@make[report]
@device[X2700]
@majorheading[
Proposal to the GEC/ALVEY Steering Comittee
to Acquire the Computer Board's Recommended
Protocols for use on SCMA/CD LANs]

@subheading[1. Introduction]
The ERCC  implemented ISO Transport Class 4 running over Logical Link Control -
LLC1 at a time before there was a firm recommendation on Ethernet protocols 
from JNT.  The Computer Board is now recommending a different set of protocols for use
on Ethernet and it is the intention of ERCC  to implement the Computer Board set of protocols as
a replacement for Class 4/LLC1.
@subheading[2.]
ERCC will develop and mount the OSI Network Service as defined in DIS 8348
using the X25 (1984) protocol as specified in DIS 8208 and the Logical Link
Control as specified in DIS 8802/3 Class II.  The detailed implementation
will correspond to the JNT recommendation as in -
                 @format[
                 Implemetation Details for Protocols on CSMA/CD Lans
                             JNT/CSMA/CD LAN (85)]
This document is currently in draft form, but the actual implementation will be
aligned to the final document.

The work will be split into two distinct parts, the first will be to write a
protocol implementation in 'C' in as portable a manner as is practicable.  The second
part will be to deliver a working version of this software on the UX63 operating
system for the GEC Series 63 computer.
@subheading[3. Interfacing]
This code will completely replace the existing code that implements Class 4/LLC1
as described in paper AG1P 66 and will match the described interfaces. (or those
as defined by the ALVEY/GEC Implementation Committee.)
@subheading[4. Documentation]
Documentation already exists for JNT Coloured Book protocols running
over LLASS4/LLC1 implementation
guide for the X25 and LLC2 code will be produced.
@subheading[5. Support]
ERCC will undertake to rectify faults in the X25 or LLC2 code for a period
of six months.  After that period one would expect faults to be handled under
the normal Alvey support arrangements but ALVEY could seek be made a seperate agreement with ERCC if
necessary.
@subheading[6. Intellectual Property Rights]
ERCC will retain the right to develop and market this software in which ever manner
it chooses.  ALVEY will receive rights to mount this software on any
Infrastructure machine for use within the ALVEY Project.  GEC as collaborators
in the ALVEY/IKBS Infrastructure will receive exclusive rights to market
this software on the GEC Series-63 machine range.

Neither GEC or ALVEY (or their agents) will pass the software to third parties
for onward marketing woutout the prior consent of ERCC.


@subheading[7. Costs]

ERCC would charge ALVEY @t(#)37,500 for delivery of the above software.
@subheading[8. Timescales]
The implementation effort is estimated at 18 man months, ERCC will
assign one full time and one part time person to complete the product within
12 months of a formal commitment by ALVEY to purchase the software.



@flushright[B. A. C. Gilmore]