Enterasys ssr-glx19-02 Guía Del Usuario

Configuration Expert lets you create aggregates to restrict the selection of routes, to 
specify whether the routes are considered to be contributors, and if the routes are 
considered to be contributors to specify route preference.

An aggregate route is a general route composed of two or more contributing routes. In the 
following figure, California is an aggregate route the SSR has learned. That aggregate 
route consists of the Santa Barbara, Monterey, and Eureka contributing routes.

The SSR can export the California aggregate route to the New York router as long as one of 
the contributing routes remain active. The New Yorker router learns the California 
aggregate route but it does not learn the individual contributing routes.

After you create aggregate export sources, aggregate destinations, and aggregate sources 
and IP route filters as discussed earlier in this chapter, you can configure aggregate 
routing policies by going through the following procedure.

Before you attempt to configure an aggregate policy, you must ensure that you 
have previously configured at least one unused Aggregate Destination and one 
unused Aggregate Source building block, as described in 

 and 

“Export Policies” on page 335

.

To configure an aggregate policy:

1.

Start Configuration Expert if you have not already done so.

2.

Open the configuration file you want to modify and then double-click that file’s 
Routing Configuration object.

3.

Double-click the IP Routing Configuration object.

4.

Double-click the IP Unicast Routing object.

5.

Double-click the Routing Policy Configuration object. 

6.

Double-click the Aggregate Policies object and click the Configure New Aggregate 
Policy object.

Configuration Expert opens the Aggregate Policy wizard.

7.

Click Next.