[  520.189220] bond0: (slave eth0): making interface the new active one
[  520.189293] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.440220] bond0: (slave eth0): Releasing backup interface
[  524.555765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.733417] bond0: (slave eth0): Releasing backup interface
[  528.764134] bond0 (unregistering): Released all slaves