Open Shortest Path First (OSPFv2) | 367
To enable OSPFv2 routing, follow these steps.
To enable the OSPF process, return to CONFIGURATION mode. The OSPF process ID is the identifying 
number assigned to the OSPF process and the Router ID is the IP address associated with the OSPF 
process.
If you try to enter an OSPF process ID, or if you try to enable more OSPF processes than available Layer 3 
interfaces, prior to assigning an IP address to an interface and setting the 
no shutdown command, you will 
see the following message.
In CONFIGURATION ROUTER OSPF mode, assign the router ID. The router ID is not required to be the 
router’s IP address. Dell Force10 recommends using the IP address as the router ID for easier management 
and troubleshooting.
To disable OSPF, use the 
no router ospf process-id command in CONFIGURATION mode.
To reset the OSPFv2 process, use the 
clear ip ospf process-id command in EXEC Privilege mode. 
To view the current OSPFv2 status, use the 
show ip ospf process-id command in EXEC mode (Figure 18-8).
Step Command Syntax Command Mode Usage
1
ip address ip-address mask CONFIG-INTERFACE Assign an IP address to an interface.
Format: A.B.C.D/M
If using a loopback interface, refer to 
Loopback Interfaces on page 230.
2
no shutdown
CONFIG-INTERFACE Enable the interface.
Command Syntax Command Mode Usage
router ospf process-id 
CONFIGURATION  Enable the OSPFv2 process globally. 
Range: 1-65535
Message 3  
FTOS(conf)#router ospf 1
% Error: No router ID available.
Command Syntax Command Mode Usage
router-id ip address CONFIG-ROUTER-OSPF-id Assign the Router ID for the OSPFv2 
process.
IP Address: A.B.C.D