Cisco Systems IOS XR

Implementing OSPF on Cisco IOS XR Software

How to Implement OSPF on CiscoIOS XR Software

RC-198

Cisco IOS XR Routing Configuration Guide

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DETAILED STEPS

Command or Action Purpose

Step1 configure

Example:

RP/0/RP0/CPU0:router# configure

Enters global configuration mode.

Step2 router ospf process-name

router ospfv3 process-name

Example:

RP/0/RP0/CPU0:router(config)# router ospf 1

RP/0/RP0/CPU0:router(config)# router ospfv3 1

Enables OSPF routing for the specified routing process and

places the router in router configuration mode.

Enables OSPFv3 routing for the specified routing process

and places the router in router ospfv3 configuration mode.

Note The process-name argument is any alphanumeric

string no longer than 40 characters.

Step3 router-id {ipv4-address | interface-type

interface-instance}

Example:

RP/0/RP0/CPU0:router(config-ospf)# router-id

192.168.4.3

Configures a router ID for the OSPF process.

Note We recommend using a stable IP address as the

router ID.

Step4 Perform Step 5 or Step 6 or both to control the

frequency that the same LSA is originated or accepted.

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Step5 timers lsa gen-interval seconds

Example:

RP/0/RP0/CPU0:router(config-ospf)# timers lsa

gen-interval 10

Changes the minimum interval between the same OSPF

LSAs that the router originates.

•The default is 5 seconds for both OSPF and OSPFv3.

Step6 timers lsa min-arrival seconds

Example:

RP/0/RP0/CPU0:router(config-ospf)# timers lsa

min-arrival 2

Limits the frequency that new processes of any particular

OSPF Version 2 LSA can be accepted during flooding.

•The default is 1 second.