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Computer application for measuring parameters of network
Kolmačka, Tomáš ; Urban, František (referee) ; Grenar, David (advisor)
This bachelor’s thesis deals with the basic theory of network architecture TCP/IP which is used in practice and sets out the key parameters for data services and multimedia services using these networks. The thesis mainly deals with the methodology of measuring individual parameters and analyzes various methods of measurement and the accuracy of these methods. In the practical part of the bachelor's thesis a client-server mode application called Network Meter was programmed. This application allows the measurement of selected parameters between client and server using transport protocols TCP and UDP. When using TCP, the application can measure delay, data upload speed and data download speed. When using the second transport protocol, namely UDP, the application can measure jitter and packet loss. With the measuring application Network Meter test measurements were performed in the prepared home network. In the same network measurements were made using jPerf to compare the created application with other applications. In the comparison measurement download speed was measured.
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Network infrastructure design
Tobolka, Lukáš ; Člupek, Vlastimil (referee) ; Zeman, Václav (advisor)
The aim of this diploma thesis is to look at the design of network infrastructure in practice. There are individual procedures, brands, standards that must be followed when designing. It includes a brief general overview of terminal elements, cable systems and related matters. In general, methods for measuring optical lines and parameters for measuring metallic networks are described here. The possible complications that accompany it are briefly described in the implementation. The network design methodology is also described here on the example of a specific object. Before the actual handover of the work, the entire infrastructure is analyzed and measured with output protocols within the certification of the entire system together with outputs in the form of a measurement protocol.
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Simulated Fault-Injection in Network Communication
Rozsíval, Michal ; Rogalewicz, Adam (referee) ; Smrčka, Aleš (advisor)
The development of network applications takes place under ideal conditions, as opposed to deploying them in a real-world environment that contains vulnerabilities such as loss, latency, or cyber-attacks. Ensuring resilience against these vulnerabilities is thus crucial. This thesis introduces the NetLoiter, which aims to enable the simulation of the required vulnerabilities and thus allow developers to treat them correctly. The NetLoiter can be used in transparent (proxy server), hidden (captures communication directly from the system kernel), or hardware versions suitable for testing embedded systems. NetLoiter supports dynamic reconfiguration using a public interface that can be used to automate the testing process. NetLoiter has been successfully integrated and used in real projects.
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Network infrastructure design
Tobolka, Lukáš ; Člupek, Vlastimil (referee) ; Zeman, Václav (advisor)
The aim of this diploma thesis is to look at the design of network infrastructure in practice. There are individual procedures, brands, standards that must be followed when designing. It includes a brief general overview of terminal elements, cable systems and related matters. In general, methods for measuring optical lines and parameters for measuring metallic networks are described here. The possible complications that accompany it are briefly described in the implementation. The network design methodology is also described here on the example of a specific object. Before the actual handover of the work, the entire infrastructure is analyzed and measured with output protocols within the certification of the entire system together with outputs in the form of a measurement protocol.
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Computer application for measuring parameters of network
Kolmačka, Tomáš ; Urban, František (referee) ; Grenar, David (advisor)
This bachelor’s thesis deals with the basic theory of network architecture TCP/IP which is used in practice and sets out the key parameters for data services and multimedia services using these networks. The thesis mainly deals with the methodology of measuring individual parameters and analyzes various methods of measurement and the accuracy of these methods. In the practical part of the bachelor's thesis a client-server mode application called Network Meter was programmed. This application allows the measurement of selected parameters between client and server using transport protocols TCP and UDP. When using TCP, the application can measure delay, data upload speed and data download speed. When using the second transport protocol, namely UDP, the application can measure jitter and packet loss. With the measuring application Network Meter test measurements were performed in the prepared home network. In the same network measurements were made using jPerf to compare the created application with other applications. In the comparison measurement download speed was measured.
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