[  519.137880] bond0: (slave eth0): making interface the new active one
[  519.137966] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.349299] bond0: (slave eth0): Releasing backup interface
[  523.448112] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.637718] bond0: (slave eth0): Releasing backup interface
[  527.671682] bond0 (unregistering): Released all slaves