[  513.148303] bond0: (slave eth0): making interface the new active one
[  513.148379] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.401130] bond0: (slave eth0): Releasing backup interface
[  517.504352] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.695076] bond0: (slave eth0): Releasing backup interface
[  521.725974] bond0 (unregistering): Released all slaves