[  514.440645] bond0: (slave eth0): making interface the new active one
[  514.440715] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.681598] bond0: (slave eth0): Releasing backup interface
[  518.782806] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.975893] bond0: (slave eth0): Releasing backup interface
[  523.003007] bond0 (unregistering): Released all slaves