[  505.718733] bond0: (slave eth0): making interface the new active one
[  505.718817] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.899802] bond0: (slave eth0): Releasing backup interface
[  509.972251] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.131416] bond0: (slave eth0): Releasing backup interface
[  514.166353] bond0 (unregistering): Released all slaves