Configuring Dial-on-Demand Routing Backup with OSPF Support (Optional)

Two types of routing protocol traffic are used by OSPF to establish and maintain network structure. First, periodic hello packets are sent over each link for neighbor discovery and maintenance. Second, OSPF protocol traffic achieves and maintains link-state database synchronization between routers. The OSPF demand circuit feature removes the periodic nature of both traffic types and reduces the amount of OSPF traffic by removing all OSPF protocol traffic from a demand circuit when the routing domain is in a steady state. This feature allows the underlying data-link connections to be closed when no application traffic is on the network.

You must configure OSPF on the Services Router before configuring on-demand routing backup with OSPF support. For information on configuring OSPF, see Configuring an OSPF Network.

To configure OSPF demand circuits:

1. Navigate to the top of the configuration hierarchy in either the J-Web or CLI configuration editor.
2. Perform the configuration tasks described in Table 66.
3. If you are finished configuring the router, commit the configuration.
4. To verify that the network interface is configured correctly, see Verifying the ISDN Configuration.

Table 66: Configuring OSPF Demand Circuits