H3C Technologies H3C SecPath F1000-E - Manual (Page 64)

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L3VPN Configuration
This chapter includes these sections:
• L3VPN Overview
• L3VPN Configuration Task List
• Displaying and Maintaining L3VPN
• L3VPN Configuration Example
NOTE:
The term router in this document refers to network routing devices running a routing protocol.
L3VPN Overview
This section covers these topics:
• Introduction to L3VPN
• L3VPN Concepts
• L3VPN Networking Schemes
• OSPF VPN Extension
Introduction to L3VPN
L3VPN provides flexible networking modes, excellent scalability, and convenient support for MPLS QoS
and MPLS TE. Hence, it is widely used.
The L3VPN model consists of three kinds of devices:
• Customer edge device (CE): 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 neither
can "sense" the existence of any VPN nor needs to support MPLS.
• Provider edge device (PE): A PE resides on a service provider network and connects one or more
CEs to the network.
• Provider (P) device: A P device is a backbone device on a service provider network. It is not directly
connected with any CE.