Reference Guide

600 | Open Shortest Path First (OSPFv2)
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Configuration Task List for OSPFv2 (OSPF for IPv4)
Open Shortest Path First version 2 (OSPF for IPv4) is supported on platforms s z
1. 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.
The following configuration steps include two mandatory steps and several optional ones:
• Enable OSPFv2 (mandatory)
• Enable Multi-Process OSPF
• Assign an OSPFv2 area (mandatory)
• Enable OSPFv2 on interfaces
• Configure stub areas
• Configure LSA throttling timers
• Enable passive interfaces
• Enable fast-convergence
• Change OSPFv2 parameters on interfaces
• Enable OSPFv2 authentication
• Redistribute routes
• Troubleshooting OSPFv2
For a complete listing of all commands related to OSPFv2, refer to the OSPF section in the FTOS
Command Line Interface document.
Enable OSPFv2
Assign an IP address to an interface (physical or Loopback) to enable Layer 3 routing. By default OSPF,
like all routing protocols, is disabled.
You must configure at least one interface for Layer 3 before enabling OSPFv2 globally.
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.
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