IP multicasting over ATM networks

Author

Armitage, Grenville J.

Author_Institution

Bellcore, Morristown, NJ, USA

Volume

15

Issue

3

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

445

Lastpage

457

Abstract

The Internet protocol (IP) multicast model involves a combination of intrasubnet and intersubnet multicast mechanisms. Technologies supporting a given subnet are expected to have native mechanisms for supporting intrasubnet forwarding of packets sent to multicast destinations. Multicast routers attach to subnets and provide intersubnet forwarding of multicast packets, using interdomain multicast routing protocols developed by the Internet Engineering Task Force (IETF). Unfortunately, ATM networks based on UNI 3.0 or UNI 3.1 signaling service do not provide the native multicast support expected by IP. This has led the IETF to develop the “MARS model”-a fairly complex mechanism for emulating intrasubnet multicast support required when running IPs over ATMs. This paper takes a high level look at the IP multicast service, examines the limitations of the ATM point-to-multipoint virtual channel service, and describes the major architectural points of the MARS model

Keywords

asynchronous transfer mode; network interfaces; packet switching; telecommunication channels; telecommunication network routing; telecommunication signalling; transport protocols; user interfaces; ATM networks; ATM point to multipoint virtual channel service; IETF; IP multicast service; Internet Engineering Task Force; Internet protocol; MARS model; UNI 3.0 signaling service; UNI 3.1 signaling service; interdomain multicast routing protocols; intersubnet forwarding; intersubnet multicast mechanisms; intrasubnet multicast mechanism; intrasubnet multicast support emulation; multicast destinations; multicast model; multicast routers; packet forwarding; Asynchronous transfer mode; Displays; Internet; Mars; Multicast communication; Multicast protocols; Routing protocols; Teleconferencing; Virtual colonoscopy; Web server;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.564141

Filename

564141