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Re: single AS versus multi AS MPLS VPN network

  • From: "Alok Dube" <alokdube1978@rediffmail.com>
  • Date: 28 Aug 2003 09:35:31 -0000
  • Cc: mpls-ops@mplsrc.com
  • Resent-Date: Thu, 28 Aug 2003 06:56:47 -0400
  • To: "Sunil Surendar" <sundeep46@yahoo.com>

hi Sunil,

does each PE peer via mpBGP to remote PE or to the ASBR?

-rgds
Alok

On Thu, 28 Aug 2003 Sunil Surendar wrote :
>Hi,
>
>I plan to have the following MPLS set up in our lab, it is a 
>basic
>interAS MPLS VPN set up, ip routing and MPLS seems to be working 
> from PE to
>PE but when I ping from CE to CE or ping vrf from PE to PE, it 
>fails,
>mpls debug messages enabled in all routers for traceroute vrf (PE 
>to PE)
>indicate that packet flow is ok to the remote PE & the final 
>label that
>the packet gets transferred to is the one that is associated with 
>the
>remote VPN route but ip lookup to reach the destination PE-CE 
>network
>seems to fail, the P router in the remote end indicates that host 
>is
>unreachable since TTL exceeded.
>
>                    AS 100
>AS200
>
  CE1 --- 
PE1---P-----ASBR1------ASBR2--------P---------PE2----------CE2
      fe     fe  atm OC3    POS       atm oc12    fe            
fe


>I am using next-hop-self in the ASBRs and redistributing RIP 
>routes
>into mBGP in the PEs and redistributing BGP routes.
>into RIP on both PEs (PE-CE).
>
>Any help is appreciated,
>
>
>
>
>---------------------------------
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