[  523.504080] bond0: (slave eth0): making interface the new active one
[  523.504152] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.696630] bond0: (slave eth0): Releasing backup interface
[  527.792916] bond0: (slave eth0): Enslaving as an active interface with an up link
[  531.984671] bond0: (slave eth0): Releasing backup interface
[  532.020642] bond0 (unregistering): Released all slaves