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Network Working Group                                        C. TopolcicRequest for Comments: 1367                                          CNRI                                                            October 1992Schedule for IP Address Space Management GuidelinesStatus of this Memo   This memo provides information for the Internet community.  It does   not specify an Internet standard.  Distribution of this memo is   unlimited.Introduction   This memo suggests a schedule for the implementation of the IP   network number allocation plan described inRFC 1366.  This schedule   is meant to support the implementation and deployment of an address   aggregation mechanism for the Internet by proposing an achievable   target for which we can all aim.  The timely deployment of that   aggregation mechanism and the IP addressing plan will help the the   size of the Internet router forwarding tables and management of the   IP address space.  By doing so, it will help the current Internet   addressing and routing technology operate during the interim period   until the next generation technology is deployed. This interim   solution in no way constrains the selection of the next generation   addressing and routing technology.   This draft schedule was put together by the FNC Engineering and   Planning Group (FEPG) based on the IP addressing plan BOF of the July   1992 IETF meeting, as well as discussions with a number (though, of   course, not all) of knowledgeable and interested parties, including   the IANA and IR.  This draft schedule assumes that the address   aggregation mechanism will be available in the Internet by mid-1993.   The activities described in this schedule are the precursors to that   deployment, and will promote the efficient operation of that   mechanism.  We feel that our assumptions are realistic and that this   schedule can be met.  We encourage its open discussion as we move   toward community consensus.      Please send comments to topolcic@nri.reston.va.us, or to the      mailing list ipalloc@nri.reston.va.us.  To be added to this      mailing list, send a request to ipalloc-request@nri.reston.va.us.   Note that the references below to an addressing plan and to criteria   for regional address registries refer toRFC 1366.Topolcic                                                        [Page 1]

RFC 1367        Schedule for IP Address Space Guidelines    October 1992Draft Implementation Schedule for IP Network Number Allocation Plan:      1) 31 October 92:         The following address allocation procedures are continued:         a) Initial set of criteria for selecting regional address            registries will be put into place, and requests from            prospective regional registries will be accepted by the            IANA.         b) Class A network numbers are practically impossible to            obtain.         c) Class B network numbers will continue to be issued only when            reasonably justified.  If possible, a block of C's will be            issued rather than a B. The requirements for allocating a            Class B will become progressively more constrained until the            date in step (3).         d) Class C network numbers will be allocated according to the            addressing plan.  Allocation will be performed by the            Internet Registry (IR) if an appropriate regional registry            has not yet been designated by the IANA.      2) 14 February 93:         Re-evaluate and readjust the schedule if necessary.      3) 15 April 93:         a) The IR begins to allocate all networks according to the            addressing plan in appropriately sized blocks of Class C            numbers.         b) Class B network numbers will be difficult to obtain,            following the recommendation of the addressing plan and only            issued when justified.      4) 6 June 93:         Expected date that an address aggregation mechanism is         available in the Internet.References   [1] Gerich, E., "Guidelines for Management of IP Address Space",RFC1366, Merit, October 1992.Topolcic                                                        [Page 2]

RFC 1367        Schedule for IP Address Space Guidelines    October 1992Security Considerations   Security issues are not discussed in this memo.Author's Address   Claudio Topolcic   Corporation for National Research Initiatives   895 Preston White Drive   Suite 100   Reston, VA  22091   Phone: (703) 620-8990   EMail: topolcic@NRI.Reston.VA.USTopolcic                                                        [Page 3]