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...