Description: Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced routing protocol that uses a distance vector routing algorithm and is designed for use in larger networks. EIGRP combines the advantages of distance vector and link-state protocols, allowing for fast convergence and efficient bandwidth utilization. This protocol can manage multiple network protocols, making it versatile in heterogeneous environments. EIGRP uses a metric system that considers factors such as bandwidth, latency, load, and reliability, enabling more informed decision-making about which routes to take. Additionally, EIGRP implements a neighbor discovery mechanism and an efficient update process, minimizing routing traffic on the network. Its ability to perform load balancing across multiple routes and support for large networks makes it a popular choice among network administrators. In summary, EIGRP is a robust and efficient protocol that adapts well to the routing needs of complex and ever-changing network environments.
History: EIGRP was developed by Cisco Systems in 1993 as an enhancement of the Interior Gateway Routing Protocol (IGRP). Over the years, EIGRP has evolved and become an open standard, being published as RFC 7868 in 2016. This evolution has allowed its adoption in a variety of network environments beyond Cisco devices.
Uses: EIGRP is primarily used in large and complex enterprise networks where efficient routing management is required. It is ideal for organizations that need fast convergence and optimal bandwidth usage, as well as for those operating multiple network protocols.
Examples: A practical example of EIGRP can be found in a multinational company that uses multiple branches in different countries. EIGRP allows all branches to connect efficiently and communicate with each other, optimizing data traffic and ensuring quick recovery from network failures.
