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Host Group Extensions for CLNP Multicasting (RFC1768)

IP.com Disclosure Number: IPCOM000004019D
Original Publication Date: 1995-Mar-01
Included in the Prior Art Database: 2000-Sep-12

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Marlow: AUTHOR

Abstract

This memo documents work performed in the TUBA (TCP/UDP over Bigger Addresses) working group of IPng area prior to the July 1994 decision to utilize SIPP-16 as the basis for IPng. The TUBA group worked on extending the Internet Protocol suite by the use of ISO 8473 (CLNP) and its related routing protocols. This memo describes multicast extensions to CLNP and its related routing protocols for Internet multicast use. Publication of this memo does not imply acceptance by any IETF Working Group for the ideas expressed within.

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Network Working Group D. Marlow

Request for Comments: 1768 NSWC-DD

Category: Experimental March 1995

Host Group Extensions for CLNP Multicasting

Status of this Memo

This memo defines an Experimental Protocol for the Internet

community. This memo does not specify an Internet standard of any

kind. Discussion and suggestions for improvement are requested.

Distribution of this memo is unlimited.

Abstract

This memo documents work performed in the TUBA (TCP/UDP over Bigger

Addresses) working group of IPng area prior to the July 1994 decision

to utilize SIPP-16 as the basis for IPng. The TUBA group worked on

extending the Internet Protocol suite by the use of ISO 8473 (CLNP)

and its related routing protocols. This memo describes multicast

extensions to CLNP and its related routing protocols for Internet

multicast use. Publication of this memo does not imply acceptance by

any IETF Working Group for the ideas expressed within.

This memo provides a specification for multicast extensions to the

CLNP protocol similar to those provided to IP by RFC1112. These

extensions are intended to provide the mechanisms needed by a host

for multicasting in a CLNP based Internet. This memo covers

addressing extensions to the CLNP addressing structure, extensions to

the CLNP protocol and extensions to the ES-IS protocol. An appendix

discusses the differences between IP multicast and the CLNP multicast

approach provided in this memo.

Acknowledgments

The specification provided here was developed by a number of

individuals in the IETF TUBA working group as well as the ANSI X3S3.3

and ISO SC6 WG2 committees. Key contributions were made by Steve

Deering, Joel Halpern, Dave Katz and Dave Oran.

Table of Contents

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

2. Levels of Conformance.................................. 3

3. Group Network Addresses................................ 4

4. Model of a CLNP End System Multicast Implementation.... 8

5. Extensions to the CLNP Protocol........................ 8

6. Extensions to the ES-IS Routeing Protocol ............. 15

7. Security Considerations ............................... 39

Appendix A. Differences with RFC 1112 .................... 40

Appendix B. Issues Under Study ........................... 43

References ................................................ 44

Author's Address .......................................... 45

1. Introduction

This memo provides a specification for multicast extensions for CLNP

in order to provide a CLNP based Internet the capabilities provided

for IP by RFC 1112 (Host Extensions for IP Multicasting) [RFC1112].

This memo uses an outline similar to that of RFC 1112.

Paraphrasing RFC 1112, "CLNP multicasting is the transmission of a

CLNP datagram to a "host group", a s...