On Thu, Sep 13, 2007 at 04:05:09PM +0900, Jun-ichiro itojun Hagino wrote: > > > > > Let me see if I understand this. Without PI, the enterprises say > > > no, and with > > > PI, the ISP's say no. Got it. > > > > I believe that a more constructive assessment is that enterprises are > > unwilling to pay non-trivial costs to renumber, and ISPs are > > unwilling to pay non-trivial costs to support a non-scalable routing > > subsystem. > > my persistent question to the enterprise operator is this: > how frequently do you plan to switch your isp, or how many times > did you do that in the past? > > i have never got any reasonable answer from anyone. OK, I'll bite. Never, and never (in nearly 20 years). Although we in effect have IPv4 PI as being an older university we came online when getting an old Class B was easy, before IP allocations were made from the NREN space. We have renumbered our IPv6 networking as part of experimental/research work (and would from that experience certainly say fully automated renumbering is not possible today), but that was just an academic (and very interesting) exercise. If IPv6 PI were available to us we'd use it because it costs us no extra to do so. -- Tim _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf