1 Oct
2023
1 Oct
'23
5:14 p.m.
ARGH! I've finally found a good argument for really kicking that whole
ugly mess of pacing serial ports to "fake" the real experience.
Turns out it's not as good as it thinks. For normal terminal use, that
might be fine, but I'm actually doing something else here...
So, as I mentioned, I have this XHomer instance, which I've actually
have hooked up to HECnet in the past. Well, as I tried yeasterday, I
failed to get it working. The circuit was constantly going down and
coming up again. I had a nagging suspicion about the pacing, since it
had worked in the past, but I wasn't entirely sure if that was with a
simh old enough to not have had that pacing. And looking at
communication, I didn't see any huge time issues, so I went and put in
loads of debugging in simh, in XHomer, and also on my fake null modem
cable between the two instances.
After a lot of messing around I was finally sure that the data as such
was not corrupted anywhere between the two sides, in either direction.
So all data was getting across correctly... However, there was a little
bit of funniness I noticed on the timing sometimes.
Well, it turns out that the pacing actually is the problem. The DDCMP
handling in DECnet have tight enough timing requirements on the serial
that the pacing in simh cause timeouts in the DECnet communication.
I wasted almost two days on that "feature" that I have hated from day 1.
Anyway, if anyone wants to see what a P/OS DECnet node looks like,
BJARNE:: is now up and running, and you can talk to it.
Johnny
On 2023-09-30 16:46, Johnny Billquist wrote:
Oh, and for the really twisted part... I have actually
played some with
XHomer. And I actually can get an XHomer instance up and running hooked
to HECnet.
However, something have become a bit broken on simh for me faking a
serial port. I need to check this up a bit, but I should be able to get
BJARNE:: online later today I hope...
Johnny
On 2023-09-30 16:20, Johnny Billquist wrote:
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On 2023-09-30 16:15, John Forecast wrote:
NML should still be in there, yes. However, NCP is not.
Also, I'm not sure if even NFT is in there (but I would hope so). But
usually you access files, as everything else, through the menu system.
Even for remote machines.
Some things in P/OS are actually rather nice. It's just that it was so
limiting in other ways, and they locked themselves into slow hardware
and only use what the F11 could provide.
Johnny
On Sep 29, 2023, at 5:24 PM, Johnny Billquist
<bqt(a)softjar.se> wrote:
On 2023-09-29 22:45, Robert Armstrong wrote:
>> Dave McGuire <mcguire(a)neurotica.com> wrote:
>> I've gotten a Pro380 running at LSSM, and have just
>> gotten a DECNA board installed. Can anyone point me to any docs for
>> Pro/DECnet?
> Is it safe to assume that you're running P/OS? Isthe P/OS
> DECnet the
> same as the MicroRSX DECnet?
No. Pro/DECnet is it's own thing.
Completely different management, tools and interface.
(It do share some amount of source with the RSX family, but it
really don't help much for anyone using it.)
I forgot about the management. I assume NML is still there for remote
management - Is NCP still there if you can get to a command line?