Determining IP Routes

Chapter Description

Learn how to decide which router is best for your needs. You will also see the basic functions of routers to aid you in your decision.

Hybrid Routing Protocols

Enhanced IGRP (EIGRP) is a hybrid routing protocol developed by Cisco. EIGRP makes decisions based on metric information it receives from neighbors, and it employs some of the mechanisms of link-state protocols. It establishes adjacencies with neighboring routers, sends only changes in its updates, and keeps a topology database of the network. EIGRP uses Diffusing Update Algorithm (DUAL) to achieve rapid convergence, conserve bandwidth, and support multiple network protocols.