[  519.641899] bond0: (slave eth0): making interface the new active one
[  519.641990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.788428] bond0: (slave eth0): Releasing backup interface
[  523.851659] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.014080] bond0: (slave eth0): Releasing backup interface
[  528.040076] bond0 (unregistering): Released all slaves