[  517.453388] bond0: (slave eth0): making interface the new active one
[  517.453477] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.618068] bond0: (slave eth0): Releasing backup interface
[  521.687383] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.844369] bond0: (slave eth0): Releasing backup interface
[  525.863339] bond0 (unregistering): Released all slaves