[  519.151471] bond0: (slave eth0): making interface the new active one
[  519.151587] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.341405] bond0: (slave eth0): Releasing backup interface
[  523.409863] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.573451] bond0: (slave eth0): Releasing backup interface
[  527.604439] bond0 (unregistering): Released all slaves