Technical Summary
A straightforward approach to provide protection against packet
losses due to network outages with a longest duration of T time units
is to simply duplicate the original packets and send each copy
separated in time by at least T time units. This approach is
commonly referred to as Time-shifted Redundancy, Temporal Redundancy
or simply Delayed Duplication. This document defines an attribute to
indicate the presence of temporally redundant media streams and the
duplication delay in the Session Description Protocol.
Working Group Summary
There is WG consensus behind this draft. All issues raised during
and before WGLC have been addressed.
Document Quality
The document has received reviews from working group participants
both at MMUSIC and AVTEXT and the document shepherd. There is
currently at least one vendor implementing this mechanism and
various other vendors have expressed interest for this technique.
Personnel
Who is the Document Shepherd? Who is the Responsible Area
Director?
Ari Keranen is the Document Shepherd, and the Responsible Area
Director is Gonzalo Camarillo.
RFC Editor's Note
Please add the following site as a reference to Lucky 13 mentioned in Section 5.
http://www.isg.rhul.ac.uk/tls/Lucky13.html