Proposta de melhoramento da infraestrutura de rede local. Caso de estudo: Ministério da Ciência, Tecnologia e Ensino Superior (MCTES)

Abstract

This report is the result of the culmination work of the course (professional internship) that was held at the Ministry of Science, Technology and Higher Education (MCTES) and has as its theme Proposal for Improvement of Local Network Infrastructure. Its specific objectives are to present the current scenario of the MCTES data network infrastructure, identify mechanisms for improving the performance of the data network and propose mechanisms for improving the network. In order to achieve the objectives, the methodology used for the elaboration of this work was based on a quantitative and qualitative research, which consisted in the survey of knowledge through bibliographic material and case study, in which it was possible to perceive that the segmentation and monitoring of the network are indispensable mechanisms for a good performance of the network. Segmenting the network using VLANs allows the administrator to separate the network into smaller networks, improving security, performance and mainly reducing the broadcast domain. The segmentation of the simulated network was performed in the Cisco Packet Tracer tool, the network was divided into 14 sectors of the institution, which totaled 14 VLANs. VLANs are configured on 4 switches, one core switch and the other distribution switches. In addition to segmentation, network monitoring is important, as it allows the administrator to detect failures, monitor network assets, in which the network administrator can be proactive, being able to identify problems, and act more quickly in the solution. In this work, the Zabbix management tool was suggested and presented, due to its ease of configuration and use. The research in this regard has clearly shown the numerous advantages obtained in the application of these mechanisms (segmentation and monitoring) to provide greater network performance. The results of this study will be useful for MCTES and for other institutions in general that operate in this field