This is the latest in a set of useful postings (Chapters) describing routing: Elguapo's Guide to Routing - Part 4, OSPF || kuro5hin.org
Chapter 1 was an introduction. Chapter 2 was RIP. Chapter 3 was BGP. Chapter 5 will be the Interior Gateway Routing Protocol (IGRP). Chapter 6 will be the Enhanced Interior Gateway Routing Protocol (EIGRP). Chapter 7 will be the Intermediate System to Intermediate System protocol.