[  514.863078] bond0: (slave eth0): making interface the new active one
[  514.863156] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.067465] bond0: (slave eth0): Releasing backup interface
[  519.172103] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.352130] bond0: (slave eth0): Releasing backup interface
[  523.400046] bond0 (unregistering): Released all slaves