The overload of the servers and the resulting decrease in the Quality of Service (QoS) and performance becomes more serious as the use of Web services grows. In order to avoid this, service providers use large distributed networks of servers to attend the requests of the increasing number of visits in popular sites. OPNET (Optimum Network Performance) is used to develop a new model suitable for Osun State University, Nigeria. The mo del was then evaluated to measure the performance of the wireless local area network. The model was used for two types of applications (ftp and http) and found that among a set of other parameters response time and wireless media access delay were highly affected by the number of users per application with and without load balancing. OPNET simulation showed the impact of load balancing on wireless and wire-line network for two different types of applications.
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