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Network Working Group                                             PostelRequest for Comments: 945                                            ISI                                                                May 1985A DoD Statement on the NRC ReportSTATUS OF THIS MEMO   This RFC reproduces a letter from the Assistant Secretary of Defense   for Command, Control, Communications, and Intelligence (ASDC3I) to   the Director of the Defense Communications Agency (DCA).  This letter   is distributed for information only.  Distribution of this memo is   unlimited.CONTEXT   In December 1978, the Principal Deputy Under Secretary of Defense for   Research and Engineering, Gerald P. Dinneen, USDR&E, issued a   memorandum mandating the use of TCP/IP for all packet-oriented data   networks where there is potential for host-to-host connectivity   across network or subnetwork boundaries, and designating the Defense   Communications Agency as the DoD Executive Agent for computer   communications protocols (see IEN-152).   In April 1980, the Assistant Secretary of Defense for Communications,   Command, Control, and Intelligence, Gerald P. Dinneen, ASDC3I, issued   a memorandum reaffirming the requirement of TCP/IP, confirming the   role of DCA as the Executive Agent, and approving a plan for the   organization and activities of the Executive Agent (see IEN-152).   In March 1982, Richard D. DeLauer, ASDC3I, issued a memorandum   reaffirming the requirement for the use of TCP/IP, and reaffirming   the role of DCA as Executive Agent (see IEN-207).   However, there is also a DoD policy of long standing to use non-DoD   standards when such standards are available and meet the military   requirements.  This policy is cited in DeLauer's memorandum.   Because questions were raised about the DoD use of TCP/IP as a   protocol standard, while the ISO is developing an differing set of   standards, and the NBS is working toward establishing the ISO   standards as FIPS, in May 1983 the National Research Council (NRC)   was asked jointly by DoD and NBS to study the issues and recommend a   course of action.  The final report of the NRC committee was   published in February 1985 (seeRFC-942).   The enclosed letter is from Donald C. Latham (ASDC3I) to DCA   transmitting the NRC report and requesting specific actions relative   to the recommendations of the report.Postel                                                          [Page 1]

RFC 945                                      DOD Statement on NRC ReportDEPARTMENT OF DEFENSE                                         April 1985                     Assistant Secretary of Defense                     Washington, D.C.,  20301-3040Command, Control,Communications     andIntelligenceMEMORANDUM FOR DIRECTOR, DEFENSE COMMUNICATIONS AGENCYSUBJECT:  National Research Council Report on Transport Protocols for          DoD Data Networks     Attached is the final report on "Transport Protocols for Departmentof Defense Data Networks" from the National Research Council (Board onTelecommunications and Computer Applications, Commission on Engineeringand Technical Systems).  The report recommends that DoD immediatelyadopt the International Standards Organization Transport Protocol (TP-4)and Internetwork Protocol (IP) as a DoD co-standard to the current DoDstandard Transmission Control Protocol (TCP) and IP and move ultimatelytoward exclusive use of TP-4.     Whenever international standards are available and can be used tosupport military requirements, they will be implemented as rapidly aspossible to obtain maximum economic and interoperability benefits.However, TP as a proven commercial offering is not available at thistime.  The progress of TP will be monitored carefully and oncecommercially available, TP will be tested and evaluated for use inmilitary application.     In order to insure that DoD is in a posture to evaluate TP once itis in wider use in the commercial sector, request you initiate thefollowing actions:   (1)  develop the DoD military requirement specification for TP to        insure that industry is aware of DoD needs as TP is commercially        implemented.   (2)  insure that appropriate advisory representation is provided to        commercial standards working groups that are currently refining        TP under the auspices of the National Bureau of Standards.   (3)  insure that the DCA protocol test facility can accommodate TP        testing as required when commercial implementations are        available.   (4)  develop a transition strategy for Option 2 of the report to        include estimated resource requirements.   (5)  evaluate the detailed recommendations presented in the Report        (pages 61-64) as they apply to Option 2.                                                        Donald C. LathamPostel                                                          [Page 2]