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Re: BGP Confederation config problem...
: Andy McConnell <[email protected]> wrote as below : at Mon, 9 Mar 1998 08:57:29 -0800 (PST) ; : :| But it isn't considered IBGP within the confederation. The router makes a :| distinction between routes learned from an IBGP peer (internal) and a :| confederation EBGP peer (confederation-external) and will ALWAYS pick the :| external route, all other items above it in the selection list being :| equal. :| :| I've eliminated trying to increase the AS path, since it's ignored within :| the confederation. :| :| Setting the MED is the crux of the problem - I can set it "statically", :| but the idea is to make the whole confederation dynamic. I want the :| confederation to work like a true "internet". (Yes, I'm asking for the :| world...) :| Andy, I agree with you. I run bgp-confederation in my network with IGP in each subAS independant. In this case it is helpful if ASpath length within confederation is considered as true eBGP. Now I set MED statically. Thank you for information of "set metric +/-[VALUE]" statement, I'll try it. Nowaday, iBGP Reflecter is preferred to BGP Confederation. When we use single IGP within AS, reflecter and confederation make little difference. But confederation enable us to divide IGP into sub-ASes. It may make sense a lot. And in such a network configuration, it is natural that AS path length consideration while route selection is required. How do you like this idea?? Is it IDR topic?? :| -Andy :| ----- MAEMURA Akinori Network Engineer, C&C Internet Service mesh, NEC Corporation, JAPAN [email protected], [email protected]