Cisco Nexus 5000 Series NX-OS Unicast Routing Command Reference

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Book Contents

New and Changed
Preface
- A Commands
- B Commands
- C Commands
- E Commands
- F Commands
- I Commands
- L Commands
- M Commands
- N Commands
- P Commands
- R Commands
- S Commands
- Show Commands
- T Commands
- V Commands
- A Commands
- C Commands
- D Commands
- E Commands
- F Commands
- I Commands
- L Commands
- M Commands
- R Commands
- S Commands
- Show Commands
- T Commands
- A Commands
- C Commands
- D Commands
- F Commands
- H Commands
- I Commands
- L Commands
- M Commands
- P Commands
- R Commands
- S Commands
- Show Commands
- T Commands
- V Commands

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Updated:: April 10, 2014

F Commands

This chapter describes the Cisco NX-OS Open Shortest Path First (OSPF) commands that begin with F.

feature ospf

To enable the Open Shortest Path First Protocol (OSPF), use the feature ospf command. To disable OSPF, use the no form of this command.

feature ospf

no feature ospf

Syntax Description

This command has no arguments or keywords.

Command Default

Disabled

Command Modes

Global configuration mode

Command History

Release	Modification
5.2(1)N1(1)	This command was introduced.

Usage Guidelines

You must enable the OSPF feature before you can configure OSPF.

Note In Cisco NX-OS Release 5.2(1)N1(1), a software upgrade on the Cisco Nexus 5548 switch and the Cisco Nexus 5596 switch that has the Layer 3 features enabled is disruptive. You must reload the switch and the Cisco Nexus 2000 Series Fabric Extender.

This command requires the LAN Base Services license.

Examples

This example shows how to enable the OSPF feature:

switch# configure terminal

switch(config)# feature ospf

switch(config)#

This example shows how to disable the OSPF feature:

switch# configure terminal

switch(config)# no feature ospf

switch(config)#

Related Commands

Command	Description
router ospf	Creates an OSPF instance.
show feature	Displays the status of features on a switch.
show ospf	Displays OSPF configuration information.

flush-routes (OSPF)

To flush routes on a restart for the Open Shortest Path First (OSPF) protocol, use the flush-routes command. To disable this feature, use the no form of this command.

flush-routes

no flush-routes