Free software BY
Project Software & Development, Inc.

This software is furnished for free and may be used and copied as
desired. This software or any other copies thereof may be provided
or otherwise made available to any other person. No title to and
ownership of the software is hereby transferred or allowed.

The information in this software is subject to change without notice
and should not be construed as a commitment by PROJECT SOFTWARE
AND DEVELOPMENT, INC.

PROJECT SOFTWARE assumes no responsibility for the use or reliability
of this software on any equipment whatsoever.

Project Software & Development, Inc.
14 Story St.
Cambridge, Ma. 02138
617-661-1444

Program: VAXNET
Author: Roger Lipsett INTERMETRICS April 1979.
Rewritten by: Robin Miller Project Software & Development, Inc. 1981

VAXNET is a program used to transfer ASCII files over an asynchronous
communications line between two computers. The progams supplied in
this directory allow for communications between VAX and VAX or between
VAX and RSX11M. Two programs called F2T and T2F allow task images to
be converted into ASCII records, transferred to the other computer,
and then converted back to a task image which can be run.

This program has several enhancements over the original which include:

o Help available on each question by typing the ESCape key.
o Ability to backup to the previous question by typing the ! key.
o Automatic setup of both local and remote terminal ports.
o The ability to put output from the remote into a logfile
on the VAX which can then be REFORMATed and printed/edited.
o Terminal I/O is done in full duplex mode.
o Better error checking and recover when transfering files.

Several problems:

o occasionally the program will get stuck in a HIBERNATE state
or will exceed its buffer I/O quota (my count was 6). When
stuck in the HIBERNATE state, it must be STOPped from another
terminal.
o when VAXNET is talking to another VAX (at 9600 baud), the XON/
XOFF which the terminal driver sends when the typeahead buffer
is almost full does not always work properly (loose characters).
This problem it not so bad when communicating with RSX-11M or
if the baud rate of the remote terminal port is less than that
of the local port. The problem does not exist if the remote
port is at 1200 baud.

Build Procedures:

List file VAXNET.HLP for helping on building VAXNET & SNDRCV.