[  511.699711] bond0: (slave eth0): making interface the new active one
[  511.699796] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.930166] bond0: (slave eth0): Releasing backup interface
[  516.029207] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.220960] bond0: (slave eth0): Releasing backup interface
[  520.244925] bond0 (unregistering): Released all slaves