Change Lsa Group Pacing - Cisco ONS 15454 SDH Configuration Manual

Configuring OSPF
Command
Step 9
Router(config)# passive-interface type
number
Step 10
Router(config)# timers spf spf-delay
spf-holdtime
Step 11
Router(config)# ospf log-adj-changes
Step 12
Router(config)# end
Step 13
Router# show ip ospf [ process-id
[ area-id ]] database
Step 14
Router# copy running-config
startup-config

Change LSA Group Pacing

The OSPF LSA group pacing feature allows the router to group OSPF LSAs and pace the refreshing,
check-summing, and aging functions for more efficient router use. This feature is enabled by default with
a four-minute default pacing interval, and you do not usually need to modify this parameter. The
optimum group pacing interval is inversely proportional to the number of LSAs the router is refreshing,
check-summing, and aging. For example, if you have approximately 10,000 LSAs in the database,
decreasing the pacing interval would benefit you. If you have a very small database (40 to 100 LSAs),
increasing the pacing interval to 10 to 20 minutes might benefit you slightly.
Beginning in privileged EXEC mode, follow this procedure to configure OSPF LSA pacing:
Command
Step 1
Router# configure terminal
Step 2
Router(config)# router ospf
process-id
Step 3
Router(config)# timers
lsa-group-pacing seconds
Step 4
Router(config)# end
Step 5
Router# show running-config
Step 6
Router# copy running-config
startup-config
To return to the default value, use the no timers lsa-group-pacing router configuration command.
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
11-18
Chapter 11 Configuring Networking Protocols
Purpose
(Optional) Suppresses the sending of hello packets
through the specified interface.
(Optional) Configures route calculation timers.
• spf-delay—Enter an integer from 0 to 65535. The
default is 5 seconds; 0 means no delay.
• spf-holdtime—Enter an integer from 0 to 65535.
The default is 10 seconds; 0 means no delay.
(Optional) Sends syslog message when a neighbor state
changes.
Returns to privileged EXEC mode.
Displays lists of information related to the OSPF
database for a specific router. For some of the keyword
options, see to the "Monitoring OSPF" section on
page 11-19.
(Optional) Saves your entries in the configuration file.
Purpose
Enters global configuration mode.
Enables OSPF routing, and enters router configuration mode.
Changes the group pacing of LSAs.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.