Duplication Grouping Semantics in the Session Description Protocol

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Publisher: IETF
Doc Type: Standard
Pages: 10
Abstract: Packet loss is undesirable for real-time multimedia sessions, but it can occur due to congestion or other unplanned network outages. This is especially true for IP multicast networks, where packet loss patterns can vary greatly between receivers. One technique that can be used to recover from packet loss without incurring unbounded delay for all the receivers is to duplicate the packets and send them in separate redundant streams. This document defines the semantics for grouping redundant streams in the Session Description Protocol (SDP). The semantics defined in this document are to be used with the SDP Grouping Framework. Grouping semantics at the Synchronization Source (SSRC) level are also defined in this document for RTP streams using SSRC multiplexing.
Publication Date: 2014-01-01
Status Note: Proposed Standard
DOI: 10.17487/RFC7104
Link: https://doi.org/10.17487/RFC7104
Author(s): Ali C. Begen
Yiqun Cai
Heidi Ou
Keyword(s): SDP, SSRC

Latest version of IETF RFC 7104

Document Versions — IETF RFC 7104

▶ IETF RFC 7104 (2014-01-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 3264 [Active*]
IETF RFC 3550 [Active*]
IETF RFC 4566 [Superseded*]
IETF RFC 5576 [Active*]
IETF RFC 5888 [Active*]

Bibliographic Reference(s)

Begen, A., Cai, Y., and H. Ou, "Delayed Duplication Attribute in the Session Description Protocol", Work in Progress, December 2013. EXTERNAL
Begen, A. and C. Perkins, "Duplicating RTP Streams" , Work in Progress, October 2013. EXTERNAL
Evans, J., Begen, A., Greengrass, J., and C. Filsfils, "Toward Lossless Video Transport, IEEE Internet Computing, vol. 15/6, pp. 48-57", November 2011. EXTERNAL
IETF RFC 2354 [Active*]
IETF RFC 2818 [Superseded*]
IETF RFC 2974 [Active*]
IETF RFC 5652 [Active*]
IETF RFC 5751 [Superseded*]

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IETF RFC 7104, Duplication Grouping Semantics in the Session Description Protocol
doi: 10.17487/RFC7104
url: https://doi.org/10.17487/RFC7104

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Referenced By

IETF RFC 7197 [Active*]
IETF RFC 7198 [Active*]
IETF RFC 8853 [Active*]
IETF RFC 8859 [Active*]