When using the advanced and extended network capabilities by using the Cisco Nexus 1000v distributed virtual switch the following network-related limitations.
64 ESX/ESXi hosts per VSM (Virtual Supervisor Module)
2048 virtual ethernet interfaces per VMWare vDS (virtual distributed switch)
Maximum of 216 virtual interfaces per ESX/ESXi host
2048 active VLAN’s (one to be used for communication between VEM’s and VSM)
32 physical NIC’s per ESX/ESXi (physical) host
256 port-channels per VMWare vDS (virtual distributed switch)
Maximum of 8 port-channels per ESX/ESXi host