[  521.970278] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  521.985093] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  521.998000] br0: port 1(veth0) entered blocking state
[  521.998052] br0: port 1(veth0) entered disabled state
[  521.998094] veth0: entered allmulticast mode
[  521.998159] veth0: entered promiscuous mode
[  522.012783] br0: port 2(veth1) entered blocking state
[  522.012837] br0: port 2(veth1) entered disabled state
[  522.012877] veth1: entered allmulticast mode
[  522.012941] veth1: entered promiscuous mode
[  522.237719] br0: port 1(veth0) entered blocking state
[  522.237807] br0: port 1(veth0) entered forwarding state
[  522.237879] br0: port 2(veth1) entered blocking state
[  522.237920] br0: port 2(veth1) entered forwarding state
[  524.022687] bond0: (slave veth1): link status definitely up
[  524.022749] bond0: (slave veth1): making interface the new active one
[  524.022809] bond0: active interface up!
[  524.168232] veth1: left allmulticast mode
[  524.168287] veth1: left promiscuous mode
[  524.168330] br0: port 2(veth1) entered disabled state
[  524.168421] veth0: left allmulticast mode
[  524.168469] veth0: left promiscuous mode
[  524.168514] br0: port 1(veth0) entered disabled state
[  524.191958] bond0: (slave veth1): Releasing backup interface
[  524.198895] bond0: (slave veth0): Releasing backup interface