@h[Proposal for a File Transfer Protocol Facility]

The ERCC is proposing to write a program for the ICL network Manager,
running on an Intel iRMX system, to implement a restricted version of
the @b['Blue Book'] Network Independent File Transfer protocol.

   @u[1. Restrictions]

      1.1  Only a @b['P'] end will be implemented, ie, the
           Network Manager can initiate calls to either
           'take' or 'give' a file but will not accept
           requests from another host.

      1.2  The subset of FTP implemented will be to the 
           standard of Appendix 3, ie, the Open Working Set.

  @u[2. Prerequisite]

      2.1  The ERCC will use as a basis the existing ICL file
           transfer program for the interface to Netskil 
           and iRMX file system.

  @u[3. Interworking]

      The ERCC will test the program against all hosts on ethernet that
      support the relevant lower protocals at ERCC;  no guarantee is made that
      it will work against other hosts, although a design aim will be to make
      it as flexible as possible.  Work requested to test it against other hosts     
      is outside the scope of this proposal.

  @u[4. Performance Criteria]

      No estimate can be given of performance as it is heavily dependent
      on the supplied interfaces to both the iRMX filing system and to
      the LAN access routine.  The performance should not however be significantly
      worse than the ICL program.   It should be noted that, in common
      with the ICL program, it will not run concurrently with the 
      network manager software.

  @u[5. Testing]

      The program will be dependent on the implementation at ERCC of a
      host with a 'Q' end FTP.  Consequently completion of the program
      will be after the completion of FTP on an ethernet host at ERCC.

  @u[6. Implementation]
      
      The following estimate of the component parts of the Project are
      in man weeks.

       Functional Specification    2 weeks
       
       Learning curve on Netskil
       system & ICL program        2 weeks

       Design                      4 weeks

       Coding                      4 weeks

       Testing                     6 weeks

       Final Documentation         2 weeks
                                ----------
                                  20 weeks
                                ----------

  @u[7. Cost]

    The cost for the project will be #12,000 and includes -

        1. 20 man weeks at a rate of #2,500 per man year

        2. Machine time on both the development system and
           on hosts exercising the FTP program.

        3. Materials such as line printer paper, floppy
           discs etc.

     




                                                           B. A. C. Gilmore
                                                            5th June 1984.