···88========991010The net_failover driver provides an automated failover mechanism via APIs1111-to create and destroy a failover master netdev and mananges a primary and1111+to create and destroy a failover master netdev and manages a primary and1212standby slave netdevs that get registered via the generic failover1313-infrastructrure.1313+infrastructure.14141515The failover netdev acts a master device and controls 2 slave devices. The1616original paravirtual interface is registered as 'standby' slave netdev and···2929=============================================30303131net_failover enables hypervisor controlled accelerated datapath to virtio-net3232-enabled VMs in a transparent manner with no/minimal guest userspace chanages.3232+enabled VMs in a transparent manner with no/minimal guest userspace changes.33333434To support this, the hypervisor needs to enable VIRTIO_NET_F_STANDBY3535feature on the virtio-net interface and assign the same MAC address to both