[  515.225531] bond0: (slave eth0): making interface the new active one
[  515.225663] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.448215] bond0: (slave eth0): Releasing backup interface
[  519.553785] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.732870] bond0: (slave eth0): Releasing backup interface
[  523.764842] bond0 (unregistering): Released all slaves