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Alteon OS Application Guide
Chapter 12: OSPF
20542C4911, January 2007
Example 1: Simple OSPF Domain
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 12-5 A Simple OSPF Domain
Follow this procedure to configure OSPF support as shown in Figure 12-5:
1. Configure IP interfaces on each network that will be attached to OSPF areas.
In this example, two IP interfaces are needed: one for the backbone network on 10.10.7.0/24
and one for the stub area network on 10.10.12.0/24.
2. Enable OSPF.
>> # /cfg/l3/if 1 (Select menu for IP interface 1)
>> IP Interface 1 # addr 10.10.7.1 (Set IP address on backbone network)
>> IP Interface 1 # mask 255.255.255.0 (Set IP mask on backbone network)
>> IP Interface 1 # enable (Enable IP interface 1)
>> IP Interface 1 # ../if 2 (Select menu for IP interface 2)
>> IP Interface 2 # addr 10.10.12.1 (Set IP address on stub area network)
>> IP Interface 2 # mask 255.255.255.0 (Set IP mask on stub area network)
>> IP Interface 2 # enable (Enable IP interface 2)
>> IP Interface 2 # /cfg/l3/ospf/on (Enable OSPF on the switch)
BladeCenter
BladeCenter
BladeCenter
Network
10.10.12.0/24
10.10.7.0/24
Network