[  519.226231] bond0: (slave eth0): making interface the new active one
[  519.226313] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.379391] bond0: (slave eth0): Releasing backup interface
[  523.473079] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.667238] bond0: (slave eth0): Releasing backup interface
[  527.703177] bond0 (unregistering): Released all slaves