nanog mailing list archives
Re: BGP and aggregation
From: Ralph Doncaster <ralph () istop com>
Date: Sat, 11 May 2002 18:15:23 -0400 (EDT)
* BGP is an EGP, not an IGP * You might want to check out OSPF if you think your net will grow
Using iBGP between the 2 cities right now. May try OSPF later.
* You don't want your IGP influencing your EGP. Flap, flap. * Redistributing EGP into IGP isn't exactly good, either. Are the upstreams the same in each city? Why not announce the aggregate /20 normally, and set NO_REDISTRIBUTE and use MEDs on the /21s? You're paying for transit, so MEDs are fair game.
Well, the assumption is that most of the time the circuit between the 2 cities will be up, so flapping should be rare. The transit is from different providers, so only announcing the /20 won't do the trick. -Ralph
Current thread:
- Re: BGP and aggregation, (continued)
- Re: BGP and aggregation Ralph Doncaster (May 12)
- Re: BGP and aggregation Andy Walden (May 12)
- Re: BGP and aggregation E.B. Dreger (May 12)
- Re: BGP and aggregation Stephen Griffin (May 13)
- Re: BGP and aggregation Ralph Doncaster (May 13)
- Re: BGP and aggregation Scott Granados (May 13)
- Re: BGP and aggregation Ralph Doncaster (May 11)
- Re: BGP and aggregation Scott Granados (May 12)
- Re: BGP and aggregation Ralph Doncaster (May 11)
- Re: BGP and aggregation Stephen Griffin (May 12)
- Re: BGP and aggregation Stephen J. Wilcox (May 12)
- Re: BGP and aggregation Scott Granados (May 12)
- Re: BGP and aggregation E.B. Dreger (May 12)
- Re: BGP and aggregation Richard A Steenbergen (May 12)
- Re: BGP and aggregation Forrest W. Christian (May 12)
- Re: BGP and aggregation Ralph Doncaster (May 12)
- Re: BGP and aggregation E.B. Dreger (May 12)