Browse Prior Art Database

RTP: A Transport Protocol for Real-Time Applications (RFC1889)

IP.com Disclosure Number: IPCOM000004144D
Original Publication Date: 1996-Jan-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

Audio-Video Transport Working Group: AUTHOR [+5]

Abstract

This memorandum describes RTP, the real-time transport protocol. RTP provides end-to-end network transport functions suitable for applications transmitting real-time data, such as audio, video or simulation data, over multicast or unicast network services. RTP does not address resource reservation and does not guarantee quality-of- service for real-time services. The data transport is augmented by a control protocol (RTCP) to allow monitoring of the data delivery in a manner scalable to large multicast networks, and to provide minimal control and identification functionality. RTP and RTCP are designed to be independent of the underlying transport and network layers. The protocol supports the use of RTP-level translators and mixers.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group Audio-Video Transport Working Group

Request for Comments: 1889 H. Schulzrinne

Category: Standards Track GMD Fokus

S. Casner

Precept Software, Inc.

R. Frederick

Xerox Palo Alto Research Center

V. Jacobson

Lawrence Berkeley National Laboratory

January 1996

RTP: A Transport Protocol for Real-Time Applications

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.

Abstract

This memorandum describes RTP, the real-time transport protocol. RTP

provides end-to-end network transport functions suitable for

applications transmitting real-time data, such as audio, video or

simulation data, over multicast or unicast network services. RTP does

not address resource reservation and does not guarantee quality-of-

service for real-time services. The data transport is augmented by a

control protocol (RTCP) to allow monitoring of the data delivery in a

manner scalable to large multicast networks, and to provide minimal

control and identification functionality. RTP and RTCP are designed

to be independent of the underlying transport and network layers. The

protocol supports the use of RTP-level translators and mixers.

Table of Contents

1. Introduction ........................................ 3

2. RTP Use Scenarios ................................... 5

2.1 Simple Multicast Audio Conference ................... 5

2.2 Audio and Video Conference .......................... 6

2.3 Mixers and Translators .............................. 6

3. Definitions ......................................... 7

4. Byte Order, Alignment, and Time Format .............. 9

5. RTP Data Transfer Protocol .......................... 10

5.1 RTP Fixed Header Fields ............................. 10

5.2 Multiplexing RTP Sessions ........................... 13

5.3 Profile-...