[  520.620369] bond0: (slave eth0): making interface the new active one
[  520.620452] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.808789] bond0: (slave eth0): Releasing backup interface
[  524.873574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.034826] bond0: (slave eth0): Releasing backup interface
[  529.055757] bond0 (unregistering): Released all slaves