The IESG has received a request from the Audio/Video Transport Extensions WG (avtext) to consider the following document: - 'Considerations for Deploying the Rapid Acquisition of Multicast RTP Sessions (RAMS) Method' <draft-ietf-avtext-rams-scenarios-03.txt> as an Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2012-04-03. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The Rapid Acquisition of Multicast RTP Sessions (RAMS) solution is a method based on RTP and RTP Control Protocol (RTCP) that enables an RTP receiver to rapidly acquire and start consuming the RTP multicast data. Upon a request from the RTP receiver, an auxiliary unicast RTP retransmission session is set up between a retransmission server and the RTP receiver, over which the reference information about the new multicast stream the RTP receiver is about to join is transmitted at an accelerated rate. This often precedes, but may also accompany, the multicast stream itself. When there is only one multicast stream to be acquired, the RAMS solution works in a straightforward manner. However, when there are two or more multicast streams to be acquired from the same or different multicast RTP sessions, care should be taken to configure each RAMS session appropriately. This document provides example scenarios and discusses how the RAMS solution could be used in such scenarios. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-avtext-rams-scenarios/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-avtext-rams-scenarios/ballot/ No IPR declarations have been submitted directly on this I-D.
