[  508.826040] bond0: (slave eth0): making interface the new active one
[  508.826111] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.048409] bond0: (slave eth0): Releasing backup interface
[  513.158980] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.331788] bond0: (slave eth0): Releasing backup interface
[  517.372740] bond0 (unregistering): Released all slaves