[  520.564775] bond0: (slave eth0): making interface the new active one
[  520.564883] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.747726] bond0: (slave eth0): Releasing backup interface
[  524.819167] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.972844] bond0: (slave eth0): Releasing backup interface
[  528.994810] bond0 (unregistering): Released all slaves