[  519.190356] bond0: (slave eth0): making interface the new active one
[  519.190448] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.424369] bond0: (slave eth0): Releasing backup interface
[  523.542721] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.779340] bond0: (slave eth0): Releasing backup interface
[  527.821128] bond0 (unregistering): Released all slaves