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<div class="moz-cite-prefix">On 13.09.21 20:22, Randy Bush wrote:<br>
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<blockquote type="cite" cite="mid:m2a6kgfi8o.wl-randy@psg.com">
<pre class="moz-quote-pre" wrap="">< rant ></pre>
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<p> </p>
<blockquote type="cite" cite="mid:m2a6kgfi8o.wl-randy@psg.com">
<pre class="moz-quote-pre" wrap="">ipv6 was designed at a time where the internet futurists/idealists had
disdain for operators and vendors, and thought we were evil money
grabbers who had to be brought under control.</pre>
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<p>and...<br>
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<blockquote type="cite" cite="mid:m2a6kgfi8o.wl-randy@psg.com">
<pre class="moz-quote-pre" wrap=""><snip></pre>
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<blockquote type="cite" cite="mid:m2a6kgfi8o.wl-randy@psg.com">
<pre class="moz-quote-pre" wrap="">real compatibility with ipv4 was disdained.</pre>
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<p><br>
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<p>I'm not claiming IPv6 is any sort of perfect, but let's not
revise history.</p>
<p> </p>
<p> </p>
<p>To quote Lee Hayes' adaptation of Will Rogers:<br>
</p>
<p>“Things aren't what they used to be, what's more they never
were.” </p>
<p>There were four proposals for the IPng:</p>
<ul>
<li>NIMROD, PIP, SIP, and TUBA</li>
</ul>
<p>SIP was the one that was chosen, supported by endpoint
manufacturers such as Sun and SGI, and it was the MOST
compatible. Operators and router manufacturers at the time
pushed TUBA, which was considerably less compatible with the
concepts used in v4 because of variable length addressing. If
we endpoints had some notion that v6 would take as long as it
has to diffuse, perhaps we all might have thought differently.
I don't know.<br>
</p>
<p>There is no evidence that any other design choices on the table
at the time would have gotten us transitioned any faster, and a
lot of evidence and analysis that the exact opposite is more
likely. There are many reasons v6 has taken this long to
deploy, but one prediction model (Elmore/Camp) dating back to
2008 have said it would take to the end of the century to get to
80%, barring a paradigm shift. We may have that paradigm shift
with IoT, but the jury is still out.</p>
<p>Eliot<br>
</p>
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