[j-nsp] Issue with MPLS VPN when using mixed LDP and RSVP Backbone !

Diogo Montagner diogo.montagner at gmail.com
Wed Jul 11 11:56:02 EDT 2012


Hi,

I suggest some steps below:

- verify the status of the routes in PE4. Are they being received by
the BGP neighbor ? Check the protocol NH status.

- you need to have an LSP between the PE1 and your RR. Same for PE4
and RR. But I am assuming this is fine because you see the routes
being advertised to PE4 from PE2.

- on PE4, you need to have a LDP route for PE1. I think this may be
your issue and this is why I suggested to check with the ping mpls ldp
command.

Thanks

On 7/11/12, vaibhava varma <svaibhava at gmail.com> wrote:
> Hi Diogo
>
> They are not hidden and have already verified the route-target.Its
> correctly configured. Any other pointer ?
>
> Also while using RR do we reallly need the Loopback IP of RR used for
> BGP peering to be present in the inet.3 table of PE coz the RR just
> reflects the route and does not modifies the NH. All we should need is
> the reachability of the remote PE Loopback IP used for BGP Peering to
> be in the inet.3 at the Local PE. Is that correct ?
>
> Thanks much for your help on this issue.
>
> Regards
> Varma
>
> On Wed, Jul 11, 2012 at 9:07 PM, Diogo Montagner
> <diogo.montagner at gmail.com> wrote:
>> You need check the status of the routes in PE4. If they are hidden it
>> may be a LDP issue. If there is no hidden route then your problem may
>> be wrong route-target selection.
>>
>> Thanks
>>
>> On 7/11/12, vaibhava varma <svaibhava at gmail.com> wrote:
>>> Hi Diogo
>>>
>>> I have not checked that yet but what I did check was that PE2/RR is
>>> advertising the route via BGP to PE4 and PE4 is not accepting it.
>>> Right now I do not have access to the setup.
>>>
>>> Please suggest where can be the issue and what more to check apart
>>> from the one you mentioned and I will check and revert in sometime.
>>>
>>> Regards
>>> Varma
>>>
>>> On Wed, Jul 11, 2012 at 8:31 PM, Diogo Montagner
>>> <diogo.montagner at gmail.com> wrote:
>>>> What happens if you do a ping mpls ldp from PE4-lo0 to PE1-lo0 ?
>>>>
>>>> On 7/11/12, vaibhava varma <svaibhava at gmail.com> wrote:
>>>>> Dear All
>>>>>
>>>>> I was testing a setup whereby I am using mix of LDP and RSVP in the
>>>>> backbone for transporting MPLS VPN Traffic. The setup is something as
>>>>> below:
>>>>>
>>>>> CE1--PE1------PE2/RR-------PE3----PE4------CE2
>>>>>
>>>>> Now we have a limitation that we can only run LDP between PE4 and PE3.
>>>>> From PE3 to PE2/RR we have RSVP. From PE3 to PE1 we have LDP Tunneling
>>>>> over RSVP.
>>>>>
>>>>> Now the routes of CE1 are not getting installed into the VRF Table on
>>>>> PE4. When checked the inet.3 table I do not see the route for PE2/RR
>>>>> Loopback but only PE1 and PE3.
>>>>> I tried to add a default static into inet.3 or importing the inet.0
>>>>> rib to inet.3 on PE4 but still am not seeing routes.
>>>>>
>>>>> I think the issue is that the BGP Next Hop is not in inet.3 for
>>>>> PE2/RR. How can I achieve to make this setup working apart from
>>>>> running LDP Tunneling over RSVP between PE4& PE2/RR or between PE3 &
>>>>> PE2/RR.
>>>>>
>>>>> --
>>>>> Regards
>>>>> Vaibhava Varma
>>>>> _______________________________________________
>>>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>>>>
>>>>
>>>> --
>>>> Sent from my mobile device
>>>>
>>>> ./diogo -montagner
>>>> JNCIE-M 0x41A
>>>
>>>
>>>
>>> --
>>> Regards
>>> Vaibhava Varma
>>>
>>
>> --
>> Sent from my mobile device
>>
>> ./diogo -montagner
>> JNCIE-M 0x41A
>
>
>
> --
> Regards
> Vaibhava Varma
>

-- 
Sent from my mobile device

./diogo -montagner
JNCIE-M 0x41A


More information about the juniper-nsp mailing list