[  516.148609] bond0: (slave eth0): making interface the new active one
[  516.148686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.346996] bond0: (slave eth0): Releasing backup interface
[  520.448599] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.635080] bond0: (slave eth0): Releasing backup interface
[  524.664027] bond0 (unregistering): Released all slaves