[  517.066978] bond0: (slave eth0): making interface the new active one
[  517.067067] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.312839] bond0: (slave eth0): Releasing backup interface
[  521.410753] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.594908] bond0: (slave eth0): Releasing backup interface
[  525.611907] bond0 (unregistering): Released all slaves