Area Nssa (Ospf) - Cisco Nexus 3548 Command Reference Manual

area nssa (OSPF)

area nssa (OSPF)
To configure an area as an Open Shortest Path First (OSPF) not-so-stubby (NSSA) area, use the area
nssa command. To remove the NSSA area, use the no form of this command.
Syntax Description area-id
default-information-
originate
route-map
map-name
no-redistribution
no-summary
translate type7
always
never
suppress-fa
Command Default
None
Command Modes
Router configuration mode
Command History Release
5.0(3)A1(1)
Usage Guidelines
Use the area nssa command to create an NSSA area in an OSPF autonomous system. We recommend
that you understand the network topology before configuring forwarding address suppression for
translated LSAs. Suboptimal routing might result because there might be better paths to reach the
destination's forwarding address.
This command requires the LAN Base Services license.
Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
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area area-id nssa [default-information-originate [route-map map-name]] [no-redistribution]
[no-summary] [translate type7 [always | never] [suppress-fa]]
no area area-id nssa [default-information-originate [route-map map-name]] [no-redistribution]
[no-summary] [translate type7 [always | never] [suppress-fa]]
Identifier for the OSPF NSSA area. The area ID can be from 0 to 4294967295
or an IP address.
(Optional) Generates a Type 7 default into the NSSA area. This keyword takes
effect only on NSSA area border router (ABR) or NSSA autonomous system
border router (ASBR).
(Optional) Filters the Type 7 default generation based on the route map. The
map-name argument can be any alphanumeric string up to 63 characters.
(Optional) Blocks redistributed link-state advertisements (LSAs) from
entering this NSSA area. Use this keyword when the router is both an NSSA
ASBR and an NSSA ABR and you want the redistribute command to import
routes into the normal areas but not into the NSSA area.
(Optional) Allows an area to be an NSSA area but not have summary routes
injected into it.
(Optional) Translates Type 7 LSAs to type 5 LSAs.
(Optional) Always translates LSAs.
(Optional) Never translates LSAs.
(Optional) Suppresses the forwarding address in translated LSAs. The ABR
uses 0.0.0.0 as the forwarding IPv4 address.
Modification
This command was introduced.
Chapter Unicast Routing Commands
OL-27852-01