Enhancement of enteprise network performance through virtual local area network implementation:
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Date
2021-09
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Kampala International University
Abstract
This study was to enhance an enterprise network performance through virtual local area network implementation by simulating an existing local area network and rectifying it using virtual local area network at Université lumière de Bujumbura, in two different scenarios (existing LAN and new LAN with VLAN implementation). The enterprise network performance at the university was unsatisfactory due to unsegmented network that cause inconsistent and unreliable network. Therefore, the study had the following objectives: To investigate the user satisfaction of the enterprise network performance, to identify the drawbacks of existing enterprise network performance, to measure the existing enterprise network performance, to rectify the drawbacks of existing enterprise network using virtual local area network, to simulate and compare the new (virtual local area network) and existing (no virtual local area network) enterprise network performance. The first objective was used questionnaire for and the end users at ULB were not satisfied with the network performance while structured interview was used in the second objective and there was unsegmented network at Université lumière de Bujumbura; And also, riverbed modeler academic edition 17.5 (OPNET) was used to get simulation results, measure and compare the network performance for both scenarios (with and without virtual local area network) in the third, fourth and fifth objectives. In third objective enterprise network components with no virtual local area network were implemented into optimized network engineering tool (OPNET) and the fourth objective was a duplicated scenario with virtual local area networkimplementation. The OPNET simulation results illustrated in third and fourth objective the minimum, average and maximum statistic data for both global and object statistics for both new (virtual local area network) and existing enterprise network without Virtual local area network technology. The simulated results for the fifth objective were comparison for both scenarios with and without virtual local area network and virtual local area networks had better performance than no virtual local area network. The global statistics results showed that virtual local area network had lower traffic and response time compared to no virtual local area network due to a segmentation of single large broadcast domain into separate broadcast domains in order to reduce and control traffic sent and received on the network and also virtual local area networks improved bandwidth utilization, power, speed and security. Virtual local area network effectively improved the network performance of the existing local area network simulated in OPNET simulator at Université lumière de Bujumbura. The study recommended that Université lumière de Bujumbura and other universities should implement virtual local area network to improve enterprise network performance, since Virtual local area network can significantly enhance the network performance as well enforce network security
Description
A research thesis submitted to the directorate of higher degrees and research in partial fulfillment of the requirements for the degree of Master of Science in Information Technology of Kampala International University
Keywords
Enteprise network, Performance, Virtual local area network, Implementation, Buerundi