Hey All,

I want to start off with saying I did NOT set these servers up.

I administer 2 Load Balanced Server 2012 R2 servers hosting multiple Hyper-V instances each. On both servers in Network Connections I see that there's 3 virtual switches and 1 cluster switch.

I simply need to figure out which NIC is being used by the host so that I can finish setting up a cloud backup. The only solution I've come across yet is to disconnect the ethernet to each NIC individually and see if the host can get to the internet. But that's not practical until the weekend (a time which I prefer not to work).

So, is the cluster switch the NIC that the host is using or is that not necessarily true?

On the primary server the cluster switch appears to be the hosts NIC. It has a static IP address and it has a reservation in DHCP. It's the only one of the NIC's on either server with a static IP. Doing an nslookup on the primary server by hostname resolves to that IP address. However, on the secondary server when doing an nslookup, it resolves to the IP address of all 4 NIC's. If I ping the hostname of the secondary server it returns only one IP address. Is that the correct IP address or not?

Thanks for your help in advance.

Hi Sir,

Sorry for the dealy .

Please run the following command to check what physical NIC was bound to external virtual switch:

PS C:\Users\administrator.SERVERLAB> get-vmswitch

Name                        SwitchType NetAdapterInterfaceDescription
----                        ---------- ------------------------------
Internal                    Internal
New Virtual Switch for andy Internal
qostest                     Internal
team2                       Internal
External                    External   Intel(R) 82579LM Gigabit Network Connection

Best Regards,

Elton Ji