[  721.482521] 8021q: adding VLAN 0 to HW filter on device bond0
[  721.495553] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  721.508185] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  721.521068] br0: port 1(veth0) entered blocking state
[  721.521158] br0: port 1(veth0) entered disabled state
[  721.521228] veth0: entered allmulticast mode
[  721.521340] veth0: entered promiscuous mode
[  721.532365] br0: port 2(veth1) entered blocking state
[  721.532482] br0: port 2(veth1) entered disabled state
[  721.532562] veth1: entered allmulticast mode
[  721.532681] veth1: entered promiscuous mode
[  722.459981] br0: port 1(veth0) entered blocking state
[  722.460089] br0: port 1(veth0) entered forwarding state
[  722.460164] br0: port 2(veth1) entered blocking state
[  722.460204] br0: port 2(veth1) entered forwarding state
[  723.547979] bond0: (slave veth1): link status definitely up
[  723.548120] bond0: (slave veth1): making interface the new active one
[  723.548220] bond0: active interface up!
[  723.618287] veth1: left allmulticast mode
[  723.618424] veth1: left promiscuous mode
[  723.618509] br0: port 2(veth1) entered disabled state
[  723.618644] veth0: left allmulticast mode
[  723.618726] veth0: left promiscuous mode
[  723.618787] br0: port 1(veth0) entered disabled state
[  723.635561] bond0: (slave veth1): Releasing backup interface
[  723.644181] bond0: (slave veth0): Releasing backup interface