[  515.429728] bond0: (slave eth0): making interface the new active one
[  515.429853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.867031] bond0: (slave eth0): Releasing backup interface
[  520.069732] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.317915] bond0: (slave eth0): Releasing backup interface
[  524.345908] bond0 (unregistering): Released all slaves