Propuesta de rediseño de la red inalámbrica local en la matriz de la empresa SEDEMI

Abstract

The accelerated technological change has favored the rise and use of wireless networks in both homes and businesses due to the need for user mobility. All this required an adequate design both in network infrastructure and network configurations. It is for this reason that we proposed to analyze the wireless network of the company SEDEMI, the same that presents certain problems both at the level of equipment, network and configuration that have been made evident by the employees of the company. As a result of the analysis with heat maps in the initial state, a critical zone was detected which presented intermittency due to the lack of signal, having an average of -75.32 dBm when the optimum is that it is in the range of -30 dBm to 60 dBm. In conjunction with this analysis the packet loss was evaluated in the initial state in order to determine the quality of service provided by the wireless network specifically when using the Microsoft Teams application, using a Microsoft's own analysis tool was determined an average packet loss of 4%, taking into account that each lost packet is critical in a call this represents that the QoS configurations are nonexistent. One of the problems it presented is intermittency at certain points of the matrix, having an average signal level in a building of -75.32 dBm, additionally it lacks QoS configurations, for this reason in its initial state there was an average loss rate of 4% in UDP packets. The main objective is to redesign the network through an analysis of the current state and then propose the appropriate configurations to the APs, thus it was decided to configure a captive portal in the perimeter firewall SOPHOS brand with this is achieved that network administrators have the proper control both in security and access. The use of the TOP-DOWN methodology focused on the user's needs was proposed, making a logical and physical typology design using Cisco's three-layer hierarchical model. Additionally, equipment was budgeted to be implemented in the redesign proposal, as well as taking into account the existing network devices. According to the study conducted on the wireless network, it is concluded that if it is decided to implement the redesign, an improvement in average signal level of -55 dBm and a reduction in packet detriment of 7.5% will be obtained.