Browse Prior Art Database

Mapping of Media Streams to Resource Reservation Flows (RFC3524)

IP.com Disclosure Number: IPCOM000012308D
Original Publication Date: 2003-Apr-01
Included in the Prior Art Database: 2003-Apr-29
Document File: 7 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+2]

Abstract

This document defines an extension to the Session Description Protocol (SDP) grouping framework. It allows requesting a group of media streams to be mapped into a single resource reservation flow. The SDP syntax needed is defined, as well as a new "semantics" attribute called Single Reservation Flow (SRF).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 25% of the total text.

Network Working Group                                       G. Camarillo

Request for Comments: 3524                                     A. Monrad

Category: Standards Track                                       Ericsson

                                                              April 2003

         Mapping of Media Streams to Resource Reservation Flows

Status of this Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This document defines an extension to the Session Description

   Protocol (SDP) grouping framework.  It allows requesting a group of

   media streams to be mapped into a single resource reservation flow.

   The SDP syntax needed is defined, as well as a new "semantics"

   attribute called Single Reservation Flow (SRF).

Table of Contents

   1.  Introduction ........................................    2

       1.1  Terminology ....................................    2

   2.  SRF Semantics .......................................    2

   3.  Applicability Statement .............................    3

   4.  Examples ............................................    3

   5.  IANA Considerations .................................    4

   6.  Security Considerations .............................    4

   7.  Acknowledgements ....................................    4

   8.  Normative References ................................    5

   9.  Informative References ..............................    5

   10. Authors' Addresses ..................................    5

   11. Full Copyright Statement ............................    6

Camarillo & Monrad          Standards Track                     [Page 1]

RFC 3524  Mapping Media Streams to Resource Reservation Flows April 2003

1.  Introduction

   Resource reservation protocols assign network resources to particular

   flows of IP packets.  When a router receives an IP packet, it applies

   a filter in order to map the packet to the flow it belongs.  The

   router provides the IP packet with the Quality of Service (QoS)

   corresponding to its flow.  Routers typically use the source and the

   destination IP addresses and port numbers to filter packets.

   Multimedia sessions typically contain multiple media streams (e.g. an

   audio stream and a video stream).  In order to provide QoS for a

   multimedia session it is necessary to map all the me...