[  502.585582] bond0: (slave eth0): making interface the new active one
[  502.585667] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.763267] bond0: (slave eth0): Releasing backup interface
[  506.842941] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.991412] bond0: (slave eth0): Releasing backup interface
[  511.027360] bond0 (unregistering): Released all slaves