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        <pre class="moz-signature" cols="72">This communication may not represent my employer's views,
if any, on the matters discussed. 
</pre>
        Wasn't Phase IV the first release that supported Ethernet?</blockquote>
      Yes.<br>
      <blockquote type="cite">My recollection is that DECnet always used
        DDCMP over serial lines.  I thought the DMR did the DDCMP
        protocol in hardware.  </blockquote>
      Yes, yes.<br>
      <br>
      <blockquote type="cite">Maybe DMZ's too?</blockquote>
      No.  <br>
      <br>
      <pre class="moz-signature" cols="72">This communication may not represent my employer's views,
if any, on the matters discussed. </pre>
      On 07-Jun-13 18:24, Larry Baker wrote:<br>
    </div>
    <blockquote cite="mid:EB197BB1-F8EE-44A3-95FF-F477E1DC5587@usgs.gov"
      type="cite">
      <div><span class="Apple-style-span" style="border-collapse:
          separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue';
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          letter-spacing: normal; line-height: normal; orphans: 2;
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          -webkit-text-decorations-in-effect: none;
          -webkit-text-size-adjust: auto; -webkit-text-stroke-width:
          0px; font-size: medium; ">On 7 Jun 2013, at 2:58 PM, <<a
            moz-do-not-send="true"
            href="mailto:simh-request@trailing-edge.com">simh-request@trailing-edge.com</a>>
          <<a moz-do-not-send="true"
            href="mailto:simh-request@trailing-edge.com">simh-request@trailing-edge.com</a>>
          wrote:</span></div>
      <div><br class="Apple-interchange-newline">
        <blockquote type="cite"><span class="Apple-style-span"
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              style="font-family: monospace; ">------------------------------<br>
              <br>
              Message: 2<br>
              Date: Fri, 07 Jun 2013 17:58:40 -0400<br>
              From: Timothe Litt <<a moz-do-not-send="true"
                href="mailto:litt@ieee.org">litt@ieee.org</a>><br>
              To: Mark Pizzolato - Info Comm <<a
                moz-do-not-send="true" href="mailto:Mark@infocomm.com">Mark@infocomm.com</a>>,<br>
              <span class="Apple-tab-span" style="white-space: pre; "> </span>"<a
                moz-do-not-send="true"
                href="mailto:simh@trailing-edge.com">simh@trailing-edge.com</a>"
              <<a moz-do-not-send="true"
                href="mailto:simh@trailing-edge.com">simh@trailing-edge.com</a>><br>
              Subject: Re: [Simh] PDP-10 simulator with DMR/KDP support?<br>
              Message-ID: <<a moz-do-not-send="true"
                href="mailto:51B25790.50804@ieee.org">51B25790.50804@ieee.org</a>><br>
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              <br>
              <blockquote type="cite">
                <blockquote type="cite">I  don't think the DUP11 was
                  ever a supported device on VMS.<br>
                </blockquote>
              </blockquote>
              <br>
              Yes, it was.  See<span class="Apple-converted-space"> </span><a
                moz-do-not-send="true"
                href="http://h71000.www7.hp.com/doc/spddecnetplusvax73.pdf">http://h71000.www7.hp.com/doc/spddecnetplusvax73.pdf</a><span
                class="Apple-converted-space"> </span><br>
              page 13 table 2.  DUP wasn't added in 7.3;  it would have
              been there all<span class="Apple-converted-space"> </span><br>
              along.  This was just the first SPD I grabbed.  There were
              also sync<span class="Apple-converted-space"> </span><br>
              line adapters for Microvax - I have one here, I think.
               DSW4{1,2,3}.  <br>
              And QBus (DPV/DSV, BI (DMB/DSB).  Gory details in the SPD.<br>
              <br>
              You needed the WAN Drivers layered product, though.<br>
              <blockquote type="cite">The DUP11 is supported on a VAXBI
                system fitted<br>
              </blockquote>
              <blockquote type="cite">with a DWBUA UNIBUS adapter for
                VAX 8200, VAX<br>
              </blockquote>
              <blockquote type="cite">8250, VAX 8300, VAX 8300, VAX
                8350, VAX 8500,<br>
              </blockquote>
              <blockquote type="cite">VAX 8530, VAX 8550, VAX 8700, and
                VAX 8800 systems only<br>
              </blockquote>
              <br>
              (Oddly, I didn't see DMC/DMR listed, but I do remember
              them working...)<br>
              <br>
            </span></span></blockquote>
        <div><br>
        </div>
        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!).</div>
      <div><br>
      </div>
      <div>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?</div>
      <div><br>
        <blockquote type="cite"><span class="Apple-style-span"
            style="border-collapse: separate; font-family: 'Helvetica
            Neue'; font-style: normal; font-variant: normal;
            font-weight: normal; letter-spacing: normal; line-height:
            normal; orphans: 2; text-align: -webkit-auto; text-indent:
            0px; text-transform: none; white-space: normal; widows: 2;
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            -webkit-text-decorations-in-effect: none;
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            0px; font-size: medium; "><span class="Apple-style-span"
              style="font-family: monospace; ">Yes, Phase V supported
              DDCMP as a transport layer.  No version change.<br>
            </span></span></blockquote>
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      <br>
      <div>Larry Baker<br>
        US Geological Survey<br>
        650-329-5608<br>
        <a moz-do-not-send="true" href="mailto:baker@usgs.gov">baker@usgs.gov</a><br>
        <br>
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      <pre wrap="">_______________________________________________
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