|
| |
|
|
DMA Controller and Network Interface Card Driver for COMBO2 Platform
Kaštovský, Petr ; Kořenek, Jan (referee) ; Martínek, Tomáš (advisor)
There is a family of COMBO cards used for netork monitoring acceleration being developed on the Liberouter project, which is the CESNET's research activity. These cards are equipped with Xilinx's programmable field array. To enable usage of classic tools for network monitoring and management, not only application specific tools, it is necessary to implement network interface card on the platform, that realizes packet reception and transmission through the standard Linux kernel interface. This thesis describes the design and implementation of network interface card's key components. Those are DMA controller and Linux device driver.
|
|
|
Network traffic and cyber attacks generator on the FPGA platform
Heriban, Radoslav ; Smékal, David (referee) ; Lieskovan, Tomáš (advisor)
This thesis is focused on the most common and every day more popular threat of DoS attacks. All networks are vulnerable to this kind of attack, and with growing popularity and intensity it shouldn't be underestimated. The goal of this thesis was creating hardware accelerated generator of DoS traffic intented for testing our own networks and identifying the risks. FPGA technology is used for this task, since it has proven to be more effective way of prototyping hardware design then developing ASIC. The language used to describe desired design behavior is VHDL. Designed ICMP and UDP flood attacks are simulated in Xilinx ISE development environment. Description of problems faced before any result was reached is also included for future researchers interested in similar projects.
|
|
|
Quality of services and experience qualify for next generation networks
Vaněk, Jiří ; Horváth, Tomáš (referee) ; Grenar, David (advisor)
The thesis sums up the traffic parameters for the evaluation of next-generation access networks. There are mentioned parameters for service quality management and parameters for measuring the quality of experience. The EU regulation on High Speed Internet in the Czech Republic is analyzed. The practical part compares the results between the implementation of the quality management of services and without implementation. Also there is comparing theoretical and practical transmission rates of physical ports. Part of the thesis is a questionnaire focused on the quality of experience of the video sequence.
|
|
|
Implementation of HDLC protocol in network simulators
Polášek, Jaromír ; Mašek, Pavel (referee) ; Pokorný, Jiří (advisor)
This diploma thesis deals with the possibility of using HDLC (High-Level Data Link Control) protocol for communication and addressing of smart metering devices with a data concentrator. The HDLC protocol is used in two DLMS/COSEM (Device Language Message Specification/Companion Specification for Energy Metering) communication profiles. To simulate these communication profiles, the most appropriate simulation program is selected. Using this simulator, the first communication profile is implemented and the second one is designed. Communication profile based on TCP/IP (Transmission Control Protocol/Internet Protocol) has been fully implemented. To implement the three-layer HDLC communication profile, all options have been thoroughly explored. Using these findings, a process was designed to guide the full implementation. For the first communication profile the qualitative parameters are measured, which are then plotted and evaluated.
|
|
| |
|
|
Packet generator on the FPGA platform
Bari, Lukáš ; Blažek, Petr (referee) ; Smékal, David (advisor)
The thesis deals with the theory and design of the network traffic generator on the FPGA platform. The VHDL programming language is used for the description. The work involves getting acquainted with the development processes and design tools needed to create the overall project. It also includes familiarity with the necessary FPGA, NetCOPE and COMBO cards. Based on this information, was designed, tested and implemented packet generator project for the Combo-80G card. For implementation was used framework from NetCOPE.
|
|
|
Communication of USB3.0 Chip with FPGA
Špeťko, Matej ; Viktorin, Jan (referee) ; Košař, Vlastimil (advisor)
SEC6NET is an abbreviation for project Modern tools for detection and mitigation of cyber criminality on the New Generation Internet. Project is focused on research and development of means for monitoring and analysing the network flow. Probes for monitoring IPv6 networks are developed within this project. Probes are using hardware acceleration based on FPGA platform. My thesis connects two technologies: FPGA and USB. The goal is to transfer data from the FPGA microchip to PC using Cypress EZ-USB FX3 microcontroller. The first part is focused on transferring data from FPGA to FX3 microcontroller. Second part describes the modification of FX3 firmware for getting maximum throughput. The last part focuses on implementing PC application for Linux operating system. The application receives data from the probe and saves them into hard drive using PCAP format.
|
|
|
Wireless sound transfer
Jeřábek, Vojtěch ; Bohrn, Marek (referee) ; Pavlík, Michal (advisor)
The thesis deals mainly with the possibilities of using the module nRF24L01+ for the wireless sound transfer, with as low latency, good reliability and sound quality as possible. The first part of the thesis is devoted to the description of the device and its internal structure for wireless sound transfer, even in the case of transferring multichannel sound. The thesis also describes the sound digitalization process and its requirements for the final quality. The second part of this thesis is focused on the description of the wireless module nRF24L01+, including analyzing its internal structure and the way it works. A comparison to other wireless modules that are available on the market, including its advantages and disadvantages, is also provided. The third part of the thesis is devoted to the design of the described system for an electric guitar.
|
|
|
Analysis of Sharing Networks
Blažek, Libor ; Mašek, Pavel (referee) ; Horváth, Tomáš (advisor)
The aim of the thesis is the design and implementation of the protocol in OPNET Modeler. In this work will be developed all the elements have been used no default settings. In the first chapters, making simulation are defined packets. Another chapter consists of a block diagram of workstations, which are assigned to function blocks. The central process is created by the process model, also for the router. The individual elements are inserted into a variety of elements and subsequently used in the simulation. Connection is a new service that has been defined separately. One of the simulations will be created on a smaller scale and the other on a global scale with more features.
|
guest ::
