Configuring Mce; Mpls L3Vpn Overview; Basic Mpls L3Vpn Architecture; Mpls L3Vpn Concepts - HP FlexNetwork 10500 Series Configuration Manual

Configuring MCE

This chapter describes MCE configuration.

MPLS L3VPN overview

MPLS L3VPN is a L3VPN technology used to interconnect geographically dispersed VPN sites.
MPLS L3VPN uses BGP to advertise VPN routes and uses MPLS to forward VPN packets over a
service provider backbone.
MPLS L3VPN provides flexible networking modes, excellent scalability, and convenient support for
MPLS QoS and MPLS TE.

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 109 Basic MPLS L3VPN architecture
VPN 1
Site 1
CE
CE
Site 2
VPN 2

MPLS L3VPN concepts

Site
A site has the following features:
•
A site is a group of IP systems with IP connectivity that does not rely on any service provider
networks.
P
PE
P
P
PE
P
PE
421
VPN 2
Site 3
CE
CE
Site 4
VPN 1