[  502.921276] bond0: (slave eth0): making interface the new active one
[  502.921354] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.105509] bond0: (slave eth0): Releasing backup interface
[  507.177785] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.332571] bond0: (slave eth0): Releasing backup interface
[  511.369431] bond0 (unregistering): Released all slaves