[  514.381961] bond0: (slave eth0): making interface the new active one
[  514.382040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.615458] bond0: (slave eth0): Releasing backup interface
[  518.718058] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.904055] bond0: (slave eth0): Releasing backup interface
[  522.934996] bond0 (unregistering): Released all slaves