[  514.242941] bond0: (slave eth0): making interface the new active one
[  514.243040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.425454] bond0: (slave eth0): Releasing backup interface
[  518.546717] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.719626] bond0: (slave eth0): Releasing backup interface
[  522.750134] bond0 (unregistering): Released all slaves