[  521.677480] bond0: (slave eth0): making interface the new active one
[  521.677573] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.833282] bond0: (slave eth0): Releasing backup interface
[  525.901307] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.062630] bond0: (slave eth0): Releasing backup interface
[  530.103447] bond0 (unregistering): Released all slaves