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Routing among autonomous systems in Internet
Daněk, Michal ; Komosný, Dan (referee) ; Novotný, Vít (advisor)
Bachelor thesis describes the architecture of the Internet, its division into autonomous system and methods of their interconnection. Furthermore extensively describes routing mechanisms among autonomous system but also inside. More space is dedicated to routing protocols OSPF and BGP. At the end of the work is designed laboratory task for subject Network Architecture where this protocols are used.
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Modelling of network communication in OPNET IT Guru environment
Mazák, Andrej ; Škorpil, Vladislav (referee) ; Hošek, Jiří (advisor)
The aim of this work is to describe modeling of network communication with the given network performance and load. The selected model of network approaches the real network topology of a telecommunication operator that provides network services for the customers. We take a closer look on the functions of the significant network protocols EIGRP and BGP and we also will focus on their configuration on the selected network devices. Routing in the network will be analyzed in the individual project scenarios with a use of selected routing protocols. Routing policy will be enforced for a BGP protocol in a separate scenario with an aim to prefer a concrete routing path to the destination, which is a common case of traffic engineering. The issue of virtual private networks is also taken into a consideration in an individual scenario, where there is Firewall as a specific network device used for separation of networks of a different trustworthiness and a following introduction of IP tunneling for an encrypted communication among the selected network entities within the topology. Simulation of the network communication is aimed on the response of FTP service, time delay of Ethernet, throughput of backbone links and communication flow in the targeted scenarios. The output of this work deals with the analysis of the achieved results, comparison of graphs as well as evaluation of the determined simulation parameters.
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Measurement of Backbone Routing Parameters
Celárek, Ondřej ; Kořenek, Jan (referee) ; Matoušek, Jiří (advisor)
This thesis deals with issue of routing between Autonomous Systems. For routing between autonomous systems is used Border Gateway Protocol (BGP). The routers in Autonomous Systems modify their routing tables based on BGP messages. Routing tables are used for forwarding information on Internet. Issue of this thesis is analysis of change routing tables for eventually optimizing of routing architecture. First part of thesis is focused on theory of routers, routing ang BGP. Second part of this thesis focuses on implementation and execution experiments with routing tables. In this part are also described reached results.
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Longest Prefix Match Algorithms
Suchodol, Jaroslav ; Puš, Viktor (referee) ; Tobola, Jiří (advisor)
This work deal with routing in IP networks, particularly the issue of finding the longest matched prefix. Problems of finding the longest matched prefix solves many sophisticated algorithms. The main task of this work focuses on the following algorithms - Controlled Prefix Expansion, Lulea Compressed Tries, Binary search on intervals and Binary search on prefix length. Algorithms are described and followed by software implementation in Python. Output work is the analysis/comparison of different algorithms in terms of memory consumption and number of memory accesses at worst.
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Simulation of EIGRP Protocol Behavior Using OMNeT++
Tlolka, Martin ; Matoušek, Petr (referee) ; Ryšavý, Ondřej (advisor)
The present thesis deals with the analysis of EIGRP routing protocol for the purpose of integration of EIGRP simulation model in OMNeT++ environment. Protocol EIGRP defined by Cisco Systems is proprietary, which represents an obstacle in the implementation of a simulation model. In the present work, the description of a behavior of the protocol resembled from available information sources is given and then refined according the results obtained from experiments done with real network devices. The contribution of the work consists of a description of protocol behaviors in basics situations and the identification of properties that the simulation model should comply with.
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IPv6 Modelling in OMNeT++
Černý, Marek ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
OMNeT++ is a discrete-event simulator commonly used to build various network simulations. It can be extended by INET framework that supplies models of protocols and devices from TCP/IP environment. This paper explores current capabilities of INET to model IPv6, particularly routing. Implemented extension includes modules of dual-stack router and dual-stack host that support XML-based configuration of IPv6 addressing and static routing. We also introduce an OSPFv3 module that implements most of auxiliary features and is ready for future development of the routing protocol core.
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Implementation of the Advanced Security Algorithms into Home Routers
Špinler, Martin ; Šimek, Václav (referee) ; Kaštil, Jan (advisor)
This work deals with network devices designed for packet routing in small networks. It's focused on two particular devices with ARM processor. There is detailed description of an instalation of OpenWRT operating system to this devices. Next, there are results of tests of routing performance of these and some other selected devices and tests of performance of alogorithms used in network security. A module for OpenWRT operating system for pattern-matching in network traffic is also part of the work.
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Routing in Wireless Networks
Janský, Václav ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
This work deals with routing protocols for ad hoc wireless networks. First ad hoc networks are introduced. Routing protocols are then classified according to several criteria. Four routing protocols algorithms are described. They are proactive protocols DSDV and CGSR, reactive DSR and hybrid ZRP. Next AODV routing protocol is described in details. Advantages and disadvantages of AODV and two variants of AODV are also introduced. A new protocol is designed based on the disadvantages of the AODV protocol. This work also describes the implementation and integration of the new protocol in the ns-2 simulator. Results of the simulations are presented.
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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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