[  513.671505] bond0: (slave eth0): making interface the new active one
[  513.671609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.850074] bond0: (slave eth0): Releasing backup interface
[  517.941670] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.144274] bond0: (slave eth0): Releasing backup interface
[  522.172348] bond0 (unregistering): Released all slaves