Re: Capability VRF Lite

> Therefore CE1 can see these routes in ospf database with down bit set
> and never installs them in routing table.

I don't think this is the way it works. The down bit is used to prevent
loops in the mpls backbone. The CE sould use those routes w/o problem.

-Carlos

Muzammil Malick @ 31/5/2010 14:42 -0300 dixit:
> So I am running VRF lite on CE1 and peering via ospf to PE1.
> When PE1 redistributes bgp routes from remote site into OSPF
> and propagates them to CE1 they are sent as summary LSAs with the Down
> bit set.
> Therefore CE1 can see these routes in ospf database with down bit set
> and never installs them in routing table.
> However by setting capability vrf-lite on PE's ospf vrf process, the PE
> now sends route as external LSAs and to my understanding these LSAs are
> excepted from the Down bit check
> and are sent to CE1 as normal. CE1 now sees these as external LSAs and
> installs them in its routing table (VRF).
>
>
>
> On 31 May 2010 18:33, Carlos G Mendioroz <tron_at_huapi.ba.ar
> <mailto:tron_at_huapi.ba.ar>> wrote:
>
> Would you please tell me what "problem" is that you solved ?
> -Carlos
>
> Muzammil Malick @ 31/5/2010 9:21 -0300 dixit:
>
> Hi
>
> I have been studying the use of the capability vrf-lite command
> and I
> was wondering whether there is any difference/issue
> when configuring this on the PE or CE.
>
> For example my PE is redistributing BGP into OSPF and sending
> OSPF routes to
> CE with down bit set. So I configured capability vrf-lite
> command on PE and this solved the problem. But I read somewhere that
> this should be configured on the CE.
>
>
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> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
> LW7 EQI Argentina
>
>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net