[  519.566645] bond0: (slave eth0): making interface the new active one
[  519.566718] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.795398] bond0: (slave eth0): Releasing backup interface
[  523.881375] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.089154] bond0: (slave eth0): Releasing backup interface
[  528.112811] bond0 (unregistering): Released all slaves