[  519.010626] bond0: (slave eth0): making interface the new active one
[  519.010709] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.157934] bond0: (slave eth0): Releasing backup interface
[  523.238819] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.385220] bond0: (slave eth0): Releasing backup interface
[  527.414183] bond0 (unregistering): Released all slaves