Hypervisor active-backup bonding failover results in loss of guest network connectivity

Issue

• Hypervisor active-backup bonding failover results in loss of guest network connectivity
• When the cable is disconnected between the switch and the active bonding device of dom0, domU stops responding to ICMP packet although dom0 continues to respond. Why?
• Temporary inbound guest communication failure upon bond link failover at the host
• KVM bond failover results in VM unavailable
• When a network bond (mode 1) does a failover, as long as no traffic comes from the VM after the failover, the VM is not reachable from outside. To me it seems like a gratuitous ARP is missing after failover.
• Virtual guests disappear or unreachable from LAN after link down event on virtual machine host.