nanog mailing list archives
Re: Building a BGP test network
From: Ariel Biener <ariel () fireball tau ac il>
Date: Wed, 9 Jul 2008 20:36:11 +0300
On Wednesday 09 July 2008 18:26, Howard Jones wrote:
I've done this in the (distant) past by taking the output from 'show ip route' from one of our live transit routers, and awking it into a load of 'route add' commands on a spare FreeBSD box. Run quagga on that, and hook it into your test network. I needed to change some sysctl parameters to allow for that many routes though - and that was when it was 90K routes, not 230K :-)
I might be missing something, but this is not emulating the real thing, since all the AS paths are gone, aren't they ? All the natural BGP environment is also gone, since show ip route will only show the route that ended up in the RIB, while show ip bgp might show a few paths to a route, with one of them being best. I have been pondering over this issue for some time now (not too much time to invest on it), since I wanted to created a duplicate model of our production network in a test environment, not connected to any outside network (thus cannot peer, same problem as described here). --Ariel -- Ariel Biener e-mail: ariel () post tau ac il PGP: http://www.tau.ac.il/~ariel/pgp.html
Current thread:
- Building a BGP test network Jason Lewis (Jul 09)
- Re: Building a BGP test network Beavis (Jul 09)
- Re: Building a BGP test network Jason Lewis (Jul 09)
- RE: Building a BGP test network Borchers, Mark M. (Jul 09)
- Re: Building a BGP test network Howard Jones (Jul 09)
- Re: Building a BGP test network Ariel Biener (Jul 09)
- Re: Building a BGP test network William Waites (Jul 09)
- Re: Building a BGP test network Richard Mortier (Jul 11)
- Re: Building a BGP test network Ariel Biener (Jul 09)
- Re: Building a BGP test network Charles N Wyble (Jul 09)
- <Possible follow-ups>
- Re: Building a BGP test network Fouant, Stefan (Jul 09)