|
|
Protection Against DoS Attacks Using P4 Language
Vojanec, Kamil ; Fukač, Tomáš (referee) ; Kučera, Jan (advisor)
This thesis focuses on reimplementation of existing DoS (Denial of Service) attack mitigation device with high-level P4 programming language. The main reason for using P4 is to enhance adaptability and functionality to different types of DoS attacks. The created device is designed in a modular way and enables easy alterations by using interchangeable components. The target platform for this thesis is an FPGA acceleration card. The work results in designing several DoS mitigation components and implementing applications composed of these components. Pats of this work have been presented at IEEE ANCS (Symposium on Architectures for Networking and Communication Systems) in September 2019 at University of Cambridge.
|
|
|
Implementation of Self-Correcting Codes for 100 Gb/s Ethernet
Velecký, Jan ; Kučera, Jan (referee) ; Kekely, Lukáš (advisor)
The thesis deals with the design of entire RS-FEC layer for the 100 Gb/s Ethernet according to IEEE 802.3-2015 standard including Reed-Solomon encoder and decoder. Text clarifies mathematical basis of finite fields, linear block codes, cyclic codes and particularly Reed-Solomon codes used in design. Design of RS-FEC layer transmit side has been adjusted for implementation in COMBO network cards which use Xilinx Virtex-7 FPGA and realized in VHDL. Encoder has been optimized in several steps - as for FPGA resource usage and as for VHDL code synthesis duration. Reduction of resource usage has been achieved by using pipelining thanks to properties of cyclic codes. Synthesis duration then by creating logic of encoder on gate level on its own. Resulting implementation has been tested in simulation and it is optimized enough for usage in FPGA for Ethernet implementation. It is possible to adapt both design and implementation for 400Gb/s Ethernet which does not exist yet at the time of design.
|
|
| |
|
|
Performance Measurement Tool for DNS Servers
Postolka, Matěj ; Kučera, Jan (referee) ; Vrána, Roman (advisor)
Tato práce popisuje návrh a tvorbu testovacího prostředí pro měření výkonnosti DNS serverů nad transportními protokoly TCP a UDP. Obsahuje výsledky výkonnostního měření tří různých implementací autoritativních DNS serverů nad síťovým provozem složeným z různých typů DNS dotazů zaslaných pomocí různých síťových a transportních protokolů. Je provedeno srovnání výkonnosti těchto implementací.
|
|
|
Module for Network Policy Monitoring in Flow Data
Piecek, Adam ; Kučera, Jan (referee) ; Wrona, Jan (advisor)
The aim of this master's thesis is to design a language through which it would be possible to monitor a stream of network flows in order to detect network policy violations in the local network. An analysis of the languages used in the data stream management systems and an analysis of tasks submitted by the potential administrator were both carried out. The analysis specified resulted in the language design which represents pipelining consisting of filtering and aggregation. These operations can be clearly defined and managed within security rules. The result of this thesis also results in the Policer modul being integrated in the NEMEA system, which is able to apply the main commands of the proposed language. Finally, the module meets the requirements of the specified tasks and may be used for further development in the area of monitoring network policies.
|
|
|
Framework for Graphical User Interface Testing
Báča, Erik ; Kučera, Jan (referee) ; Kocnová, Jitka (advisor)
This thesis is describing the development of a framework for graphic user interface testing with usage of Soft Computing algorithms. Development is divided into four phases. The first phase is acquaintance with existing GUI testing frameworks and their analysis. The second phase is about choosing appropriate technologies for development, appropriate algorithms and implementation design. Then there is the framework implementation phase itself and last phase with the testing, result evaluation and improvements proposal.
|
|
|
The DPDK DNS Probe Application Extension
Doležal, Pavel ; Kučera, Jan (referee) ; Vrána, Roman (advisor)
This master's thesis is focused on extension of the DPDK DNS Probe application that monitors DNS traffic in high speed networks. It presents framework DPDK, which can be used for fast packet processing. General architecture of the DNS system is described as well as details of its components. Basic principles of transport protocol TCP are described. It introduces an effective design and implementation of DNS packet parsing to optimize DPDK DNS Probe's performance. It also introduces a design and implementation of processing DNS messages sent over TCP for export of traffic statistics. The application's performance was tested using a high speed traffic generator Spirent.
|
|
|
Liquidation of Trading Companies and Legal Status of Liquidator
Kučera, Jan ; Nožička, Lukáš (referee) ; Musilová, Helena (advisor)
Work deals with the abolition of all types of companies and concentrates on liquidation. Work aims to analyze the possibility of termination of corporate insolvency, to pay attention to the possible potential pitfalls. Analytical section examines the progress of liquidation of a company from the perspective of a liquidator. The goal is a seamless implementation of the liquidation of the greatest benefits for shareholders.
|
|
|
Remote Configuration of P4 Device
Neruda, Jakub ; Kučera, Jan (referee) ; Wrona, Jan (advisor)
Administration of a large network from a central node with a vendor independent API is quite important issue these days. The concept of SDN was truly helpful with realization of the solution, namely in the form of the OpenFlow protocol. Nowadays, a P4 language is gaining momentum, primarily thanks to its ability to describe whole packet processing pipeline and also for the P4 Runtime, solution to the distributed network configuration. CESNET association is one of the research groups starting to support P4 in their network cards beloging to the Combo series. In this work, an API was designed for these cards, aimed at the dynamic flow table configuration. This API was used for implementation of a basic support of the Combo cards in the P4 Runtime.
|
|
|
Eye Tracking Based Gaming Combat System
Kučera, Ján ; Kapinus, Michal (referee) ; Chlubna, Tomáš (advisor)
Aim of this thesis is to create a 3D fighting game in which, a player is able to aim via their eye gaze. Eyes are tracked using special glasses Pupil Core, that track players eye gaze using infrared camera. The game itself is implemented in a game engine Unity and communication between game and glasses is implemented via local server. The result is a 3D fighting game with an aiming mechanic using eye gaze.
|
guest ::
RSS feed.