BSCI Exam Cram™ 2 (Exam 642-801)

EIGRP Features and Operation

EIGRP is rooted in the Cisco-compatible and adaptable nature of the distance-vector protocol IGRP. EIGRP offers several improvements and enhancements over IGRP, which make EIGRP a good choice for newer, growing network implementations. The opportunity for a reduction in bandwidth utilization is a primary benefit. EIGRP, like Open Shortest Path First (OSPF), uses multicast addresses as opposed to broadcast packets to propagate most of the operational traffic. EIGRP also has advantages that are due to its link-state behavior; for instance, EIGRP also offers route summarization at any bit position and route redistribution from other protocols. The algorithm used by EIGRP to provide a loop-free environment is called the ...