[  505.311295] bond0: (slave eth0): making interface the new active one
[  505.311387] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.522164] bond0: (slave eth0): Releasing backup interface
[  509.602099] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.749566] bond0: (slave eth0): Releasing backup interface
[  513.770471] bond0 (unregistering): Released all slaves