RFC 1467 (rfc1467) - Page 1 of 9

Status of CIDR Deployment in the Internet

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Network Working Group                                        C. Topolcic
Request for Comments: 1467                                          CNRI
Obsoletes: 1367                                              August 1993


               Status of CIDR Deployment in the Internet

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard.  Distribution of this memo is
   unlimited.

Abstract

   This document describes the current status of the development and
   deployment of CIDR technology into the Internet. This document
   replaces RFC 1367, which was a schedule for the deployment of IP
   address space management procedures to support route aggregation.
   Since all the milestones proposed in RFC 1367 except for the delivery
   and installation of CIDR software were met, it does not seem
   appropriate to issue an updated schedule. Rather, this document is
   intended to provide information about how this effort is proceeding,
   which may be of interest to the community.

1. Background

   The Internet's exponential growth has led to a number of difficulties
   relating to the management of IP network numbers.  The administrative
   overhead of allocating ever increasing volumes of IP network numbers
   for global users has stressed the organizations that perform this
   function.  The volume of IP network numbers that are reachable
   through the Internet has taxed a number of routers' ability to manage
   their forwarding tables.  The poor utilization of allocated IP
   network numbers has threatened to deplete the Class A and Class B
   address space.

   During the past few years, a consensus has emerged among the Internet
   community in favor of a number of mechanisms to relieve these
   problems for the mid-term.  These mechanisms are expected to be put
   into place in the short term and to provide relief for the mid-term.
   Fundamental changes to the Internet protocols to ensure the
   Internet's continued long term growth and well being are being
   explored and are expected to succeed the mid-term mechanisms.

   The global Internet community have been cooperating closely in such
   forums as the IETF and its working groups, the IEPG, the NSF Regional
   Techs Meetings, INET, INTEROP, FNC, FEPG, and other assemblies in



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