Networking in Hyper-V is sort of interesting for those who are used to physical networking or are used to the way networking is implemented in VMware. With Hyper-V, the guest operating systems never have direct access to the hardware, and the Hyper-V management interfaces control the traffic moving through the physical and virtual interfaces.

Hyper-V has a Virtual Network Manager. The Virtual Network Manager is responsible for creating and controlling virtual switches. There is no limit on the number of virtual switches you can create – depending on the type of virtual network you are working with. For example, external virtual networks are basically on physical NICs, so you can only have the number of external networks that is the same as the number of physical NICs.

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