AHV Networking Overview
AHV uses Open vSwitch (OVS) to connect the CVM, the hypervisor, and guest VMs to each other and to the physical network on each node. When we install AHV, an instance of OVS is created on that host and all instance of OVS across a cluster combines to form a single logical switch.
What is Open vSwitch (OVS)
OVS is an open source software switch implemented in the Linux kernel and designed to work in a multiserver virtualization environment. OVS is a layer-2 learning switch that maintains a MAC address table.