Command Reference Guide

Open Shortest Path First Commands
CLI Command Reference
September 2014 Page 572
HP Moonshot Switch Module CLI Command Reference
timers pacing lsa-group
To adjust how OSPF groups LSAs for periodic refresh, use the timers pacing lsa-group command in OSPFv2
Router Configuration mode. OSPF refreshes self-originated LSAs approximately once every 30 minutes. When
OSPF refreshes LSAs, it considers all self-originated LSAs whose age is from 1800 to 1800 plus the pacing group
size. Grouping LSAs for refresh allows OSPF to combine refreshed LSAs into a minimal number of LS Update
packets. Minimizing the number of Update packets makes LSA distribution more efficient.
When OSPF originates a new or changed LSA, it selects a random refresh delay for the LSA. When the refresh
delay expires, OSPF refreshes the LSA. By selecting a random refresh delay, OSPF avoids refreshing a large
number of LSAs at one time, even if a large number of LSAs are originated at one time.
timers spf
Use this command to configure the SPF delay time and hold time. The valid range for both parameters is 0-
65535 seconds.
Default
60 seconds
Format
timers pacing lsa-group seconds
Mode OSPFv2 Router Configuration
Parameter Description
seconds Width of the window in which LSAs are refreshed. The range for the pacing group window
is from 10 to 1800 seconds.
Default • delay-time—5
•hold-time—10
Format
timers spf delay-time hold-time
Mode Router OSPF Config