On Thu, Dec 4, 2008 at 11:36 AM, Teco Boot <[EMAIL PROTECTED]> wrote: > On Strategy G: >>> Make everybody attach to only one ISP using IPv6 and the ISP's single set > of PA addresses, as originally intended for IPv6. > Can you provide a xref for this statement? > RFC1887 describes 4 solutions for Multi-homed Routing Domains (section 4.4).
Hi Teco, I was being sarcastic and a little condescending. I should probably rewrite it more like RFC 1987 4.4.3 and move the sarcasm to the criticisms section. RFC 1887 4.4.1 is strategy F: do nothing. RFC 1887 4.4.2 is obviously not functional with *currently deployed network stacks*. It would need the kind of software described in strategy B or H in order to be viable. Or do you disagree? RFC 1887 4.4.3 turns into strategy G once you actually fill in the details. Hence my condescension. RFC 1887 4.4.4 is knuckleheaded. You want to avoid a dependence on one ISP so you get another ISP who won't work except by sending traffic through the first ISP? Seriously? It doesn't belong in the solution domain. > On Strategy B and H: > I think the difference of the two strategies is minor. Make methods A2a and > A2b for these? I vacillated on that for a while and eventually came down on the side of calling it a different strategy. I think if the difference was truly minor, IPv6 would have worked out a whole lot better than it has. > And on the criticisms: > With B: Why would LOCs be constantly in flux? Fixing this should be part of > the strategy. Because link state changes on the nearby upstream path are satisfied by renumbering instead of rerouting. When I said "dynamic," I really really meant it. Actually, that's not strictly true. You'd reroute for a few minutes, long enough to be sure the state change wasn't ephemeral. Then you'd renumber and on completion discontinue the exception route. That's because renumbering looks like a distance-vector protocol; I can't think of a way to describe it as a faster link-state protocol. Regards, Bill Herrin -- William D. Herrin ................ [EMAIL PROTECTED] [EMAIL PROTECTED] 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004 _______________________________________________ rrg mailing list [email protected] https://www.irtf.org/mailman/listinfo/rrg
