HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 277

Configuring MCE The term "router" in this document refers to both routers and Layer 3 switches. This chapter covers MCE related configuration. For information about routing protocols, see Layer 3-IP Services Configuration Guide. MCE overview MPLS L3VPN overview MPLS L3VPN is a type of PE-based L3VPN technology for service provider VPN solutions. It uses BGP to advertise VPN routes and uses MPLS to forward VPN packets on service provider backbones. MPLS L3VPN provides flexible networking modes, excellent scalability, and convenient support for MPLS QoS and MPLS TE. The MPLS L3VPN model consists of the following types of devices: • Customer edge (CE) device-A CE resides on a customer network and has one or more interfaces directly connected with service provider networks. It can be a router, a switch, or a host. It can neither "sense" the existence of any VPN nor does it need to support MPLS. • Provider edge (PE) device-A PE resides on a service provider network and connects one or more CEs to the network. On an MPLS network, all VPN processing occurs on the PEs. • Provider (P) device-A P device is a core device on a service provider network. It is not directly connected with any CE. It only needs to be equipped with basic MPLS forwarding capability. Figure 85 Network diagram for MPLS L3VPN model CEs and PEs mark the boundary between the service providers and the customers. 267