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This document describes the virtual terminal hacks available from
HOSS. There are some basic ground rules for the use of these hacks.
1) All virtual terminal support programs which are not mentioned in an
SPR are unsupported. 2) All unsupported software is to be presented to
customers as unsupported software. i.e. sell PL90 with it or describe
its unsupported nature in writing. NEVER describe unsupported software
as a part of a DECnet product.
Virtual terminal support software can be listed a number of ways:
1) Supported or unsupported
2) Protocols it supports
3) Provides pseudo routing in phase II networks or not
(poor man's routing)
Many virtual terminal programs can be written by making different
choices from the above list. Following are the programs provided on
this tape. Remember that a virtual terminal facility requires both
active and passive programs, and that the protocol used must be the
same for both programs.
1) TOPS20 ---> TOPS20. This is supported for DECnet-20 V2.1. The
active task is SETHOST.EXE, the passive task is MCBNRT. Both are on
the DECnet-20 V2.1 Distribution tape.
2) TOPS20 ---> VAX, RSTS, IAS, RSX11M, RT. The active task on the -20
is HOST.EXE. It is provided on both the TOPS-20 Tools tape and the
DECnet-20 V2.1 SWSKIT. It supports poor man's routing.
3) RSTS/IAS ---> TOPS20. The RSTS program NET20.BAS, provides both
the active and passive tasks for virtual terminal support. It also
does poor man's routing. To install it, get it with the OLD command,
then merge the RSTS DECnet routines. This is unsupported code, based
on the supported NCT utility. It uses NRT20 protocol and communicates
with HOST.EXE on the -20. The passive task on the -20 is NRTSRV.
4) RSX11M ---> TOPS20. The RSX11M Macro program 11HOST.MAC, provides
the active task to communicate to the -20. This is unsupported code
which uses the NRT20 protocol. It should work on both Phase II and III
5) VMS ---> TOPS20. The VMS command SET HOST nodename allows you to
communicate to the -20. The -20 program NRTSRV (or MCBNRT for Rel 5.0
KL model B sites) provides the passive task.
6) TOPS10 <---> TOPS20. Active and passive tasks are available to
communicate over the TOPS-10 DECnet Compatible Port (DCP) with the -20.
They are available on the DCP tape available through Software Services.