5 Replies Latest reply on Jul 17, 2018 11:31 PM by infoSige

    network failed after crash of ESX

    infoSige Lurker

      Good evening,

       

      we have got a test cluster with 3 ESX 6.5 and vSAN, EVC, HA enabled.

       

      for test, we had get out powersupply to one ESX and the HA had restarted vm on a other ESX in the cluster. No problem with that.

       

      But after we have restarted ESX et rebuild vSAN, we have removed vm on ESX but the network connection for the vm  failed. We have restarted ESX services to fix the problem.

       

      what do you thing? maybe that is network configuration issue?

       

      thank to help

        • 1. Re: network failed after crash of ESX
          ujjwal2018 Novice
          VMware Employees

          1. Was the virtual machine part of standard switch or distributed switch  ?

          2. Was virtual machine able to ping other virtual machine on the same host and same port group ( when it was restarted after the HA failure ) ?

          3. If yes, then it could be something upstream to the ESXi . If you have multiple network adapter cards connected to the vswitch or distributed switch and the interfaces connected to the vmnic don't have identical configuration ( some vlan missing ) then you can encounter the same issue . It can also be possible , if MAC address table not synced properly on the physical switch .

          4. You can check the port group configuration on both the host and make sure they can identical as well.

           

           

          Please consider marking this answer "correct" or "helpful" if you think your question have been answered correctly.

           

           

          Regards,

          UJ

          • 2. Re: network failed after crash of ESX
            infoSige Lurker

            Hello,

             

            thank you for your message.

             

            1. yes, we have distributed switch.

            2. I didn't test that, but I cannot ping from other host. I am going to  test ping from vm on the same host.

            3. I will check.

            4. I will check.

             

            a come back as soon as possible

            • 3. Re: network failed after crash of ESX
              ujjwal2018 Novice
              VMware Employees

              If virtual machines can ping other virtual machines on the same host-same port group - then it's something upstream to the ESXi host .

               

              Please let me know after performing the above check and we can check further .

              • 4. Re: network failed after crash of ESX
                ujjwal2018 Novice
                VMware Employees

                Any update ?

                • 5. Re: network failed after crash of ESX
                  infoSige Lurker

                  Hello,

                   

                  I cannot make the test now because I have to make some operation before my holiday which start next week.

                   

                  I try to test the new network configuration at the end of this week or after holiday.

                   

                  thank a lot for your help

                   

                  best regards