ANALYSIS OF NETWORK TRAFFIC STRUCTURE AND NETWORK ANOMALY DETECTION IN THE LOCAL SEGMENT OF LVIV POLYTECHNIC NATIONAL UNIVERSITY CAMPUS NETWORK
Journal Title: Вісник Національного університету "Львівська політехніка", серія "Радіоелектроніка та телекомунікації" - Year 2014, Vol 796, Issue 2014
Abstract
The main objectives of this article are to analyze and propose new solution to increase network efficiency and security. New approaches to the network designs are emerging with changing of network services and network availability requirements. To create network environment that can fully support ability to freely interconnect between various devices and inside different network types (BYOD (Bring Your Own Device), Internet of Things, etc.), the new mechanism of traffic analysis and control must be developed. When discussing basic principles of this new approach, we need to take in consideration all the major challenges that this “freely interconnected” concepts are facing. The main problem will be network security and integrity. Also significantly will increase percentage of “parasite” network traffic and network anomalies occurrence. But with high traffic rates transmitted over network segments and mobility of network users that are using wireless network infrastructure, current approaches Intrusion Detection Systems (IDS), Intrusion Prevention Systems (IPS), and other network and security monitoring approaches just not flexible enough and inefficient. The future of network security and traffic control solutions lies within “smart network” concept. New types of “smart networks” need to have an ability to react autonomously on any “threat” or anomaly in network flow. This requires an algorithm that can in real time make a correct suggestion regarding current network problems. Basically the whole process will include three stages: monitoring (finding and locating certain network problem and defining its “pattern”), classification (using “pattern” that was established on previous stage classification algorithm can now find suggested source of the problem and mechanism of solving it), resolving problem (finally we can apply solution that algorithm choose to solve the problem). All this stages must be combined in one procedure that is executed by autonomous controlling unit. For decreasing158 an amount of false positives and information that needs to be proceeded, this control mechanism need to include problem detection solution that will use “critical point” method of information gathering (only collect traces and traffic patterns of certain minimum that needed to identify problem), and machine learning (to dynamically improve quality of selected solutions).
Authors and Affiliations
Vasyl Romanchuk, Serhiy Aleksieiev, Volodymyr Chervenets, Roman Kolodiy
Keywords
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