Getting the layout of the lab network clear is going to save a lot of confusion, I came up with this, the idea is to represent hosts with x2 1GB embedded nics and x2 10Gb nics.
This would be built left to right;
1. create the port groups on the physical host
2. create the nested dvs and add nested vmnics
3. add nested hosts
Once built it should look like this…
Finally, change the MTU to 1600 for each dVS, this assumes your physical host portgroup is also 1600, and in promiscuous mode