Reference Guide

Open Shortest Path First (OSPFv2) | 699
If implementing, Multi-Process OSPF, you must create an equal number of Layer 3 enabled interfaces and
OSPF Process IDs. For example, if you create 4 OSPFv2 process IDs, you must have 4 interfaces with
Layer 3 enabled.
Use these commands on one of the interfaces to enable OSPFv2 routing.
Return to CONFIGURATION mode to enable the OSPF process. 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. .
Once the OSPF process and the VRF are tied together, the OSPF Process ID cannot be used again in the
system.
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.
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 446.
2
no shutdown
CONFIG-INTERFACE Enable the interface.
Command Syntax Command Mode Usage
router ospf process-id [vrf {vrf name}] CONFIGURATION Enable the OSPFv2 process globally.
Range: 0-65535
vrf name: Enter the VRF key word and
instance name to tie the OSPF instance to the
VRF. All network commands under this OSPF
instance are subsequently tied to the VRF
instance.
Message 3
C300(conf)#router ospf 1
% Error: No router ID available.
Command Syntax Command Mode Usage
router-id ip address CONFIG-ROUTER-O
SPF-id
Assign the Router ID for the OSPFv2
process.
IP Address: A.B.C.D