Area Nssa - Juniper JUNOSE 11.1.X - COMMAND REFERENCE A TO M 4-9-2010 Command Reference Manual

JUNOSe 11.1.x Command Reference Guide A to M

area nssa

[ no ] area { areaId | areaIdInt } nssa [ default-information-originate [ always |
Syntax
metric absoluteValue | metric-type 1 | metric-type 2 | route-map mapTag ]* ]
[ no-summary ]
Command introduced before JUNOSe Release 7.1.0.
Release Information
no-summary keyword added in JUNOSe Release 7.2.0.
Configures an area as an NSSA and controls generation of type 7 default LSAs. NSSAs
Description
are similar to stub areas but have the additional capability of importing AS external
routes in a limited fashion. The no version removes the specified option for
default-information-originate, removes default-information-originate, or removes the
NSSA designation from the area.
Options
Router Configuration
Mode
130
area nssa
areaId OSPF area ID in IP address format
areaIdInt OSPF area ID as a decimal value in the range 0–4294967295
default-information-originate Causes the generation of a type 7 default LSA if
a default route exists in the routing table.
always Creates the default route if it does not exist
absoluteValue Metric applied to the generated type 7 default LSAs; ranges from
0–4294967295
metric-type 1 Cost of the external routes is equal to the sum of all internal costs
and the external cost
metric-type 2 Cost of the external routes is equal to the external cost alone;
this is the OSPF default
mapTag String of up to 32 alphanumeric characters that specifies a route map
applied to the generated type 7 default LSAs
* Indicates that one or more parameters can be repeated multiple times in a
list in the command line
no-summary Restricts T3 summary LSAs from flowing into the NSSA area (T7
external LSAs and T3 default route LSAs are still injected into the area)