[  519.296673] bond0: (slave eth0): making interface the new active one
[  519.296770] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.469261] bond0: (slave eth0): Releasing backup interface
[  523.545872] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.697600] bond0: (slave eth0): Releasing backup interface
[  527.730549] bond0 (unregistering): Released all slaves