Negotiating Media Multiplexing Using the Session Description Protocol
RFC 8843, “Negotiating Media Multiplexing Using the Session Description Protocol”, is a Proposed Standard document published in January 2021 by C. Holmberg, H. Alvestrand, C. Jennings. It updates RFC 3264, RFC 5888, RFC 7941. It has been obsoleted by RFC 9143 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This specification defines a new Session Description Protocol (SDP) Grouping Framework extension called 'BUNDLE'. The extension can be used with the SDP offer/answer mechanism to negotiate the usage of a single transport (5-tuple) for sending and receiving media described by multiple SDP media descriptions ("m=" sections). Such transport is referred to as a BUNDLE transport, and the media is referred to as bundled media. The "m=" sections that use the BUNDLE transport form a BUNDLE group.
This specification defines a new RTP Control Protocol (RTCP) Source Description (SDES) item and a new RTP header extension.
This specification updates RFCs 3264, 5888, and 7941.
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 8843 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 8842 Session Description Protocol Offer/Answer Considerations for Datagram Transport Layer Security and Transport Layer Security
- RFC 8844 Unknown Key-Share Attacks on Uses of TLS with the Session Description Protocol
- RFC 8841 Session Description Protocol Offer/Answer Procedures for Stream Control Transmission Protocol over Datagram Transport Layer Security Transport
- RFC 8845 Framework for Telepresence Multi-Streams
- RFC 8840 A Session Initiation Protocol Usage for Incremental Provisioning of Candidates for the Interactive Connectivity Establishment
- RFC 8846 An XML Schema for the Controlling Multiple Streams for Telepresence Data Model
- RFC 8839 Session Description Protocol Offer/Answer Procedures for Interactive Connectivity Establishment
- RFC 8847 Protocol for Controlling Multiple Streams for Telepresence