[  517.775261] bond0: (slave eth0): making interface the new active one
[  517.775343] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.931606] bond0: (slave eth0): Releasing backup interface
[  522.008698] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.156234] bond0: (slave eth0): Releasing backup interface
[  526.187200] bond0 (unregistering): Released all slaves