Re: OSPF cost through MPLS VPN

Hmmm, I guess you wrote it backwards.
For those that do not have english as the mother tongue, attention to
details seems to be even more important:

Prakash Kalsaria @ 24/05/2010 0:47 -0300 dixit:
> if the backdoor link cost is same as the MPLS VPN backbone
> It Will choose intra-area routes even after manipulating the cost

Cost is not relevant when comparing inter area to intra area.

>
> 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

Backdoor cost should be *more* than the backbone to choose the backbone.

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