Content

| 3.1 |  | Routing |
| 3.1.6 |  | Hybrid routing protocol: EIGRP |

The proprietary EIGRP offered by Cisco is an advanced distance vector protocol that 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. EIGRP, which is sometimes referred to as a hybrid protocol, is discussed in Module 5.

| Web Links The IP Routing Protocols http://www.cisco.com/univercd/cc/td/doc/product/ software/ssr90/rpc_r/54043.htm