Configuring Mce; Mce Overview; Mpls L3Vpn Overview - H3C S5500-HI Series Mpls Configuration Manual

Configuring MCE

The term "router" in this document refers to both routers and Layer 3 switches.
The term "interface" in this document refers to Layer 3 interfaces that include VLAN interfaces, Layer 3
Ethernet interfaces, and Layer 3 aggregate interfaces. You can set an Ethernet port as a Layer 3 Ethernet
interface by using the port link-mode route command (see Layer 2—LAN Switching Configuration
Guide).
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
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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
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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.
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