1. Mert Cevik

Mert Cevik

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Viewing 15 posts - 16 through 30 (of 183 total)
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  • in reply to: KANS FPGA is not receiving packets #8395
    Mert Cevik
    Moderator

      Network services are verified to be working across the sites.

      FPGA itself can be the concern. Can you share the output of
      command = 'cd esnet-smartnic-fw/sn-stack/ && docker compose exec smartnic-fw sn-cli cmac status' ?

      in reply to: FABRIC HAWI – Management network outage #8354
      Mert Cevik
      Moderator

        As an update,

        according to our tests and observations since reporting the issue to the hosting site, this issue did not repeat itself and we conclude that it’s resolved.

        in reply to: Cannot connect to download.docker.com #8351
        Mert Cevik
        Moderator

          This problem is caused by some issues within the hosting site’s and/or its upstream provider’s IPv6 routing, specific for the EDUKY node. Work is in progress to address this issue, but we don’t have a time yet for a resolution.

          FABRIC provides the following VM images that have docker (and openvswitch) installed in them
          – docker_ubuntu_20
          – docker_ubuntu_22
          – docker_ubuntu_24
          – docker_rocky_8

           

          On the other hand, the issue may present itself for some other specific servers. As a workaround, the following may help for a temporary solution.

          Get the IPv4 address of the server
          get.docker.com –> 108.157.150.23
          download.docker.com –> 108.157.150.36

          Adjust NAT64 addresses wrt FABRIC’s NAT64 gateway prefix
          get.docker.com –> 2600:2701:5000:5001::6c9d:9617
          download.docker.com –> 2600:2701:5000:5001::6c9d:9624

          Add to /etc/hosts

          echo “2600:2701:5000:5001::6c9d:9617 get.docker.com” >> /etc/hosts
          echo “2600:2701:5000:5001::6c9d:9624 download.docker.com” >> /etc/hosts

          Then, you should be able to reach these sites (routed to their IPv4 addresses through FABRIC’s NAT64)

          ubuntu@Node1:~$ curl -I https://get.docker.com
          HTTP/1.1 200 OK
          Content-Type: text/plain
          Content-Length: 22592
          Connection: keep-alive
          Date: Mon, 10 Mar 2025 08:24:07 GMT
          Last-Modified: Mon, 23 Dec 2024 12:06:43 GMT
          x-amz-version-id: jBhC8udY54KPazAadGzx.egHAVktsNCa
          ETag: “1a91bbd5af88e59c539b2f1ac7490347”
          Server: AmazonS3
          X-Cache: Hit from cloudfront
          Via: 1.1 3ce25b408212b0431973764f2829bcd2.cloudfront.net (CloudFront)
          X-Amz-Cf-Pop: MCI50-P2
          X-Amz-Cf-Id: NtXIyn1U5TQwjsaleKkIXEG7buaVTJN7vPExXgeAiqDGwVdHe9Z6pA==
          Age: 17673

          in reply to: Network outage for FABRIC-TACC #8325
          Mert Cevik
          Moderator

            Network outage is resolved. VMs on TACC node are accessible.

            in reply to: List of OS supported #8318
            Mert Cevik
            Moderator
              in reply to: Brief maintenance today at 12pm EST #8284
              Mert Cevik
              Moderator

                This maintenance is completed. All testbed services are available.

                in reply to: Maintenance on the Knowledgebase (learn.fabric-testbed.net) #8276
                Mert Cevik
                Moderator

                  Work is completed, learn.fabric-testbed.net is online.

                  in reply to: Cannot login to SALT node from my local machine #8272
                  Mert Cevik
                  Moderator
                    in reply to: Power outage on FABRIC-CLEM #7974
                    Mert Cevik
                    Moderator

                      Dear Experimenters,

                      FABRIC-CLEM is back online. VMs are accessible, their PCI devices are re-attached, however IP addresses may need to be re-assigned by the experimenters.

                      We have an issue on the dataplane that is interrupting traffic for L2STS and Layer3 services. We will post updates.

                       

                      in reply to: GPU node is not available #7959
                      Mert Cevik
                      Moderator

                        Hello Yuanjun.

                        I don’t have the details of your slice request, but from the STAR status page on the portal, host resources for hosts that have the RTX6000 GPUs (star-w1 and star-w2) have one GPU available. Host star-w2 has a very little amount of RAM. I checked slice creation on both hosts with their available GPUs and it works well. Just, for the VM that would be placed on star-w2, I selected very small amount of RAM and CPU to fit in it.

                         

                        in reply to: Testbed in maintenance mode #7958
                        Mert Cevik
                        Moderator

                          Dear Experimenters,

                          The problem is resolved, FABRIC testbed is operational for slices.

                           

                          in reply to: Unable to create EDC slice #7955
                          Mert Cevik
                          Moderator

                            I just deleted my slice on EDC with FABnetv4 service. FYI.

                            in reply to: FABRIC-CERN in maintenance mode #7870
                            Mert Cevik
                            Moderator

                              Dear Experimenters,

                              FABRIC-CERN is available for experiments.

                               

                              in reply to: Unable to access nodes SRI and MICH #7820
                              Mert Cevik
                              Moderator

                                Slice modification is supported on FABRIC. Yes you can remove the SRI VM and re-create VMs etc. It should be straightforward, but you can also check the link below for examples

                                https://github.com/fabric-testbed/jupyter-examples/blob/main/fabric_examples/fablib_api/modify_slice/modify-add-node-network.ipynb

                                in reply to: Unable to access nodes SRI and MICH #7818
                                Mert Cevik
                                Moderator

                                  MICH VM (2607:f018:110:11:f816:3eff:fe98:ba32) is online. I confirmed connection over the management network (through FABRIC bastion hosts) works well. It has an ssh key with alias “slice_key” in it (under user ubuntu)

                                  SRI VM (192.5.67.209) is online (responding to pings), but it does not allow SSH connections that it’s supposed to allow from the controller node. SSH keys might have been modified somehow. I don’t have much to do with this VM.

                                Viewing 15 posts - 16 through 30 (of 183 total)