H3C S7500 Series Ethernet Switches Command Manual

Table Of Contents
Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 3 OSPF Configuration Commands
3-1
Chapter 3 OSPF Configuration Commands
Note:
The term “router” in this document refers to a router in a generic sense or an Ethernet
switch running routing protocols.
3.1 OSPF Configuration Commands
3.1.1 abr-summary
Syntax
abr-summary ip-address mask [ advertise | not-advertise ]
undo abr-summary ip-address mask
View
OSPF area view
Parameters
ip-address: Network segment address.
mask: Network mask.
advertise: Specifies to advertise the aggregated route that match a specific IP address
and mask.
not-advertise: Specifies not to advertise the aggregated route that match a specific IP
address and mask.
Description
Use the abr-summary command to enable route aggregation on an area border router
(ABR).
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