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Impact of Communication Parameters on Energy Consumption of Zigbee Devices
Popelka, Jan ; Červenka, Vladimír (referee) ; Šimek, Milan (advisor)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with measured results and discharge characteristics of the battery packs are included in the final chapters of this work.
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Modelling of L2 Loop-Preventing Protocols
Hrnčiřík, Matej ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
This thesis informs about currently used technologies, which provide loop protection on data link layer of computer networks. It clarifies issues of Ethernet networks. Chosen protocols are then closely described. There are presented advantages and disadvantages of chosen protocols and they are compared to other technologies. Practical section describes the initial implementation of IS-IS in OMNeT++ environment, which serves as the basic building block of TRILL protocol. An important issue is to verify correctness of implementation.
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Small Computer Network Design
Bátora, Peter ; Jordán, Vilém (referee) ; Ondrák, Viktor (advisor)
The aim of this thesis is to analyse the current state of the computer network of the company and its requirements to improve the network, then to propose necessary changes and how they are going to be implemented. The work will also be a description of the appropriate network components, technology selection, and implementation process.
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Ethernet for metallic cables
Víteček, Aleš ; Člupek, Vlastimil (referee) ; Zeman, Václav (advisor)
The bachelor thesis "Ethernet for Metallic Cables" deals with the analysis of Ethernet technology, the most used technology for running computer networks. Specifically, it is focused on transmission via metallic line. The aim of this thesis is description of technology, research of the latest Ethernet standards, including the latest categories of metallic lines. Laboratory tasks and its implementation are described below. This thesis also contains a detailed lab instructions and reference values.
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Implementation of ethernet communication inteface into FPGA chip
Skibik, Petr ; Fujcik, Lukáš (referee) ; Bohrn, Marek (advisor)
The thesis deals with the implementation of Ethernet-based network communication interface into FPGA chip. VHDL programming language is used for description of the hardware. The interface includes the implementation of link-layer Ethernet protocol and network protocols such as IPv4, ARP, ICMP and UDP. The final design allows bi-directional communication on the transport-layer level of TCP/IP model. The designed interface was implemented into Virtex5 FPGA chip on development board ML506 by Xilinx.
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Link layer LAN network security
Sedláček, Jiří ; Grenar, David (referee) ; Slavíček, Karel (advisor)
The bachelor‘s thesis is about security concerning local area networks of the data link layer. The goal of the thesis is to characterize basic functioning of the ISO/OSI reference model as well as describing how the data link layer works to understand the topic, specify the possibilities of attacking the data link layer (for example rogue DHCP server, ARP spoofing, CAM table overflow, attacking the spanning tree protocol and others) and possible security measures to protect against the attacks. The purpose of the thesis is also a suggestion for assembling an experimental network relating to the topic of the thesis. Theoretical part determines the most important protocols of the data link layer, methods of abusing them and protection of those protocols. The practical part contains a brief description of the attacks, used utilities for accomplishing the attacks, a network topology, execution of the attacks, detection and protection against the attacks as well as briefly summarizing the results. The thesis also sums up some of the possible recommended configuration to repel the attacks and suggesting how to behave in a cyber environment. For the purpose of simulating the attacks, Kali Linux and Windows 10 are the operating systems that were used the most in this thesis.
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Impact of Communication Parameters on Energy Consumption of Zigbee Devices
Popelka, Jan ; Červenka, Vladimír (referee) ; Šimek, Milan (advisor)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with the measured results, the discharge characteristics of the battery packs and lifetime broadcasting node is contained in the final chapters of this work.
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Link layer LAN network security
Sedláček, Jiří ; Grenar, David (referee) ; Slavíček, Karel (advisor)
The bachelor‘s thesis is about security concerning local area networks of the data link layer. The goal of the thesis is to characterize basic functioning of the ISO/OSI reference model as well as describing how the data link layer works to understand the topic, specify the possibilities of attacking the data link layer (for example rogue DHCP server, ARP spoofing, CAM table overflow, attacking the spanning tree protocol and others) and possible security measures to protect against the attacks. The purpose of the thesis is also a suggestion for assembling an experimental network relating to the topic of the thesis. Theoretical part determines the most important protocols of the data link layer, methods of abusing them and protection of those protocols. The practical part contains a brief description of the attacks, used utilities for accomplishing the attacks, a network topology, execution of the attacks, detection and protection against the attacks as well as briefly summarizing the results. The thesis also sums up some of the possible recommended configuration to repel the attacks and suggesting how to behave in a cyber environment. For the purpose of simulating the attacks, Kali Linux and Windows 10 are the operating systems that were used the most in this thesis.
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Impact of Communication Parameters on Energy Consumption of Zigbee Devices
Popelka, Jan ; Červenka, Vladimír (referee) ; Šimek, Milan (advisor)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with measured results and discharge characteristics of the battery packs are included in the final chapters of this work.
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Ethernet for metallic cables
Víteček, Aleš ; Člupek, Vlastimil (referee) ; Zeman, Václav (advisor)
The bachelor thesis "Ethernet for Metallic Cables" deals with the analysis of Ethernet technology, the most used technology for running computer networks. Specifically, it is focused on transmission via metallic line. The aim of this thesis is description of technology, research of the latest Ethernet standards, including the latest categories of metallic lines. Laboratory tasks and its implementation are described below. This thesis also contains a detailed lab instructions and reference values.
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