[  501.247007] bond0: (slave eth0): making interface the new active one
[  501.247091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.429975] bond0: (slave eth0): Releasing backup interface
[  505.514435] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.650221] bond0: (slave eth0): Releasing backup interface
[  509.680263] bond0 (unregistering): Released all slaves