Reference Guide

702 | Open Shortest Path First (OSPFv2)
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Basic OSPFv2 Router Topology
The following illustration is a sample basic OSPFv2 topology.
Figure 33-176. Basic topology and CLI commands for OSPFv2
OSPF
A
R
E
A
0
GI 1/1
GI 1/2
GI 2/1
GI 2/2
GI 3/1 GI 3/2
router ospf 11111
network 10.0.11.0/24
area 0
network 10.0.12.0/24
area 0
network 192.168.100.0/24
area 0
!
interface GigabitEthernet
1/1
ip address 10.1.11.1/24
no shutdown
!
interface GigabitEthernet
1/2
ip address 10.2.12.2/24
no shutdown
!
interface Loopback 10
ip address
192.168.100.100/24
router ospf 33333
network 192.168.100.0/24
area 0
network 10.0.13.0/24
area 0
network 10.0.23.0/24
area 0
!
interface Loopback 30
ip address
192.168.100.100/24
no shutdown
!
interface GigabitEthernet
3/1
ip address 10.1.13.3/24
no shutdown
!
interface GigabitEthernet
3/2
ip address 10.2.13.3/24
router ospf 22222
network 192.168.100.0/24
area 0
network 10.2.21.0/24
area 0
network 10.2.22.0/24
area 0
!
interface Loopback 20
ip address
192.168.100.20/24
no shutdown
!
interface
GigabitEthernet 2/1
ip address 10.2.21.2/24
no shutdown
!
interface
GigabitEthernet 2/2
ip address 10.2.22.2/24