RFC 9143

Negotiating Media Multiplexing Using the Session Description Protocol (SDP), February 2022

File formats:

icon for HTML icon for text file icon for v3pdf icon for XML
Also available: XML file for editing
RFC 8843
RFC 3264, RFC 5888, RFC 7941
C. Holmberg
H. Alvestrand
C. Jennings
mmusic (art)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9143

Discuss this RFC: Send questions or comments to the mailing list mmusic@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF  |  View History of RFC 9143


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.

This specification obsoletes RFC 8843.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

Advanced Search