DiffServ Applied to Real-time Transports (dart) Concluded WG

Note: The data for concluded WGs is occasionally incorrect.

WG Name DiffServ Applied to Real-time Transports
Acronym dart
Area Real-time Applications and Infrastructure Area (rai)
State Concluded
Charter charter-ietf-dart-01 Approved
Dependencies Document dependency graph (SVG)
Additional Resources
- Issue tracker
- Wiki
Personnel Chair Ben Campbell 
Area Director Richard Barnes 
Tech Advisor Martin Stiemerling 
Mailing list Address dart@ietf.org
To subscribe https://www.ietf.org/mailman/listinfo/dart
Archive https://mailarchive.ietf.org/arch/search/?email_list=dart

Charter for Working Group

Differentiated Services (DiffServ) and DiffServ code points (DSCP) can be used in some situations to provide quality of service (QoS). Packets with different markings can be reordered, which can cause poor interaction with a transport protocol that is sensitive to reordering. When RTP streams or other real-time media (sub-)flows are used with different DSCP values with the same transport 5-tuple, there may be transport protocol interactions. There are also environments where the DSCP markings are removed or remarked.

This WG will write a document that explains the limitations that exist with DiffServ when used with RTP in general as well in the specific RTCWeb cases. The WG will coordinate with relevant WGs, including TSVWG, AVTCORE, MMUSIC, CLUE, RTCWEB, and RMCAT.

Done milestones

Date Milestone
Done Send Informational draft to IESG on DiffServ usage consideration