Re: OSPF cost through MPLS VPN

if the backdoor link cost is same as the MPLS VPN backbone
It Will choose intra-area routes even after manipulating the cost

other option which i tried during labbing was change the cost of backdoor
link on physical interface

Using a Sham link: you backdoor link cost should be less than the MPLS VPN
backbone to choose backbone for traffic

prakash kalsaria
http://prakashkalsaria.wordpress.com

On Mon, May 24, 2010 at 4:27 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:

> ... which is the reason for sham links to begin with!
>
> I guess you might call it a non area 0 virtual link.
>
> -Carlos
>
> Adrian Brayton @ 23/05/2010 19:03 -0300 dixit:
> > I would like to add to Joe's response... No matter what you do with cost
> or manipulation of metrics, OSPF will always choose intra-area route's over
> inter-area routes.
> >
> >
> > On May 23, 2010, at 5:46 PM, Joe Astorino wrote:
> >
> >> Yes, you could do a sham-link and set the cost on the sham-link when you
> configure it. You could also set the OSPF cost during redistribution from
> BGP --> OSPF.
> >>
> >>
> >>
> >> Regards,
> >> Joe Astorino, CCIE #24347
> >>
> >> "He not busy being born is busy dying" -- Dylan
> >>
> >> ----- Original Message -----
> >> From: "Hussam EL Kebbi" <hussamkibbi_at_hotmail.com>
> >> To: ccielab_at_groupstudy.com
> >> Sent: Sunday, May 23, 2010 5:39:07 PM GMT -05:00 US/Canada Eastern
> >> Subject: OSPF cost through MPLS VPN
> >>
> >> Hi Experts,
> >> What are the ways to change OSPF cost through mplsvpn (between PEs)I
> guess
> >> sham link is one way?
> >>
> >> Thanks,
> >>
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> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
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Received on Mon May 24 2010 - 09:17:06 ART