[arin-ppml] Rationale for /22
kkargel at polartel.com
Tue Jul 28 13:27:11 EDT 2009
> If you set the minimum size of a table entry to /25 instead of /24 then
> you have now doubled the possible table entries. It doesn't matter if
> the entries are gratuitous or not, the way subnet mathematics works, for
> every drop in the bit boundary, from /25 to /26 to /27 and so on, you
> double, quadruple, etc. the total possible route entries.
> With the increase in router ram and router CPU speed over the years,
> some decrease in the minimum is warranted. If we didn't have IPv6
> coming up - which will also double the number of advertisements once
> everyone runs dual-stack - we could support an even further decrease
> in the minimum. But we can't yet support multiplying the number of
> potential routing slots by 200 on the Internet.
So are you saying then that we need to limit the number of organizations
that have IP allocations to manage the number of slots?
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