Alan, > Alan E. Beard wrote: > No wonder we're at an impasse: we have a blind-men-and-the-elephant > problem here!
No. We know what the elephant looks like. This is not the issue. The issue is that for the last eight years we have been trying to design an animal that carries as much as an elephant, at the speed of a cheetah, drinks as little as a camel, an possibly poops only in the toilet and flushes when done. > The common, underlying issue, as I see it, is: > The use of PA space in end-user networks has the effect of imposing > upon those networks functional burdens and restrictions in multiple > areas which the managers of commercial end-user networks may be > unwilling to tolerate. In consequence, we may need to reconsider > our current address allocation practice, which relies principally > on the PA model, in light of current user expectations, current > state of the routing protocols and standards, and anticipated > developments in routing and switching code. Given the rest of your postings, this appears to be a rather black-and-white view from the enterprise point of view. For the same reason multi6 has failed by limiting the scope to site multihoming, this approach is equally doomed to fail because it ignores the issues of large operators. There is some quality work that has been done in the field of PA multihoming solutions as well, such as: http://www.ietf.org/internet-drafts/draft-huitema-multi6-hosts-01.txt Although the current IPv6 architecture indeed favors the large operator over the enterprise to the point that the enterprise network manager's feet feel the IPv6 water too cold to put more than the tip of the toe in (and this needs more balance), the other side of this coin is that if one wants to make a buck out of IPv6 today one has to look at Asia and to a lesser extent Europe for markets that involves a large percentage of mobile devices that are a good fit for the PA model. No bucks, no Buck Rogers. Michel. -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
