![]() ![]() In our lab, OSPF is already in operation as the provider network IGP. an IGP (typically) is run between each CE router and its upstream PE router.an IGP running among all P and PE routers is used to support LDP and BGP adjacencies within the provider network.CE (customer edge) routers exist at the edge of a customer site they have no VPN awareness. ![]() PE (provider edge) routers connect to customer sites and form the edge of a VPN.P (provider) routers are ISP core routers which don't connect to customer routers and typically run only MPLS.If you're unfamiliar with the concepts of MPLS switching and VRFs on Cisco IOS, you may want to check out a few of my past articles before continuing: Today we're going to look at the configuration required to create a basic MPLS VPN servicing two customers, each with a presence at two physical sites. ![]()
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