span><a class="self-link" href="#model"></a></h2>
   <p>Many applications have multiple media flows of the same data type and
often some of the flows are more important than others. WebRTC uses the
priority and Quality of Service (QoS) framework described in
<a data-link-type="biblio" href="#biblio-rfc8835" title="Transports for WebRTC">[rfc8835]</a> and <a data-link-type="biblio" href="#biblio-rfc8837" title="Differentiated Services Code Point (DSCP) Packet Markings for WebRTC QoS">[rfc8837]</a> to provide