BLADE OS™ Application Guide HP GbE2c Ethernet Blade Switch for c-Class BladeSystem Version 5.1 Advanced Functionality Software

BLADE OS 5.1 Application Guide
BMD00113, September 2009 Chapter 12: OSPF  207
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 24 A Simple OSPF Domain
Follow this procedure to configure OSPF support as shown in Figure 24:
1. Configure IP interfaces on each network that will be attached to OSPF areas.
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.
2. Enable OSPF.
Network
10.10.12.0/24
10.10.7.0/24
Network
Blade Chassis
Blade Chassis
>> # /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)