Re: OSPF SHAM-LINK

Hi,

As Joe said it does not seem like a domain id problem, if it was then you
would be getting the routes as O E2 external.

Ahmed.

On Tue, Mar 30, 2010 at 10:22 AM, <ccie_ka_at_gmx.de> wrote:

> Ahmed,
>
> please can you explain how do you add a domain ID ?
> Because I searched the config guide for sham-link, but doesn't found
> anything
>
>
> -------- Original-Nachricht --------
> > Datum: Tue, 30 Mar 2010 09:57:43 +0500
> > Von: Ahmed Ejaz <aahmedejaz_at_gmail.com>
> > An: Joe Astorino <jastorino_at_ipexpert.com>
> > CC: Abiola Jewoola <biola_y2k_at_yahoo.com>, ccielab_at_groupstudy.com
> > Betreff: Re: OSPF SHAM-LINK
>
> > I guess the ospf process which you are redistributing into bgp requires a
> > domain id, that is the reason it is treating it as an IA route. Please
> add
> > a
> > domain id on both the sides and the routes should come up as O routes
> then
> > you can modify the cost to not prefer the sham link.
> >
> > HTH
> > Ahmed
> >
> > On Tue, Mar 30, 2010 at 7:43 AM, Joe Astorino
> > <jastorino_at_ipexpert.com>wrote:
> >
> > > OSPF routes coming over the sham-link should be regular O routes
> > > (intra-area) and thus should be preferred over O IA routes...post your
> > > configurations something does not seem right about that.
> > >
> > >
> > >
> > > On Mon, Mar 29, 2010 at 10:35 PM, Abiola Jewoola <biola_y2k_at_yahoo.com>
> > > wrote:
> > > > Hello G.S
> > > >
> > > > How can i make ospf prefer to forward route routes via ospf
> > sham-link.
> > > The
> > > > sham link has has a cost of 10 and the routes are coming as IA routes
> > > across
> > > > the MPLS backbone
> > > >
> > > > The router is preferring the backdoor link even when i have increased
> > the
> > > cost
> > > > as high as 65000. The routes are also advertised as IA routes.
> > > >
> > > > Regards,
> > > > Abiola
> > > >
> > > >
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> > >
> > >
> > >
> > > --
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> > >
> > >
> > >
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Received on Tue Mar 30 2010 - 10:23:56 ART