Cisco Systems. Building Scalable Cisco Internetworks. Volume 2. Student Guide

Cisco Systems, 2006. — 386 p.This module explains why it is necessary to manipulate routing information. During route redistribution between IP routing domains, suboptimal routing can occur without manipulation. There are also times when routing information would waste bandwidth on a router interface because routing information is not needed.
This module provides a description and examples of methods to implement the controls described above with Cisco Systems devices.