Stub - 3Com 5500-EI PWR Reference Manual

<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] ospf 1
[Sysname-ospf-1] spf-schedule-interval 6

stub

Syntax
stub [ no-summary ]
undo stub
View
OSPF area view
Parameters
no-summary: Disables an ABR from transmitting Type-3 LSAs to a Stub area.
Description
Use the stub command to configure the type of an OSPF area as "Stub".
Use the undo stub command to restore the default.
By default, no area is set to a Stub area.
To configure an area as a stub area, all routers attached to it must be configured with this command. If
the router is an ABR, it will send a default route to the connected Stub area. Use the default-cost
command to configure the default route cost. In addition, you can specify the no-summary argument in
the stub command to disable the receiving of Type-3 LSAs by the Stub area connected to the ABR
(such a stub area is known as a totally stub area).
Note the following when configuring a (totally) stub area:
The backbone area cannot be a (totally) stub area.
To configure an area as a stub area, the stub command must be configured on routers in the area.
A (totally) stub area cannot have an ASBR because AS external routes cannot be distributed into
the stub area.
Virtual links cannot transit (totally) stub areas.
Related commands: default-cost.
Examples
# Set OSPF area 1 to a Stub area.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] ospf 1
[Sysname-ospf-1] area 1
[Sysname-ospf-1-area-0.0.0.1] stub
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