[  517.589407] bond0: (slave eth0): making interface the new active one
[  517.589490] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.824677] bond0: (slave eth0): Releasing backup interface
[  521.941783] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.104134] bond0: (slave eth0): Releasing backup interface
[  526.130165] bond0 (unregistering): Released all slaves