Configuring OSPF on the routing switch

Create the OSPF instance and enter the OSPF router configuration context. From this, you can proceed with other OSPF configuration tasks.

Prerequisites

You must be in the global configuration context, as indicated by theswitch(config)#prompt to create the OSPF instance and enter the OSPF router configuration context.
To configure a router ID, create OSPF network areas, or adjust other global OSPF configuration items, you must be in the router configuration context, as indicated by theswitch(config-router)#prompt.

Procedure

Create the OSPF instance and enter the OSPF router configuration context using the following command. For command details, seerouter ospf.
router ospf[vrf]
For example, the following command creates OSPF instance 1.
```
switch(config)#router ospf 1switch(config-ospf-1)#
```
配置一个全局路由器ID使用下面的command. For command details, seerouter-id.
router-id
For example, the following command sets the router ID to 1.1.1.1.
```
switch(config-ospf-1)#router-id 1.1.1.1
```
Optionally, if the OSPF process was disabled (it is enabled by default), enable the OSPF process using the following command.

enable

For command details, seeenable. (Refer todisablefor disabling the OSPF process).