Specifying spf calculation interval, Specifying the lsa generation interval – H3C Technologies H3C S5560 Series Switches User Manual
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Step Command
Remarks
3.
Specify the LSA transmission
delay.
ospfv3 trans-delay seconds
[ instance instance-id ]
By default, the LSA transmission
delay is 1 second.
Specifying SPF calculation interval
LSDB changes result in SPF calculations. When the topology changes frequently, a large amount of
network and router resources are occupied by SPF calculation. You can adjust the SPF calculation
interval to reduce the impact.
For a stable network, the minimum interval is used. If network changes become frequent, the SPF
calculation interval is incremented by the incremental interval × 2
n-2
for each calculation until the
maximum interval is reached. The value n is the number of calculation times.
To configure SPF calculation interval:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A
3.
Specify the SPF
calculation interval.
spf-schedule-interval maximum-interval
[ minimum-interval
[ incremental-interval ] ]
By default:
•
The maximum interval is 5
seconds.
•
The minimum interval is 50
milliseconds.
•
The incremental interval is 200
milliseconds.
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.
For a stable network, the minimum interval is used. If network changes become frequent, the LSA
generation interval is incremented by the incremental interval × 2
n-2
for each generation until the
maximum interval is reached. The value n is the number of generation times.
To configure the LSA generation interval:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPFv3 view.
ospfv3 [ process-id | vpn-instance
vpn-instance-name ] *
N/A
3.
Configure the LSA
generation interval.
lsa-generation-interval
maximum-interval [ minimum-interval
[ incremental-interval ] ]
By default, the maximum interval is 5
seconds, the minimum interval is 0
milliseconds, and the incremental
interval is 0 milliseconds.