3Com 3C13636 Configuration Manual page 903

3Com Router 3000 Ethernet Family
Configuration Guide
CE-1
CE-2
Figure 3-14 GRE tunnel BGP/MPLS VPN network diagram
III. Configuration procedure
1) Configure CE1
# Configure CE1 and PE1 as neighbors, redistribute directly connected routes and
static routes to redistribute intra-CE1 VPN routes to BGP and advertise to PE1. CE1
connects PE1 through Ethernet0/0/0.
[CE1] interface ethernet 0/0/0
[CE1-Ethernet0/0/0] ip address 20.1.1.1 255.255.0.0
[CE1-Ethernet0/0/0] quit
[CE1] bgp 65410
[CE1-bgp] group 20 external
[CE1-bgp] peer 20.1.1.2 group 20 as-number 100
[CE1-bgp] import-route direct
[CE1-bgp] import-route static
Note:
The configuration of other three CEs (CE2~CE4) is similar, so it is not mentioned here.
2) Configure PE1.
# Configure vpn-instance.
[PE1] ip vpn-instance vpna
[PE1-vpn-vpna] route-distinguisher 100:1
[PE1-vpn-vpna] vpn-target 100:1 both
[PE1-vpn-vpna] VPN-target 100:2 import-extcommunity
[PE1-vpn-vpna] VPN-target 100:3 export-extcommunity
[PE1-vpn-vpna] quit
# Bind the interface Ethernet1/0/0 connecting PE1 and CE1 to the VPN-A.
[PE1] interface loopback0
ether1/0/1:
192.168.1.0/24
ethenet1/0/0
PE 1
L0:1.1.1.9/32 L0:4.4.4.9/32
3Com Corporation
Chapter 3 BGP/MPLS VPN Configuration
P
ethernet1/0/0:
192.168.2.0/24
ethernet2/0/2
L0:2.2.29/32
AS 100
3-41
CE-3
PE 2
CE-4