> > Not really responding to you, you just happened to be the last in the thread.. > > Perhaps we should look at tackling some of our dwindling number > resources issues in a different perspective. Have we considered > updating the policy to only issue prefix sizes which are reasonable in > the first place? What makes just setting up an IXP be enough to issue > a /24? What if this IXP is in a market in which there will never be > more than 126 participants? Or worse much less? Should these IXPs be > given /24s when a much smaller allocation may be all that's needed? > Or should every IXP have to start small and as their participation > increases they be issued new space to move into? > > I believe the argument for global prefix visibility of IXP space has > been largely discussed and consensus is that this space does not and > should not be globally reachable voiding any perceived need for a /24 > I believe.
While such an optimization might be possible, I would argue that the potential benefit is not sufficient to justify the effort. Let’s assume a total ARIN region deployment of 25,000 IXPs. Further let’s assume that roughly 1/4 of them fit your criteria of no potential for more than 126 participants. Let’s bound the smallest practical IXP at a /26 (62 participants). Best case, if all of the ~6,250 participants could fit in /26s, you would save 6,250*3/4 = 4,687.5 /24s. Rounding that down (for numerical convenience to 4096, that’s a total savings of a single /12. In reality, the actual savings are virtually guaranteed to be much much less, probably more like 1 or maybe 2 digits of /24s. It’s time to realize that attempts to forestall the runout of IPv4 are futile and stop optimizing the packing of the deck chairs. Owen _______________________________________________ PPML You are receiving this message because you are subscribed to the ARIN Public Policy Mailing List ([email protected]). Unsubscribe or manage your mailing list subscription at: http://lists.arin.net/mailman/listinfo/arin-ppml Please contact [email protected] if you experience any issues.
