[  516.185527] bond0: (slave eth0): making interface the new active one
[  516.185618] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.397850] bond0: (slave eth0): Releasing backup interface
[  520.471995] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.628982] bond0: (slave eth0): Releasing backup interface
[  524.659638] bond0 (unregistering): Released all slaves