[  517.536972] bond0: (slave eth0): making interface the new active one
[  517.537040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.742785] bond0: (slave eth0): Releasing backup interface
[  521.825111] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.977298] bond0: (slave eth0): Releasing backup interface
[  526.010760] bond0 (unregistering): Released all slaves