2 network cards on server

Hello People

I am having a slight issues configuring the 2 network cards on my server

I have a onboard network card and a additonal one and both cards have been detected on the network connections

The operating system i am running in windows serve 2012 which has the hyper v console on it, my aim is to run virtual machines on hyper v

I was told i should use one network card for the physical host and the 2nd network card for the virtual machines. Im not sure how to set this up or if i have set this up

I have created a virtual switch on hyper v and have selected which network card will be used for the virtual machines, however in network connections only one network card seems active how do i know which card is being used for the physcial or if its been used or shared with the virtual host.

This seems very confusing and i would appreciate your help

Thanks

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