[  519.036966] bond0: (slave eth0): making interface the new active one
[  519.037070] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.289672] bond0: (slave eth0): Releasing backup interface
[  523.390244] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.575226] bond0: (slave eth0): Releasing backup interface
[  527.601256] bond0 (unregistering): Released all slaves