Reference Guide
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.1
Introduced on the E-Series.
Usage 
Information
Only the routes within an area are summarized, and that summary is advertised to other areas 
by the ABR. External routes are not summarized.
Related 
Commands
area stub — creates a stub area.
router ospf — enters ROUTER OSPF mode to configure an OSPF instance.
area stub
Configure a stub area, which is an area not connected to other areas.
S4820T
Syntax
area area-id stub [no-summary]
To delete a stub area, use the no area area-id stub command.
Parameters
area-id
Specify the OSPF area in dotted decimal format (A.B.C.D.) or enter a 
number from zero (0) to 65535.
no-summary (OPTIONAL) Enter the keywords no-summary to prevent the ABR 
from sending summary Link State Advertisements (LSAs) into the stub 
area.
Defaults Disabled.
Command Modes ROUTER OSPF
Command History
This guide is platform-specific. For command information about other platforms, refer to the 
relevant 
FTOS Command Line Reference Guide
.
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Added support for the Multi-Process OSPF.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version 
6.1.1.1
Introduced on the E-Series.
Usage 
Information
To configure all routers and access servers within a stub, use this command.
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