To provide physical NIC redundancy for all network services, a minimum of four uplinks or physical NICs must be dedicated per ESXi host.

Two virtual switch types are required per host, each connecting to a set of two physical NICs.

The physical NICs should connect to a pair of Top-of-Rack switches (ToR-switches). All required VLANs must be trunked to the physical NICs of the ESXi hosts through 802.1Q network trunks.