[  519.092874] bond0: (slave eth0): making interface the new active one
[  519.092940] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.275676] bond0: (slave eth0): Releasing backup interface
[  523.343609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.497379] bond0: (slave eth0): Releasing backup interface
[  527.514269] bond0 (unregistering): Released all slaves