[HECnet] ANF10 network --> DN200 (RJE, Decnet) --> should be Ddcmp --> Re5

[R. Voorhorst]

Yes, my idea as well and sync idle could probably be simulated with a 1
character sync packet (Udp?) every 10 sec. or so to determine (dead) line
timeouts.  So a certain simh standard for simulation for this should first
be defined.
Nice job for the creative programmers amongst us ...

Reindert

-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf
Of Paul Koning
Sent: Friday, 19 November, 2021 01:12
To: hecnet at update.uu.se
Subject: Re: [HECnet] ANF10 network --> DN200 (RJE, Decnet) --> should be
Ddcmp --Re3

It seems like a very simple matter to simulate it as a basic character
device, separate from the KMC pairing.  The only real question is how you
represent a sync data stream in a simullated device.  Is it just the byte
stream over a TCP connection?  That would be easy for synchronous character
mode.  If  you also want to simulate HDLC sync devices, that's a different
matter entirely; there isn't an obvious way to do that.

In other words, if someone wants this, just design how it communicates and
do the code, it doesn't sound hard.

	paul

> On Nov 18, 2021, at 6:35 PM, R. Voorhorst <R.Voorhorst at swabhawat.com>
wrote:
> 
> No, the Dup is only simulated as Kdp/Dup combo, hence the Ddcmp
characteristics of the pair.
> 
> 
> Reindert
> 
> -----Original Message-----
> From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On
Behalf Of Johnny Billquist
> Sent: Friday, 19 November, 2021 00:31
> To: hecnet at Update.UU.SE
> Subject: Re: [HECnet] ANF10 network --> DN200 (RJE, Decnet) --> should be
Ddcmp --Re2
> 
> Fair enough.
> 
> But DUP11 is a sync character based interface. So that one too requires
that you do DDCMP in software. But I didn't think simh simulated a DUP11?
> 
>   Johnny