CircleID

I think some of these papers are so vague as to be almost useless.

I doubt consumer devices will ever be able to do more than say "this traffic is lower than average priority", since otherwise it is open to abuse - witness Microsoft's abuse of QoS bits in their applications - to try an obtain better than average service.

As such on the Internet side, the rules tend to be set in the router the ISP supplies (for leased lines), or the first piece of kit not under end user control.

Setting QoS bits in the first trustworthy device is precisely the "stupid network model".

I think the paper suggest the same concept as cross-layer QoS… perhaps you should read more about this topic.. Cross-layer QoS is necessary for a successful QoS enforcement… beside the same model is followed by the diffserv where bits are set by the application… as well as IPv6… except that in these cases the intentional abuse or innocent mistake could cause drastic failure for the QoS enforcement over the network