[  516.869572] bond0: (slave eth0): making interface the new active one
[  516.869662] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.123950] bond0: (slave eth0): Releasing backup interface
[  521.235902] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.413129] bond0: (slave eth0): Releasing backup interface
[  525.446982] bond0 (unregistering): Released all slaves