[  521.838341] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  521.848203] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  521.857019] br0: port 1(veth0) entered blocking state
[  521.857070] br0: port 1(veth0) entered disabled state
[  521.857129] veth0: entered allmulticast mode
[  521.857201] veth0: entered promiscuous mode
[  521.866361] br0: port 2(veth1) entered blocking state
[  521.866420] br0: port 2(veth1) entered disabled state
[  521.866467] veth1: entered allmulticast mode
[  521.866538] veth1: entered promiscuous mode
[  521.965224] br0: port 1(veth0) entered blocking state
[  521.965304] br0: port 1(veth0) entered forwarding state
[  521.965380] br0: port 2(veth1) entered blocking state
[  521.965423] br0: port 2(veth1) entered forwarding state
[  523.901221] bond0: (slave veth1): link status definitely up
[  523.901370] bond0: (slave veth1): making interface the new active one
[  523.901466] bond0: active interface up!
[  524.001524] veth1: left allmulticast mode
[  524.001579] veth1: left promiscuous mode
[  524.001629] br0: port 2(veth1) entered disabled state
[  524.001776] veth0: left allmulticast mode
[  524.001825] veth0: left promiscuous mode
[  524.001867] br0: port 1(veth0) entered disabled state
[  524.026461] bond0: (slave veth1): Releasing backup interface
[  524.040356] bond0: (slave veth0): Releasing backup interface