Command to Retrieve Physical Switch Name and Port Numbers to which a particular ESXi host vmnics are connected

vim-cmd hostsvc/net/query_networkhint  | grep -i [Dp][eo][vr][It] |grep -v Capa | grep -v connected

Output format would be:

device = "vmnicX",
         devId = "SwitchName",
         portId = "GigabitEthernetX/Y"