[c-nsp] Two mpls provider with the same core AS# workaround

[Roger Wiklund]

No Inter-AS L3VPN. Two totally different providers, with no MPLS
connection between, them. Only us in the middle via our HUB site.

On Mon, Sep 20, 2010 at 2:45 PM, Roger Wiklund <copse at xy.org> wrote:
> 1. The providers are running L3VPN in their MPLS. We have CE sites
> that run BGP to the PEs.
>
> 2. We are the customer.
>
> So basically we have 2 providers, in the middle we have our network,
> where we get all the routes from each provider. And we want to
> propagate the routes via BGP between them.
>
> Regards
> Roger
>
> On Mon, Sep 20, 2010 at 2:25 PM, Arie Vayner (avayner)
> <avayner at cisco.com> wrote:
>> Roger,
>>
>> What kind of services these network run (Inter-AS L3VPN)?
>> What kind of service does your network provide in the scheme of all
>> things (are you a transit MPLS provider, the customer etc)?
>>
>> Arie
>>
>> -----Original Message-----
>> From: cisco-nsp-bounces at puck.nether.net
>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Roger Wiklund
>> Sent: Monday, September 20, 2010 12:37
>> To: Cisco-nsp
>> Subject: [c-nsp] Two mpls provider with the same core AS# workaround
>>
>> Hi.
>>
>> Scenario: Two MPLS providers, one major with bulk of the sites. one
>> minor with ~10 sites.
>> Both providers have the same AS# in the core, and I want to exchange
>> routes between these providers (via our network, not directly betweent
>> the providers).
>>
>> to overcome this, I thinking about some different approaches (on the
>> minor MPLS provider side/in our own network)
>>
>> BGP aggregate (in our network)
>> allow-as in (minor MPLS providers network)
>> local-as + allow-as in (minor mpls providers network)
>> remove private as function in IOS 15.1(2)T (can remove private AS even
>> if you have a mix of public and private AS#)
>>
>> Anyone with some experience on this and how this best can be solved?
>>
>> Thanks!
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>