[  515.876431] bond0: (slave eth0): making interface the new active one
[  515.876514] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.093731] bond0: (slave eth0): Releasing backup interface
[  520.188817] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.367959] bond0: (slave eth0): Releasing backup interface
[  524.408887] bond0 (unregistering): Released all slaves