Table 539 Area Command; Table 540 Area-Range Command; Area - Nokia 7302 Manual

Virtual Private Routed Network Service
7.10.10.2
Table 539
7.10.10.3
Table 540
(1 of 2)
522

area

area command
Item Description
Syntax [no] area area-id
Context configure>service>vprn>ospf
Description This command creates the context to configure an OSPF area. An area is a collection of
network segments within an AS that have been administratively grouped together. The area
ID can be specified in dotted decimal notation or as a 32-bit decimal integer.
The no form of the command deletes the specified area from the configuration. Deleting the
area also removes the OSPF configuration of all the interfaces, address-ranges, and so on,
that are currently assigned to this area.
Default no area — No OSPF areas are defined.
Parameters area-id — The OSPF area ID expressed in dotted decimal notation or as a 32-bit decimal
integer.
Values: 0.0.0.0 — 255.255.255.255 (dotted decimal)
0 — 4294967295 (decimal integer)
area-range
area-range command
Item Description
Syntax area-range ip-prefix/mask [advertise | not-advertise]
no area-range ip-prefix/mask
Context configure>service>vprn>ospf>area
configure>service>vprn>ospf>area>nssa
Description This command creates ranges of addresses on an Area Border Router (ABR) for the purpose
of route summarization or suppression. When a range is created, the range is configured to be
advertised or not advertised into other areas. Multiple range commands may be used to
summarize or hide different ranges. In the case of overlapping ranges, the most specific range
command applies.
ABRs send summary link advertisements to describe routes to other areas. To minimize the
number of advertisements that are flooded, you can summarize a range of IP addresses and
send reachability information about these addresses in an LSA.
The no form of the command deletes the range (non) advertisement.
Default no area-range — No range of addresses are defined.
Special cases NSSA Context — In the NSSA context, the option specifies that the range applies to external
routes (via type-7 LSAs) learned within the NSSA when the routes are advertised to other
areas as type-5 LSAs.
Area Context — If this command is not entered under the NSSA context, the range applies to
summary LSAs even if the area is an NSSA.
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