Command Reference Guide

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OSFP Area Index configuration
The following table describes the Area Index Configuration commands.
Table 133 OSPF Area Index Configuration commands
Command
Description
area <0-2> area-id <A.B.C.D>
Defines the area ID of the OSPF area number.
Command mode: Router OSPF
area <0-2> type
{transit|stub|nssa}
Defines the type of area. For example, when a virtual link has to
be established with the backbone, the area type must be
defined as transit.
Transit: allows area summary information to be exchanged
between routing devices. Any area that is not a stub area
or NSSA is considered to be transit area.
Stub: is an area where external routing information is not
distributed. Typically, a stub area is connected to only one
other area.
NSSA: Not-So-Stubby Area (NSSA) is similar to stub area with
additional capabilities. For example, routes originating from
within the NSSA can be propagated to adjacent transit
and backbone areas. External routes from outside the
Autonomous System (AS) can be advertised within the
NSSA but are not distributed into other areas.
The default is transit.
Command mode: Router OSPF
area <0-2> stub-metric <1-65535>
Configures a stub area to send a numeric metric value. All
routes received via that stub area carry the configured metric
to potentially influencing routing decisions.
Metric value assigns the priority for choosing the switch for
default route. Metric type determines the method for
influencing routing decisions for external routes. The default
value is 1.
Command mode: Router OSPF
[no] area <0-2> authentication-
type {password|md5}
Defines the authentication method, as follows:
no: No authentication required.
password: Authenticates simple passwords so that only
trusted routing devices can participate.
MD5: This parameter is used when MD5 cryptographic
authentication is required.
The default is none.
Command mode: Router OSPF
area <0-2> spf-interval <1-255>
Sets time interval between two successive SPF (shortest path
first) calculations of the shortest path tree using the Dijkstra‘s
algorithm.The default value is 10.
Command mode: Router OSPF
area <0-2> enable
Enables the OSPF area.
Command mode: Router OSPF
no area <0-2> enable
Disables the OSPF area. This is the default.
Command mode: Router OSPF
no area <0-2>
Deletes the OSPF area.
Command mode: Router OSPF
show ip ospf area <0-2>
Displays the current OSPF configuration.
Command mode: All