[  836.900540] 8021q: adding VLAN 0 to HW filter on device bond0
[  836.904403] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  836.908209] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  836.912013] br0: port 1(veth0) entered blocking state
[  836.912050] br0: port 1(veth0) entered disabled state
[  836.912091] veth0: entered allmulticast mode
[  836.912152] veth0: entered promiscuous mode
[  836.915899] br0: port 2(veth1) entered blocking state
[  836.915938] br0: port 2(veth1) entered disabled state
[  836.915979] veth1: entered allmulticast mode
[  836.916026] veth1: entered promiscuous mode
[  837.288008] br0: port 1(veth0) entered blocking state
[  837.288098] br0: port 1(veth0) entered forwarding state
[  837.288181] br0: port 2(veth1) entered blocking state
[  837.288246] br0: port 2(veth1) entered forwarding state
[  838.982990] bond0: (slave veth1): link status definitely up
[  838.983105] bond0: (slave veth1): making interface the new active one
[  838.983207] bond0: active interface up!
[  839.088125] veth1: left allmulticast mode
[  839.088206] veth1: left promiscuous mode
[  839.088304] br0: port 2(veth1) entered disabled state
[  839.088461] veth0: left allmulticast mode
[  839.088515] veth0: left promiscuous mode
[  839.088588] br0: port 1(veth0) entered disabled state
[  839.092180] bond0: (slave veth1): Releasing backup interface
[  839.095741] bond0: (slave veth0): Releasing backup interface
[  839.118033] bond0 (unregistering): Released all slaves