From: Ryan (ryan95842@gmail.com)
Date: Wed Jun 13 2007 - 23:51:20 ART
Your HQ router should exchange routes with the Telcom via OSPF. Same with
the Branches. The Telcom will pass the routes between the two sites via
MP-BGP.
Your HQ is a CE router, you'll exchange routes via OSPF with the Telecom's
PE router
CE PE
(HQ-Rtr)/ospf --------{Telecom/ospf}
Same with your Branch office
PE CE
{Telecom/ospf} ----------(Branch-rtr/ospf}
The Telecom then uses MP-BGP to exchange the routes between their PE
routers. If all your sites are in area 0, you see the remote sites routes as
inter-area routes 'O IA' which will seem odd. The Telecom can configure what
is called a sham-link to keep the routes as intra-area, but you'll have to
ask them.
HTH
-Ryan
On 6/13/07, aaqibprince@rediffmail.com <aaqibprince@rediffmail.com> wrote:
>
> Dear GS,
>
> Two building HQ & Branch connecting via OSPF network passed through
> telecom provider e1 line.
>
> Now we are planning to move 12MB(ATM-OC3) as recomended by telcom they are
> using BGP-MPLS network.
>
> NO BGP configured in our internal network except telecom BGP interface are
> configured.
>
> Please recomend how to route my "HQ-OSPF network" fly over "BGP-Telecom"
> to "Branch OSPF network".
>
> (HQ-Rtr)/ospf --------{Telecom/BGP} ----------(Branch-rtr/OSPF}
>
> Tnx & Rgds,
> AaqibPrince Jr.
>
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