[  519.410324] bond0: (slave eth0): making interface the new active one
[  519.410421] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.600134] bond0: (slave eth0): Releasing backup interface
[  523.672556] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.823004] bond0: (slave eth0): Releasing backup interface
[  527.859039] bond0 (unregistering): Released all slaves