[  521.386899] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  521.399784] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  521.412860] br0: port 1(veth0) entered blocking state
[  521.412923] br0: port 1(veth0) entered disabled state
[  521.412968] veth0: entered allmulticast mode
[  521.413046] veth0: entered promiscuous mode
[  521.427783] br0: port 2(veth1) entered blocking state
[  521.427852] br0: port 2(veth1) entered disabled state
[  521.427894] veth1: entered allmulticast mode
[  521.427973] veth1: entered promiscuous mode
[  522.363755] br0: port 1(veth0) entered blocking state
[  522.363868] br0: port 1(veth0) entered forwarding state
[  522.363933] br0: port 2(veth1) entered blocking state
[  522.363977] br0: port 2(veth1) entered forwarding state
[  523.451800] bond0: (slave veth1): link status definitely up
[  523.451919] bond0: (slave veth1): making interface the new active one
[  523.452011] bond0: active interface up!
[  523.537544] veth1: left allmulticast mode
[  523.537600] veth1: left promiscuous mode
[  523.537643] br0: port 2(veth1) entered disabled state
[  523.537776] veth0: left allmulticast mode
[  523.537808] veth0: left promiscuous mode
[  523.537845] br0: port 1(veth0) entered disabled state
[  523.578023] bond0: (slave veth1): Releasing backup interface
[  523.584919] bond0: (slave veth0): Releasing backup interface