Chapter 44. Interior Gateway Routing Protocol
Objectives
Identify the metrics that IGRP uses to compare routes.
Explain how an administrator can influence route selection.
Understand multipath routing.
Identify IGRP's native stability features.
Identify IGRP's timing mechanisms and explain their purpose.
Background
The Interior Gateway Routing Protocol (IGRP) is a routing protocol that was developed in the mid-1980s by Cisco Systems, Inc. Cisco's principal goal in creating IGRP was to provide a robust protocol for routing within an autonomous system (AS). Such protocols are known as Interior Gateway Routing Protocols.
In the mid-1980s, the most popular Interior Gateway Routing Protocol was the Routing Information Protocol (RIP). Although RIP was quite ...
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