Re: OSPF in MPLS vpn

Carlos,

Not sure if I understand the topology correctly, but I see the situation as
PE2 ignoring the inter-area prefixes originated by CE2 and not
redistributing it into MP-BGP. This is a normal behavior, since PE devices
assume to be connected to the OSPF super-backbone, and therefore ignore the
inter-area prefixes for routing, though they still flood the corresponding
type-3 LSAs over the sham-link. You may resolve this issue by configuring a
virtual-link connecting CE2 and PE2 - this will connect area 0 and the
superbackbone.

HTH

-- 
Petr Lapukhov, petr_at_INE.com
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2011/4/8 Carlos G Mendioroz <tron_at_huapi.ba.ar>
> Hi,
> I've run into a situation that is giving me a hard time :(
>
> CE1 - PE1 ... PE2 - CE2 - R
>
> CE-PE links are using OSPF area 1, CE2 - R is OSPF area 0.
> To get area 1 routes as intra area, a sham link is set between PE1 and PE2.
>
> Now here's the catch. R routes get to CE2 (an ABR) and type 3 LSRs do get
> to CE1 over the sham link. So CE1 sees R routes.
> But PE2 and PE1 do not.
>
> I fail to understand why... wouldn't mind a litle help :)
>
>
> --
> Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
>
>
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