rfc939.txt

RFC 相关的技术文档

         remain high compared with standard ISO protocol products,
         however, and availability of implementations for new systems
         and releases would remain limited.  External interoperability
         with non-DOD systems would be limited and inefficient.

         In summary, Option 1 provides the most rapid path toward the
         use of commercial products and interoperability with external
         systems.  Option 2 reduces the risk but involves somewhat
         greater delay and expense.  Option 3 involves the least risk
         and provides the quickest route to interoperability within the
         Defense Department at the least short-term cost.  These are,
         however, accompanied by penalties of incompatibility with NATO
         and other external systems and higher life-cycle costs.

   NOTES:

      (1)  The Advanced Research Projects Agency (ARPA) was reorganized
           and became the Defense Advanced Research Projects Agency
           (DARPA) in 1973.

      (2)  The ISO Transport Protocol and ISO Internetwork Protocol
           became Draft International Standards in September 1983 and
           April 1984, respectively. Commercial vendors normally
           consider Draft International Standards to be ready for
           implementation.

      (3)  Except where noted, the abbreviation TCP generally refers to
           both the DOD's Transmission Control Protocol and its Internet
           Protocol.  Similarly, the abbreviation TP-4 refers to both
           the ISO Transport Protocol class 4 and its Internetwork
           Protocol.  (Transport Protocol classes 0 to 3 are used for
           special purposes not related to those of this study.)


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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


      (4)  Validation means a systematic and thorough state-of-the-art
           testing of the products to assure that all technical
           specifications are being achieved.














































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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


                      CONTENTS OF THE FULL REPORT

   PREFACE .........................................................  ix

   EXECUTIVE SUMMARY ...............................................  xi

   I     Introduction ...............................................  1

   II    Review of NBS and DOD Objectives ...........................  3

   III   Comparison of DOD and ISO Protocols .......................  13

   IV    Status of DOD and ISO Protocol
         Implementations and Specifications .......................   25

   V     Markets ...................................................  31

   VI    Development of Standard Commercial versus
         Special Commercial Products ...............................  39

   VII   Responsiveness of International Standards
         Process to Change .........................................  43

   VIII  Options for DOD and NBS ...................................  45

   IX    Cost Comparison of Options ...............................   47

   X     Evaluation of Options .....................................  53

   XI    Recommendations ...........................................  61



















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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


          BOARD ON TELECOMMUNICATIONS -- COMPUTER APPLICATIONS
         COMMITTEE ON COMPUTER-COMPUTER COMMUNICATION PROTOCOLS

   Chairman

      C. CHAPIN CUTLER, Professor of Applied Physics, Stanford
      University, Stanford, California

   Members

      HERBERT D. BENINGTON, Technical Director, System Development
      Corporation, McLean, Virginia

      DONALD L. BOYD, Director, Honeywell Corporate Computer Sciences
      Center, Honeywell Corporate Technology Center, Bloomington,
      Minnesota

      DAVID J. FARBER, Professor of Electrical Engineering and Professor
      of Computer Science, Department of Electrical Engineering,
      University of Delaware, Newark, Delaware

      LAWRENCE H. LANDWEBER, Professor, Computer Sciences Department,
      University of Wisconsin, Madison, Wisconsin

      ANTHONY G. LAUCK, Manager, Distributed Systems Architecture and
      Advanced Development, Digital Equipment Corporation, Tewksbury,
      Massachusetts

      KEITH A. LUCKE, General Manager of Control Data Technical
      Standards, Control Data Corporation, Minneapolis, Minnesota

      MISCHA SCHWARTZ, Professor of Electrical Engineering and Computer
      Science, Columbia University, New York, New York

      ROBERT F. STEEN, Director of Architecture, Communication Products
      Division IBM Corporation, Research Triangle Park, North Carolina

      CARL A. SUNSHINE, Principal Engineer, Sytek, Incorporated, Los
      Angeles Operation, Culver City, California

      DANIEL J. FINK, (Ex-officio), President, D.J. Fink Associates,
      Inc., Arlington, Virginia

      JAMES L. FLANAGAN, (CETS LIAISON MEMBER), Head, Acoustics Research
      Department, AT&T Bell Laboratories, Murray Hill, New Jersey




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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


   Staff

      RICHARD B. MARSTEN, Executive Director
      JEROME D. ROSENBERG, Senior Staff Officer and Study Director
      LOIS A. LEAK, Administrative Secretary












































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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


            COMMISSION ON ENGINEERING AND TECHNICAL SYSTEMS
          BOARD ON TELECOMMUNICATIONS -- COMPUTER APPLICATIONS

   Chairman

      DANIEL J. FINK, President, D.J. Fink Associates, Inc., Arlington,
      Virginia

   Past Chairman

      BROCKWAY MCMILLAN, Vice President (Retired), Bell Laboratories,
      Sedgwick, Maine

   Members

      ARTHUR G. ANDERSON, Vice President (Retired), IBM Corporation, San
      Jose, California

      DANIEL BELL, Henry Ford II Professor of Social Sciences,
      Department of Sociology, Harvard University, Cambridge,
      Massachusetts

      HERBERT D. BENINGTON, Technical Director, System Development
      Corporation, McLean, Virginia

      ELWYN R. BERLEKAMP, Professor of Mathematics, Department of
      Mathematics, University of California, Berkeley, California

      ANTHONY J. DEMARIA, Assistant Director of Research for Electronics
      and Electro-Optics Technology, United Technologies Research
      Center, East Hartford, Connecticut

      GERALD P. DINNEEN, Vice President, Science and Technology,
      Honeywell Incorporated, Minneapolis, Minnesota

      GEORGE GERBNER, Professor and Dean, The Annenberg School of
      Communications, University of Pennsylvania, Philadelphia,
      Pennsylvania

      ANNE P. JONES, Partner, Sutherland, Asbill and Brennan,
      Washington, D.C.

      ADRIAN M. MCDONOUGH, Professor of Management and Decision Sciences
      (Retired), The Wharton School, University of Pennsylvania,
      Havertown, Pennsylvania




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RFC 939                                                    February 1985
Executive Summary of the NRC Report Transport on Protocols


      WILBUR L. PRITCHARD, President, Satellite Systems Engineering,
      Inc., Bethesda, Maryland

      MICHAEL B. PURSLEY, Professor of Electrical Engineering,
      University of Illinois, Urbana, Illinois

      IVAN SELIN, Chairman of the Board, American Management Systems,
      Inc., Arlington, Virginia

      MISCHA SCHWARTZ, Professor of Electrical Engineering and Computer
      Science, Columbia University, New York, New York

      ERIC E. SUMNER, Vice President, Operations System and Network
      Planning, AT&T Bell Laboratories, Holmdel, New Jersey

      KEITH W. UNCAPHER, Executive Director, USC-Information Sciences
      Institute Associate Dean, School of Engineering, University of
      Southern California, Marina del Rey, California

      JAMES L. FLANAGAN, (CETS LIAISON MEMBER), Head, Acoustics Research
      Department, AT&T Bell Laboratories, Murray Hill, New Jersey

   Staff

      Richard B. Marsten, Executive Director
      Jerome D. Rosenberg, Senior Staff Officer
      Karen Laughlin, Administrative Coordinator
      Carmen A. Ruby, Administrative Assistant
      Lois A. Leak, Administrative Secretary




















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