[  514.491940] bond0: (slave eth0): making interface the new active one
[  514.492020] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.686516] bond0: (slave eth0): Releasing backup interface
[  518.797425] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.975124] bond0: (slave eth0): Releasing backup interface
[  523.011808] bond0 (unregistering): Released all slaves