[  509.169573] bond0: (slave eth0): making interface the new active one
[  509.169655] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.352348] bond0: (slave eth0): Releasing backup interface
[  513.420728] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.578575] bond0: (slave eth0): Releasing backup interface
[  517.612401] bond0 (unregistering): Released all slaves