[  514.485079] bond0: (slave eth0): making interface the new active one
[  514.485190] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.678594] bond0: (slave eth0): Releasing backup interface
[  518.756500] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.896290] bond0: (slave eth0): Releasing backup interface
[  522.924217] bond0 (unregistering): Released all slaves