[  519.599314] bond0: (slave eth0): making interface the new active one
[  519.599403] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.800198] bond0: (slave eth0): Releasing backup interface
[  523.876924] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.026950] bond0: (slave eth0): Releasing backup interface
[  528.053218] bond0 (unregistering): Released all slaves