Hyper-V Network Virtual Switches 101

So you’ve spun up a Windows 2012R2 machine with Hyper-V installed and ready to go. However, now you’re stuck and not sure which type of  Network Virtual Switch (vSwitch) applies to your environment(s)…

In Windows 2012R2, Hyper-V’s network virtual switch runs at Layer 2 (Data Link layer). If you are unfamiliar with this, or either terms, I suggest good old Wikipedia. 🙂 Layer 2 maintains a MAC address table contains the MAC addresses of all the virtual machines (VMs) connected to it. The switch determines where to direct/redirect the packets to based on MAC addresses. It should be noted, in Hyper-V, you can have an unlimited amount of VMs connected to this vSwitch.

In Hyper-V you have three types of Network Virtual Switches: External, Internal and Private. All have similar….

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