H3C S9500 Series Operation Manual page 961

Operation Manual – MPLS L3VPN
H3C S9500 Series Routing Switches
# Configure ASBR-PE2: set up EBGP peer relation with ASBR-PE1, and IBGP peer
relation with PE2.
[ASBR-PE2] bgp 200
[ASBR-PE2-bgp] import-route ospf
[ASBR-PE2-bgp] group 10 external
[ASBR-PE2-bgp] peer 10 label-route-capability
[ASBR-PE2-bgp] peer 10 route-policy rtp-ebgp export
[ASBR-PE2-bgp] peer 192.1.1.1 group 10 as-number 100
[ASBR-PE2-bgp] group 20
[ASBR-PE2-bgp] peer 20 label-route-capability
[ASBR-PE2-bgp] peer 20 next-hop-local
[ASBR-PE2-bgp] peer 20 route-policy rtp-ibgp export
[ASBR-PE2-bgp] peer 202.200.1.2 group 20
[ASBR-PE2-bgp] peer 202.200.1.2 connect-interface loopback0
1.4.7 Hierarchical MPLS L3VPN Configuration Example
I. Network requirements
For those VPNs that have distinct hierarchy, an MPLS VPN covering a province and its
cities, for example, incorporating the backbone network at the province level and the
networks at the city level into a single MPLS VPN will impose a high requirement in
performance on the equipment on the entire network, in the event that the network
topology size is large. However, the requirement in equipment performance can
become lower if this MPLS VPN is separated into two VPNs, the network at the
province level and the network at the city level, for example.
SPE acts as a PE on the network at the province level, and is connected with a
downstream MPLS VPN at the city level. UPE acts as a PE on the network at the city
level and provide access service for the VPN clients which are normally low-end
routers.
Chapter 1 MPLS L3VPN Configuration
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