There are several factors contribute to the decline of network performance, which their indications can be observed from quality changes in Quality of Service (QoS) parameters measurement result. This research proposes recommendations in improving network performance towards the changes of QoS parameters quality. | International Journal of Computer Networks and Communications Security VOL. 3, NO. 2, FEBRUARY 2015, 48–53 Available online at: E-ISSN 2308-9830 (Online) / ISSN 2410-0595 (Print) The Impact of QoS Changes towards Network Performance WINARNO SUGENG1, JAZI EKO ISTIYANTO2, KHABIB MUSTOFA3 and AHMAD ASHARI4 1 Itenas, Informatics Engineering Department, BANDUNG, INDONESIA 2, 3, 4 UGM, Computer Science Program, YOGYAKARTA, INDONESIA E-mail: , 2jazi@, 3khabib@, 4ashari@ ABSTRACT Degrading or declining network performance in an installed computer network system is the most undesirable condition. There are several factors contribute to the decline of network performance, which their indications can be observed from quality changes in Quality of Service (QoS) parameters measurement result. This research proposes recommendations in improving network performance towards the changes of QoS parameters quality. Keywords: Network Performance, Quality Parameters, QoS Changes, Network Recommendation. 1 INTRODUCTION At the time talked about the Reliability of a system supporting network devices (network infrastructure). The main factors that influence it is Availability, Performance and Security, the relationship of these factors are as shown in Figure 1 [6]. Fig. 1, The formula for the achievement of reliability Availability, availability of a service system must be maintained 24 hours straight without stopping to not be affected by the weather, working hours, holidays, leave employees, power outages, and so on, where the services and resources should be made available without interruption. Performance, Performance of the service system is strongly influenced by the device used, from the core, distribution, access must be maintained not to occur failure and cause downtime for classical problems such as uncompatible, crashes, hangs, the lack of hardware support and technical services, and so on . Security, .
