Browse Prior Art Database

Integration of Real-time Services in an IP-ATM Network Architecture (RFC1821)

IP.com Disclosure Number: IPCOM000004079D
Original Publication Date: 1995-Aug-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 20 page(s) / 61K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Borden: AUTHOR [+4]

Abstract

The IETF is currently developing an integrated service model which is designed to support real-time services on the Internet. Concurrently, the ATM Forum is developing Asynchronous Transfer Mode networking which similarly provides real-time networking support. The use of ATM in the Internet as a link layer protocol is already occurring, and both the IETF and the ATM Forum are producing specifications for IP over ATM. The purpose of this paper is to provide a clear statement of what issues need to be addressed in interfacing the IP integrated services environment with an ATM service environment so as to create a seamless interface between the two in support of end users desiring real-time networking services.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 5% of the total text.

Network Working Group M. Borden

Request for Comments: 1821 E. Crawley

Category: Informational Bay Networks

B. Davie

Bellcore

S. Batsell

NRL

August 1995

Integration of Real-time Services in an IP-ATM Network Architecture

Status of the Memo

This memo provides information for the Internet community. This memo

does not specify an Internet standard of any kind. Distribution of

this memo is unlimited.

Abstract

The IETF is currently developing an integrated service model which is

designed to support real-time services on the Internet.

Concurrently, the ATM Forum is developing Asynchronous Transfer Mode

networking which similarly provides real-time networking support. The

use of ATM in the Internet as a link layer protocol is already

occurring, and both the IETF and the ATM Forum are producing

specifications for IP over ATM. The purpose of this paper is to

provide a clear statement of what issues need to be addressed in

interfacing the IP integrated services environment with an ATM

service environment so as to create a seamless interface between the

two in support of end users desiring real-time networking services.

Table of Contents

1.0 Introduction 2

2.0 Problem Space Overview 3

2.1 Initial Assumptions 3

2.2 Topologies Under Consideration 4

2.3 Providing QoS in IP over ATM - a walk-though 5

3.0 Service Model Issues 6

3.1 Traffic Characterization 7

3.2 QoS Characterization 8

4.0 Resource Reservation Styles 10

4.1 RSVP 10

4.2 ST-II 13

4.3 Mapping IP flows to ATM Connections 15

5.0 End System Issues 16

6.0 Routing Issues 16

6.1 Multicast routing 17

6.2 QoS Routing 17

6.3 Mobile Routing 18

7.0 Security Issues 19

8.0 Future Directions 20

9.0 References 22

10.0 Authors' Addresses ...