Cisco Nexus 3548 User Manual

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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
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.
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]]
Syntax Description
Command Default None
Command Modes Router configuration mode
Command History
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.
area-id Identifier for the OSPF NSSA area. The area ID can be from 0 to 4294967295
or an IP address.
default-information-
originate
(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).
route-map
map-name
(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.
no-redistribution (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.
no-summary (Optional) Allows an area to be an NSSA area but not have summary routes
injected into it.
translate type7 (Optional) Translates Type 7 LSAs to type 5 LSAs.
always (Optional) Always translates LSAs.
never (Optional) Never translates LSAs.
suppress-fa (Optional) Suppresses the forwarding address in translated LSAs. The ABR
uses 0.0.0.0 as the forwarding IPv4 address.
Release Modification
5.0(3)A1(1) This command was introduced.

Cisco Nexus 3548 Specifications

General

Rack Units	1RU
Product Type	Switch
Form Factor	Rack-mountable
Jumbo Frame Support	9216 bytes
Input Voltage	100-240 VAC
Product Series	Nexus 3000
Model	Nexus 3548
Operating System	Cisco NX-OS
Ports	48 x 10GE SFP+
Latency	190 ns
Airflow	Front-to-back