VMware NSX

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  • 1.  Tunnel geneve between edge and host ? need it?

    Posted Jun 22, 2023 10:24 AM

    Hello guys

    I am testing l2 Bridging but doesn't work even if all configuration seems good

    One thing I didn't understand is what is tunnel geneve between edge and host? currently it's down statue 

    What is this tunnel role? and shoud be up for l2 bridging? 

    I tested to using same vlan for host and edge but 

    between host : tunnel up

    between edge : tunnel up

    between host and edge : tunnel down

    Could you give me some advice for th



  • 2.  RE: Tunnel geneve between edge and host ? need it?

    Posted Jun 23, 2023 07:08 AM

    Yes, you need that tunnel up. Read this to understand why:

    https://docs.vmware.com/en/VMware-NSX/4.1/administration/GUID-0E28AC86-9A87-47D4-BE25-5E425DAF7585.html

    Often the tunnel is down if you have MTU mismatch between the TEP VLANs. You need at least 1600 bytes MTU between them, depending on your configuration. If you have different VLAN IDs for Edge TEP and Host TEP they need to be routed externally. If you use the same VLAN ID other requirements apply.