The IESG has approved the following document: - 'Delayed Duplication Attribute in the Session Description Protocol' (draft-ietf-mmusic-delayed-duplication-03.txt) as Proposed Standard This document is the product of the Multiparty Multimedia Session Control Working Group. The IESG contact persons are Gonzalo Camarillo and Richard Barnes. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-mmusic-delayed-duplication/ 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
