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    Packet loss and errors on VLAN Interfaces when using vmware

    Scheduled Pinned Locked Moved Virtualization
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    • J
      jpinder70
      last edited by

      Community –

      I have this issue with interface errors using pfsense to create a VLAN tag vs creating the VLAN Interface in vmware then assigning the Interface to pfsense.

      Scenario A:

      Create a VLAN tag in pfsense and assign it an interface and you will see after a while there's lots of out errors and I get packet loss about 4% on the interface and this causes issues on our network from time-to-time

      Scenario B:

      Create the VLAN on the vswitch in vmware then assign the new vswitch network adapter to pfsense, there's 0% packet loss and no out errors.

      I have to create more than 35 VLANS and vmware only supports 10 vswitch network interfaces per VM, I didn't want to create 4 pfsense VM to handle our network.

      I'm using VMXNET3 drivers and running 9000 MTU because we have 10Gbe network with the open-vm-tools package installed

      How can I get more details to trouble shoot this and is there any documented issues or solution/patch I can do to resolve this?

      error_interface.JPG
      error_interface.JPG_thumb
      no_error_interface.JPG
      no_error_interface.JPG_thumb

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      • G
        GomezAddams
        last edited by

        I'm out of my depth here, but you'll probably need to get a command line and figure out what the exact interface errors are.

        Just out of curiosity, have you tried the e1000 emulated adapter? I know the performance won't be as good, but if it shows errors as well, that tells us something. Not sure what, but maybe it will help.

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        • J
          jpinder70
          last edited by

          Hi Gomez,

          I didn't try the e1000. I will give it a try and report back.

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