[  513.594683] bond0: (slave eth0): making interface the new active one
[  513.594772] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.772976] bond0: (slave eth0): Releasing backup interface
[  517.850843] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.001142] bond0: (slave eth0): Releasing backup interface
[  522.040133] bond0 (unregistering): Released all slaves