[  520.020676] bond0: (slave eth0): making interface the new active one
[  520.020757] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.251540] bond0: (slave eth0): Releasing backup interface
[  524.358458] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.539349] bond0: (slave eth0): Releasing backup interface
[  528.572929] bond0 (unregistering): Released all slaves