H3C Technologies H3C S10500 Series Switches - Manual (Page 278)

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NOTE:
For commands to display information about a routing table, see Layer 3—IP Routing Command
Reference.
MPLS L3VPN configuration examples
Configuring MPLS L3VPNs using eBGP between PE and CE
Network requirements
• CE 1 and CE 3 belong to VPN 1. CE 2 and CE 4 belong to VPN 2.
• VPN 1 uses VPN target attribute 111:1. VPN 2 uses VPN target attribute 222:2. Users of different
VPNs cannot access each other.
• eBGP is used to exchange VPN routing information between CE and PE.
• PEs use OSPF to communicate with each other and use MP-iBGP to exchange VPN routing
information.
Figure 71 Configure MPLS L3VPNs using eBGP between PE and CE
Device Interface IP address Device Interface IP address
CE 1 Vlan-int11 10.1.1.1/24 P Loop0 2.2.2.9/32
PE 1 Loop0 1.1.1.9/32 Vlan-int12 172.2.1.1/24
Vlan-int11 10.1.1.2/24 Vlan-int13 172.1.1.2/24
Vlan-int13 172.1.1.1/24 PE 2 Loop0 3.3.3.9/32
Vlan-int12 10.2.1.2/24 Vlan-int12 172.2.1.2/24
CE 2 Vlan-int12 10.2.1.1/24 Vlan-int11 10.3.1.2/24
CE 3 Vlan-int11 10.3.1.1/24 Vlan-int13 10.4.1.2/24
CE 4 Vlan-int13 10.4.1.1/24
Configuration procedure
1. Configure an IGP on the MPLS backbone to ensure IP connectivity within the backbone.