Hi, Nick, Am 10.12.2013 um 10:43 schrieb Nick Hilliard <n...@foobar.org>: > On 10/12/2013 09:31, Patrick M. Hausen wrote: >> How can I connect them to the iBGP without them carrying full tables? >> Route-maps for the neighbor definitions? Is that really all it takes? >> >> And OTOH again - why would I not want to carry < 100 LSAs in my IGP? > > if it's 100 LSAs, there's not going to be much practical difference between > the two. > > If you want to do it with BGP, I'd recommend setting up a couple of VMs to > act as route reflectors (with e.g. bird or quagga or something) and > creating a very simple BGP community policy: tag your transit prefixes, > your peering prefixes and your internal prefixes using different community > values. Then you can use the route reflectors to control how the prefixes > are distributed around your network. It's a small amount of work, but it's > an approach that scales well in practice.
OK … later :-) I’ll stick to an IGP right now. Our network really is that small. And the choice of OSPF was just a historical accident. In 1996 we started with PA address space from our single upstream, two LANs, a handful of dialin customers and one leased line customer. Everything was configured manually with static routes and the dialin links used a part of the LAN and proxy arp. Livingston Portmaster, anyone? ;-) In 1997 I successfully rolled out OSPF exactly the way I described. Had to connect Cisco and Livingston, so it was essentially the only choice. In 2000/2001 we became LIR, AS16188 and I introduced BGP into the mix. we had a maximum of about 2-300 LSAs in OSPF. I never thought of redesigning the IGP. It just worked. Today internet access as a product is mostly gone, it’s hosting instead, and so the number of prefixes continues to decrease. Kind regards, Patrick -- punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe Tel. 0721 9109 0 * Fax 0721 9109 100 i...@punkt.de http://www.punkt.de Gf: Jürgen Egeling AG Mannheim 108285
signature.asc
Description: Message signed with OpenPGP using GPGMail
_______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
