[afnog] Private AS in Internet GW

[Bouchaib Adimi]

I talk about the both cases a) and b)
I have :
2 IGW with public AS and eBGP sessions  to  ISP s
and
2 PE router connected   to MPLS BB with private AS

the question is to make these to PE as  additionnal POI (IGW )   suporting
also additionnal eBGP with  other ISP  in multihomed architecture


Thanks





                                                                           
             Mark Tinka                                                    
             <mtinka at globaltra                                             
             nsit.net>                                                   A 
                                       Bouchaib Adimi                      
             19/06/2008 16:12          <bouchaib.adimi at meditel.ma>         
                                                                        cc 
                                       afnog at afnog.org                     
             Veuillez répondre                                       Objet 
                     à                 Re: [afnog] Private AS in Internet  
             mtinka at globaltran         GW                                  
                  sit.net                                                  
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




On Thursday 19 June 2008, Bouchaib Adimi wrote:

> It is possible to configure globally  a private AS  in
> the  internet Gateways and to configure eBGP session with
> other ISP using public AS in multihomed architectue  ?
> knowing  that we have  IBGP running  betwen all IGW .

Not sure I understand...

Are you asking whether:

a) it's possible for a router to run multiple ASN's, where
   one talks to public ASN's and another talks to private
   ASN's (local-as feature, perhaps?)?

or

b) it's possible to have a BGP configuration that supports
   regular eBGP sessions to other ISP's using public ASN's
   as well as eBGP sessions with MPLS/VPN customers using
   private ASN's?

> and
> 1 Internet GW is running also a private IBGP  for VPn
> MPLS
> this mean that an IGW is acting also as  a PE router

A single router could be a collapsed P/PE device, in the
context of L3VPN's, so that's no problem.

Mark.
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