Cisco's Enhanced Interior Gateway Routing Protocol (EIGRP)
This document describes the protocol design and architecture for Enhanced Interior Gateway Routing Protocol (EIGRP) EIGRP is a routing protocol based on Distance Vector technology. The specific algorithm used is called "DUAL" a Diffusing Update Algorithm as referenced in "Loop Free Routing Using Diffusing Computations" (Garcia Luna Aceves 1993) The algorithm and procedures were researched, developed, and simulated by SRI International.
RFC