vMotion with 40GbE NIC

One fact I discovered recently is that when you use 40GbE NIC for vMotion is that only a single vmkernel port can´t use the full 40gig potential.

One VMkernel port will only bring 18 GbE throughput, the second VMkernel port increases the throughput up to 28 GbE and the third VMkernel port increases the performance to 36 GbE.

So to get the full potential out of one 40 GbE you need to configure 3 VMkernel ports in the same subnet.

The official VMware KB article: https://kb.vmware.com/s/article/2108824