>I am not quite sure what you mean... > >Assume that I have a router with 4 interfaces (A, B, C and D) in two sites (S1 & S2), >with >interfaces A & B in S1, and interfaces C & D in site 2, all on an OSPF network. How >many >instances of OSPF would I need to run? > >Your message seems to indicate that I would need to run two -- one for S1 and one for >S2. >But, how would those two instance cooperate to calculate the global routing >information for >all four interfaces? > >Alternatively, I could run three copies -- one for S1, one for S2 and one for the >global routes. >But, how would that work? I'd end up with two copies of OSPF running over each >interface. >Would they have the same, or different peers?
sorry, let me back up. i guess you need to either: - run 3 instances of OSPF daemons, one for S1, one for S2, and one for global. - run 1 instance of OSPF daemon, which is aware of site border. (still, there's no need for protocol modification) >> NEC IX router is the only implementation supporting this, as far as >> i know (i'm a bit embarrassed, KAME doesn't handle this - yet). >Does the NEC implementation use multi-instance routing protocols? Do you know anyone >on this team? Could we get them to describe how they handle the site border router >case >in detail? they should be on the list so they should be able to comment. itojun -------------------------------------------------------------------- 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] --------------------------------------------------------------------