[  519.343374] bond0: (slave eth0): making interface the new active one
[  519.343499] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.539997] bond0: (slave eth0): Releasing backup interface
[  523.621144] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.764167] bond0: (slave eth0): Releasing backup interface
[  527.795174] bond0 (unregistering): Released all slaves