[arin-ppml] Rationale for /22

Kevin Kargel kkargel at polartel.com
Tue Jul 28 13:27:11 EDT 2009


Ted,
> 
> 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.
> 
> Ted

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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