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Ospf packets, Lsa types, Specifying the lsa arrival interval – H3C Technologies H3C S12500-X Series Switches User Manual

Page 95: Specifying the lsa generation interval

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81

Step Command

Remarks

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.

211B

Specifying the LSA arrival interval

If OSPF receives an LSA that has the same LSA type, LS ID, and router ID as the previously received LSA

within the LSA arrival interval, OSPF discards the LSA to save bandwidth and route resources.
To configure the LSA arrival interval:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter OSPF view.

ospf [ process-id | router-id
router-id | vpn-instance

vpn-instance-name ] *

N/A

3.

Configure the LSA arrival
interval.

lsa-arrival-interval interval

The default setting is 1000
milliseconds.
Make sure this interval is smaller than
or equal to the interval set with the

lsa-generation-interval command.

212B

Specifying the LSA generation interval

Adjust the LSA generation interval to protect network resources and routers from being overwhelmed by

LSAs at the time of 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 × 2

n-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:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter OSPF view.

ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *

N/A

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