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RFC 7104: Duplication Grouping Semantics in the Session Description Protocol

In plain English — editorial summary, not part of the RFC

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.

Document record

Document ID
RFC7104
Published
January 2014
Authors
A. Begen; Y. Cai; H. Ou
Status
PROPOSED STANDARD
Stream
IETF
Area
art
Pages
10
Also known as
—

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