Specifications

212 Implementing IBM System Networking 10Gb Ethernet Switches
2. Enable OSPF.
Run ipv6 router ospf to enter the protocol configuration mode (Example 5-58).
Example 5-58 OSPF activation
ACC-1#configure terminal
Enter configuration commands, one per line. End with Ctrl/Z.
ACC-1(config)#ipv6 router ospf
ACC-1(config-router-ospf3)#router-id 2.2.2.1
ACC-1(config-router-ospf3)#enable
ACC-1(config-router-ospf3)#^Z
ACC-1#
3. Define areas.
If you are configuring multiple areas in your OSPF domain, one of the areas must be
designated as area 0, known as the backbone. The backbone is the central OSPF area
and is physically connected to all other areas. The areas inject routing information into the
backbone which, in turn, disseminates the information into other areas.
We use only area 0 (backbone) in our example.
Up to
three OSPFv3 areas can be connected to the switch with IBM Networking OS. To
configure an area, the OSPF number must be defined and then attached to a network
interface on the switch. The full process is explained in the following sections.
An OSPF area is defined by assigning two pieces of information: an area index and an
area ID. The commands to define and enable an OSPF area are:
– area <area index> area-id <n.n.n.n>
– area <area index> enable
The area <area index> parameter is an arbitrary index (0 - 2) used only by the switch.
This index number does not necessarily represent the OSPF area number, though for
configuration simplicity, it should do so where possible.
For more details about area-id formats and options, see 5.5, “More information” on
page 238.
Important: This operation is performed for all four Layer 3 switches (AGG-1, AGG-2,
ACC-1, and ACC-2)
Important: When OSPFv3 is enabled, the OSPF backbone area (0.0.0.0) is created by
default and is always active.
Note: The area option is an arbitrary index used only on the switch and does not
represent the actual OSPF area number. The actual OSPF area number is defined in
the area-id parameter of the command.