vSphere vNetwork

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  • 1.  Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 02:25 AM

    In a topology similar to this:

    vsphere-l2-bridge.png

    What do the vNICs have to be set to to bridge ALL VLANs? Is it unspecified (none/0) or all (4095)? Normally it'd be 4095 on things that need all VLANs, like firewalls, but since this is a bridge… I don't want the <thing-related-that-would-apply-here> messing with the traffic.

    Teal is supposed to be a subinterface e.g. ix0.9  — a VLAN — hence its position behind the big vSwitch/vDS symbol/representation.

    Thanks!

     



  • 2.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 07:14 AM

    Comment removed...



  • 3.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 07:25 AM

    Well setting it to 0 is means you are not using any VLANs, setting it to All(4095) means that you plan a VLAN between those 4095.

    If you are not tagging any VLAN in a portgroup it is pointless to use that option.



  • 4.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 09:13 AM

    Hi,


    I don't entirely agree with this, setting in ESXi "0" as VLAN ID means "untagged" ethernet frame which is not the same as saying no VLANs are used in the context of a network infrastructure. What the OP asked is how to pass traffic corresponding to all possible VLANs to a virtual machine without the latter having to know how to handle them: I don't want the "thing-related-that-would-apply-here" messing with the traffic.


    Regards,
    Ferdinando



  • 5.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 09:34 AM

    , I agree, and it was a misleading phrase. Because you still can use aLAN untagged.

    As I said in the second paragraph, if it is not tagged, there is no use for All VLANs



  • 6.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 09:52 AM

    Comment removed...



  • 7.  RE: Is it 0 or 4095 to bridge L2?

    Posted May 16, 2023 11:24 AM

    No issue, but this is more precise.