[  519.242668] bond0: (slave eth0): making interface the new active one
[  519.242799] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.412254] bond0: (slave eth0): Releasing backup interface
[  523.490569] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.641710] bond0: (slave eth0): Releasing backup interface
[  527.679249] bond0 (unregistering): Released all slaves