Area - Huawei Quidway S3900 series Command Manual

Command Manual – Routing Protocol
Quidway S3900 Series Ethernet Switches-Release 1510
Use the undo abr-summary command to disable route aggregation on an ABR.
By default, an ABR does not aggregate routes.
This command is applicable to ABRs only and is used for route aggregation in an area.
It allows the ABR to transmit an aggregated route to other areas.
Route aggregation means that routing information is processed by an ABR, which
transmits only one route to other areas for each network segment configured with route
aggregation. You can configure multiple aggregation routes in an area so that OSPF
can aggregate multiple network segments.
Example
# Aggregate the routes in the two network segments, 36.42.10.0 and 36.42.110.0, in
OSPF area 1 into one summary route 36.42.0.0 and transmit it to other areas.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] ospf 1
[Quidway-ospf-1] area 1
[Quidway-ospf-1-area-0.0.0.1] network 36.42.10.0 0.0.0.255
[Quidway-ospf-1-area-0.0.0.1] network 36.42.110.0 0.0.0.255
[Quidway-ospf-1-area-0.0.0.1] abr-summary 36.42.0.0 255.255.0.0

3.1.2 area

Syntax
area area-id
undo area area-id
View
OSPF view
Parameter
area-id: ID of an OSPF area, which can be a decimal integer (ranging from 0 to
4294967295) or in the form of an IP address.
Description
Use the area command to enter OSPF area view.
Use the undo area command to cancel the specified area.
Example
# Enter OSPF area 0 view.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
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3-2
Chapter 3 OSPF Configuration Commands