Re: VPNV4 Next Hop path manipulation querry

There is no intra-AS vpnv4 peering?

On Tue, Jul 21, 2009 at 1:28 PM, Con Spathas<ccie19226_at_googlemail.com> wrote:
> Gday Mahesh,
>
> I've been toying with your question this morning.
>
> This might break your first requirement, however on R4 I manipulated
> the weight for R2 loopback learned from R2 so that it prefers the
> R4-R2 path instead of the R4-R3-R1-R2 path. R4 is still honoring
> getting to AS12 via R3 for everything except the loopback for R2. I
> figure by using weight - this is locally significant to R4 and won't
> influence the rest of AS34.
>
> That's where I'm not sure if doing this on R4 breaks your first
> requirement or actually addresses your second requirement and still
> satisfies the first requirement
>
> I'd be interested in reading other people's thoughts on this.
>
> Cheers.
> Con.
>
> On Tue, Jul 21, 2009 at 8:11 AM, mahesh s<maheshsachitanandan_at_gmail.com> wrote:
>> Hi,
>>
>> I am looking for a solution for VPV4 route path control
>>
>> Scenario,
>>
>> R1- -(AS12) - - -R2
>> | |
>> | |
>> | |
>> R3- --(AS34) - - R4
>>
>>
>> R1- R3 & R2- R4 ( IPV4 EBGP Peering on the the directly connected link)
>>
>> R1-R2 & R3-R4 ( IPV4 BGP peering is on the Loopback)
>>
>>
>> Inter AS, VPNV4 peering is between the loopback ( R1-R3 & R2-R4) and not on
>> the directly connected link.
>>
>> I am able to achieve , as well as able to bring up the LSP this using IPV4
>> BGP + Send lables
>> ----------
>> *Requirement*
>>
>> 1. Primary path for the IPV4 BGP traffic flow between from AS 34 to AS12
>> through R3
>>
>> 2. VPNV4 Customer Site is on R2 and any customer site in AS 34 to use R4
>> as primary exit
>> ----------
>> Unable to find a way to achieve the requirement 2 as the underlying IPV4 BGP
>> ( Carrying the transport label uses R3 as primary exit)
>>
>> Any suggestions VPNV4 backdoor or changing/manipulating the path for a VPNV4
>> neighbor
>>
>> Thanks for your help
>>
>> Mahesh
>>
>>
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Received on Tue Jul 21 2009 - 13:46:03 ART