Specifying spf calculation interval, Specifying the lsa generation interval – H3C Technologies H3C S5560 Series Switches User Manual

Page 392

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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.

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