[  517.779608] bond0: (slave eth0): making interface the new active one
[  517.779739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.938538] bond0: (slave eth0): Releasing backup interface
[  522.005107] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.164493] bond0: (slave eth0): Releasing backup interface
[  526.191462] bond0 (unregistering): Released all slaves