[  519.322754] bond0: (slave eth0): making interface the new active one
[  519.322835] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.480475] bond0: (slave eth0): Releasing backup interface
[  523.556343] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.707270] bond0: (slave eth0): Releasing backup interface
[  527.749184] bond0 (unregistering): Released all slaves