User's Manual

Table Of Contents
436
Users Manual of CS-6306R
45.2.3.5 Disabling Automatic Route summary
The automatic collection of BEIGRP is different from that of other dynamic routing protocols. It complies with
the following regulations:
When multiple networks in a BEIGRP process are defined, a summary route of the defined network is
generated if at least one subnet of the network is in the BEIGRP topology table.
The created summary route is oriented to the Null0 interface has the minimum distance of all subnets.
The summary route is also added to the main IP routing table. Its management distance is 5 (which
cannot be configured).
When the update information is sent to neighbors in different main IP networks, the subnet of the
summary route of rule 1 and rule 2 is canceled. Only the summary route is sent.
Subnets that do not belong to any network defined in the BEIGRP procedure are not be collected.
In some network conditions, you may hope to notify neighbors of each detailed route. In this case, you need
run the following command:
Command Purpose
no auto-summary
Disables the automatic routing summary.
45.2.3.6 Customizing Routing summary
When the automatic routing summary cannot meet the requirements, you can configure routing summary on
every interface where BEIGRP runs, and specify the destination network segments that are to perform routing
summary. The interfaces where routing summary is configured will not send any detailed routing update
information that belongs to the routing summary network segment. Other interfaces do not get affected.
The routing summary operations comply with the following regulations:
After a routing summary command is configured on an interface, a summary route of the defined
network is generated if at least one subnet of the network is in the BEIGRP topology table.
The created summary route is oriented to the Null0 interface has the minimum distance of all subnets.
The summary route is also added to the main IP routing table. Its management distance is 5 (which
cannot be configured).
When the routing update information is sent on the interface where routing summary is configured, the
detailed routes belonging to routing summary network segment are to cancelled. Other routing update
information will not be affected.
Command Purpose
ip beigrp summary-address ip
address address mask
Configures routing summary on the
interface.