[  512.980184] bond0: (slave eth0): making interface the new active one
[  512.980271] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.215083] bond0: (slave eth0): Releasing backup interface
[  517.329602] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.502363] bond0: (slave eth0): Releasing backup interface
[  521.528045] bond0 (unregistering): Released all slaves