Explicit Congestion Notification for RTP over UDP
RFC 6679, “Explicit Congestion Notification for RTP over UDP”, is a Proposed Standard document published in August 2012 by M. Westerlund, I. Johansson, C. Perkins, P. O'Hanlon, K. Carlberg. It has since been updated by RFC 8311. The canonical text is published by the RFC Editor.
Abstract
This memo specifies how Explicit Congestion Notification (ECN) can be used with the Real-time Transport Protocol (RTP) running over UDP, using the RTP Control Protocol (RTCP) as a feedback mechanism. It defines a new RTCP Extended Report (XR) block for periodic ECN feedback, a new RTCP transport feedback message for timely reporting of congestion events, and a Session Traversal Utilities for NAT (STUN) extension used in the optional initialisation method using Interactive Connectivity Establishment (ICE). Signalling and procedures for negotiation of capabilities and initialisation methods are also defined. [STANDARDS-TRACK]
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 6679 is hosted at rfc-editor.org. Available in TXT,HTML.
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