[  519.304054] bond0: (slave eth0): making interface the new active one
[  519.304156] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.550747] bond0: (slave eth0): Releasing backup interface
[  523.665351] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.835011] bond0: (slave eth0): Releasing backup interface
[  527.872016] bond0 (unregistering): Released all slaves