Basic MPLS L3VPN architecture
A basic MPLS L3VPN architecture has the following types of devices:
Customer edge device—A CE device resides on a customer network and has one or more interfaces directly connected to a service provider network. It does not support MPLS.
Provider edge device—A PE device resides at the edge of a service provider network and is connected to one or more CEs. All MPLS VPN services are processed on PEs.
Provider device—A P device is a core device on a service provider network. It is not directly connected to any CEs. A P device has only basic MPLS forwarding capability and does not handle VPN routing information.
Figure 76: Basic MPLS L3VPN architecture
