Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 3 OSPF Configuration Commands
3Com Corporation
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Use the undo spf-schedule-interval command to restore the default setting.
According to the Link State Database (LSDB), the router running OSPF can calculate
the shortest path tree taking itself as the root and determine the next hop to the
destination network according to the shortest path tree. By adjusting SPF calculation
interval, network frequently changing can be restrained, which may lead to that too
many bandwidth resources and router resources will be used.
Example
# Set the OSPF route calculation interval of 3Com to 6 seconds.
[3Com -ospf-1] spf-schedule-interval 6
3.1.54 stub
Syntax
stub [ no-summary ]
undo stub
View
OSPF area view
Parameter
no-summary: Only available for the ABR in Stub area. When this parameter is
selected, the ABR only advertises the Summary-LSA for the default route, but no other
Summary-LSAs. The area is also called totally stub area.
Description
Use the stub command to configure the type of an OSPF area as the STUB area.
Use the undo stub command to cancel the settings.
By default, no area is set to be the STUB area.
All the routers in a Stub area must be configured with the corresponding attribute.
Related command: default-cost.
Example
# Set the type of OSPF area 1 to the STUB area.
[3Com -ospf] area 1
[3Com -ospf-area-0.0.0.1] stub