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Validation of Network Parameters Based on Network Monitoring
Martínek, Radim ; Veselý, Vladimír (referee) ; Žádník, Martin (advisor)
The Master's Thesis presents a theoretical introduction, familiarization with the issue and a implementation for a solution of a "network parameter validation" tool, which is founded on principle of network traffic monitoring. Firstly, the current development of computer network setup is analyzed with its limitations. This is an initial point for an introduction of a new approach for implementation and verification of required network setting, which uses techniques of verification, simulation and validation. After the introduction into the context, validation techniques are specifically examined. The Thesis main contribution lies in the capacity to determine appropriate parameters, which can be used for validation and also for implementation of the tool, which ensures validation process. The network traffic, which characterizes the behavior of the network, is collected by NetFlow technology, which generates network flows. These flows are consequently used by the designed tool used for validation of required network parameters. This process overall verifies whether the main computer network requirements have been met or not.
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Modelling of Distance-Vector Routing Protocols
Trhlík, Jiří ; Matoušek, Petr (referee) ; Veselý, Vladimír (advisor)
This master thesis deals with the implementation of the RIPng routing protocol in the OMNeT++/INET environment. It describes the RIPng protocol and its specifics on the Cisco devices. It clarifies important concepts such as IPv6 and distance-vector routing protocols. The thesis also describes the OMNeT++ environment and the INET Framework, where it focuses on the current status of implementation of the components required for the RIPng protocol integration.
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Modelling New Network Architectures in OMNeT++
Hykel, Tomáš ; Veselý, Vladimír (referee) ; Marek, Marcel (advisor)
This thesis describes principles and state of implementation of selected new network architectures. It also documents implementation of the Relaying and Multiplexing Task module of one of the presented architectures, Recursive InterNetwork Architecture (RINA), for the OMNeT++ simulation framework. The main goal of this thesis is to extend functionality of an existing simulation library to provide a full-fledged means for modelling RINA networks.
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Recursive IPC Network Architecture: Analyze and Model of Enrollment
Jeřábek, Kamil ; Marek, Marcel (referee) ; Halfar, Patrik (advisor)
This thesis is focused on analysis of the Enrollment and integration of this phase to model of Recursive InterNetwork Architecture (RINA) that is developed in the OMNeT++ simulation environment. In this thesis is the RINA architecture described generally. Furthermore, there are listed cases of the Enrollment and the Common Application Connection Establishement Phase, and it is described when starts and ends. The thesis is especially focused on design and implemntation of these phases of communication in the OMNeT++ simulation environment within Pristine project.
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Modelling of Babel Routing Protocol
Rek, Vít ; Marek, Marcel (referee) ; Veselý, Vladimír (advisor)
This thesis deals with the simulation of a Babel routing protocol. The goal is to create implementation of simulation model for OMNeT++ simulator. The text includes a description of the protocol and basic principles of computer network simulation in OMNeT++ environment using an INET library. Furthermore, the text discussed existing implementations and submits a proposal of a simulation model, followed by description of its implementation. Finally, the correctness of created model is verified.
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Wireless 802.11 IP Networks and their models in the OMNeT++ simulation tool
Jakúbek, Peter ; Burda, Karel (referee) ; Růčka, Lukáš (advisor)
The bachelor work concentrates on familiarization with the standard IEEE 802.11. The work summarises the advantages, disadvantages, history and grouping of this standard according to norms. The great attention is paid to a user’s familiarization with the stimulating tool OMNeT++ and its extension Inet Framework. This extension helps to amplify the simulator for a supporting modelling of wireless nets. It supports models of a few protocols such as IP, UDP/TCP, Ethernet, PPP, IPV6, OSPF, RIP, and MPLS. It includes already programmed API modules from which is possible to create easily a wireless IP net.Programmes needed for a proper functioning of the OMNeT++ are described in corresponding paragraphs. A part of work deals with an installation and setting of programmes for accurate functioning of a compiler surrounding. Our work analyzes possibilities and manners of simulation of wireless IP nets which helps to create basic simulation model represented by standard 802.11. There are also included laboratory works in our bachelor work, which includes theoretical introduction to studied issues. Tasks are concentrated on ad-hoc and infrastructure mode. These tasks comprise of theory of problematic, detailed instructions for creating together with explanations, processed results and output of simulation
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QoS in IP network with the help of OMNeT++ simulation tool
Hudec, Lukáš ; Mlýnek, Petr (referee) ; Růčka, Lukáš (advisor)
The content of this thesis is giving information about the network simulator OMNeT++ and its superstructure INET Framework. In this thesis a sample simulation of IP network with the help of simulation package INET Framework is realized on this theme. The thesis also deals with analysis of possibilities, how to assure quality service in IP networks and subsequently implementation quality of service in surrounding of network simulator OMNeT++ and its superstructure INET Framework. The implementation is accomplished by two methods. The first method is implementation of differential service, in other words DiffServ, with the help of change the behavior of output. This change rest in sorting of data packets to different queues by their device priority. The second method shows principles of the technology MPLS and also function code protocol OSPF. The MPLS technology is realized by special routers with implemented moduls reservation protocol.
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Simulation of data networks in OMNeT++
Závodný, Ondřej ; Novotný, Vít (referee) ; Skořepa, Michal (advisor)
The content of this work is to research possibilities of simulation data networks in a simulating environment OMNeT++ with INET framework and at observance of standards 802.3 (ethernet) and 802.11 (Wi-Fi).\ In a given environment will be simulated handover in a Wi-Fi network and on the second layer of the reference model ISO/OSI. In this example will be processed visualization of the conditions and sending informations between network elements.\ In the next practical example will be simulated the operation on the application layer (video current, ftp communication) at using a relevant transport protocols (UDP,TCP). For routing between network elements will be utilized configuration files. By transport protocol UDP will be displayed a delay graph between final elements and jitter, by TCP protocol will be represented so-called three-way-handshake.
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Simulation of Triple Play services in passive optical networks with OMNeT++ application
Puchrík, Matej ; Oujezský, Václav (referee) ; Horváth, Tomáš (advisor)
The thesis deals with dynamic bandwidth allocation in passive optical networks of NG- PON2 standard. The paper also describes the so-called. triple play services and the practical part is a simulation of these services in passive optical networks NG-PON2 in the simulation environment OMNeT ++. As part of this work modules for passive optical network NG-PON2 were created as an expansion of project INET. Namely ONU, OLT and splitter modules were created. The first four chapters are theoretical and descibe older standards PON networks, further NG-PON2 networks and DBA algorithm then describes triple play services and explains their current status respectively. In another part a description of the programm OMNeT++ a description of the structure of simulation models. The practical part contains a description of modules, implementation of DBA algorithm and its modification, design simulated topology and detailed description of the configuration simulation. At the end of the practical part presents the results of simulations with the corresponding explanations.
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Protocol model design in OMNET++ simulator
Vohralík, Jan ; Matocha, Tomáš (referee) ; Novotný, Vít (advisor)
The aim of this Thesis is giving information about the network simulating system OMNeT++ and its extension INET framework and explore possible solution to implement missing protocol RIP. OMNeT++ is a discrete-event simulation environment. Source code is available and free for teaching and research purposes. Its primary application area is the simulation of communication networks, but because of its generic and flexible architecture, is successfully used in other areas like the simulation of complex IT systems, queueing networks or hardware architectures as well. The first part of Thesis decribes RIP protocol operations and conception of OMNeT++. At the second part of Thesis the implementation design and discussion of created modules and component is presented here. The final part of the Thesis was creating the laboratory problem on the basis experience gained. Implementation is realized in C++ programming language.
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