[  517.852512] bond0: (slave eth0): making interface the new active one
[  517.852589] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.073396] bond0: (slave eth0): Releasing backup interface
[  522.179962] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.362023] bond0: (slave eth0): Releasing backup interface
[  526.393976] bond0 (unregistering): Released all slaves