Reference Guide

area nssa
Denes an area as a NSSA.
Syntax
area area-id nssa [default-information-originate | no-redistribution | no-
summary]
Parameters
• area-id — Enter the OSPF area ID as an IP address (A.B.C.D) or number (1 to 65535).
• no-redistribution — (Optional) Prevents the redistribute command from distributing routes into
the NSSA. Use
no-redistribution command only in an NSSA ABR.
• no-summary — (Optional) Ensures that no summary LSAs are sent into the NSSA.
Default Not congured
Command Mode ROUTER-OSPF
Usage Information The no version of this command deletes an NSSA.
Example
OS10(conf-router-ospf-10)# area 10.10.1.5 nssa
Supported Releases 10.2.0E or later
area range
Summarizes routes matching an address/mask at an area in ABRs.
Syntax
area area-id range ip-address [no-advertise]
Parameters
• area-id — Set the OSPF area ID as an IP address (A.B.C.D) or number (1 to 65535).
• ip-address — (Optional) Enter an IP address/mask in dotted decimal format.
• no-advertise — (Optional) Set the status to Do Not Advertise. The Type 3 summary-LSA is suppressed
and the component networks remain hidden from other areas.
Default Not congured
Command Mode ROUTER-OSPF
Usage Information The no version of this command disables the route summarizations.
Example
OS10(conf-router-ospf-10)# area 0 range 10.1.1.4/8 no-advertise
Supported Releases 10.2.0E or later
area stub
Denes an area as the OSPF stub area.
Syntax
area area-id stub [no-summary]
Parameters
• area-id—Set the OSPF area ID as an IP address (A.B.C.D) or number (1 to 65535).
• no-summary—(Optional) Prevents an area border router from sending summary link advertisements into the
stub area.
Default Not congured
414 Layer 3