[  517.155600] bond0: (slave eth0): making interface the new active one
[  517.155676] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.369634] bond0: (slave eth0): Releasing backup interface
[  521.479745] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.658941] bond0: (slave eth0): Releasing backup interface
[  525.686764] bond0 (unregistering): Released all slaves