Configuring OSPF

Configuring OSPF

 

 

 

 

Configuring Router Capabilities

The following list shows various commands that can be useful in tailoring a router’s performance capabili- ties. All of the listed parameters have defaults that are acceptable for running an OSPF network.

ip ospf exit-overflow-intervalSets the overflow interval value. The overflow interval is the time

 

whereby the router will wait before attempting to leave the database

 

overflow state.

ip ospf extlsdb-limit

Sets a limit to the number of external Link State Databases entries

 

learned by the router. An external LSDB entry is created when the

 

router learns a link address that exists outside of its Autonomous System

 

(AS).

ip ospf host

Creates and deletes an OSPF entry for directly attached hosts.

ip ospf mtu-checking

Enables or disables the use of Maximum Transfer Unit (MTU) checking

 

on received OSPF database description packets.

ip ospf route-tag

Configures a tag value for Autonomous System External (ASE) routes

 

created.

ip ospf spf-timer

Configures timers for Shortest Path First (SPF) calculation.

To configure a router parameter, enter the parameter at the CLI prompt with the new value or required variables. For example to set the exit overflow interval to 40, enter:

-> ip ospf exit-overflow-interval 40

To enable MTU checking, enter:

-> ip ospf mtu-checking

To set the route tag to 5, enter:

-> ip ospf route-tag 5

To set the SPF timer delay to 3 and the hold time to 6, enter:

-> ip ospf spf-timer delay 3 hold 6

To return a parameter to its default setting, enter the command with no parameter value, as shown:

-> ip ospf spf-timer

OmniSwitch 6600 Family Advanced Routing Configuration Guide March 2005

page 1-29

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Alcatel Carrier Internetworking Solutions 060187-10 REV D manual Configuring Router Capabilities