User Manual

Routing
270
M6100 Web Management User Guide
OSPF NSSA Area Configuration
 To display the OSPF NSSA Area Configuration page, click Routing > OSPF > Advanced >
NSSA Area Configuration. The following page is displayed.
 Configure the NSSA Area.
1. Enter the OSPF Area ID. An
Area ID is a 32-bit integer in dotted decimal format that
uniquely identifies the area to which a router interface connects.
2. Configure the Import Summary LSAs by selecting Enable or Disable from the list. If you
select Enable, summary LSAs will be imported into NSSA areas.
3. Configure the Default Information Originate — The default Route Information. This option
permits you to advertise a default route into the NSSA when Import Summary LSAs is
disabled.
This can also be applied by the CLI command area (area-id) NSSA
default-info-originate in the IP router OSPF config mode.
a. In the Admin
Mode list, select to Enable or Disable the default information originate.
b. In the Metric V
alue field, set the default metric value for default information
originate. The value range of values is 1 to 16777214.
c. In the Metric T
ype field, select the type of metric specified in the Metric Value field.
Options are:
• Comparable Cost — External Type 1 metrics that are comparable to the OSPF
metric.
• Non-comparable Cost — External Type 2 metrics that are assumed to be larger
than the cost of the OSPF metric.
4. Select the T
ranslator Role of the NSSA. Options are:
a. Always — Cause the router to assume the role of the translator the instant it becomes
a border router
.