[  514.431181] bond0: (slave eth0): making interface the new active one
[  514.431268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.680908] bond0: (slave eth0): Releasing backup interface
[  518.803257] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.034117] bond0: (slave eth0): Releasing backup interface
[  523.063717] bond0 (unregistering): Released all slaves