Note that in many deployments, real-time traffic is directed into distinct queues via Differentiated Services Code Points (DSCP) or other mechanisms, which substantially reduces the interplay with other traffic. However, a proposal targeting Internet use MUST NOT assume that all paths support specific mechanisms.
Although there are clearly a number of network especially access networks that do deploy and use DSCP classes for its real-time media traffic I think this sentence is misleading. I would think that the majority of the WebRTC traffic carrying audio and video will in fact not be marked or have DSCP markings that survive into the general Internet. I would at least suggest to rewrite the above first sentence to indicate that although this may occur, the CC algorithm under consideration will have to deal with this type of traffic.
From @gloinul's review:
Section 3.2.2:
Although there are clearly a number of network especially access networks that do deploy and use DSCP classes for its real-time media traffic I think this sentence is misleading. I would think that the majority of the WebRTC traffic carrying audio and video will in fact not be marked or have DSCP markings that survive into the general Internet. I would at least suggest to rewrite the above first sentence to indicate that although this may occur, the CC algorithm under consideration will have to deal with this type of traffic.