[  517.840621] bond0: (slave eth0): making interface the new active one
[  517.840821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.079311] bond0: (slave eth0): Releasing backup interface
[  522.176454] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.358634] bond0: (slave eth0): Releasing backup interface
[  526.398226] bond0 (unregistering): Released all slaves