Layer 3 Routing Commands
1721
area range (Router OSPFv3)
Use the
area range
command in Router OSPF Configuration mode to
configure a summary prefix for routes learned in a given area. If the area has
not been previously created, this command creates the area and then applies
the range parameters. There are two types of area ranges. An area range can be
configured to summarize intra-area routes. An ABR advertises the range
rather than the specific intra-area route as a type 3 summary LSA. Also, an
area range can be configured at the edge of an NSSA to summarize external
routes reachable within the NSSA. The range is advertised as a type 5 external
LSA. Use the
no
form of the command to remove the summary prefix
configuration for routes learned in the specified area.
Syntax
area
area-id
range
ipv6-prefix/prefix-length {
summarylink
|
nssaexternallink
}
[
advertise
|
not-advertise
]
no area
area-id range ipv6-prefix/prefix-length {
summarylink
|
nssaexternallink
}
• areaid—Valid OSPFv3 area identifier.
• ipv6-prefix/prefix-length—Valid route prefix.
•
summarylink
—LSDB type
•
nssaexternallink
—LSDB type.
•
advertise
—Allows area range to be advertised.
•
not-advertise
—Suppresses area range from being advertised.
Default Configuration
This command has no default configuration.
Command Mode
Router OSPFv3 Configuration mode.
User Guidelines
The LSDB type must be specified by either
summarylink
or
nssaexternallink
,
and the advertising of the area range can be allowed or suppressed.
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