R3102-R3103-HP 6600/HSR6600 Routers MPLS Configuration Guide

380
30.1.1.0/24 Direct 0 0 30.1.1.2 GE3/1/1.2
30.1.1.2/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.10.0/24 O_ASE 150 1 30.1.1.1 GE3/1/1.2
Now, the routing information for the two VPNs has been redistributed into the routing tables on PE 1.
Configuring BGP AS number substitution
Network requirements
As shown in Figure 703, CE 1 and CE 2 belong to VPN 1 and are connected to PE 1 and PE 2
respectively. In addition, they use the same AS number 600.
Figure 97 Network diagram
Device Interface IP address Device Interface IP address
CE 1 GE 2/1/1 10.1.1.1/24 P Loop0 2.2.2.9/32
GE 2/1/2 100.1.1.1/24 GE 2/1/1 20.1.1.2/24
PE 1 Loop0 1.1.1.9/32 GE 2/1/2 30.1.1.1/24
GE 2/1/1 10.1.1.2/24 PE 2 Loop0 3.3.3.9/32
GE 2/1/2 20.1.1.1/24 GE 2/1/1 10.2.1.2/24
CE 2 GE 2/1/1 10.2.1.1/24 GE 2/1/2 30.1.1.2/24
GE 2/1/2 200.1.1.1/24
Configuration procedure
1. Configure basic MPLS L3VPN:
{ Configure OSPF on the MPLS backbone to allow the PEs and P device to learn the routes of the
loopback interfaces from each other.
{ Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs.
{ Establish MP-IBGP peer relationship between the PEs to advertise VPN IPv4 routes.
{ Configure the VPN instance of VPN 1 on PE 2 to allow CE 2 to access the network.
{ Configure the VPN instance of VPN 1 on PE 1 to allow CE 1 to access the network.