D-Link DXS-3600-32S CLI Guide - Page 389

area range

Page 389 highlights

DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide Use the area nssa command to simplify administration if you are connecting a central site using OSPF to a remote site that is using a different routing protocol. You can extend OSPF to cover the remote connection by defining the area between the central router and the remote router as a NSSA. For ASBR NSSA re-distribute, external routes will only be redistributed to NSSA area when redistribution is configured for the associated OSPF process. The external routes from other area within the same AS will not be injected to the NSSA area. If there are multiple default routes generated into the NSSA area, the following priority will be followed: intra-route > inter-route > external route. Users can verify the settings by entering the show ip ospf or show ip ospf area command. Example This example shows how to assign OSPF area 0.0.0.2 to be a NSSA area and leak type 7 LSA into other areas. DXS-3600-32S#configure terminal DXS-3600-32S(config)#router ospf DXS-3600-32S(config-router)#area 0.0.0.1 nssa no-summary DXS-3600-32S(config-router)#area 0.0.0.2 nssa translate DXS-3600-32S(config-router)# 40-4 area range This command is used to summarize OSPF routes at an area border router (ABR). Use the no command to remove the defined summarization of routes. area area-id range ip-address net-mask [{advertise | not-advertise}] no area area-id range ip-address net-mask Parameters area-id ip-address net-mask advertise not-advertise Specifies the area from which the routes will be summarized. The ID should be specified as an IP address. Specifies the IP address. With net-mask to inform the network segment whose routes are to be aggregated. Specifies the IP address mask. (Optional) Specifies the area range will be advertised. (Optional) Specifies the area range will not be advertised. Default Command Mode Command Default Level Usage Guideline By default no area range is configured for one area. By default advertise is specified. Router Configuration Mode. Level: 8. (EI Mode Only Command) Users can use this command on the area border router to summarize the intra-area routes. This command can be used to specify the summarized route for area 0 or for non-zero area. Multiple area range commands can be configured. Thus, OSPF can summarize addresses for multiple sets of address ranges. Users can verify the settings by entering the show ip ospf command. 381

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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide
381
40-4
area range
This command is used to summarize OSPF routes at an area border router (ABR). Use the no command to remove the
defined summarization of routes.
area
area-id
range
ip-address net-mask
[{advertise | not-advertise}]
no area
area-id
range
ip-address net-mask
Parameters
Use the
area nssa
command to simplify administration if you are connecting a
central site using OSPF to a remote site that is using a different routing protocol. You
can extend OSPF to cover the remote connection by defining the area between the
central router and the remote router as a NSSA.
For ASBR NSSA re-distribute, external routes will only be redistributed to NSSA
area when redistribution is configured for the associated OSPF process. The
external routes from other area within the same AS will not be injected to the NSSA
area.
If there are multiple default routes generated into the NSSA area, the following
priority will be followed: intra-route > inter-route > external route.
Users can verify the settings by entering the
show ip ospf
or
show ip ospf area
command.
Example
This example shows how to assign OSPF area 0.0.0.2 to be a NSSA area and leak
type 7 LSA into other areas.
DXS-3600-32S#configure terminal
DXS-3600-32S(config)#router ospf
DXS-3600-32S(config-router)#area 0.0.0.1 nssa no-summary
DXS-3600-32S(config-router)#area 0.0.0.2 nssa translate
DXS-3600-32S(config-router)#
area-id
Specifies the area from which the routes will be summarized. The ID should be
specified as an IP address.
ip-address
Specifies the IP address. With net-mask to inform the network segment whose
routes are to be aggregated.
net-mask
Specifies the IP address mask.
advertise
(Optional) Specifies the area range will be advertised.
not-advertise
(Optional) Specifies the area range will not be advertised.
Default
By default no area range is configured for one area.
By default
advertise
is specified.
Command Mode
Router Configuration Mode.
Command Default Level
Level: 8. (
EI Mode Only Command
)
Usage Guideline
Users can use this command on the area border router to summarize the intra-area
routes. This command can be used to specify the summarized route for area 0 or for
non-zero area.
Multiple area range commands can be configured. Thus, OSPF can summarize
addresses for multiple sets of address ranges.
Users can verify the settings by entering the
show ip ospf
command.