[  505.143031] bond0: (slave eth0): making interface the new active one
[  505.143388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.407859] bond0: (slave eth0): Releasing backup interface
[  509.499643] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.693510] bond0: (slave eth0): Releasing backup interface
[  513.722411] bond0 (unregistering): Released all slaves