Enabling High Availability Features

To configure BGP for NSF, use the following commands beginning in privileged EXEC configuration mode, and repeat this procedure on each of the BGP NSF peer devices:

 

Command

Purpose

 

 

 

Step 1

Router# configure terminal

Enters global configuration mode.

 

 

 

Step 2

Router(config)# router bgp

Enables a BGP routing process, and enters router

 

as-number

configuration mode.

 

 

 

Step 3

Router(config-router)# bgp

Enables the BGP graceful restart capability, starting NSF for

 

graceful-restart

BGP.

 

 

If you enter this command after the BGP session has been

 

 

established, you must restart the session for the capability to

 

 

be exchanged with the BGP neighbor.

 

 

Use this command on the restarting router and all of its peers.

 

 

 

Configuring OSPF NSF

Note All peer devices participating in OSPF NSF must be made OSPF NSF-aware, which happens automatically once you install an NSF software image on the device.

To configure NSF for OSPF, use the following commands beginning in privileged EXEC configuration mode:

 

Command

Purpose

 

 

 

Step 1

Router# configure terminal

Enters global configuration mode.

 

 

 

Step 2

Router(config)# router ospf processID

Enables an OSPF routing process, and enters router

 

 

configuration mode.

 

 

 

Step 3

Router(config-router)# nsf

Enables NSF operations for OSPF.

 

 

 

Configuring IS-IS NSF

To configure NSF for IS-IS, use the following commands beginning in privileged EXEC configuration mode:

 

Command

Purpose

 

 

 

Step 1

Router# configure terminal

Enters global configuration mode.

 

 

 

Step 2

Router(config)# router isis [tag]

Enables an IS-IS routing process, and enters router

 

 

configuration mode.

 

 

 

Route Switch Processor (RSP8) Installation and Configuration Guide

 

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Cisco Systems RSP8 manual Configuring Ospf NSF, Configuring IS-IS NSF, As-number, Graceful-restart