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Modelling of L2 Loop-Preventing Protocols
Hrnčiřík, Matej ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
This thesis informs about currently used technologies, which provide loop protection on data link layer of computer networks. It clarifies issues of Ethernet networks. Chosen protocols are then closely described. There are presented advantages and disadvantages of chosen protocols and they are compared to other technologies. Practical section describes the initial implementation of IS-IS in OMNeT++ environment, which serves as the basic building block of TRILL protocol. An important issue is to verify correctness of implementation.
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Modelling IS-IS and TRILL
Marek, Marcel ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
In this thesis, we describe the principles of IS-IS routing protocol. We introduce the current state of implementation of this protocol within the simulation framework OMNeT++. We present the implementation of the IS-IS protocol created within the ANSA project. Moreover, we employ its variant called TRILL that is nowadays deployed as replacement of STP in data-center environment. The aim is to enable the modelling of the protocols without the need having to build physical architecture.
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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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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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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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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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|
|
Modelling of L2 Loop-Preventing Protocols
Hrnčiřík, Matej ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
This thesis informs about currently used technologies, which provide loop protection on data link layer of computer networks. It clarifies issues of Ethernet networks. Chosen protocols are then closely described. There are presented advantages and disadvantages of chosen protocols and they are compared to other technologies. Practical section describes the initial implementation of IS-IS in OMNeT++ environment, which serves as the basic building block of TRILL protocol. An important issue is to verify correctness of implementation.
|
|
|
Modelling IS-IS and TRILL
Marek, Marcel ; Grégr, Matěj (referee) ; Veselý, Vladimír (advisor)
In this thesis, we describe the principles of IS-IS routing protocol. We introduce the current state of implementation of this protocol within the simulation framework OMNeT++. We present the implementation of the IS-IS protocol created within the ANSA project. Moreover, we employ its variant called TRILL that is nowadays deployed as replacement of STP in data-center environment. The aim is to enable the modelling of the protocols without the need having to build physical architecture.
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