[Simh] PDP-10 simulator with DMR/KDP support?

[Timothe Litt]

>
> This communication may not represent my employer's views,
> if any, on the matters discussed.
> Wasn't Phase IV the first release that supported Ethernet?
Yes.
> My recollection is that DECnet always used DDCMP over serial lines.  I 
> thought the DMR did the DDCMP protocol in hardware. 
Yes, yes.

> Maybe DMZ's too?
No.

This communication may not represent my employer's views,
if any, on the matters discussed.

On 07-Jun-13 18:24, Larry Baker wrote:
> On 7 Jun 2013, at 2:58 PM, <simh-request at trailing-edge.com 
> <mailto:simh-request at trailing-edge.com>> 
> <simh-request at trailing-edge.com 
> <mailto:simh-request at trailing-edge.com>> wrote:
>
>> ------------------------------
>>
>> Message: 2
>> Date: Fri, 07 Jun 2013 17:58:40 -0400
>> From: Timothe Litt <litt at ieee.org <mailto:litt at ieee.org>>
>> To: Mark Pizzolato - Info Comm <Mark at infocomm.com 
>> <mailto:Mark at infocomm.com>>,
>> "simh at trailing-edge.com <mailto:simh at trailing-edge.com>" 
>> <simh at trailing-edge.com <mailto:simh at trailing-edge.com>>
>> Subject: Re: [Simh] PDP-10 simulator with DMR/KDP support?
>> Message-ID: <51B25790.50804 at ieee.org <mailto:51B25790.50804 at ieee.org>>
>> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>>
>>>> I  don't think the DUP11 was ever a supported device on VMS.
>>
>> Yes, it was.  Seehttp://h71000.www7.hp.com/doc/spddecnetplusvax73.pdf
>> page 13 table 2.  DUP wasn't added in 7.3;  it would have been there all
>> along.  This was just the first SPD I grabbed.  There were also sync
>> line adapters for Microvax - I have one here, I think.  DSW4{1,2,3}.
>> And QBus (DPV/DSV, BI (DMB/DSB).  Gory details in the SPD.
>>
>> You needed the WAN Drivers layered product, though.
>>> The DUP11 is supported on a VAXBI system fitted
>>> with a DWBUA UNIBUS adapter for VAX 8200, VAX
>>> 8250, VAX 8300, VAX 8300, VAX 8350, VAX 8500,
>>> VAX 8530, VAX 8550, VAX 8700, and VAX 8800 systems only
>>
>> (Oddly, I didn't see DMC/DMR listed, but I do remember them working...)
>>
>
> We ran DMRs between our VAX-11/780 and PDP-11/70 RSX-11M-Plus -- 
> predating DECnet Phase IV.  (Wasn't Phase IV the 
> first release that supported Ethernet?)  I remember doing poor-man's 
> routing from the VAX through the 11/70 to an LSI-11/23 in a lab (over 
> a DZ-11 async serial line!).
>
> My recollection is that DECnet always used DDCMP over serial lines.  I 
> thought the DMR did the DDCMP protocol in hardware.  Maybe DMZ's too?
>
>> Yes, Phase V supported DDCMP as a transport layer.  No version change.
>
> Larry Baker
> US Geological Survey
> 650-329-5608
> baker at usgs.gov <mailto:baker at usgs.gov>
>
>
>
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