6.2 EIGRP Features
6.2.1 EIGRP technologies
EIGRP includes many new technologies, each of which represents an improvement in operating efficiency, rapidity of convergence, or functionality relative to IGRP and other routing protocols. These technologies fall into one of the following four categories:
  • Neighbor discovery and recovery
  • Reliable Transport Protocol
  • DUAL finite-state machine
  • Protocol-specific modules

The following sections examine these technologies in detail.