1. Komal Thareja

Komal Thareja

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Viewing 15 posts - 1 through 15 (of 416 total)
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  • in reply to: refrsh token issue inside jupyter notebook #8443
    Komal Thareja
    Participant

      This error typically occurs due to an expired token. Please try the following steps:
      Go to File → Hub Control Panel → Stop My Server, then select Start Server to generate a new token.

      Thanks,

      Komal

      P.S: https://learn.fabric-testbed.net/knowledge-base/using-the-jupyter-hub/#frequently-asked-questions

      in reply to: Node has no valid management IP. #8440
      Komal Thareja
      Participant

        Hi Philip,

        I can confirm that your slice is up and running. Could you please verify it from the Portal via Experiments-> My Slices.

        W.r.t to Jupyter Hub, could you please re-run this notebook jupyter-examples-rel1.8.*/configure_and_validate/configure_and_validate.ipynb ?

        After this, please try deleting your slice and recreating it via Hello Fabric notebook again.

        Thanks,

        Komal

        in reply to: Planned Outage Jupyter Hub – 11:00 – 11:30 AM EST #8436
        Komal Thareja
        Participant

          The maintenance is complete.

          Thanks,

          Komal

          in reply to: Availability of DPU-powered SmartNICs #8431
          Komal Thareja
          Participant

            Hi Plabon,

            We’re in the process of procuring BlueField DPUs and are planning to integrate them into the FABRIC infrastructure. While the timeline isn’t finalized yet, we’re tentatively looking at Summer or Fall 2025. Stay tuned for updates!

            Thanks,
            Komal

            Komal Thareja
            Participant

              Hi Sadat,

              Could you please provide following information?

              • Slice ID
              • Verify and report the status of the Slice from Portal via Experiments -> My Slices
              • Verify and report if any errors observed in /tmp/fablib/fablib.log from JH container.
              • Verify Bastion SSH Keys are not expired
                • Check via portal Experiments -> Manage SSH Keys -> Bastion Key
                • In JH Container – Run jupyter-examples-rel1.8*/configure_and_validate.ipynb – this shall renew your expired keys
                • Please try your slice again if your Bastion Keys are expired.

              Thanks,

              Komal

              in reply to: Unable to SSH into my Nodes #8409
              Komal Thareja
              Participant

                Hi Samia,

                I verified all the VMs in your slice are accessible via SSH. The error you are noticing is probably because of expired bastion keys. Could you please try to re-execute the notebook: jupyter-examples-rel1.8.1/configure_and_validate/configure_and_validate.ipynb ?

                This shall renew your bastion keys. If you are doing SSH from your laptop, please download the renewed bastion keys from /home/fabrirc/work/fabric_config directory after executing the notebook above to replace the keys in .ssh directory.

                Please let me know if you run into any issues or have questions.

                Thanks,

                Komal

                in reply to: KANS FPGA is not receiving packets #8393
                Komal Thareja
                Participant

                  Hello,

                  Could you please share your Slice ID?

                  Thanks,

                  Komal

                  in reply to: Is it possible to configure the VM open outbound port? #8389
                  Komal Thareja
                  Participant

                    FABRIC only allows SSH and few ICMP messages over the management interface. Hosting services on management network is not recommended. Instead, we recommend using data plane network for your service.

                    FABRIC serves as a secure sandbox, allowing students and researchers to experiment with potentially disruptive and vulnerable software architectures in a protected environment. When connecting external devices, such as laptops or servers, to nodes within a slice, it is crucial to employ secure methods like SSH tunnels. A Jupyter notebook example illustrates how to create SSH tunnels through the FABRIC bastion host. Alternatively, users can utilize personal VPNs like Tailscale for secure connections example notebook.

                    Exposing ports to the entire Internet is restricted, reserved only for exceptional cases where alternative solutions are not viable. Moreover, users undertaking such capabilities are responsible for deploying, maintaining, and ensuring the security of experiments, akin to a production data center. IPv4Ext and IPv6Ext services facilitate these capabilities.

                    For newcomers, getting acquainted with SSH tunnels is recommended due to their simplicity and security. If users have additional questions or require further guidance, they are encouraged to reach out.

                    Best,

                    Komal

                    in reply to: Two VLANs on one facility port #8345
                    Komal Thareja
                    Participant

                      Hi Mike,

                      Could you try specifying multiple VLANs when adding the Facility port and then access the interfaces as shown below?

                      facility_port = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=['3300', '3301'])  
                      facility_port_interface_1 = facility_port.get_interfaces()[0]  
                      facility_port_interface_2 = facility_port.get_interfaces()[1]  
                      

                       

                      P.S: Please change the vlans accordingly in the example above.

                      Thanks,
                      Komal

                      in reply to: Slice key issue #8334
                      Komal Thareja
                      Participant

                        Hi Mike,

                        Could you please check following files and ensure they point to the new key and have the right bastion username?

                        /home/fabric/work/fabric_config/fabric_rc

                        /home/fabric/work/fabric_config/ssh_config

                        Also, just verified that the VM in question seems to have been deleted.

                        Thanks,

                        Komal

                        in reply to: Slice key issue #8331
                        Komal Thareja
                        Participant

                          Hi Mike,

                          This could possibly be because your Bastion Key has expired. Could you please try running the  notebook jupyter-examples-rel1.8.1/configure_and_validate/configure_and_validate.ipynb again?

                          This should renew the keys. If error persists, could you please share if you see any errors in /tmp/fablib/fablib.log

                          Thanks,

                          Komal

                          Komal Thareja
                          Participant

                            Hi Tejas,

                            Could you please share your slice id?

                             

                            Thanks,

                            Komal

                            in reply to: Facility ports #8285
                            Komal Thareja
                            Participant

                              Glad to hear it worked, Mike! The default container should function properly as well—I’ll give it a try.

                              The Bleeding Edge container includes the latest released software versions, so I’d recommend using that.

                              Beyond Bleeding Edge contains the newest software from the main branch, including ongoing development changes, which may introduce some bugs.

                              Thanks,

                              Komal

                              in reply to: Facility ports #8281
                              Komal Thareja
                              Participant

                                Hi Mike,

                                I just tried the example notebook you mentioned. It worked for me using the Beyond Bleeding Edge Container. Could you please share which JH container are you using? Also, if possible share the Slice ID where you see this error or which Facility Ports you ran into this error with?

                                 

                                Thanks,

                                Komal

                                in reply to: Cannot login to SALT node from my local machine #8270
                                Komal Thareja
                                Participant

                                  Hi Sourya,

                                  There was a power outage at SALT and is being recovered. We will let you know as soon as the recovery is complete.

                                  Thanks,

                                  Komal

                                Viewing 15 posts - 1 through 15 (of 416 total)