[arin-ppml] IPv6 Heretic thoughts

Milton L Mueller mueller at syr.edu
Fri Sep 5 13:15:40 EDT 2008

> -----Original Message-----
> From: Cort Buffington [mailto:cort at kanren.net]
> I "translated" the concept of moving from IPv4 to IPv6 with my two-way
> friend by comparing it to moving from 25kHz channels to 12.5kHz
> channels in analog FM (for example), 

Yes, but this kind of change in fact WAS made repeatedly in the 2-way
radio space, within the same spectrum. The situation was quite analogous
to running out of IPv4 addresses. Instead of expanding the amount of
spectrum used, specialized mobile radio operators made equipment and
standards changes to enable more intensive use of existing spectrum. It
is very similar to using NAT or some other reorg of existing address

Transfers or no transfers, people will be faced with economic incentives
of that sort. 

So, don't assume that if we just shut off IPv4 then everyone will
migrate to IPv6. Herrin and others have been making the much more
realistic point that that may not happen. People may just make more
intensive use of IPv4 via NAT and other techniques. 

> "spectrum savings" equal to the address space added by IPv6 (obviously
> much more drastic savings than 2:1). His answer, having lived with the
> loss of spectrum and business for many years now, was that it would
> clearly be worth, and would have been worth the necessary
> infrastructure changes to accommodate it, and that given the CHOICE,
> he would have suffered infrastructure upgrades had he been given an
> option back then. We have an option now, but folks don't seem to see
> value. Perhaps if we didn't have an option, an option would look
> better to us?
> I'm overly philosophical about it I'm afraid.
> Cort

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