Chapter 42. Enhanced IGRP
Objectives
Identify the four key technologies employed by Enhanced IGRP (EIGRP).
Understand the Diffusing Update Algorithm (DUAL), and describe how it improves the operational efficiency of EIGRP.
Learn how to use EIGRP to interconnect networks with different routing protocols as well as different routed protocols.
Discover how it is possible to migrate gradually to EIGRP.
The Enhanced Interior Gateway Routing Protocol (EIGRP) represents an evolution from its predecessor IGRP (refer to Chapter 44, “Interior Gateway Routing Protocol”). This evolution resulted from changes in networking and the demands of diverse, large-scale internetworks. Enhanced IGRP integrates the capabilities of link-state protocols into distance vector ...
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