HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 90
Specifying SPF calculation interval, is reached.
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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. Command system-view ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * spf-schedule-interval maximum-interval [ minimum-interval [ incremental-interval ] ] Remarks N/A N/A Optional. By default, the interval is 5 seconds. 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. 3. Configure the LSA arrival interval. Command system-view ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * lsa-arrival-interval interval 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. 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: 80