A model-driven emulation approach to large-scale TCP performance evaluation

Erazo, Miguel A.; Liu, Jason

doi:10.1504/ijcnds.2010.033971

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…In this section we evaluate SVEET's ability to deal with real traffic when running on a single physical machine [EL10a]. We choose the simple dumbbell network topology with a one-to-one mapping between the servers on the left side of the dumbbell and the clients on the right side.…”

Section: Assessing Time Dilation Effectivenessmentioning

confidence: 99%

“…Previous approaches, such as nse [Fal99], the ns-2 emulator [BEF + 00], and PRIME [LMVH07b], insert every packet generated from real applications into the simulator. As a direct consequence, while the output generated is accurate (see [ELL09] or [EL10a] for comparison between simulation and real systems), the scalability is seriously compromised by the maximum rate at which packets can be inserted into simulation.…”

Section: Limiting Incoming Trafficmentioning

confidence: 99%

“…PRIME with its distributed simulation capabilities, still suffers from reduced rate between real applications and the simulator [EL10a].…”

Section: Limiting Incoming Trafficmentioning

confidence: 99%

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Leveraging Symbiotic Relationships for Emulation of Computer Networks

Erazo¹

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All rights reserved.iii DEDICATION Antes que todo quiero dar gracias a Dios, que me dio espezanzas y fuerzas para cumplir este logro.Quiero dedicar esta Disertación a mis padres Abel y Lourdes; sin cuyo amor, esfuerzo, y dedicación, jamás esto hubiera sido posible.En la misma dimensión quiero también dedicar este logro a mi esposa Adriana. Su ayuda, constante paciencia, e incondicional amor han sido la luz que me guió y me dio esperanza estosúltimos tiempos. Mi hijo Sebastián ha sido otra motivación para seguir siempre adelante. Los amo a ambos.No sería justo no hacer agradecer a mis hermanos Ana y Alejandro, que me alegraron los días. Mi suegra Ana y don Lucho nos dieron valiosos consejos y estuvieron en los momentos más difíciles apoyándonos.Quiero tambien hacer mención especial a mi amigo de toda la vida Michi Berdeja, que siempre estuvo conmigo en los buenos y malos días y también a toda LA NAUSEA. The lack of analytical models that can accurately describe large-scale networked systems makes empirical experimentation indispensable for understanding complex behaviors. Research on network testbeds for testing network protocols and distributed services, including physical, emulated, and federated testbeds, has made steady progress. Although the success of these testbeds is undeniable, they fail to provide: 1) scalability, for handling large-scale networks with hundreds or thousands of hosts and routers organized in different scenarios, 2) flexibility, for testing new protocols or applications in diverse settings, and 3) inter-operability, for combining simulated and real network entities in experiments. This dissertation tackles these issues in three different dimensions.First, we present SVEET, a system that enables inter-operability between real and simulated hosts. In order to increase the scalability of networks under study, SVEET enables time-dilated synchronization between real hosts and the discrete-event simulator.Realistic TCP congestion control algorithms are implemented in the simulator to allow seamless interactions between real and simulated hosts. SVEET is validated via extensive experiments and its capabilities are assessed through case studies involving real applications.Second, we present PrimoGENI, a system that allows a distributed discrete-event simulator, running in real-time, to interact with real network entities in a federated en- Finally, to further increase the scalability of network testbeds to handle large-scale high-capacity networks, we present a novel symbiotic simulation approach. We present SymbioSim, a testbed for large-scale network experimentation where a high-performance simulation system closely cooperates with an emulation system in a mutually beneficial way. On the one hand, the simulation system benefits from incorporating the traffic metadata from real applications in the emulation system to reproduce the realistic traffic conditions. On the other hand, the emulation system benefits from receiving the continuous updates from the simulation system to calibrate the traffi...

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Section: Assessing Time Dilation Effectivenessmentioning

confidence: 99%

Section: Limiting Incoming Trafficmentioning

confidence: 99%

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Leveraging Symbiotic Relationships for Emulation of Computer Networks

Erazo¹

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Open VPN Application Under Campus Network

Zhou

Huang

2021

J. Phys.: Conf. Ser.

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For security and intellectual copyright considerations, colleges and universities generally have the same problem: non-campus residents cannot access many resources on the campus network. OpenVPN is an open source based on the SSL protocol, combined with the actual needs of campus network applications, it describes in detail how to use the open source OpenVPN technology on the LINUX operating platform to build a user access system. Users can quickly access campus resources by establishing a connection with the OpenVPN server through the client program. Without additional investment, the confidentiality of data is ensured. It allows users to break through the limitations of time and space, which not only facilitates users, but also improves the utilization rate of campus network information resources.

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A model-driven emulation approach to large-scale TCP performance evaluation

Cited by 2 publications

References 27 publications

Leveraging Symbiotic Relationships for Emulation of Computer Networks

Leveraging Symbiotic Relationships for Emulation of Computer Networks

Open VPN Application Under Campus Network

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