Geoff Huston wrote: > You, and the community, may find these two AS number use reports helpful. It's quite interesting to see the lack of scalability of multihoming by routing is destroying the Internet. > The first, http://www.potaroo.net/tools/asn16/ looks at the levels of > consumption of the 16 bit AS number space and makes some predications, > based on curve fitting to recent usage data, as to the anticipated > lifetime of this number pool. According to http://bgp.potaroo.net/as2.0/bgp-active.html, most ASes are used with /24 prefixes seemingly for punching holes. It's not surprising that 32-bit AS space will exhaust in near future just like 32-bit address space is exhausting and the only solution is to deply end-to-end scalable multihoming AND restrict top level aggregator space, both of which IPv6 failed to do. Masataka Ohta _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf