[  519.963964] bond0: (slave eth0): making interface the new active one
[  519.964047] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.176434] bond0: (slave eth0): Releasing backup interface
[  524.258871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.398299] bond0: (slave eth0): Releasing backup interface
[  528.427099] bond0 (unregistering): Released all slaves