Help on MPLS Design

From: Olugbenga Adanlawo (gbengaadan@hotmail.com)
Date: Mon Jul 07 2008 - 11:52:09 ART


Dear Experts,

I am working on an MPLS core design for an ISP out here in Africa. I have two
types of customers that require internet access via the MPLS core.

1. MPLS VPN clients that connect via a 3800 CE router (PE - CE routing
protocol is OSPF)
2. Broadband clients that terminate on a Cisco 7609 (with Cisco MWAM module
configured as PDSN)

Below is a schematic topology of the MPLS design

Broadband _____________
Client -------------> | PDSN (7609) | Global routing
_________________________________________
                                   |____________|
-------------------------------->|
|
                                                                             
               |
|
                                                                             
               |
|
                                                                             
               | MPLS CLOUD | -------> INTERNET (VPN or GLOBAL)
                                _____________
| |
MPLS | Cisco 3800 | VRF VPN_A |
|
Client -----------------> | CE Router |
---------------------------------->|_________________________________________
|
                                |____________|

My Challenge however is how to configure the internet link whether in a VPN or
global routing table to give access for both broadband and MPLS clients.

Thank you for your advice

Gbenga



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