Specifying Spf Calculation Interval; Specifying The Lsa Arrival Interval; Specifying The Lsa Generation Interval - HP 6125G Configuration Manual

Specifying SPF calculation interval

LSDB changes lead to SPF calculations. When the topology changes frequently, a large amount of
network and router resources are occupied by SPF calculation. Adjust the SPF calculation interval to
reduce the impact.
When network changes are not frequent, the minimum-interval is adopted. If network changes become
frequent, the SPF calculation interval is incremented by incremental-interval × 2n-2 (n is the number of
calculation times) each time a calculation occurs until the maximum-interval is reached.
To configure SPF calculation interval:
Step
1. Enter system view.
2. Enter OSPF view.
3. Specify the SPF
calculation interval.

Specifying the LSA arrival interval

After receiving the same LSA as the previously received LSA within the LSA arrival interval, OSPF discards
the LSA.
To configure the LSA arrival interval:
Step
1. Enter system view.
2. Enter OSPF view.
Configure the LSA arrival
3.
interval.

Specifying the LSA generation interval

You can adjust the LSA generation interval to protect network resources and routers from being over
consumed by frequent network changes.
When network changes are not frequent, LSAs are generated at the minimum-interval. If network
changes become frequent, the LSA generation interval is incremented by incremental-interval × 2n-2 (n
is the number of generation times) each time a LSA generation occurs until the maximum-interval is
reached.
To configure the LSA generation interval:
Command
system-view
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
spf-schedule-interval maximum-interval
[ minimum-interval
[ incremental-interval ] ]
Command
system-view
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
lsa-arrival-interval interval
80
Remarks
N/A
N/A
Optional.
By default, the interval is 5
seconds.
Remarks
N/A
N/A
Optional.
1000 milliseconds by default.
Make sure this interval is
smaller than or equal to the
interval set with the
lsa-generation-interval
command.