[  513.622700] bond0: (slave eth0): making interface the new active one
[  513.622762] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.850554] bond0: (slave eth0): Releasing backup interface
[  517.940645] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.129941] bond0: (slave eth0): Releasing backup interface
[  522.153871] bond0 (unregistering): Released all slaves