In the following example, the dead interval is set at 4x the hello interval (shown in bold).Dell (conf-if-te-2/2)#ip ospf dead-interval 20Dell (conf-if-te-2/2)#do show ip os int tengigabitethernet 1/3TenGigabitEthernet 2/2 is up, line protocol is upInternet Address 20.0.0.1/24, Area 0Process ID 10, Router ID 1.1.1.2, Network Type BROADCAST, Cost: 1Transmit Delay is 1 sec, State DR, Priority 1Designated Router (ID) 1.1.1.2, Interface address 30.0.0.1Backup Designated Router (ID) 1.1.1.1, Interface address 30.0.0.2Timer intervals configured, Hello 20, Dead 80, Wait 20, Retransmit 5Hello due in 00:00:04Neighbor Count is 1, Adjacent neighbor count is 1Adjacent with neighbor 1.1.1.1 (Backup Designated Router)Dell (conf-if-te-2/2)#Configuration InformationThe interfaces must be in Layer-3 mode (assigned an IP address) and enabled so that they can send and receive traffic. The OSPFprocess must know about these interfaces.To make the OSPF process aware of these interfaces, they must be assigned to OSPF areas.You must configure OSPF GLOBALLY on the system in CONFIGURATION mode.NOTE: Loop back routes are not installed in the Route Table Manager (RTM) as non-active routes.OSPF features and functions are assigned to each router using the CONFIG-INTERFACE commands for each interface.NOTE: By default, OSPF is disabled.Configuration Task List for OSPFv2 (OSPF for IPv4)The following configuration tasks include two mandatory tasks and several optional tasks:• Enabling OSPFv2 (mandatory)• Assigning a Router ID• Enabling Multi-Process OSPF• Assigning an OSPFv2 Area (mandatory)• Enable OSPFv2 on Interfaces• Configuring Stub Areas• Enabling Passive Interfaces• Enabling Fast-Convergence• Changing OSPFv2 Parameters on Interfaces• Enabling OSPFv2 Authentication• Creating Filter Routes• Applying Prefix Lists• Redistributing Routes• Troubleshooting OSPFv21. Configure a physical interface. Assign an IP address, physical or Loopback, to the interface to enable Layer 3 routing.2. Enable OSPF globally. Assign network area and neighbors.3. Add interfaces or configure other attributes.For a complete list of the OSPF commands, refer to the OSPF section in the Dell Networking OS Command Line Reference Guidedocument.496 Open Shortest Path First (OSPFv2 and OSPFv3)
