[  521.212736] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  521.226642] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  521.241572] br0: port 1(veth0) entered blocking state
[  521.241667] br0: port 1(veth0) entered disabled state
[  521.241737] veth0: entered allmulticast mode
[  521.241821] veth0: entered promiscuous mode
[  521.256374] br0: port 2(veth1) entered blocking state
[  521.256430] br0: port 2(veth1) entered disabled state
[  521.256472] veth1: entered allmulticast mode
[  521.256538] veth1: entered promiscuous mode
[  521.460732] br0: port 1(veth0) entered blocking state
[  521.460792] br0: port 1(veth0) entered forwarding state
[  521.460869] br0: port 2(veth1) entered blocking state
[  521.460919] br0: port 2(veth1) entered forwarding state
[  523.260755] bond0: (slave veth1): link status definitely up
[  523.260888] bond0: (slave veth1): making interface the new active one
[  523.260964] bond0: active interface up!
[  523.384455] veth1: left allmulticast mode
[  523.384518] veth1: left promiscuous mode
[  523.384578] br0: port 2(veth1) entered disabled state
[  523.384723] veth0: left allmulticast mode
[  523.384768] veth0: left promiscuous mode
[  523.384816] br0: port 1(veth0) entered disabled state
[  523.410070] bond0: (slave veth1): Releasing backup interface
[  523.416890] bond0: (slave veth0): Releasing backup interface