[  513.921020] bond0: (slave eth0): making interface the new active one
[  513.921101] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.106257] bond0: (slave eth0): Releasing backup interface
[  518.209975] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.397057] bond0: (slave eth0): Releasing backup interface
[  522.425008] bond0 (unregistering): Released all slaves