[c-nsp] BGP add-path with MPBGP/VPNv4

Andrew K. andrew at vianet.ca
Thu Dec 5 15:36:14 EST 2013


I do, but as Arie has pointed out I can simply trick the RR into sending 
both routes to the PE.

PIC sounds great but we are using older hardware, I am not certain if 
these features are support correctly.

On 12/5/2013 2:55 PM, Pshem Kowalczyk wrote:
> Hi,
>
> Do you use the same RD for the default route on both of those originating PEs?
>
> kind regards
> Pshem
>
>
> On 6 December 2013 07:09, Andrew K.<andrew at vianet.ca>  wrote:
>> I have a VRF configuration with MP-BGP/MPLS.
>>
>> In vrf A there are two default gateways being advertised to the
>> route-reflectors.
>>
>> Half of the PE devices in VRF A need to send traffic out one gateway and the
>> other half out the other, but the route-reflectors are only sending one best
>> route to the PE.
>>
>> Digging up info on add-path, it appears to have very limited support, I can
>> not find support for it using the feature set navigator for anything other
>> then the ASR1000, 7600, 3900 and IOS XR.
>>
>> Is this feature supported by the 7200?
>>
>> Can it be used in a VPNv4/VRF environment?
>>
>> Should I just be doing BGP Multipath Load Sharing instead and use a
>> route-map to set the weight of the default route for each PE device?
>>
>> Thanks in advance for your time.
>> Andrew.
>>
>>
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