On 15 July 2015 at 01:34, Owen DeLong <owen@delong.com> wrote:
For one thing a /32 is nowhere near enough for anything bigger than a modest ISP today. Many will need /28, /24, or even larger. The biggest ones probably need /16 or even /12 in some cases.
What is the definition of a modest and a large ISP? In the RIPE region even the smallest ISP can get a /29 with no documentation necessary. But likely that is all they will ever get because policy requires that you use that /29 at about 30% efficiency if you do /48 allocations to end users. You would need more than a million users to get a /24. I do not think the RIPE region has an ISP large enough to apply for a /16 or anything near it. Therefore we can conclude that if ARIN manages to use up all the /3 address space currently reserved for allocation, we will still be able to get address space in Europe for the next thousands years :-). It is thought that RIPE will not use up the /12 that IANA allocated to RIPE - ever. Personally I believe the ARIN policy is the sane one. But we need to abide by the rules in the region we live in. Regards, Baldur