Browsing by Author "Sinshaw kalkidan"

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    Developing Optimization Model for Bandwidth Utilization Based on Network Traffic Analysis the Case of Addis Ababa University
    (Addis Ababa University, 2016-03-11) Sinshaw kalkidan; Abebe Ermias (Ato)
    Organizations make rules for their users in order to optimize network usage and network administrators control the users’ network traffic flow over the link. To have full control on activities occurring on network is essential for managing bandwidth utilization to achieve expected service quality. Managing the network is also useful for detecting attacks from malwares, intrusion, or any restricted applications accessing the network. Bandwidth is the most important thing in networking which is the line where traffic data passes through. The larger the bandwidth, the more network traffic flows in it. This study presents approaches to determine bandwidth utilization by using network traffic analysis. Monitoring traffic data helps to know the bandwidth capacity and to filter applications that make the network crowded with traffic. The ingoing and outgoing traffic is analyzed using solarwinds which is efficient for capturing data from continuous streams of network traffic and convert those raw numbers into easy to interpret charts and tables that quantify exactly how the corporate network is being used, by whom, and for what purpose. Continuously, it records ingoing and outgoing traffic from the router, core switch and firewall devices then logs the data to generate daily, weekly and monthly statistics. This study shows an effective use of network bandwidth by using network traffic analysis from three campuses of AAU and traffic data recorded from network devices at the university data center which shows the current bandwidth usage of AAU. As the experiment result shows, the bandwidth usage in the university needs to be managed to serve all the university community. Based on network traffic analysis and SARG report, bandwidth optimization model is proposed which considered bandwidth consumption in weekly and monthly within different campuses. Therefore, the ICT office has to take a measure to effectively distribute network bandwidth to campuses.