3Com 8807 - Page 575

Typical BGP/MPLS VPN Configuration Example 575
The example adopts Option C to implement a cross-domain BGP/MPLS VPN, that
is, the VPN routing is managed by the Multi-hop MP-EBGP which advertise label
VPN-IPv4 routes between PEs.
Network diagram
Figure 139 Network diagram for Multihop EBGP cross-domain VPN
Configuration procedure
■ Configuring OSPF on the MPLS backbone network
■ Configuring basic MPLS capability on the MPLS backbone network
■ Configuring a VPN instance on PEs.
■ Configuring MP-BGP
1 Configure OSPF as the IGP protocol on the MPLS backbone network; making
OSPFs on PEs can learn routes from each other. Create OSPF neighbor between
ASBR-PE and PE in the same AS.
# Configure PE1.
[PE1] interface loopback0
[PE1-LoopBack0] ip address 202.100.1.2 255.255.255.255
[PE1-LoopBack0] quit
[PE1] vlan 110
[PE1-vlan110] interface vlan-interface 110
[PE1-Vlan-interface110] ip address 172.1.1.2 255.255.0.0
[PE1-Vlan-interface110] quit
[PE1] ospf
[PE1-ospf-1] area 0
[PE1-ospf-1-area-0.0.0.0] network 172.1.0.0 0.0.255.255
[PE1-ospf-1-area-0.0.0.0] network 202.100.1.2 0.0.0.0
[PE1-ospf-1-area-0.0.0.0] quit
[PE1-ospf-1] quit
# Configure ASBR-PE1.
[ASBR-PE1] interface loopback0
[ASBR-PE1-LoopBack 0] ip address 202.100.1.1 255.255.255.255
[ASBR-PE1-LoopBack 0] quit
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
VLAN 410
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
VLAN 110
172.1.1.2/16
VLAN 210
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
VLAN 110
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
VLAN 310
162.1.1.1/16
VLAN 310
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
VLAN 510
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
VLAN 410
168.1.1.2/16
VLAN 510
168.2.2.2/16
VLAN 210
192.1.1.2/24
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
:
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
:
172.1.1.2/16
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
:
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
:
162.1.1.1/16
:
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
:
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
168.1.1.2/16 168.2.2.2/16
:
192.1.1.2/24
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
VLAN 410
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
VLAN 110
172.1.1.2/16
VLAN 210
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
VLAN 110
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
VLAN 310
162.1.1.1/16
VLAN 310
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
VLAN 510
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
VLAN 410
168.1.1.2/16
VLAN 510
168.2.2.2/16
VLAN 210
192.1.1.2/24
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
VLAN 410
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
VLAN 110
172.1.1.2/16
VLAN 210
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
VLAN 110
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
VLAN 310
162.1.1.1/16
VLAN 310
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
VLAN 510
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
VLAN 410
168.1.1.2/16
VLAN 510
168.2.2.2/16
VLAN 210
192.1.1.2/24
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
:
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
:
172.1.1.2/16
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
:
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
:
162.1.1.1/16
:
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
:
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
168.1.1.2/16 168.2.2.2/16
:
192.1.1.2/24
PE2
LSR ID:
162.1.1.2
ASBR-PE2
LSR ID:162.1 .1.1
BGP/MPLS Backbo ne
AS 200
ASBR -PE1
LSR ID:172.1 .1.1
PE1
LSR ID:
172.1.1.2
BGP/MPLS Backbone
AS 100
:
168.1.1.1/16
Loopback0:
202.100. 1.2/ 32
:
172.1.1.2/16
192.1.1.1/24
Loopback0:
202.100. 1.1/ 32
:
172.1.1.1/16
Loopback0:
202.200. 1.1/ 32
:
162.1.1.1/16
:
162.1.1.2/16
Loopback0:
200.200. 1.2/ 32
:
168.2.2.1/16
CE1
AS 65001
CE2
AS 650 02
168.1.1.2/16 168.2.2.2/16
:
192.1.1.2/24