25 Aug
2022
25 Aug
'22
5:59 p.m.
Thanks Trevor. I have a solid few days of croquet ahead of me, but I hope
to try this out sometime next week.
My sometimes faulty memory recalls that the XWDRIVER was what used to be
used with the DUP.
Cheers
Peter
On Thu, 25 Aug 2022 at 12:30, Trevor Warwick <twarwick(a)gmail.com> wrote:
Great, feel free to email me if you need any help with
getting it going.
I haven't yet tried it out with a Phase IV P.S.I. setup. In that case one
would use UEDRIVER for the DPV11 and X-something-DRIVER for the DUP, but I
don't know whether I did enough in open-simh to allow those to work - they
may rely on some nuance of the device behaviour that hasn't been tested.
I'm not aware of any X.25 network simulator, so I think a back to back
configuration is all that can be tried currently.
Trevor
On Thu, 25 Aug 2022 at 11:57, Peter Allan <petermallan(a)gmail.com> wrote:
This is exciting. I will try this out.
I have been wanting to set up an X25 system for ages, mainly because we
used X25 to link computers on the UK JANET network back in the 1980s when I
was a manager of a VAXcluster. We ran DECnet over that X25 link as well as
other protocols.
Do you know of any public domain software that simulates an X25 network
that it might be possible to use to connect two or more simulated VAXen
running P.S.I.? The ideas I have found on the internet never seem to have
reached the stage of implementation.
Cheers
Peter Allan
On Thu, 18 Aug 2022 at 15:12, Trevor Warwick <twarwick(a)gmail.com> wrote:
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I recently added HDLC framing support to the DUP11 and DPV11 devices in
open_simh. This has only so far been tested with DECnet-Plus on VMS.
I wrote up another couple of examples, showing how to use HDLC as a
DECnet datalink, and also how to try a basic configuration of VAX P.S.I.
for X.25 communication.
They're here: https://notlikethatlikethis.blogspot.com/
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