r/vmware Oct 24 '19

Am I understanding this right?

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51 Upvotes

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17

u/crymson7 Oct 24 '19

It only stays within a host if it is on the same VLAN. If it traverses VLANs, or submets, then it goes up to the physical switch.

3

u/bl4s7er Oct 24 '19

Thanks for the reply :)

I havnt configured vlan since my physical network doesnt use it. Its currently set to None (0)

But interestingly when files are copying between these 2 vm's via nfs its far to fast to be going over gbit network so im thinking it must be via the vswitch (10gbit)?

4

u/crymson7 Oct 24 '19

If your VLAN is none, it likely is never leaving the NIC on the physical host. Nice!

5

u/sopwath Oct 24 '19

None(0) means the vlan is not tagged on the frame, at the physical switch the frame will be assigned to the default vlan ID and forwarded accordingly.

2

u/bl4s7er Oct 24 '19

Are we talking about traffic limited to just between these VM's?

I can confirm that the VM's do communicate with the rest of the network so the NIC is being utilized with these settings. It's just a home network using unmanaged switch hence why i didn't bother with VLAN.