[address-policy-wg] Policy proposal: #gamma IPv6 Initial Allocation Criteria
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Thomas Narten
narten at us.ibm.com
Tue Apr 5 16:39:29 CEST 2005
Michael.Dillon at radianz.com writes: > > If these policies cause 2000::/3 to be exhausted then there are 7 more > > tries left to do it all over again. > This is the essential characteristic of IPv6 that so many > of us, weaned on IPv4, seem to forget. We need to keep this > fact uppermost in our minds at all times. Even this subset > of IPv6 is much bigger than the IPv4 space. So we can afford > to be generous and, in fact, we can afford to make mistakes. > If we err, we should err on the side of being slightly too > generous because if 2000::/3 runs out, we can try again, > older but wiser. I have a very basic problem with this view point. It becomes an excuse to brush aside serious concerns about a particular policy under the "well, if we botch it, we can try again later" argument. It's one thing to have a fall back plan to deal with unforeseen problems. It's quite another to recklessly move in a direction with significant long-term implications just because "we can always try again later". > This means that we should not be excessively concerned with > conserving address space or wasting addresses. It is entirely > appropriate to give a /32 to anyone who might be some sort > of an ISP, either traditional or some new type, like Google > or BMW or Cadburys. And, do you have an estimate of how many such "ISPs" exist today, or will exist in 10-20 years? E.g., are we talking about 10,000 entities (not scary), or 1 million (scary to me). Thomas
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