Planet XGS3-42000R User Manual page 336

Figure 39-3-5 Example of MP LS VPN
As the figure shows, for a typical MPLS VPN application, the public net work region consists of PE1, P and
PE2, which MP LS is applied for packet transmission. VPN-A consists of CE-A1 and CE -A2, and VP N-B
consists of CE-B1 and CE-B2. These two VPNs are isolated from each ot her. PE1 and PE2 are edge routers
which are provided by the operators. CE -A1, CE -A2, CE -B1 and CE-B 2 are the access switches on the user
side. PC1-P C4 indicate the net work users. BGP runs at both the public and private network region. For the
public network region, VPN routing should be support ed and the LOOPBACK int erface should be used for
connections.
The sample configurations are listed as below.
Configurations on CE-A1：
CE-A1#config
CE-A1(config)#interface vlan 2
CE-A1(config-if-Vlan2)#ip address 192.168.101.2 255. 255.255.0
CE-A1(config-if-Vlan2)#exit
CE-A1(config)#interface vlan 1
CE-A1(config-if-Vlan2)#ip address 10.1.1.1 255.255.255.0
CE-A1(config-if-Vlan2)#exit
CE-A1(config)#rout er bgp 60101
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