3.1 Routing
3.1.6 Hybrid routing: EIGRP
Cisco's proprietary EIGRP is an advanced distance-vector protocol that also employs the best features of link-state routing. For the most part, EIGRP configuration is similar to configuring a simple distance-vector protocol such as IGRP. However, like their link-state counterparts, EIGRP routers use partial updates, special neighbor relationships, and topological databases to provide optimal convergence. Sometimes called a hybrid protocol, EIGRP is discussed thoroughly in Chapter 6.