[  519.358576] bond0: (slave eth0): making interface the new active one
[  519.358643] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.527451] bond0: (slave eth0): Releasing backup interface
[  523.580223] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.752960] bond0: (slave eth0): Releasing backup interface
[  527.789929] bond0 (unregistering): Released all slaves