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<p class="msipheader973914b6" align="Left" style="margin:0"><span style="font-size:10.0pt;font-family:Calibri;color:#737373">Dell Customer Communication - Confidential</span></p>
<br>
<div class="WordSection1">
<p class="MsoNormal">Hell NDN Community:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We are working on a research problem and I noted DDSN has some very desirable aspects<o:p></o:p></p>
<p class="MsoNormal">for solving our challenge.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Two questions:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">How is group membership regulated – how do you join a DDSN group?  How do you exit?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">I remember from Vectorsync that scale in terms of membership could be an issue as the state vector increases linearly with number of participants.  Is this an issue for DDSN, what
 is the practical limit in group size?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any insight would be helpful.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jeff<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif">jeff white</span></b><span style="font-size:8.0pt;font-family:"Arial",sans-serif"> | icto - edge technology & autonomous systems | global office – CTO |
<span style="color:#0070C0">Dell Technologies </span>|<span style="color:#444444">
</span>+1.469.380.3368 (w) | +1.214.263.6554 (m)</span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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