H3C Technologies H3C S12500 Series Switches - Manual (Page 104)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Specify the LSA transmission
delay.
ospf trans-delay seconds
Optional.
1 second by default.
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.
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 × 2 n-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 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. Specify the SPF
calculation interval.
spf-schedule-interval maximum-interval
[ minimum-interval
[ incremental-interval ] ]
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 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
Optional.
1000 milliseconds by
default.
Make sure this interval is
smaller than or equal to the
interval set with the
lsa-generation-interval
command.