Options for Attaching the VM-Series on the Network

With a Linux bridge or OVS, data traffic uses the software bridge to connect guests on the same host. For external connectivity, data traffic uses the physical interface to which the bridge is attached.
With PCI passthrough, data traffic is passed directly between the guest and the physical interface to which it is attached. When the interface is attached to a guest, it is not available to the host or to other guests on the host.
With SR-IOV, data traffic is passed directly between the guest and the virtual function to which it is attached.