Brian, > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Brian E Carpenter > Sent: Tuesday, September 29, 2009 1:05 PM > To: Dong Zhang > Cc: [email protected]; Templin, Fred L; [email protected]; > [email protected] > Subject: [BEHAVE] What is a site? [Re: [Softwires]Some Thought about > theAutomatic Tunnel Address > > On 2009-09-29 19:28, Dong Zhang wrote: > ... > >> Part of the problem with site-local was that the scope was ambiguous. > > Agree. > >> the term is not rooted in a discrete object with a position in the > >> topology, contrast with autonomous system or prefix. > > Just because of this point, it would better confirm the scope of > > "site" when talking about it in case misunderstanding and confusion. > > It may be impossible. Actually I'd be very interested to hear any comments > about the approach to defining address scope that we have taken in > draft-carpenter-behave-referral-object. Maybe what we call a "limited scope" > is a site? This should be discussed at a BOF in Hiroshima. Comments on the > grobj mailing list please: > [email protected] > https://www.ietf.org/mailman/listinfo/grobj .
I'm not sure it is impossible to define "site"; a site is just a logical or physical partition (bounded by site border routers) within a connected routing region. As long as the nodes within the site remain associated with their site border routers, they are still within the same site. Back to site-locals, my understanding was that RFC4193 ULAs were introduced in part to accommodate sites that partition or merge. As long as each site border router configures and advertises a its own ULA prefix, there would be no ambiguity regarding the scope over which the ULA applies. Fred [email protected] > Brian > > _______________________________________________ > Behave mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/behave _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
