                Arash
                Participant

                  It is fixed now. Thank you

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