KB.15.15

7 Open Shortest Path First Protocol (OSPF)

OSPFv2 is the IPv4 implementation of the Open Shortest Path First protocol. (OSPFv3 is the IPv6

implementation of this protocol.) Beginning with software version K.15.01, the switches can be

configured to run OSPFv2 either alone or simultaneously with OSPFv3. (OSPFv2 and OSPFv3 run

as independent protocols on the switch and do not have any interaction when run simultaneously.)

For overview information on OSPF, see “Overview of OSPF” (page 189).

Configuring OSPF on the routing switch

Enabling IP routing

Syntax:

[no] ip routing

Executed at the global configuration level to enable IP routing on the routing switch.

Default: Disabled

The no form of the command disables IP routing. (Global OSPF and RIP routing

must be disabled before you disable IP routing.)

Example:

HP Switch(config)# ip routing

Enabling global OSPF routing

Syntax:

[no] router ospf [ enable | disable ]

Executed at the global configuration level to enable OSPF on the routing switch

and to enter the OSPF router context. This enables you to proceed with assigning

OSPF areas, including area border router (ABR) and autonomous system boundary

router (ASBR) configuration, and to modify OSPF global parameter settings as

needed.

The enable form of the command enables OSPF routing, and the disable form

of the command disables OSPF routing.

Global IP routing must be enabled before executing this command.

Default: Disabled

The no form of the command deletes all protocol specific information from the global

context and interface context. All protocol parameters are set to default values.

NOTE: If you disable OSPF, the switch retains all the configuration information

for the disabled protocol in flash memory. If you subsequently restart OSPF, the

existing configuration will be applied. After restarting OSPF, the exiting configuration

will be applied and the protocol will be in the disabled state.

140 Open Shortest Path First Protocol (OSPF)