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IETF RFC 8108

Sending Multiple RTP Streams in a Single RTP Session

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Organization: IETF
Publication Date: 1 March 2017
Status: active
Page Count: 29
scope:

This memo expands and clarifies the behavior of Real-time Transport Protocol (RTP) endpoints that use multiple synchronization sources (SSRCs). This occurs, for example, when an endpoint sends multiple RTP streams in a single RTP session. This memo updates RFC 3550 with regard to handling multiple SSRCs per endpoint in RTP sessions, with a particular focus on RTP Control Protocol (RTCP) behavior. It also updates RFC 4585 to change and clarify the calculation of the timeout of SSRCs and the inclusion of feedback messages.

Document History

IETF RFC 8108
March 1, 2017
Sending Multiple RTP Streams in a Single RTP Session
This memo expands and clarifies the behavior of Real-time Transport Protocol (RTP) endpoints that use multiple synchronization sources (SSRCs). This occurs, for example, when an endpoint sends...

References

This document references:
IETF RFC 3390 - Increasing TCP’s Initial Window
Published by IETF on October 1, 2002
This document specifies an optional standard for TCP to increase the permitted initial window from one or two segment(s) to roughly 4K bytes, replacing RFC 2414. It discusses the advantages and...
This document references:
IETF RFC 3556 - Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth
Published by IETF on July 1, 2003
This document defines an extension to the Session Description Protocol (SDP) to specify two additional modifiers for the bandwidth attribute. These modifiers may be used to specify the bandwidth...
This document is referenced by:
IETF RFC 8083 - Multimedia Congestion Control: Circuit Breakers for Unicast RTP Sessions
Published by IETF on March 1, 2017
The Real-time Transport Protocol (RTP) is widely used in telephony, video conferencing, and telepresence applications. Such applications are often run on best-effort UDP/IP networks. If congestion...
This document is referenced by:
IETF RFC 8860 - Sending Multiple Types of Media in a Single RTP Session
Published by IETF on January 1, 2021
Abstract This document specifies how an RTP session can contain RTP streams with media from multiple media types such as audio, video, and text. This has been restricted by the RTP specifications...
This document is referenced by:
IETF RFC 8861 - Sending Multiple RTP Streams in a Single RTP Session: Grouping RTP Control Protocol (RTCP) Reception Statistics and Other Feedback
Published by IETF on January 1, 2021
Abstract RTP allows multiple RTP streams to be sent in a single session but requires each Synchronization Source (SSRC) to send RTP Control Protocol (RTCP) reception quality reports for every other...
This document is referenced by:
IETF RFC 8853 - Using Simulcast in Session Description Protocol (SDP) and RTP Sessions
Published by IETF on January 1, 2021
Abstract In some application scenarios, it may be desirable to send multiple differently encoded versions of the same media source in different RTP streams. This is called simulcast. This document...
This document is referenced by:
IETF RFC 8829 - JavaScript Session Establishment Protocol (JSEP)
Published by IETF on January 1, 2021
Abstract This document describes the mechanisms for allowing a JavaScript application to control the signaling plane of a multimedia session via the interface specified in the W3C RTCPeerConnection...
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