A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the DiffServ Applied to Real-time Transports Working Group of the IETF. Title : Differentiated Services (DiffServ) and Real-time Communication Authors : David Black Paul Jones Filename : draft-ietf-dart-dscp-rtp-08.txt Pages : 26 Date : 2014-10-16 Abstract: This memo describes the interaction between Differentiated Services (DiffServ) network quality of service (QoS) functionality and real- time network communication, including communication based on the Real-time Transport Protocol (RTP). DiffServ is based on network nodes applying different forwarding treatments to packets whose IP headers are marked with different DiffServ Code Points (DSCPs). WebRTC applications, as well as some conferencing applications, have begun using the Session Description Protocol (SDP) bundle negotiation mechanism to send multiple traffic streams with different QoS requirements using the same network 5-tuple. The results of using multiple DSCPs to obtain different QoS treatments within a single network 5-tuple (e.g., reordering) have transport protocol interactions, particularly with congestion control functionality. In addition, DSCP markings may be changed or removed between the traffic source and destination. This memo covers the implications of these DiffServ aspects for real-time network communication, including WebRTC. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-dart-dscp-rtp/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-dart-dscp-rtp-08 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-ietf-dart-dscp-rtp-08 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt