i am a bit confused. Maybe you can help me sort some things out.

In scenario 1, Different vswitches, same PortGroup and VLAN.

Different switches i understand, but same Portgroup? How can you have the same Portgroup on 2 different vswitches? Or does it matter? I

thought regardsless of name of portgroups and VLAN, 2 switches configured with each one has a seperate pNIC would allways end up that the

traffic be returned by the physical switch outside esx server. Please help me understand this.

In scenarion 2, Same vSwitch, Different portgroup, different Vlan.

Its a bit confusing, you mention Portgroup 20 and Portgroup 17, do you mean VLAN 20 and VLAN 17, and instead Portgroup A and Portgroup B?

So i understand it this way, you have one vswitch with 2 Portgroups defined, Port-Group A and Port-Group B. VM-A connects to Portgroup A

and VM-B connects to Portgroup B. Portgroup A has VLAN ID: 20 and Portgroup B has VLAN ID:17

What happens if both Portgroups have same VLAN ID ? Does it matter?

In scenarion 3, Same vSwitch, same Portgroup, same VLAN.

This is clear to me, just was a little bit confused of the 2 Grafical boxes basically showing the same Portgroup.

Thanks for helping me understanding this better.

regards

Harry

Thanks for the article. Do you have a visual representation of each scenario?