[c-nsp] Redistributed EIGRP Route Preferred over EBGP?

Chris Mason chris at noodles.org.uk
Mon Apr 18 14:50:09 EDT 2011


> Cisco implements two types of POI as defined in http://tools.ietf.org/html/draft-retana-bgp-custom-decision-01
> ABSOLUTE_VALUE and IGP_COST.
>
> Cost:pre-bestpath means absolute value which is compared as FIRST step even before weight.
>
> BTW:  This document is wrong: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094431.shtml
>
> It was different and correct just couple weeks ago because I was referring to it in some of my slides. This is not true that Cisco implements only IGP_COST!

Thanks, this makes sense and applying it to my BGP peer has fixed the
issue. I initially ruled out cost community as I didn't think it would
take priority over weight.

>> I will give it a try and see if it resolves the problem.
> If you have simple topology you can also configure this: bgp bestpath cost-community ignore

Thanks,
Chris



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