[  501.393357] bond0: (slave eth0): making interface the new active one
[  501.393449] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.548478] bond0: (slave eth0): Releasing backup interface
[  505.635422] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.841021] bond0: (slave eth0): Releasing backup interface
[  509.867423] bond0 (unregistering): Released all slaves