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OSPF
3
IP
6 C
V
FOR
V
OMMANDS
(IP
6 OSPF)
AREA RANGE
V
area range (IPv6 OSPF)
Overview
Use this command to summarize OSPFv3 routes at an area boundary, configuring
an IPv6 address range which consolidates OSPFv3 routes. By default, this feature is
not enabled.
A summary route created by this command is then advertised to other areas by the
Area Border Routers (ABRs). In this way, routing information is condensed at area
boundaries and outside the area so that routes are exchanged between areas in an
efficient manner.
If the network numbers in an area are arranged into sets of contiguous routes, the
ABRs can be configured to advertise a summary route that covers all the individual
networks within the area that fall into the specified range.
The no variant of this command disables this function and restores default
behavior.
area <area-id> range <ipv6address/prefix-length>
Syntax
[advertise|not-advertise]
no area <area-id> range <ipv6address/prefix-length>
Default
The area range is not configured by default. The area range is advertised if it is
configured.
Mode
Router Configuration
Usage
You can configure multiple ranges on a single area with multiple instances of this
command, so OSPFv3 summarizes addresses for different sets of IPv6 address
ranges.
C613-50103-01 REV A
Parameter
Description
<area-id>
The OSPFv3 area that you summarizing the routes for. Use one of
the following formats: This can be entered in either dotted
decimal format or normal decimal format.
<A.B.C.D>
<0-4294967295>
For example the values 0.0.1.2 and decimal 258 would both
define the same area-ID.
<ip-addr/
The IPv6 address uses the format X:X::X:X/Prefix-Length. The
prefix-length>
prefix-length is usually set between 0 and 64.
advertise
Advertise this range as a summary route into other areas.
not-advertise
Do not advertise this range.
Command Reference for x310 Series
AlliedWare Plus™ Operating System - Version 5.4.6-1.x
OSPF area-ID expressed in IPv4 address
format A.B.C.D.
OSPF area-ID expressed as a decimal
number within the range shown.
976
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