[  513.584129] bond0: (slave eth0): making interface the new active one
[  513.584256] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.773801] bond0: (slave eth0): Releasing backup interface
[  517.848970] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.008398] bond0: (slave eth0): Releasing backup interface
[  522.043407] bond0 (unregistering): Released all slaves