rfc2500.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.

Network Working Group                    Internet Engineering Task Force
Request for Comments: 2500                                   J. Reynolds
Obsoletes: 2400, 2300, 2200, 2000, 1920, 1880,                 R. Braden
1800, 1780, 1720, 1610, 1600, 1540, 1500, 1410,                  Editors
1360, 1280, 1250, 1200, 1140, 1130, 1100, 1083                 June 1999
STD: 1
Category: Standards Track


                  Internet Official Protocol Standards


Status of this Memo

   This memo describes the state of standardization of protocols used in
   the Internet as determined by the Internet Engineering Task Force
   (IETF).  This memo is an Internet Standard.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Current Technical Specifications . . . . . . . . . . . . .   4
   2.1.  Standard Protocols . . . . . . . . . . . . . . . . . . .   5
   2.2.  Network-Specific Standard Protocols  . . . . . . . . . .   6
   2.3.  Draft Standard Protocols . . . . . . . . . . . . . . . .   7
   2.4.  Proposed Standard Protocols  . . . . . . . . . . . . . .   9
   2.5.  Experimental Protocols . . . . . . . . . . . . . . . . .  18
   3.  Current Applicability Statements . . . . . . . . . . . . .  21
   4.  Non-Standard Protocols . . . . . . . . . . . . . . . . . .  22
   4.1.  Informational Protocol . . . . . . . . . . . . . . . . .  22
   4.2.  Historic Protocols . . . . . . . . . . . . . . . . . . .  24
   5.  Contacts . . . . . . . . . . . . . . . . . . . . . . . . .  25
   5.1.  IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . .  25
   5.2.  Internet Assigned Numbers Authority (IANA) Contact . . .  25
   5.3.  Request for Comments Editor Contact  . . . . . . . . . .  26
   5.4.  Requests for Comments Distribution Contact . . . . . . .  26
   5.5.  Sources for Requests for Comments  . . . . . . . . . . .  26
   6.  Security Considerations  . . . . . . . . . . . . . . . . .  26
   7.  Editors' Addresses . . . . . . . . . . . . . . . . . . . .  27
   Full Copyright Statement . . . . . . . . . . . . . . . . . . .  28






IETF                        Standards Track                     [Page 1]

RFC 2500                   Internet Standards                  June 1999


1. Introduction

   This memo summarizes the status of Internet protocols and
   specifications.  It is published by the RFC Editor in accordance with
   Section 2.1 of "The Internet Standards Process -- Revision 3", RFC
   2026, which specifies the rules and procedures by which all Internet
   stnadards are set.  This memo is prepared by the RFC Editor for the
   IESG and IAB.  It is a member of a series of summary memos that are
   published approximately every one hundred RFCs; please see
   www.rfc-editor.org.

   This memo lists the level and status of the archival documents known
   as RFCs (Request for Comments) within the Internet standards process.
   The reader is urged to review RFC 2026 for essential context for
   interpreting this memo.

   The following introductory text is quoted directly from RFC 2026:

      "The Internet, a loosely-organized international collaboration of
      autonomous, interconnected networks, supports host-to-host
      communication through voluntary adherence to open protocols and
      procedures defined by Internet Standards.  There are also many
      isolated interconnected networks, which are not connected to the
      global Internet but use the Internet Standards.

      The Internet Standards Process described in this document is
      concerned with all protocols, procedures, and conventions that are
      used in or by the Internet, whether or not they are part of the
      TCP/IP protocol suite.  In the case of protocols developed and/or
      standardized by non-Internet organizations, however, the Internet
      Standards Process normally applies to the application of the
      protocol or procedure in the Internet context, not to the
      specification of the protocol itself.

      In general, an Internet Standard is a specification that is stable
      and well-understood, is technically competent, has multiple,
      independent, and interoperable implementations with substantial
      operational experience, enjoys significant public support, and is
      recognizably useful in some or all parts of the Internet.

      Each distinct version of an Internet standards-related
      specification is published as part of the "Request for Comments"
      (RFC) document series.  This archival series is the official
      publication channel for Internet standards documents and other
      publications of the IESG, IAB, and Internet community.  RFCs can
      be obtained from a number of Internet hosts using anonymous FTP,
      gopher, World Wide Web, and other Internet document-retrieval
      systems.



IETF                        Standards Track                     [Page 2]

RFC 2500                   Internet Standards                  June 1999


      The rules for formatting and submitting an RFC are defined in [5].
      Every RFC is available in ASCII text.  Some RFCs are also
      available in other formats.  The other versions of an RFC may
      contain material (such as diagrams and figures) that is not
      present in the ASCII version, and it may be formatted differently.

            *********************************************************
            *                                                       *
            *  A stricter requirement applies to standards-track    *
            *  specifications:  the ASCII text version is the       *
            *  definitive reference, and therefore it must be a     *
            *  complete and accurate specification of the standard, *
            *  including all necessary diagrams and illustrations.  *
            *                                                       *
            *********************************************************

      The status of Internet protocol and service specifications is
      summarized periodically in an RFC entitled "Internet Official
      Protocol Standards" [1].  This RFC shows the level of maturity and
      other helpful information for each Internet protocol or service
      specification (see section 3).

      Specifications subject to the Internet Standards Process fall into
      one of two categories:  Technical Specification (TS) and
      Applicability Statement (AS).

      Some RFCs document Internet Standards.  These RFCs form the "STD"
      subseries of the RFC series [4].  When a specification has been
      adopted as an Internet Standard, it is given the additional label
      "STDxxx", but it keeps its RFC number and its place in the RFC
      series.  (see section 4.1.3)

      Some RFCs standardize the results of community deliberations about
      statements of principle or conclusions about what is the best way
      to perform some operations or IETF process function.  These RFCs
      form the specification has been adopted as a BCP, it is given the
      additional label "BCPxxx", but it keeps its RFC number and its
      place in the RFC series. (see section 5)

      Not all specifications of protocols or services for the Internet
      should or will become Internet Standards or BCPs.  Such non-
      standards track specifications are not subject to the rules for
      Internet standardization.  Non-standards track specifications may
      be published directly as "Experimental" or "Informational" RFCs at
      the discretion of the RFC Editor in consultation with the IESG
      (see section 4.2)."





IETF                        Standards Track                     [Page 3]

RFC 2500                   Internet Standards                  June 1999


   Section 2 of this memo lists all Technical Specification RFCs that
   are in the standards track, and Section 3 lists Applicability
   Statement RFCs in the standards track.  Section 4 lists those
   protocol specification RFCs that are off the standards track
   (Informational and Historic status).  This memo does not list
   Informational RFCs that may be of general interest to the community
   but do not specify protocols for the Internet.  It also does not list
   BCP RFCs.  Telnet options have been added into the lists.

2. Current Technical Specifications

   Subsections 2.1-2.5 list the standards in groups by protocol state.
   In the following lists, shorthand nicknames have been shown for many
   of the major protocols.  These names are commonly used in discourse
   on Internet mailing lists.




































IETF                        Standards Track                     [Page 4]

RFC 2500                   Internet Standards                  June 1999


2.1.  Standard Protocols

Protocol   Name                                                RFC STD *
========   =====================================              ==== === =
--------   Internet Official Protocol Standards               2500   1
--------   Assigned Numbers                                   1700   2
IP         Internet Protocol                                   791   5
            as amended by:--------
--------     IP Subnet Extension                               950   5
--------     IP Broadcast Datagrams                            919   5
--------     IP Broadcast Datagrams with Subnets               922   5
ICMP       Internet Control Message Protocol                   792   5
IGMP       Internet Group Multicast Protocol                  1112   5
UDP        User Datagram Protocol                              768   6
TCP        Transmission Control Protocol                       793   7
TELNET     Telnet Protocol                                 854,855   8
FTP        File Transfer Protocol                              959   9
SMTP       Simple Mail Transfer Protocol                       821  10