Abstract
In the modern world, most enterprises are becoming more considerate about the network availability and minimization of downtime because the demand for online applications and services has increased rapidly. This resulted in increasing demands for services that provide network availability and minimize network downtime for these businesses. The first hop redundancy protocols are protocols used to manage and maintain network default gateway router by using one or more redundant routers that will take over in case of default router failure. This paper presents a comprehensive performance analysis of First Hop Redundancy for the three main protocols most used today (HSRP, VRRP, GLBP). We investigate the impact of several factors such as convergence time, CPU utilization, Bandwidth consumption, Traffic flow and present some results. Extensive performance analyses show the main difference between the three protocols.