Reference Guide

582 | Open Shortest Path First (OSPFv2)
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OSPF must be configured GLOBALLY on the system in CONFIGURATION mode.
OSPF features and functions are assigned to each router using the CONFIG-INTERFACE commands for
each interface.
Configuration Task List for OSPFv2 (OSPF for IPv4)
Open Shortest Path First version 2 (OSPF for IPv4) is supported on platforms c e 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
• Configure virtual links
• 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.
Note: By default, OSPF is disabled