260
Figure 70
Network diagram
Table 20
Interface and IP address assignment
Device Interface IP
address
Device
Interface
IP address
CE 1
Vlan-int11
100.1.1.1/24
CE 2
Vlan-int11
120.1.1.1/24
Vlan-int13
20.1.1.1/24
Vlan-int12
30.1.1.2/24
PE 1
Loop0
1.1.1.9/32
PE 2
Loop0
2.2.2.9/32
Loop1
3.3.3.3/32
Loop1
5.5.5.5/32
Vlan-int11
100.1.1.2/24
Vlan-int11
120.1.1.2/24
Vlan-int12
10.1.1.1/24
Vlan-int12
10.1.1.2/24
Switch
A
Vlan-int11
20.1.1.2/24
Vlan-int12
30.1.1.1/24
Configuration procedure
1.
Configure OSPF on the customer networks:
Configure conventional OSPF on CE 1, Switch A, and CE 2 to advertise addresses of the interfaces
as shown in
. Execute the
display ip routing-table
command to verify that CE 1 and CE
2 have learned the route to each other. (Details not shown.)
2.
Configure MPLS L3VPN on the backbone:
# Configure basic MPLS and MPLS LDP on PE 1 to establish LDP LSPs.
<PE1> system-view
[PE1] interface loopback 0
[PE1-LoopBack0] ip address 1.1.1.9 32
[PE1-LoopBack0] quit
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls ldp
[PE1-ldp] quit
[PE1] interface vlan-interface 12
[PE1-Vlan-interface12] ip address 10.1.1.1 24
[PE1-Vlan-interface12] mpls enable
Vlan-int12
Loop0
Loop0
Sham-link
CE 1
Switch A
CE 2
PE 2
PE 1
Loop1
Loop1
OSPF Area 1
Backdoor link
Vlan-int12
Vlan-int11
Vlan-int11
Vlan-int13
Vlan-int11
Vlan-int11
Vlan-int12
Vlan-int12
Vlan-int13