Example 1: Simple Ospf Domain - Lenovo RackSwitch G8264 Application Manual

Example 1: Simple OSPF Domain

1. Configure IP interfaces on each network that will be attached to OSPF areas.
2. Enable OSPF.
3. Define the backbone.
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G8264 Application Guide for ENOS 8.4
In this example, two OSPF areas are defined—one area is the backbone and the
other is a stub area. A stub area does not allow advertisements of external routes,
thus reducing the size of the database. Instead, a default summary route of IP
address 0.0.0.0 is automatically inserted into the stub area. Any traffic for IP
address destinations outside the stub area will be forwarded to the stub area's IP
interface, and then into the backbone.
Figure 52. A Simple OSPF Domain
Network
10.10.7.0/24
Follow this procedure to configure OSPF support as shown in Figure
In this example, two IP interfaces are needed:
 Interface 1 for the backbone network on 10.10.7.0/24
 Interface 2 for the stub area network on 10.10.12.0/24
RS G8264(config)# interface ip 1
RS G8264(config­ip­if)# ip address 10.10.7.1
RS G8264(config­ip­if)# ip netmask 255.255.255.0
RS G8264(config­ip­if)# enable
RS G8264(config­ip­if)# exit
RS G8264(config)# interface ip 2
RS G8264(config­ip­if)# ip address 10.10.12.1
RS G8264(config­ip­if)# ip netmask 255.255.255.0
RS G8264(config­ip­if)# enable
RS G8264(config­ip­if)# exit
Note: OSPFv2 supports IPv4 only. IPv6 is supported in OSPFv3 (see "OSPFv3
Implementation in Enterprise NOS" on page
RS G8264(config)# router ospf
RS G8264(config­router­ospf)# enable
The backbone is always configured as a transit area using areaid 0.0.0.0.
RS G8264(config­router­ospf)# area 0 area­id 0.0.0.0
RS G8264(config­router­ospf)# area 0 type transit
RS G8264(config­router­ospf)# area 0 enable
Network
10.10.12.0/24
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