I think I found what you are looking for.
[root@hawk:~] esxcfg-vswitch -l
Switch Name Num Ports Used Ports Configured Ports MTU Uplinks
vSwitch0 2212 16 128 1500 vmnic1,vmnic0,vmnic2
PortGroup Name VLAN ID Used Ports Uplinks
DMZ 4 3 vmnic1,vmnic0,vmnic2
Management Network 0 1 vmnic1,vmnic0,vmnic2
VM Network 3 4 vmnic1,vmnic0,vmnic2
ESXi Backend Network 3 1 vmnic1,vmnic0,vmnic2
[root@hawk:~] esxcli network vswitch standard list
vSwitch0
Name: vSwitch0
Class: etherswitch
Num Ports: 2212
Used Ports: 16
Configured Ports: 128
MTU: 1500
CDP Status: listen
Beacon Enabled: false
Beacon Interval: 1
Beacon Threshold: 3
Beacon Required By:
Uplinks: vmnic2, vmnic0, vmnic1
Portgroups: DMZ, Management Network, VM Network, ESXi Backend Network
vmnic0: onboad ethernet (oddly enough it detected it and when connected it shows as active)
vmnic1: Old PCIE NIC
vmnic2: New PCIE NNIC