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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: as numbers
Hank, At 09:13 29/07/2005, Hank Nussbacher wrote: I'd think that 30 days is too low. What we see (*) is that after 30 days,"Of the 32,557 assigned AS numbers, some 19,859 are advertised, while 12,698 have been allocated in the past, but are not currently advertised in the BGP routing table." I would have liked to see how well the RIRs are at recovering unused ASNs, if at all. For example ARIN has a 30 day policy: http://www.arin.net/registration/templates/asn-request.txt Do the RIRs *ever* revoke an ASN after the customer does not follow the RIR stated rules? Would love to see numbers on that issue. No wonder the ASN pool will expire in 2010. only half of the assigned ASN have appeared on the Internet. Some 75% of the assigned ASN appear on the net in the first 6 months after assignment, 80-85% after a year. Anything not seen after a year (15-20%), is unlikely to ever appear, these can be recovered (at least in theory). While this looks like a lot, it does not really solve any problem. Geoff's numbers show that the pool will expire in 5 years. Our estimate is a little bit longer, but not that much. 2010-2005 is 5 years, if the trend that 20% never appears continues and all these ASN are revoked, this simply means that the pool will expire in 6 years. 2010 or 2011 hardly makes a difference. Henk * Some of our research was presented by Rene Wilhelm @ RIPE50 last May, http://www.ripe.net/ripe/meetings/ripe-50/presentations/ripe50-plenary-mon-asmia.pdf, we have some additional results. We are working on a write-up of all our results, stay tuned. ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(at)ripe.net RIPE Network Coordination Centre http://www.amsterdamned.org/~henk P.O.Box 10096 Singel 258 Phone: +31.20.5354414 1001 EB Amsterdam 1016 AB Amsterdam Fax: +31.20.5354445 The Netherlands The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------ Look here junior, don't you be so happy. And for Heaven's sake, don't you be so sad. (Tom Verlaine)
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