[  509.476589] bond0: (slave eth0): making interface the new active one
[  509.476679] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.687526] bond0: (slave eth0): Releasing backup interface
[  513.787444] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.968965] bond0: (slave eth0): Releasing backup interface
[  517.992922] bond0 (unregistering): Released all slaves