Cisco WS-CBS3032-DEL Software Configuration Manual page 976

Configuring OSPF
Route summarization consolidates advertised addresses into a single summary route to be advertised by
other areas. If network numbers are contiguous, you can use the area range router configuration
command to configure the ABR to advertise a summary route that covers all networks in the range.
Note The OSPF area router configuration commands are all optional.
Beginning in privileged EXEC mode, follow these steps to configure area parameters:
Command
Step 1 configure terminal
Step 2
router ospf process-id
Step 3
area area-id authentication
Step 4
area area-id authentication message-digest (Optional) Enable MD5 authentication on the area.
Step 5 area area-id stub [no-summary]
Step 6
area area-id nssa [no-redistribution]
[default-information-originate]
[no-summary]
Step 7 area area-id range address mask
Step 8 end
Step 9 show ip ospf [process-id]
show ip ospf [process-id [area-id]] database
Step 10 copy running-config startup-config
Use the no form of these commands to remove the configured parameter value or to return to the
default value.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
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Purpose
Enter global configuration mode.
Enable OSPF routing, and enter router configuration mode.
(Optional) Allow password-based protection against unauthorized
access to the identified area. The identifier can be either a decimal
value or an IP address.
(Optional) Define an area as a stub area. The no-summary keyword
prevents an ABR from sending summary link advertisements into the
stub area.
(Optional) Defines an area as a NSSA. Every router within the same
area must agree that the area is an NSSA. Select one of these
keywords:
no-redistribution—Select when the router is an NSSA ABR and
•
you want the redistribute command to import routes into normal
areas but not into the NSSA.
default-information-originate—Select an ABR to allow
•
importing type 7 LSAs into the NSSA.
no-redistribution—Select to not send summary LSAs into the
•
NSSA.
(Optional) Specify an address range for which a single route is
advertised. Use this command only with area border routers.
Return to privileged EXEC mode.
Display information about the OSPF routing process in general or for
a specific process ID to verify configuration.
Display lists of information related to the OSPF database for a
specific router.
(Optional) Save your entries in the configuration file.
Chapter 39 Configuring IP Unicast Routing
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