[  513.482562] bond0: (slave eth0): making interface the new active one
[  513.482631] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.737883] bond0: (slave eth0): Releasing backup interface
[  517.852379] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.027039] bond0: (slave eth0): Releasing backup interface
[  522.055124] bond0 (unregistering): Released all slaves