[  519.193197] bond0: (slave eth0): making interface the new active one
[  519.193290] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.483738] bond0: (slave eth0): Releasing backup interface
[  523.604024] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.836115] bond0: (slave eth0): Releasing backup interface
[  527.870057] bond0 (unregistering): Released all slaves