[  513.196970] bond0: (slave eth0): making interface the new active one
[  513.197043] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.396334] bond0: (slave eth0): Releasing backup interface
[  517.477377] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.624183] bond0: (slave eth0): Releasing backup interface
[  521.647152] bond0 (unregistering): Released all slaves