[  513.158202] bond0: (slave eth0): making interface the new active one
[  513.158269] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.327183] bond0: (slave eth0): Releasing backup interface
[  517.398522] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.558230] bond0: (slave eth0): Releasing backup interface
[  521.584136] bond0 (unregistering): Released all slaves