[  511.701994] bond0: (slave eth0): making interface the new active one
[  511.702065] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.927252] bond0: (slave eth0): Releasing backup interface
[  516.038920] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.212032] bond0: (slave eth0): Releasing backup interface
[  520.246949] bond0 (unregistering): Released all slaves