[  517.283503] bond0: (slave eth0): making interface the new active one
[  517.283580] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.421333] bond0: (slave eth0): Releasing backup interface
[  521.478981] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.656549] bond0: (slave eth0): Releasing backup interface
[  525.679472] bond0 (unregistering): Released all slaves