This document discusses the introduction and configuration of the EIGRP routing protocol. It explains that EIGRP maintains three tables: the neighbor table, topology table containing feasible successors, and routing table containing successor routes. The document also mentions debugging and troubleshooting tools for EIGRP including variance, debug ip eigrp, and show ip EIGRP neighbors. Finally, it defines advertised distance and feasible distance metrics and indicates there will be hands-on labs for configuring EIGRP.