[  519.490946] bond0: (slave eth0): making interface the new active one
[  519.491023] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.655214] bond0: (slave eth0): Releasing backup interface
[  523.728697] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.888865] bond0: (slave eth0): Releasing backup interface
[  527.916449] bond0 (unregistering): Released all slaves