[  509.052638] bond0: (slave eth0): making interface the new active one
[  509.052731] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.230241] bond0: (slave eth0): Releasing backup interface
[  513.309380] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.465017] bond0: (slave eth0): Releasing backup interface
[  517.490689] bond0 (unregistering): Released all slaves