[  513.356626] bond0: (slave eth0): making interface the new active one
[  513.356735] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.520018] bond0: (slave eth0): Releasing backup interface
[  517.595739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.746298] bond0: (slave eth0): Releasing backup interface
[  521.778357] bond0 (unregistering): Released all slaves