NetHealth: ett system som automatiskt självläker felkonfigurationer i nätverket : Skapande av ett system som automatiskt upptäcker och åtgärdar felkonfigurationer i passiva optiska nätverk

Over time, the amount of networking equipment has increased exponentially. As the networks grow, so does the complexity of managing them. Numerous errors and misconfigurations can appear in a network over its lifetime at any given time. Detecting and correcting those as soon as possible is a priority for many businesses. In this thesis, a new network automation system called NetHealth is presented. It can actively monitor failures and misconfigurations that can occur across multiple networks at any time. In the case of misconfigurations, it effectively corrects them according to the original intended state. Also, a network simulator called FakeNOS and a chaos engine that randomly creates failures and misconfigurations have been developed to test the system’s response under a controlled chaotic environment. The results prove that NetHealth can detect failures in under 5 minutes and resolve misconfigurations in less than 3 minutes. Although it only works in Passive Optical Network (PON) as of today, it has been designed so it can be easily extended to any other network. Moreover, a significant contribution of this thesis is all the statistics of the libraries used to connect to the devices and the developed tools to test the systems, such as the chaos engine and the FakeNOS network simulator.