You are correct, but approaching 10,000 flat routes will cause the IGPs to show their limits. (In case you were thinking that was an outrageous number, there are IPv4 networks with that many subnets, and they can only exist through aggregation.) The point is that we need to allow for managed aggregation in the scheme, but that does not preclude automatomation for a subset of the SL space.
Tony > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of Andrew White > Sent: Wednesday, December 04, 2002 5:00 PM > To: [EMAIL PROTECTED] > Subject: Re: EUI-48 globally unique site-locals (GUSL) > > > Tony Hain wrote: > > > > The problem I do have with it is the > > lack of aggregation in the IGP that would result. While > flat routing > > is not a problem for a small network, it wouldn't work when the > > network reached any significant size. > > Define 'significant'. According to Brian Carpenter (28/11/2002): > > > > The question is, at what scale does route aggregation > > begin to matter? The sort of VPN-based or merger-and- acquisition > > based networks we are talking about don't seem to be anywhere near > > that scale; we know that flat routing of thousands of prefixes is > > possible. So it may be philosophically unsettling, but I > don't think > > it is operationally unsettling. > > I freely admit my experience with routing tables is > insufficient to know where this cut-off is, but the gist I've > been getting is 'hundreds - easy', 'thousands - doable'. > > Am I hearing wrong? > > -- > Andrew White [EMAIL PROTECTED] > -------------------------------------------------------------------- > 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] > -------------------------------------------------------------------- > -------------------------------------------------------------------- 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] --------------------------------------------------------------------
