gianlucab wrote:
Esxi need to use a vmkernel as dedicated nic so doesn't permit to tag other vlan ad use the 'same nic 'for other treffic in other vscwitch' ?
There are no requirement to have a dedicated nic for anything actually. You could run Management, vMotion, iSCSI, NFS and VM traffic all over a single physical NIC port.
However, since this would make many important functions dependable of the network usage rate of the others this is most often seen as a bad practice.
A common way to set up the vSwitch0 is:
Attach two "vmnics" = physical nic ports, use default NIC teaming Port ID, make no link aggregation at physical switch.
VMK0 - management - vmnic0 active, vmnicX standby
VMK0 - vMotion (other IP range!) - vmnic0 standby, vmnicX active
If possible use a separate and isolated VLAN for the vMotion network, and if already having a management network put the VMK management interface on that management VLAN as well.