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3Com Switch 7750 Series
Command Reference Guide – Routing Protocol Chapter 3 OSPF Configuration Commands
3-6
Parameter
seconds: Default interval, in seconds, of importing external routes. It ranges from 1 to
2147483647 and defaults to 1.
Description
Use the default interval command to configure the default interval for OSPF to
import external routes.
Use the undo default interval command to restore the default value of the default
interval of importing external routes.
OSPF can import external routing information and propagate it to the entire
autonomous system. However, importing routes too often greatly affects the
performance of the device. Therefore, it is necessary to specify the default interval for
the protocol to import external routes.
Example
# Specify the default interval for OSPF to import external routes as 10 seconds.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] ospf 1
[3Com-ospf-1] default interval 10
3.1.7 default limit
Syntax
default limit routes
undo default limit
View
OSPF view
Parameter
routes: Default limit on the number of external routes imported in a unit time. It ranges
from 200 to 2147483647 and defaults to1000.
Description
Use the default limit command to configure the default limit on the number of routes
imported by OSPF in a unit time.
Use the undo default limit command to restore the default value.
OSPF can import external routing information and advertise them to the whole AS.
Importing too many external routes at a time greatly affects the performance of the