This Internet-Draft is no longer active. Unofficial copies of old Internet-Drafts can be found here:
http://tools.ietf.org/id/draft-begen-mmusic-redundancy-grouping.
Abstract:
Packet loss is undesirable for real-time multimedia sessions, but 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 [RFC5888]. SSRC-level (Synchronization Source)
grouping semantics are also defined in this document for RTP streams
using SSRC multiplexing.
Authors:
Ali Begen <abegen@cisco.com>
Yiqun Cai <ycai@cisco.com>
Heidi Ou <hou@cisco.com>
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)
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