RFC 3180 (rfc3180) - Page 1 of 5

GLOP Addressing in 233/8

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Network Working Group                                           D. Meyer
Request for Comments: 3180                                   P. Lothberg
Obsoletes: 2770                                                   Sprint
BCP: 53                                                   September 2001
Category: Best Current Practice


                        GLOP Addressing in 233/8

Status of this Memo

   This document specifies an Internet Best Current Practices for the
   Internet Community, and requests discussion and suggestions for
   improvements.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

   This document defines the policy for the use of 233/8 for statically
   assigned multicast addresses.

1. Introduction

   It is envisioned that the primary use of this space will be many-to-
   many applications.  This allocation is in addition to those described
   on [IANA] (e.g., [RFC 2365]).  The IANA has allocated 223/8 as per RFC
   2770 [RFC 2770].  This document obsoletes RFC 2770.

2. Problem Statement

   Multicast addresses have traditionally been allocated by a dynamic
   mechanism such as SDR [RFC 2974].  However, many current multicast
   deployment models are not amenable to dynamic allocation.  For
   example, many content aggregators require group addresses that are
   fixed on a time scale that is not amenable to allocation by a
   mechanism such as described in [RFC 2974].  Perhaps more seriously,
   since there is not general consensus by providers, content
   aggregators, or application writers as to the allocation mechanism,
   the Internet is left without a coherent multicast address allocation
   scheme.








Meyer & Lothberg         Best Current Practice
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