Browse Prior Art Database

Internet Group Management Protocol, Version 3 (RFC3376)

IP.com Disclosure Number: IPCOM000010075D
Original Publication Date: 2002-Oct-01
Included in the Prior Art Database: 2002-Oct-17

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Cain: AUTHOR [+5]

Abstract

This document specifies Version 3 of the Internet Group Management Protocol, IGMPv3. IGMP is the protocol used by IPv4 systems to report their IP multicast group memberships to neighboring multicast routers. Version 3 of IGMP adds support for "source filtering", that is, the ability for a system to report interest in receiving packets *only* from specific source addresses, or from *all but* specific source addresses, sent to a particular multicast address. That information may be used by multicast routing protocols to avoid delivering multicast packets from specific sources to networks where there are no interested receivers.

This text was extracted from an ASCII text file.
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Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Cain

Request for Comments: 3376� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Cereva Networks

Obsoletes: 2236� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � S. Deering

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � I. Kouvelas

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Cisco Systems

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Fenner

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � AT&T Labs - Research

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � A. Thyagarajan

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Ericsson

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � October 2002

� � � � � � � � � � � � Internet Group Management Protocol, Version 3

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 (2002).� All Rights Reserved.

Abstract

� � This document specifies Version 3 of the Internet Group Management

� � Protocol, IGMPv3.� IGMP is the protocol used by IPv4 systems to

� � report their IP multicast group memberships to neighboring multicast

� � routers.� Version 3 of IGMP adds support for "source filtering", that

� � is, the ability for a system to report interest in receiving packets

� � *only* from specific source addresses, or from *all but* specific

� � source addresses, sent to a particular multicast address.� That

� � information may be used by multicast routing protocols to avoid

� � delivering multicast packets from specific sources to networks where

� � there are no interested receivers.

� � This document obsoletes RFC 2236.

Cain, et. al.� � � � � � � � � � � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3376� � � � � � � � � � � � � � � � � � � � � � � � IGMPv3� � � � � � � � � � � � � � � � � � � � October 2002

Table of Contents

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

� � 2.� The Service Interface for Requesting IP Multicast Reception .� � 3

� � 3.� Multicast Reception State Maintained by Systems . . . . . . .� � 5

� � 4.� Message Formats . . . . . . . . . . . . . ....