[  521.490939] bond0: (slave eth0): making interface the new active one
[  521.491034] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.643835] bond0: (slave eth0): Releasing backup interface
[  525.714241] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.870191] bond0: (slave eth0): Releasing backup interface
[  529.912206] bond0 (unregistering): Released all slaves