From: Petr Lapukhov (petr@internetworkexpert.com)
Date: Wed Jun 21 2006 - 12:55:16 ART
Sami,
AFAIR back in days BGP did not copy IGP metric to MED automatically.
(Victor mentioned that recently).
You were required to use route-map with "set metric-type internal"
to make it work.
Nowdyas (I don't know what version of IOS since) BGP does that
automatically.
I don't know of a way to disable that behavior, but I dont think that's
really necessary. I just know that making aggregate removes MED attribute,
so
that may help sometimes ;)
After all, MED is really a "weak" attribute (follows origin in bestpath
selection
process). Also you can easily change it to any value, if you need to :)
HTH
2006/6/21, Sami <sy1977@gmail.com>:
>
> Group,
>
> I have three routers R1 ,R2 and R4
> R1 and R2 are in AS 200 and R4 is in AS100 , R1 ,R2 both have neighbour
> relation with R4.
>
> I inject three routes from R1 and R2 using Network command , these routes
> are received by R4 but R2 is copying EIGRP metric in BGP but R1 is not
> doing
> it. Why R2 is sedning EIGRP metric in BGP update
>
> * 129.1.3.0/25 129.1.124.2 *2172416 *
> 0 200 i
>
> Is there any way we can disable not to copy IGP metrics in EBGP updates.
>
> Thanks
>
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-- Petr Lapukhov, CCIE #16379 petr@internetworkexpert.comInternetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Outside US: 775-826-4344
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