[  519.426986] bond0: (slave eth0): making interface the new active one
[  519.427066] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.595239] bond0: (slave eth0): Releasing backup interface
[  523.666284] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.820699] bond0: (slave eth0): Releasing backup interface
[  527.846335] bond0 (unregistering): Released all slaves