[  519.225551] bond0: (slave eth0): making interface the new active one
[  519.225635] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.401305] bond0: (slave eth0): Releasing backup interface
[  523.478085] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.628747] bond0: (slave eth0): Releasing backup interface
[  527.660615] bond0 (unregistering): Released all slaves