To configure an OSPF interface

Purpose

The OSPF interface parameters can differ from the OSPF routing instance parameters configured in To configure OSPF on a default routing instance or a VRF routing instance . Interface parameters specify the interface routing levels. Interface level capabilities are compared to the router-wide level capabilities to determine the type of level 1, level 2, and level 1 and 2 adjacencies that are created between devices.

Steps
 
1 

Enable the OSPF protocol on a routing instance, as described in To enable OSPF on a routing instance . If no OSPF instance exists, you must create one by performing To configure OSPF on a default routing instance or a VRF routing instance .

2 

In the navigation tree Routing view, perform one of the following:

  1. For NEs that support multiple OSPF instances, expand Network→NE→Routing Instance→OSPFvN Instances, where N is the OSPF version number; for example, 2 or 3.

  2. For all other supported devices, expand Network→NE→Routing Instance→OSPFvN, where N is the OSPF version number; for example, 2 or 3.

3 

Perform one of the following:

  1. For NEs that support multiple OSPF instances, right-click on the appropriate OSPFvN Instances icon and choose Create OSPFvN Interface. The OSPF Interface (Create) form opens. Go to Step 4.

  2. For all other supported devices, right-click on the appropriate OSPFvN icon and choose Properties. The OSPF Interface, Routing instance, OSPFvN instance (Edit) form opens. Go to Step 4.

4 

Configure the required parameters on the Segment Routing tab.

You cannot configure the SID Type or SID Value parameter on a network interface that is not loopback enabled or that is on a service interface. In the navigation tree Routing view, expand Network→NE→Routing Instance→Interface, right-click on the interface and choose Properties. Configure the Loopback Enabled parameter on the Network Interface (Edit) form.

5 

Configure the required parameters on the Flexible Algorithms tab.

You cannot configure the SID Type or SID Value parameter on a network interface that is not loopback enabled or that is on a service interface. In the navigation tree Routing view, expand Network→NE→Routing Instance→Interface, right-click on the interface and choose Properties. Configure the Loopback Enabled parameter on the Network Interface (Edit) form.

  1. Click Search to populate a list of flexible algorithms.

  2. Choose a flexible algorithm and click Properties, or click Create. The Interface Flexible Algorithm (Create|Edit) form opens.

  3. Configure the Flexible Algorithm ID parameter.

  4. Click OK.

Repeat this step to add additional flexible algorithms as needed.

6 

Configure the required parameters on the Authentication and Policies tabs.

7 

Save your changes and close the form.

End of steps