[  520.189713] bond0: (slave eth0): making interface the new active one
[  520.189792] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.364115] bond0: (slave eth0): Releasing backup interface
[  524.427074] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.589172] bond0: (slave eth0): Releasing backup interface
[  528.623150] bond0 (unregistering): Released all slaves