[  519.062188] bond0: (slave eth0): making interface the new active one
[  519.062332] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.215304] bond0: (slave eth0): Releasing backup interface
[  523.289976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.439948] bond0: (slave eth0): Releasing backup interface
[  527.475922] bond0 (unregistering): Released all slaves