251
[P-LoopBack0] ip address 2.2.2.9 32
[P-LoopBack0] quit
[P] interface vlan-interface 3
[P-Vlan-interface3] ip address 172.1.1.2 24
[P- Vlan-interface3] quit
[P] interface vlan-interface 1
[P-Vlan-interface1] ip address 172.2.1.1 24
[P-Vlan-interface1] quit
[P] ospf
[P-ospf-1] area 0
[P-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0] network 2.2.2.9 0.0.0.0
[P-ospf-1-area-0.0.0.0] quit
[P-ospf-1] quit
# Configure PE 2.
<PE2> system-view
[PE2] interface loopback 0
[PE2-LoopBack0] ip address 3.3.3.9 32
[PE2-LoopBack0] quit
[PE2] interface vlan-interface 1
[PE2-Vlan-interface1] ip address 172.2.1.2 24
[PE2-Vlan-interface1] quit
[PE2] ospf
[PE2-ospf-1] area 0
[PE2-ospf-1-area-0.0.0.0] network 172.2.1.0 0.0.0.255
[PE2-ospf-1-area-0.0.0.0] network 3.3.3.9 0.0.0.0
[PE2-ospf-1-area-0.0.0.0] quit
[PE2-ospf-1] quit
After you complete the configuration, OSPF adjacencies are established between PE 1, P, and PE
2. Issue the
display ospf peer
command. You can see that the adjacency status is Full. Issue the
display ip routing-table
command. You can see that the PEs have learned the loopback route of
each other. The following takes PE 1 as an example:
[PE1] display ip routing-table
Routing Tables: Public
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.9/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.9/32 OSPF 10 1 172.1.1.2 Vlan3
3.3.3.9/32 OSPF 10 2 172.1.1.2 Vlan3
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
172.1.1.0/24 Direct 0 0 172.1.1.1 Vlan3
172.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
172.2.1.0/24 OSPF 10 1 172.1.1.2 Vlan3
[PE1] display ospf peer verbose
OSPF Process 1 with Router ID 1.1.1.9
Neighbors