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6 mpls l3vpn configuration, Mpls l3vpn overview, Introduction to mpls l3vpn – H3C Technologies H3C S7500E Series Switches User Manual

Page 226: Mpls l3vpn configuration

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MPLS L3VPN Configuration

When configuring MPLS L3VPN, go to these sections for information you are interested in:

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MPLS L3VPN Overview

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MPLS L3VPN Configuration Task List

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Displaying and Maintaining MPLS L3VPN

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MPLS L3VPN Configuration Examples

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The term router in this document refers to a router in a generic sense or a Layer 3 switch.

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This chapter covers only introduction to and configuration of MPLS L3VPN. For information about
MPLS basics, see MPLS Basics in the MPLS Configuration Guide. For information about BGP,
see BGP Configuration in the Layer 3 – IP Routing Configuration Guide.

MPLS L3VPN Overview

This section covers these topics:

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Introduction to MPLS L3VPN

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MPLS L3VPN Concepts

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MPLS L3VPN Packet Forwarding

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MPLS L3VPN Networking Schemes

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MPLS L3VPN Routing Information Advertisement

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Multi-AS VPN

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Carrier’s Carrier

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Nested VPN

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HoVPN

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OSPF VPN Extension

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BGP AS Number Substitution

Introduction to MPLS L3VPN

MPLS L3VPN is a kind 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. Hence, it is widely used.

The MPLS L3VPN model consists of three kinds of devices: