Creation of Virtual Port Group (standard switch)

Hi,

Can somebody confirm that I will need to create a port group for each physical host (ESXi) on the cluster?  I have 5 hosts and manage them using vCenter (6.5)  I need to create a new VLAN ID and assign that to the new port group.

Also how would I test its communication of the new created VLAN/port group besides creating a new VM and assigning the network?  Can I SSH into vCenter and ping the gateway of the new VLAN?

My lab setup is down so I just want to verify here first.

Thanks,

TT