From: Miguel Trejo (mike.trejo@gmail.com)
Date: Sat May 17 2008 - 08:48:38 ART
I'll need to take a look into the configuration, but if the requirement
doesn't include keeping the route as E2 you can change to E1 and manipulate
the metrics on the cloud. Also a show ip ospf external for that route should
help.
On Sat, May 17, 2008 at 6:21 AM, Huan Pham <pnhuan@yahoo.com> wrote:
> Hi Suryakant,
>
> I think this is normal behavior. You should not use distance to tweak the
> routing WITHIN a single routing protocol. Distance is used to differentiate
> routes from DIFFERENT routing protocols.
>
> Instead, if you can change metric for those E2 routes from the sources (R2,
> R3), then do it. Alternative is to change the network type
>
> from "point-to-multipoint" to "point-to-multipoint non-broadcast", and
> change the distance for link to R2 & R3.
>
> E.g.
>
> R1#
> int s1/0.1 multipoiont
> ip ospf network point-to-multipoint non-broadcast
> router ospf 1
> neighbor 123.0.0.2 cost 200
> neighbor 123.0.0.3 cost 300
>
> You will then only see one route coming from R2. If this route disapears
> for some reason, you have a backup route via R3.
>
>
> Suryakant P <suryakant.pandian@gmail.com> wrote: Hi,
>
> I have three router R1,R2 and R3.They are configured with ospf
> point-to-multipoint network type.
>
> I get one E2 on R1 from both the R2 and R3 with same metrics.
>
> R1 installs both the routes in the routing table.
>
> My requirement was to have only the route from R2 installed in the routing
> table.
>
> I used to following command under the routing process to achieve it:
>
> distance 109
>
> This command was not taking effect and both the routes were still installed
> in the R1s table.
>
> But as soon as R3 stopped advertising the route,R1 installed the route from
> R2 with a distance of 109.
>
> Is this an expected behavior?Am I missing anything here?
>
> Thanks
> With regards
> Suryakant
>
>
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> --
> Huan Pham
> http://www.cs.jcu.edu.au/~huan <http://www.cs.jcu.edu.au/%7Ehuan>
>
>
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