To add vSAN witness traffic to a vmkernel interface of a host; useful in 2-node configs where the witness traffic should traverse the management interface:
esxcli vsan network ip add -i vmk0 -T=witnessTo add vSAN witness traffic to a vmkernel interface of a host; useful in 2-node configs where the witness traffic should traverse the management interface:
esxcli vsan network ip add -i vmk0 -T=witness