Reference Guide

Open Shortest Path First (OSPFv2 and OSPFv3) | 1009
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
c e s
Configure a stub area, which is an area not connected to other areas.
Syntax
area area-id stub [no-summary]
To delete a stub area, enter no area area-id stub.
Parameters
Defaults
Disabled
Command Modes
ROUTER OSPF
Command
History
Usage
Information
Use this command to configure all routers and access servers within a stub.
Related
Commands
area virtual-link
c e s
Set a virtual link and its parameters.
Syntax
area area-id virtual-link router-id [[authentication-key [encryption-type] key] |
[message-digest-key keyid md5 [encryption-type] key]] [dead-interval seconds]
[hello-interval seconds] [retransmit-interval seconds] [transmit-delay seconds]
To delete a virtual link, use the no area area-id virtual-link router-id command.
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
area stub Create a stub area.
router ospf Enter the ROUTER OSPF mode to configure an OSPF instance.
area-id
Specify the stub area in dotted decimal format (A.B.C.D.) or enter a number from zero
(0) to 65535.
no-summary (OPTIONAL) Enter the keyword no-summary to prevent the ABR from sending
summary Link State Advertisements (LSAs) into the stub area.
Version 7.8.1.0 Introduced support for Multi-Process OSPF.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.1.1.1 Introduced on E-Series
router ospf Enter the ROUTER OSPF mode to configure an OSPF instance.