RTP Header Extension for the RTP Control Protocol Source Description Items
RFC 7941, “RTP Header Extension for the RTP Control Protocol Source Description Items”, is a Proposed Standard document published in August 2016 by M. Westerlund, B. Burman, R. Even, M. Zanaty. It has since been updated by RFC 8843, RFC 9143. The canonical text is published by the RFC Editor.
Abstract
Source Description (SDES) items are normally transported in the RTP Control Protocol (RTCP). In some cases, it can be beneficial to speed up the delivery of these items. The main case is when a new synchronization source (SSRC) joins an RTP session and the receivers need this source's identity, relation to other sources, or its synchronization context, all of which may be fully or partially identified using SDES items. To enable this optimization, this document specifies a new RTP header extension that can carry SDES items.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7941 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 7940 Representing Label Generation Rulesets Using XML
- RFC 7942 Improving Awareness of Running Code: The Implementation Status Section
- RFC 7939 Definition of Managed Objects for the Neighborhood Discovery Protocol
- RFC 7943 A Method for Generating Semantically Opaque Interface Identifiers with the Dynamic Host Configuration Protocol for IPv6
- RFC 7938 Use of BGP for Routing in Large-Scale Data Centers
- RFC 7944 Diameter Routing Message Priority
- RFC 7937 Content Distribution Network Interconnection Logging Interface
- RFC 7945 Information-Centric Networking: Evaluation and Security Considerations