Re: OSPF SHAM-LINK

Currently I don't have access to my lab but I also mean the domain ID is the same as the router ID if this is hardcoded on both sides

-------- Original-Nachricht --------
> Datum: Tue, 30 Mar 2010 10:16:34 +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

> Thats correct Joe, thanks for the correction.
>
> On Tue, Mar 30, 2010 at 10:13 AM, Joe Astorino
> <jastorino_at_ipexpert.com>wrote:
>
> > I believe if you are using the same OSPF process ID on both sides, you
> > should get O routes. I am pretty sure the domain-ID by default is
> > taken from the process ID number you are running. If they were
> > different domain IDs though, you should be seeing O E2 routes so that
> > is why I say it is a bit strange.
> >
> >
> >
> > On Tue, Mar 30, 2010 at 12:57 AM, Ahmed Ejaz <aahmedejaz_at_gmail.com>
> wrote:
> > > 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
> > >> >
> > >> >
> > >> > Blogs and organic groups at http://www.ccie.net
> > >> >
> > >> >
> > _______________________________________________________________________
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> > >> >
> > >> >
> > >> >
> > >> >
> > >> >
> > >> >
> > >>
> > >>
> > >>
> > >> --
> > >> Regards,
> > >>
> > >>
> > >>
> > >> Joe Astorino - CCIE #24347
> > >> Sr. Technical Instructor - IPexpert
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> > >>
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> > >
> > >
> >
> >
> >
> > --
> > Regards,
> >
> >
> >
> > Joe Astorino - CCIE #24347
> > Sr. Technical Instructor - IPexpert
> > Mailto: jastorino_at_ipexpert.com
> > Telephone: +1.810.326.1444
> > Live Assistance, Please visit: www.ipexpert.com/chat
> > eFax: +1.810.454.0130
> >
> > IPexpert is a premier provider of Self-Study Workbooks, Video on
> > Demand, Audio Tools, Online Hardware Rental and Classroom Training for
> > the Cisco CCIE (R&S, Voice, Security & Service Provider)
> > certification(s) with training locations throughout the United States,
> > Europe, South Asia and Australia. Be sure to visit our online
> > communities at www.ipexpert.com/communities and our public website at
> > www.ipexpert.com
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
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