RTP Header Extension for the RTP Control Protocol (RTCP) Source Description Items (RFC7941)
Original Publication Date: 2016-Aug-01
Included in the Prior Art Database: 2016-Sep-01
Internet Society Requests For Comment (RFCs)
M. Westerlund: AUTHOR [+4]
This specification defines an RTP header extension [RFC3550][RFC5285] that can carry RTCP Source Description (SDES) items. Normally, the SDES items are carried in their own RTCP packet type [RFC3550]. By including selected SDES items in a header extension, the determination of relationship and synchronization context for new RTP streams (SSRCs) in an RTP session can be optimized. Which relationship and what information depends on the SDES items carried. This becomes a complement to using only RTCP for SDES item delivery.
Internet Engineering Task Force (IETF) M. Westerlund Request for Comments: 7941 B. Burman Category: Standards Track Ericsson ISSN: 2070-1721 R. Even Huawei Technologies M. Zanaty Cisco Systems August 2016
RTP Header Extension for the RTP Control Protocol (RTCP) Source Description Items
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.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7941.
al. Standards Track [Page 1]
RFC 7941 RTP HE for RTCP SDES August 2016
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