[  516.009885] bond0: (slave eth0): making interface the new active one
[  516.009979] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.218589] bond0: (slave eth0): Releasing backup interface
[  520.328768] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.497094] bond0: (slave eth0): Releasing backup interface
[  524.526977] bond0 (unregistering): Released all slaves