[  516.514821] bond0: (slave eth0): making interface the new active one
[  516.514918] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.738626] bond0: (slave eth0): Releasing backup interface
[  520.870793] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.079961] bond0: (slave eth0): Releasing backup interface
[  525.104920] bond0 (unregistering): Released all slaves