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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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Comparison of Link-State Routing Protocols
Zavřel, Jan ; Marek, Marcel (referee) ; Veselý, Vladimír (advisor)
This thesis deals with a comparison of two dynamic link-state routing protocols OSPF and IS-IS. These protocols are used to route within one autonomous system under control of one administrative entity. They are similar in theory but IS-IS seems to be much more popular in large topologies in practice. Goal of this thesis is to figure out how their properties and features manifest on given topologies on real routers and in simulations. Simulations are realized in discrete simulator OMNeT++ and real topologies are built with Cisco devices. Primary measured parameters are speed of convergence, bandwidth usage and message order. The simulation result may be affected by their implementation in INET and ANSAINET frameworks. Implementation properties of OSPF and IS-IS on Cisco devices are compared to their simulated counterparts in order to verify functionality of the simulation models.
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Dynamic State of OMNeT++ Model via SNMP
Smejkal, Jakub ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
This work outlines ways of getting dynamic state into OMNeT++ model. SNMP as major technology was selected for reaching the goals. Protocols CDP and LLDP are participating in topology detection and in theoretical layer Breadth- first search is used. The output of this tool is file syntactically specied by NED language which is describing computer network.
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Modelling Gateway Redundancy Protocols
Vítek, Petr ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
This master's thesis report deals with the theoretical analysis of FHRP. First Hop Redundancy Protocols are network protocols which are designed to protect the default gateway and also to ensure high availability in the network by using redundancy. The reader becomes familiar with protocols VRRP, HSRP and GLBP and also learn the way how to configure them to on real Cisco devices. It also describes how implement VRRP int the simulated enviroment of OMNeT++. The result of the implementation is verified in the test topologies.
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Modelling HSRP and GLBP Gateway Redundancy Protocols
Holuša, Jan ; Marek, Marcel (referee) ; Veselý, Vladimír (advisor)
This thesis deals with theoretical analysis of First Hop Redundancy Protocols. It describes Hot Standby Router Protocol, Virtual Router Redundancy Protocol and Gateway Load Balancing Protocol. It also shows examples of configuration of each protocol on Cisco devices with supported version of the Cisco IOS. Furthermore, this thesis includes design of two of these protocols, Hot Standby Router Protocol and Gateway Load Balancing Protocol, and their implementation in discrete event simulator OMNeT++ and Automated Network Simulation and Analysis library. Finally, the thesis presents results of testing of the implementations in comparison with actual Cisco devices.
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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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Modelling of EIGRP Routing Protocol
Bloudíček, Jan ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
The network simulation allows analysis of the computer networks behavior and configured protocols. This thesis focuses on the EIGRP routing protocol and its integration into the OMNeT++ simulation enviroment. The text includes a detailed description of the protocol and its configuration on Cisco devices. Furthermore, the text focuses on design of extension that supports routing protocol. The following describes implementation of the protocol according to design. Finally, the implemented solution is compared with the output of real devices.
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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 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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Modeling and Simulation of EIGRP and BGP
Zavřel, Jan ; Marek, Marcel (referee) ; Veselý, Vladimír (advisor)
Internet se za posledních několik desítek let stal jedním z nejdůležitějších nástrojů pro mezilidskou komunikaci. Miliardy lidí ho denně používají na zábavu, na práci, na vzdělání či uspokojení lidského kontaktu. Je nutné si připustit, že na jeho správném fungování je obrovská část populace existenčně závislá. Toto se odráží na stále se zvětšujících požadavcích na vyšší rychlost, nižší zpoždění a větší pokrytí a stabilitu. Síťoví inženýři a architekti musí při návrhu a nasazení dbát právě na tyto aspekty. Jedním ze způsobů, kterým je možné navržené topologie otestovat, je simulace. Simulace využívá simulační modely, které, pokud přesně odráží realitu, mohou poskytnout klíčové informace o topologiích v bezpečném prostředí a to za velice přívětivou cenu. Tato práce se zabývá analýzou a následným vylepšením dvou simulačních modelů dynamických směrovacích protokolů EIGRP a BGP. Tyto modely mohou být použity k vytvoření komplexních simulačních topologií a scénářů v diskrétním simulátoru OMNeT++.
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