[  509.089257] bond0: (slave eth0): making interface the new active one
[  509.089357] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.298093] bond0: (slave eth0): Releasing backup interface
[  513.368600] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.528534] bond0: (slave eth0): Releasing backup interface
[  517.553348] bond0 (unregistering): Released all slaves