[Simh] [SimH] Networking support

[Clem Cole]

FYI:  CDC and Cray's often used HyperChannel adapters; but I suspect have
long lost the info on it (very funky SW interface).  Plus I doubt I still
have the code we developed for it (the HyperChannel was the other side of
the Tektronix TCP/IP for VMS implementation we did in the late 1970's).  My
memory is that we dedicated a PP to talking to NOS, so there was very
little OS code.    We spliced it into the RJE system and never did much
beyond FTP services for it; when I worked on it.   I still talk with the
guy that did the the PP work for NOS (Stan Smith whom I will ask).   The
Cray port was done by the NCAR guys working with our CDC and VMS code; but
that was after I was involved in the work.

BTW: @ LCC we did some work with DG on their UNIX port; I somehow seem to
remember that the Eclipse family used the original AMD ethernet chip set on
their network adapter.

Clem



On Sat, Mar 12, 2016 at 11:20 AM, Bob Supnik <bob at supnik.org> wrote:

> The PDP-10 has networking as well. The H316/516 supports the IMP
> (interface message processor) used for ARPAnet.
>
> Network was only implemented on systems that were in active development
> past the mid 1970s, when commercial networking stacks like TCP/IP, DECnet,
> SNA, BNA, etc emerged. There's an early DECnet implementation for PDP-8
> RTS, but that OS was not widely used. Later Interdata 32b systems offered
> remote job entry (via HASP) and remote printing and terminal service via
> Pennet, but I can't find any documentation on it. (In any case, SimH
> doesn't support the post-Interdata P-E systems.) Later HP 3000s had
> Ethernet; perhaps Dave Bryan will be adding it in some future release.
>
> A number of systems of the early 70s (including the CDC 6600 and the XDS
> Sigma) had one-off interfaces to ARPAnet, using specialized IMPs, but the
> implementations are lost.
>
> If new simulators are written targeting more modern computers, then
> networking is likely to be included. For example, any Alpha simulator would
> have to include Ethernet support.
>
> /Bob
>
> On 3/12/2016 5:45 AM, simh-request at trailing-edge.com wrote:
>
>> Message: 2
>> Date: Fri, 11 Mar 2016 20:41:24 -0500
>> From: "Bill Cunningham"<billcun at suddenlink.net>
>> To:<simh at trailing-edge.com>
>> Subject: [Simh] networking support
>> Message-ID: <018F1E9A1A6A4831B0BED761F38CCD17 at acer684c9a655d>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>>      Are there any plans by the developers and maintainers to add
>> networking support to any of the simulators that do not have it? AFAIK
>> pdp11 and vax are the only two that have networking support.
>>
>> Bill
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