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Design of laboratory tasks focused on the OLSR protocol.
Pecina, Martin ; Langhammer, Lukáš (referee) ; Kubánková, Anna (advisor)
An ad hoc mobile network is a collection of mobile nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. In order to simplify communication within the network, a routing protocol is used to discover routes between nodes. The primary goal of such an ad hoc network routing protocol is correct and efficient route establishment between a pair of nodes so that messages may be delivered on time. Route construction should be done with a minimum of overhead and bandwidth consumption. This document describes the Optimized Link State Routing (OLSR) protocol for mobile ad hoc networks. The key concept used in the protocol is that of multipoint relays (MPRs). MPRs provide an efficient mechanism for flooding control traffic by reducing the number of transmissions required.
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Routing policies and real paths in the Internet
Hlaváček, Tomáš ; Peterka, Jiří (advisor) ; Lukeš, Dan (referee)
Routing policies are now represented by RPSL and by its evolutionary extension called RPSLng. These languages can be used for describing unique routing policy of each autonomous system. Experience shows that even though there are translation tools from RPSL and RPSLng to configuration formats of commonly used routers, the actual network configuration is rarely generated from RPSL sources and routing policy is then perceived as marginal paperwork, which often does not reflect the real network settings. There will be most likely a need for RPSL format change in order to remedy the discrepancies. To support this I present long-term measurements of inaccuracies in routing policies compared to real paths in the Internet. I also present a list of the most frequent problems, and I offer suggestions, how to reform RPSL to improve situation in the long term. Powered by TCPDF (www.tcpdf.org)
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Routing policies and real paths in the Internet
Hlaváček, Tomáš ; Peterka, Jiří (advisor) ; Kruliš, Martin (referee)
Routing policies are now represented by RPSL and by its evolutionary extension called RPSLng. These languages can be used for describing unique routing policy of each autonomous system. Experience shows that even though there are translation tools from RPSL and RPSLng to configuration formats of commonly used routers, the actual network configuration is rarely generated from RPSL sources and routing policy is then perceived as marginal paperwork, which often does not reflect the real network settings. There will be most likely a need for RPSL format change in order to remedy the discrepancies. To support this I present long-term measurements of inaccuracies in routing policies compared to real paths in the Internet. I also present a list of the most frequent problems, and I offer suggestions, how to reform RPSL to improve situation in the long term. Powered by TCPDF (www.tcpdf.org)
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The application of viral nanoparticles in biomedicine
Kříž, Kristian ; Španielová, Hana (advisor) ; Beranová, Jana (referee)
This work compiles studies that lead to new applications of viral nanoparticles with an emphasis on utilizations in biomedicine. Firstly the work follows the characteristics of viral nanoparticles and some general aspects of nanoparticles. Further described herein are exemplary studies that are using viral nanoparticles as a tool for the treatment of cancer, viral, bacterial or other diseases. This review also includes examples of researches leading to the usage of viral nanoparticles for diagnostic purposes. Lastly, studies in which viral nanoparticles served as nanoextractors, nanoreactors or nanotemplates for the synthesis of metal nanoparticles and galvanic cells are mentioned here too.
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Retargeting of viral particles for directed cargo delivery into cells
Váňová, Jana ; Španielová, Hana (advisor) ; Kuthan, Martin (referee)
Due to their structure and ability to enter cells where they release their content, viral particles represent an attractive tool to deliver cargo to a cell. For therapeutic usage of viruses it is necessary to ensure the specific and highly efficient entry to target cells. This thesis offers an overview of methods used for virus retargeting with the intention to evaluate the success of retargeting in terms of specificity and efficiency of designed viral particles when entering a cell. On the basis of published data and considering the mechanisms of viral infection, the thesis demonstrates the difficulty to prevent the nonspecific viral particles from entering the cell and concludes that reaching total specificity is apparently impossible. Despite these small limitations, viral nanoparticles are a revolutionary therapeutic tool for delivering cargo to the cell and it is necessary to exploit their potential.
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Analysis of routing protocols used in MANET networks
Vala, Ondřej ; Hošek, Jiří (referee) ; Kubánková, Anna (advisor)
This diploma thesis is analysis of routing protocols used in MANET networks focusing on protocols OLSR, AODV and HWMP. The work consists of a theoretical and practical part. The theoretical part describes the routing protokols, which are used in MANET networks and their applications to FANET networks. In practical part, there are describes of created mobility model in the NS-3, which are used for comparison routing protocols on the created scenarios of mobility according to the qualitative parameters of the networks.
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A NEW DAWN OF NAMING, ADDRESSING AND ROUTING ON THE INTERNET
Veselý, Vladimír ; Muntan,, Jordi Perelló (referee) ; Grasa, Eduard (referee) ; Day, John (referee) ; Švéda, Miroslav (advisor)
Internet roku 2015 se potýká s problémy, které jsou důsledky špatného designu pojmenovávání a adresování v TCP/IP a jež mají přeneseny vliv i na škálovatelnost směrování. Problémy jako růst páteřních směrovacích tabulek, neefektivní multihoming sítí či mobilita zařízení a mnohé další zadávají k otázce, jestli není třeba architekturu Internetu pozměnit. V teoretické části je kvantifikován dopad problémů, možná řešení a zejména je formálně definována teorie kompilujicí poznatky významných publikací zabývajících se problematikou pojmenování, adresování a směrování v počítačových sítí. Tato práce se zabývá dvěma konkrétními technologiemi, jež mají ambicí Internet měnit - Locator/Id Separation Protocol a Recursive InterNetwork Architecture. Výstupem práce jsou vylepšení funkcionality obou výše zmíněných technologií. Za účelem praktického ověření dopadů našeho výzkumu jsou vyvinutý a popsány nové simulační modely pro OMNeT++, které jsou věrné úrovni detailu popisu ze specifikací.
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SDN Routing According to Transmitted Content
Gavryliuk, Olga ; Franková, Barbora (referee) ; Holkovič, Martin (advisor)
This works main point of focus is routing in software defined networks, which allow routing based on transfered packets. For accomplishing this task it was necessary to create a detection mechanism, that finds the connection within the OS which needs priority handling. New connections are sent via a routing aplication which is running on the SDN controller POX. The controller divides applications based on two criteria: The application requiring the largest bandwidth and the application requiring the fastest route. For this purpose four algorithms for routing data based on application preferences were designed and implemented. The applications were implemented in the Python language and they were tested in the simulation tool Mininet.
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Routing protocols analysis
Rozsypal, Ondřej ; Langhammer, Lukáš (referee) ; Kubánková, Anna (advisor)
This bachelor thesis deals with the routing problematics and the routing protocols of the third layer of the ISO/OSI reference model. In the first part of this thesis basic principles of routing are described. The next part explains the differences in routing and the behavior of each internal routing protocol. The last part is dedicated to design of a network used for analysis of each protocol, collection of routing parameters in different conditions between the routers. These parameters are then plotted into graphs and diagrams. Based on this data an analysis of these protocols is made.
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