R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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incremental-interval: Incremental value in milliseconds, in the range of 10 to 60000, which defaults to
5000.
Description
Use spf-schedule-interval to set the OSPF SPF calculation interval.
Use undo spf-schedule-interval to restore the default.
The interval defaults to 5 seconds.
Based on its LSDB, an OSPF router calculates the shortest path tree with itself being the root, and uses it
to determine the next hop to a destination. Through adjusting the SPF calculation interval, you can protect
bandwidth and router resources from being over-consumed due to frequent network changes.
With this command configured, when network changes are not frequent, SPF calculation applies at the
minimum-interval. If network changes become frequent, the SPF calculation interval is incremented by the
incremental-interval each time a calculation happens, up to the maximum-interval.
Examples
# Configure the SPF calculation maximum interval as 10 seconds, minimum interval as 500 milliseconds
and incremental interval as 200 milliseconds.
<Sysname> system-view
[Sysname] ospf 100
[Sysname-ospf-100] spf-schedule-interval 10 500 200
stub (OSPF area view)
Syntax
stub [ default-route-advertise-always | no-summary ]
undo stub
View
OSPF area view
Default level
2: System level
Parameters
default-route-advertise-always: Usable only on a stub ABR. With this keyword configured, the ABR
advertises a default route in a Type-3 LSA into the stub area regardless of whether FULL-state neighbors
exist in the backbone area. Without this keyword, the ABR advertises a default route in a Type-3 LSA into
the stub area only when at least one FULL-state neighbor exists in the backbone area.
no-summary: Usable only on a stub ABR. Without this keyword, the ABR advertises only a default route
in a Summary LSA into the stub area (such a stub area is a totally stub area).
Description
Use stub to configure an area as a stub area.
Use undo stub to remove the configuration.
No area is stub area by default.
To cancel default-route-advertise-always or the no-summary configuration on the ABR, execute the stub
command again to overwrite it.