Reference Guide

832 | Open Shortest Path First (OSPFv2)
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Defaults
Not configured
Command Mode
ROUTER OSPF
Command
History
area range
c e s z
Summarize routes matching an address/mask at an area border router (ABR).
Syntax
area area-id range ip-address mask [not-advertise]
To disable route summarization, use the no area area-id range ip-address mask command.
Parameters
Defaults
No range is configured.
Command Modes
ROUTER OSPF
Command
History
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
default-information-or
iginate
(OPTIONAL) Allows external routing information to be imported into the
NSSA by using Type 7 default.
no-summary
(OPTIONAL) Specify that no summary LSAs should be sent into the NSSA.
Version 8.3.11.1 Introduced on Z9000
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
area-id
Specify the OSPF area in dotted decimal format (A.B.C.D.) or enter a number from
zero (0) to 65535.
ip-address
Specify an IP address in dotted decimal format.
mask
Specify a mask for the destination prefix. Enter the full mask (for example,
255.255.255.0).
not-advertise (OPTIONAL) Enter the keyword not-advertise to set the status to DoNotAdvertise
(that is, the Type 3 summary-LSA is suppressed and the component networks remain
hidden from other areas.)
Version 8.3.11.1 Introduced on Z9000
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
area stub Create a stub area.
router ospf Enter the ROUTER OSPF mode to configure an OSPF instance.