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C00002 00002	This is a request a renewal of NSF Grant xxxxxx in the period
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This is a request a renewal of NSF Grant xxxxxx in the period
January 1, 1979 to December 31, 1980 to complete the Dialnet protocols and
experimental implementation.  $yyy are requested for calendar 1979
and zzz for 1980.

The aim of the project is the same as that of our previous
proposal a copy of which is included as appendix A.

Up to July 1978, one year into the grant period, the following had
been accomplished:

1. We have conferred with individuals and groups at
 ARPA,
Bell Telephone Laboratories,
Columbia University,
 Digital Equipment Corporation,
 IBM,
 M.I.T.,
 National Institutes of Health,
 and
 SRI International
about the form the protocols should take.  We believe we can satisfy
all reasonable requirements if not all reasonable tastes.

2. The following protocols exist in draft form and are included as
appendices B thru D of this proposal.  The basic line protocol is
described in Appendix B.  The mail protocol is described in Appendix
C.  The virtual terminal protocol is described in Appendix D.

3. Modems have been acquired and installed at the Stanford Artificial
Intelligence Laboratory and at the Stanford Low-Overhead Time-sharing
System.
We have chosen the Bell System 1200-1200 full duplex protocol for
the modems and have purchased Vadic modems meeting this standard.

4. The basic line transmission protocols have been programmed and
revised once in the light of that experience and reprogrammed.

We hope to implement the basic protocols at LOTS and at the AI Lab
and have experimental mail transmission by the end of summer.

The biggest unknown is whether operating systems will be able
to sustain the 1200 baud transmission rate without buffer
overflow.  If not some sort of micro-processor front end for
Dialnet may be required by many of them.