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Добірка наукової літератури з теми "Software switch"

Автор: Grafiati

Опубліковано: 17 серпня 2022

Оновлено: 11 вересня 2022

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Статті в журналах з теми "Software switch"

Singh, Rachee, Muqeet Mukhtar, Ashay Krishna, Aniruddha Parkhi, Jitendra Padhye, and David Maltz. "Surviving switch failures in cloud datacenters." ACM SIGCOMM Computer Communication Review 51, no. 2 (April 11, 2021): 2–9. http://dx.doi.org/10.1145/3464994.3464996.

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Switch failures can hamper access to client services, cause link congestion and blackhole network traffic. In this study, we examine the nature of switch failures in the datacenters of a large commercial cloud provider through the lens of survival theory. We study a cohort of over 180,000 switches with a variety of hardware and software configurations and find that datacenter switches have a 98% likelihood of functioning uninterrupted for over 3 months since deployment in production. However, there is significant heterogeneity in switch survival rates with respect to their hardware and software: the switches of one vendor are twice as likely to fail compared to the others. We attribute the majority of switch failures to hardware impairments and unplanned power losses. We find that the in-house switch operating system, SONiC, boosts the survival likelihood of switches in datacenters by 1% by eliminating switch failures caused by software bugs in vendor switch OSes.

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Densmore, W., R. J. Jakubek, M. J. Miracle, and J. H. Sun. "System 75:Switch Services Software." AT&T Technical Journal 64, no. 1 (January 1985): 197–212. http://dx.doi.org/10.1002/j.1538-7305.1985.tb00428.x.

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Fu, Wenwen, Tao Li, and Zhigang Sun. "FAS: Using FPGA to Accelerate and Secure SDN Software Switches." Security and Communication Networks 2018 (2018): 1–13. http://dx.doi.org/10.1155/2018/5650205.

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Анотація:

Software-Defined Networking (SDN) promises the vision of more flexible and manageable networks but requires certain level of programmability in the data plane to accommodate different forwarding abstractions. SDN software switches running on commodity multicore platforms are programmable and are with low deployment cost. However, the performance of SDN software switches is not satisfactory due to the complex forwarding operations on packets. Moreover, this may hinder the performance of real-time security on software switch. In this paper, we analyze the forwarding procedure and identify the performance bottleneck of SDN software switches. An FPGA-based mechanism for accelerating and securing SDN switches, named FAS (FPGA-Accelerated SDN software switch), is proposed to take advantage of the reconfigurability and high-performance advantages of FPGA. FAS improves the performance as well as the capacity against malicious traffic attacks of SDN software switches by offloading some functional modules. We validate FAS on an FPGA-based network processing platform. Experiment results demonstrate that the forwarding rate of FAS can be 44% higher than the original SDN software switch. In addition, FAS provides new opportunity to enhance the security of SDN software switches by allowing the deployment of bump-in-the-wire security modules (such as packet detectors and filters) in FPGA.

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Mochalov, Valery P., Gennady I. Linets, Natalya Yu Bratchenko, and Svetlana V. Govorova. "An Analytical Model of a Corporate Software-Controlled Network Switch." Scalable Computing: Practice and Experience 21, no. 2 (June 27, 2020): 337–46. http://dx.doi.org/10.12694/scpe.v21i2.1698.

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Implementing the almost limitless possibilities of a software-defined network requires additional study of its infrastructure level and assessment of the telecommunications aspect. The aim of this study is to develop an analytical model for analyzing the main quality indicators of modern network switches. Based on the general theory of queuing systems and networks, generated functions and Laplace-Stieltjes transforms, a three-phase model of a network switch was developed. Given that, in this case, the relationship between processing steps is not significant, quality indicators were obtained by taking into account the parameters of single-phase networks. This research identified the dependencies of service latency and service time of incoming network packets on load, as well as equations for finding the volume of a switch’s buffer memory with an acceptable probability for message loss.

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Nuraeni, Mega Safira, Eka Wahyudi, and Nanda Iryani. "Perbandingan Kontroler POX, Ryu dan ONOS Pada Arsitektur Software Defined Network (SDN) Menggunakan Topologi Linear." Journal of Telecommunication, Electronics, and Control Engineering (JTECE) 4, no. 2 (July 4, 2022): 66–79. http://dx.doi.org/10.20895/jtece.v4i2.360.

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Анотація:

Abstrak Software defined network merupakan konsep baru yang memisahkan data plane dengan control plane. Kontroler menjadi suatu hal yang penting dalam membangun arsitektur software defined network, sehingga dibutuhkan informasi terkait performansi kontroler untuk mengetahui tingkat kemampuan suatu kontroler, bebarapa kontroler yang ada diantaranya POX, Ryu dan ONOS. Pada penenelitan ini menggunakan topologi jaringan linear yang menggunakan 10 switch dan 10 host, 12 switch dan 12 host, 14 switch dan 14 host dan 16 Switch 16 host pada background traffic 50 Mbps hingga 200 Mbps. Dari pengujian ini diperoleh hasil bahwa kenaikan nilai troughput, delay dan jitter berbanding lurus dengan meningkatnya jumlah switch, kontroler POX memiliki performa terbaik dibandingkan dengan kontroler Ryu dan ONOS dengan nilai troughput yang didapatkan sebesar 5.139,456 Kbits/sec hingga 5.142,139 Kbits/sec, untuk nilai delay yang didapatkan sebesar 0,078 ms hingga 0,110 ms sedangkan untuk nilai jitter diperoleh 0,037 ms hingga 0,070 ms. Abstract Software defined network is a new concept that separates the data plane from the control plane. The controller is an important thing in building a software defined network architecture, so information regarding controller performance is needed to determine the level of capability of a controller, some of the existing controllers include POX, Ryu and ONOS. This research uses a linear network topology that uses 10 switches and 10 host, 12 switches and 12 host, 14 switches and 14 host and 16 switches and 16 host on 50 Mbps to 200 Mbps background traffic. From this test, the results show that the increase in throughput, delay and jitter values is directly proportional to the increase in the number of switches, the POX controller has the best performance compared to the Ryu and ONOS controllers with the throughput value obtained from 5,139,456 Kbits/sec to 5,142,139 Kbits/sec. , for the delay value obtained is 0.078 ms to 0.110 ms while the jitter value is obtained from 0.037 ms to 0.070 ms.

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LI, DAWEI, JIE WU, DAJIN WANG, and JIAYIN WANG. "Software-Defined Networking Switches for Fast Single-Link Failure Recovery." Journal of Interconnection Networks 18, no. 04 (December 2018): 1850014. http://dx.doi.org/10.1142/s0219265918500147.

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Анотація:

In this paper, we consider IP fast recovery from single-link failures in a given network topology. The basic idea is to replace some existing routers with a designated switch. When a link fails, the affected router will send all the affected traffic to the designated switch (through pre-configured IP tunnels), which will deliver the affected traffic to its destination without using the failed link. The goal of the approach is to achieve faster failure recovery than traditional routing protocols that employ reactive computing upon link failures. Software-Defined Networking (SDN) switches can serve as the designated switches because they can flexibly redirect affected traffic to other routes, instead of only to the shortest paths in the network. However, SDN switches are very expensive. Our objective is to minimize the number of SDN switches needed and to guarantee that the network can still recover from any single-link failure. For networks with uniform link costs, we show that using normal non-SDN switches with IP tunneling capability as designated switches can guarantee recovery from any single-link failure. For networks with general link costs, we find that not all single-link failures can be recovered by using non-SDN switches as designated switches; by using SDN switches only when necessary, we can reduce the total number of SDN switches needed compared to an existing work. We conduct extensive simulations to verify our proposed approaches.

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Wen, Hua Bin, Yong Duan Song, and Rui Li. "A Study on Virtual Prototyping Technology for Vacuum Switch." Advanced Materials Research 187 (February 2011): 528–34. http://dx.doi.org/10.4028/www.scientific.net/amr.187.528.

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The optimal design of vacuum switch is becoming an important research topic with the extensive application and increasing demands of vacuum switches. This paper analyzes the main elements of the vacuum switch design, and gives the design process of the vacuum switch. An optimal design method is proposed for the vacuum switch based on the concept and characteristics of virtual prototyping (VP) technology. By using computer aided design and the related software, we propose a method for vacuum switch modeling VP, the stress field VP of parts, the thermal field VP of electric heat, the electric field VP of insulation parts and the mechanical dynamic VP of kinematics system, which are integrated for optimization design for vacuum switches. This work is expected to provide a new idea for optimal and rapid design of vacuum switches.

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MOHAN, J., SHWETA M. DEVANAGAONKAR, VINEETA V. GARUR, A. KARTHIK, K. ROHITAKSHA, and A. B. RAJENDRA. "An Improved Approach for Eliminating the Loop in Hybrid Software Defined Network (SDN) Using Modified Bellman-Ford Algorithm." Journal of Interconnection Networks 20, no. 04 (December 2020): 2150001. http://dx.doi.org/10.1142/s0219265921500018.

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Анотація:

SDN is approaching its own structure of acceptance. Therefore, the increasing deployment of SDNs is being discussed as a possible approach, appearing in the development of the hybrid SDN networks. An foremost work in the hybrid SDN networks is bandwidth allocation, taking into account the integration of both SDN-enabled and conventional switches. The network loop in layer 2 switches is skipped in Spanning Tree Protocol (STP) by ceaselessly watching the network to trace all links and block the unwanted ones. Bridge loops will occur anytime there’s a redundant Layer2 way between ends. By default, switches forward broadcast/multicast out all ports, other than the port from that the broadcast/multicast was delivered. Once a switch loop is brought in the network, broadcast messages are going to be broadcasted more often leading to broadcast storms. The Spanning-tree algorithm enforces a distributed divergent of the Bellman-Ford iterative algorithm that always looks for the optimal solution and selects an optimal influential switch anytime. In this paper we use controller’s global network view for resolving loop problem in layer 2 network. SDN controller acts on broadcast packets received from switch-ports and host-ports differently that is if the broadcast packets received from host ports, the SDN controller broadcasts these packets to all ports and if broadcast packets is received from switch ports, only some switches broadcasts these packets on all ports instead of all switches.

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Kartadie, Rikie. "Performance Test of Openflow Agent on Openflow Software-Based Mikrotik RB750 Switch." Scientific Journal of Informatics 3, no. 2 (November 23, 2016): 217–28. http://dx.doi.org/10.15294/sji.v3i2.7987.

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Анотація:

A network is usually developed by several devices such as router, switch etc. Every device forwards data package manipulation with complicated protocol planted in its hardware. An operator is responsible for running configuration either to manage rules or application applied in the network. Human error may occur when device configuration run manually by operator. Some famous vendors, one of them is MikroTik, has also been implementing this OpenFlow on its operation. It provides the implementation of SDN/OpenFlow architecture with affordable cost. The second phase research result showed that switch OF software-based MikroTik resulted higher latency value than both mininet and switch OF software-based OpenWRT. The average gap value of switch OF software-based MikroTik is 2012 kbps lower than the value of switch OF software-based OpenWRT. The average gap value of throughput bandwidth protocol UDP switch OF software-based MikroTik is 3.6176 kBps lower than switch OF software-based OpenWRT and it is 8.68 kBps lower than mininet. The average gap throughput jitter protokol UDP of switch OF software-based MiktoTik is 0.0103ms lower than switch OF software-based OpenWRT and 0.0093ms lower than mininet.

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Isyaku, Babangida, Kamalrulnizam Abu Bakar, Mohd Soperi Mohd Zahid, Eman H. Alkhammash, Faisal Saeed, and Fuad A. Ghaleb. "Route Path Selection Optimization Scheme Based Link Quality Estimation and Critical Switch Awareness for Software Defined Networks." Applied Sciences 11, no. 19 (September 29, 2021): 9100. http://dx.doi.org/10.3390/app11199100.

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Анотація:

Software-defined network (SDN) is a new paradigm that decouples the control plane and data plane. This offered a more flexible way to efficiently manage the network. However, the increasing number of traffics due to the proliferation of the Internet of Things (IoT) devices also increase the number of flow arrival which in turn causes flow rules to change more often, and similarly, path setup requests increased. These events required route path computation activities to take place immediately to cope with the new network changes. Searching for an optimal route might be costly in terms of the time required to calculate a new path and update the corresponding switches. However, the current path selection schemes considered only single routing metrics either link or switch operation. Incorporating link quality and switch’s role during path selection decisions have not been considered. This paper proposed Route Path Selection Optimization (RPSO) with multi-constraint. RPSO introduced joint parameters based on link and switches such as Link Latency (LL), Link Delivery Ratio (LDR), and Critical Switch Frequency Score (CWFscore). These metrics encourage path selection with better link quality and a minimal number of critical switches. The experimental results show that the proposed scheme reduced path stretch by 37%, path setup latency by 73% thereby improving throughput by 55.73%, and packet delivery ratio by 12.5% compared to the baseline work.

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Більше джерел

Дисертації з теми "Software switch"

Fernandes, Eder Leão 1987. "Software Switch 1.3 : an experimenter-friendly OpenFlow implementation = Software Switch 1.3 : implementação de um comutador OpenFlow para experimentação em Redes Definidas por Software." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258850.

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Анотація:

Orientador: Christian Rodolfo Esteve Rothenberg
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação
Made available in DSpace on 2018-08-27T04:14:12Z (GMT). No. of bitstreams: 1 Fernandes_EderLeao_M.pdf: 1013570 bytes, checksum: 6c396641a9ce6faceedd380180040736 (MD5) Previous issue date: 2015
Resumo: OpenFlow é a mais proeminente tecnologia para a implementação de Redes Definidas por Software (RDS). Projetada como uma interface de controle entre switches e controladores, o protocolo pode ser visto como um conjunto de instruções para programar a lógica de encaminhamento em comutadores da rede. A primeira versão do OpenFlow atraiu a atenção de pesquisadores da indústria e universidades interessados nos potenciais benefícios prometidos por RDS. Rápidamente surgiram ferramentas para experimentação em OpenFlow 1.0, incluindo comutadores, controladores e software para testes e emulação. Após o início da padronização do protocolo pela OpenNetworkFoundation, o protocolo OpenFlow evoluiu rapidamente dando origem à novas especificações. As novas funcionalidades aumentaram as possibilidades de experimentos, gerando entusiasmo. Porém, o desenvolvimento das ferramentas de experimen- tação não acompanharam o mesmo rítmo do protocolo. Para preencher essa lacuna, nosso projeto desenvolveu um comutador em software com suporte a OpenFlow 1.3. Guiado pelo objetivo de ser simples e básicos requisitos de desempenho, a proposta da ferramenta é ser uma opção, fácil e funcional para desenvolvedores de aplicações RDS buscando utilizar as novas funcionalidades do OpenFlow 1.3. Em suma, o software desenvolvido nesse projeto foi o primeiro comutador OpenFlow 1.3 do mundo. Lançado como projeto de código aberto, possibilitou a pesquisadores de todo o mundo a prototipagem e demonstração de soluções não possíveis anteriormente
Abstract: OpenFlow is the most prominent technology to enable Software Defined Networking (SDN). Designed as a control interface between switches and controllers, the protocol can be considered an instruction set to program the network forwarding logic. The first OpenFlow version attracted attention from both the industry and academy researchers interested in SDN promised benefits. Quickly, a toolset for OpenFlow 1.0 was available, which included switches, controllers, test and emulation software. When the protocol standardization process started by the Open Network Foundation, OpenFlow evolved fast and new specifications emerged in the last years. New features empowered the protocol and created enthusiasm; however projects of experimentation tools did not followed the OpenFlow fast pace. This work addresses one of these gaps, implementing an experimenter friendly OpenFlow 1.3 software switch. Driven by simplicity and basic performance requirements, the tool purpose is to be a functional and easy option for SDN developers that want to take advantage of the benefits brought by more recent OpenFlow versions. Overall, this project resulted in the open source release of the first OpenFlow 1.3 switch, allowing researchers from all around the globe to prototype and demonstrate solutions not possible until this work. Keywords: Computer Networks; Software Defined
Mestrado
Engenharia de Computação
Mestre em Engenharia Elétrica

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Yin, Hang. "Introducing Mode Switch in Component-Based Software Development." Doctoral thesis, Mälardalens högskola, Inbyggda system, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-28755.

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Анотація:

Self-adaptivity, characterized by the ability to dynamically adjust behavior at runtime, is a growing trend in the evolution of modern embedded systems. While self-adaptive systems tend to be flexible and autonomous, self-adaptivity may inevitably complicate software design, test and analysis. A strategy for taming the growing software complexity of self-adaptive systems is to partition system behaviors into different operational modes specified at design time. Such a multi-mode system can change behavior by switching between modes at runtime under certain circumstances. Multi-mode systems can benefit from a complementary approach to the software development of complex systems: Component-Based Software Engineering (CBSE), which fosters reuse of independently developed software components. However, the state-of-the-art component-based development of multi-mode systems does not take full advantage of CBSE, as reuse of modes at component level is barely addressed. Modes are often treated as system properties, while mode switches are handled by a global mode manager. This centralized mode management entails global information of all components, whereas the global information may be inaccessible in component-based systems. Another potential problem is that a single mode manager does not scale well, particularly at design time, for a large number of components and modes. In this thesis we propose a distributed solution to the component-based development of multi-mode systems, aiming for a more efficient and scalable mode management. Our goal is to fully incorporate modes in software component reuse, supporting reuse of multi-mode components, i.e., components able to run in multiple modes. We have developed a generic framework, the Mode-Switch Logic (MSL), which not only supports reuse of multi-mode components but also provides runtime mechanisms for handling mode switch. MSL includes three fundamental elements: (1) a mode-aware component model with the formal specification of reusable multi-mode software components; (2) a mode mapping mechanism for the seamless composition of multi-mode components; and (3) a mode-switch runtime mechanism which is executed by each component in isolation from its functional execution and coordinates the mode switches of different components without the need of global mode information. The mode-switch runtime mechanism has been verified by model checking in conjunction with mathematical proofs. We also provide a mode-switch timing analysis for the runtime mechanism to respect real-time requirements. MSL is dedicated to the mode aspect of a system irrespective of component execution semantics, thus independent of the choice of component models. We have integrated MSL in the ProCom component model with the extension of support for reuse of multi-mode components and distributed mode-switch handling. Although the distributed mode-switch handling of MSL is more flexible and scalable than the conventional centralized approach, when components are deployed on a single hardware platform and global mode information is available, centralized mode-switch handling is more efficient in terms of runtime overhead and mode-switch time. Hence, MSL is supplemented with a mode transformation technique to enhance runtime mode-switch efficiency by converting the distributed mechanism to a centralized mechanism. MSL together with the mode transformation technique has been implemented in a prototype tool where one can build multi-mode systems by reusing multi-mode components. The applicability of MSL is demonstrated in two proof-of-concept case studies.
ARROWS - Design Techniques for Adaptive Embedded Systems

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Marks, Lori J. "Addressing IEP Goals and Objectives Through Switch Accessible Software." Digital Commons @ East Tennessee State University, 2000. https://dc.etsu.edu/etsu-works/3714.

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Yin, Hang. "Mode switch for component-based multi-mode systems." Licentiate thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-16153.

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Анотація:

Component-based software engineering is becoming a prominent solution to the development of complex embedded systems. Since it allows a system to be built by reusable and independently developed components, component-based development substantially facilitates the development of a complex embedded system and allows its complexity to be better managed. Meanwhile, partitioning system behavior into multiple operational modes is also an effective approach to reducing system complexity. Combining the component-based approach with the multi-mode approach, we get a component-based multi-mode system, for which a key issue is its mode switch handling. The mode switch of such a system corresponds to the joint mode switches of many hierarchically organized components. Such a mode switch is not trivial as it amounts to coordinate the mode switches of different components that are independently developed. Since most existing approaches to mode switch handling assume that mode switch is a global event of the entire system, they cannot be easily applied to component-based multi-mode systems where both the mode switch of the system and each individual component must be considered, and where components cannot be assumed to have global knowledge of the system. In this thesis, we present a mechanism---the Mode Switch Logic (MSL)---which provides an effective solution to mode switch in component-based multi-mode systems. MSL enables a multi-mode system to be developed in a component-based manner, including (1) a mode-aware component model proposed to suit the multi-mode context; (2) a mode mapping mechanism for the seamless composition of multi-mode components and their mode switch guidance; (3) a mode switch runtime mechanism which coordinates the mode switches of all related components so that the mode switch can be correctly and efficiently performed at the system level; and (4) a timing analysis for mode switches realized by MSL. All the essential elements of MSL are additionally demonstrated by a case study.
ARROWS

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Zhao, Yimeng. "Déploiement du switch logiciel dans SDN-enabled Réseau environnement de virtualisation." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0029.

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Анотація:

Avec la prévalence de logicielisation, virtualisation est devenue une technologie dominante dans des data-centres et clouds. Deux aspects principaux de la logicielisation de réseaux sont Software Defined Network (SDN) et Network Function Virtualization (NFV), dont un des outils essentiel sont les switches logiciels, à l’opposition des switches matériaux. Les switches logiciels sont également indispensables pour le succès de NFV. Cette thèse vise à relever des défis principaux dans la logicielisation de réseaux. Spécifiquement, elle porte sur le déploiement des switches logiciels dans un réseau virtuel avec SDN
Due to the growing trend of “Softwarization”, virtualization is becoming the dominating technology in data center and cloud environment. Software Defined Network (SDN) and Network Function Virtualization (NFV) are different expressions of “Network Softwarization”. Software switch is exactly the suitable and powerful tool to support network softwarization, which is also indispensable to the success of network virtualization. Regarding the challenges and opportunities in network softwarization, this thesis aims to investigate the deployment of software switch in a SDN-enabled network virtualization environment

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Qian, Kai. "Development of Electroencephalography based Brain Controlled Switch and Nerve Conduction Study Simulator Software." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2320.

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Анотація:

This thesis investigated the development of an EEG-based brain controlled switch and the design of a software for nerve conduction study. For EEG-based brain controlled switch, we proposed a novel paradigm for an online brain-controlled switch based on Event-Related Synchronizations (ERDs) following external sync signals. Furthermore, the ERD feature was enhanced by 3 event-related moving averages and the performance was tested online. Subjects were instructed to perform an intended motor task following an external sync signal in order to turn on a virtual switch. Meanwhile, the beta-band (16-20Hz) relative ERD power (ERD in reverse value order) of a single EEG Laplacian channel from primary motor area was calculated and filtered by 3 event-related moving average in real-time. The computer continuously monitored the filtered relative ERD power level until it exceeded a pre-set threshold selected based on the observations of ERD power range to turn on the virtual switch. Four right handed healthy volunteers participated in this study. The false positive rates encountered among the four subjects during the operation of the virtual switch were 0.8±0.4%, whereby the response time delay was 36.9±13.0s and the subjects required approximately 12.3±4.4 s of active urging time to perform repeated attempts in order to turn on the switch in the online experiments. The aim of nerve conduction simulator software design is to create software that can be used by nerve conduction simulator to serve as a medical simulator or education tool to train novice physicians for nerve conduction study test. The real response waveform of 10 different upper limb nerves in conduction studies were obtained from the equipment used in real patient studies. A waveform generation model was built to generalize the response waveform near the standard stimulus site within study interest region based on the extracted waveforms and normal reference parameters of each study and stimulus site coordinates. Finally, based on the model, a software interface was created to simulate 10 different nerve conduction studies of the upper limb with 9 pathological conditions.

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Forgione, Alessandro. "Openflow e software-defined networking: l'evoluzione della rete programmabile." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7919/.

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Анотація:

Il paradigma “Software-Defined Networking” (SDN) ha suscitato recentemente interesse grazie allo sviluppo e all'implementazione di uno standard tecnologico come OpenFlow. Con il modello SDN viene proposta una rete programmabile tramite la separazione dell’unità di controllo e l'unità di instradamento, rendendo quindi i nodi di rete (come ad es. router o switch) esclusivamente hardware che inoltra pacchetti di dati secondo le regole dettate dal controller. OpenFlow rappresenta lo standard dominante nella tecnologia SDN in grado di far comunicare l'unità controller e l'hardware di uno o più nodi di rete. L'utilizzo di OpenFlow consente maggiore dinamicità e agevolazione nella personalizzazione della rete attraverso un'interfaccia utente, includendo svariate funzioni quali la modifica e l’automatizzazione delle regole di instradamento, la creazione di una rete virtuale dotata di nodi logici o la possibilità di monitorare il traffico accrescendo la sicurezza della propria rete.

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Falco, Luca. "Il protocollo OVSDB per la gestione di switch Ethernet virtuali." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17887/.

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Анотація:

Questa tesi si concentra nell’analizzare la Software-Defined Networking e in particolare il protocollo OVSDB (Open vSwitch Database) che permette di avere un’interfaccia di gestione moderna e programmatica per la gestione e l’automazione delle reti. Grazie ad esso è possibile gestire le implementazioni Open vSwitch attraverso degli appositi comandi da remoto i quali, sfruttando i metodi JSON-RPC, ci consentono di modificare il database di un server.

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Polívka, Michal. "Kvalita služby v konvergovaných systémech s prvky řízenými neuronovou sítí." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-233647.

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The Quality of Service (QoS) is in converged systems an important parameter. The dissertation thesis deals with research of QoS implementation into a newly developed network element. There was designed and implemented new protocol, based on the IP. The dissertation thesis deals with proposal of a new network element – the switch controlled by a neural network. During the research have been measured switches cross a performance classes. On the base of the measurement was designed the new four-port switch with switch fabric build on crossbar switch with an external control. The switch was designed with maximum QoS support. The switch fabric is controlled by the feedforward backpropagation neural network. The designed switch was modeled in the MATLAB and Simulink. The simulations prove that developed solution is functional.

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Gruesen, Michael G. "Towards an Ideal Execution Environment for Programmable Network Switches." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1468834070.

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Книги з теми "Software switch"

Colven, David. A common terminology for switch controlled software: A guide for software developers. Oxford: ACE Centre, 1990.

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Steve, McQuerry, ed. Cisco field manual: Catalyst switch configuration. Indianapolis, IN: Cisco Press, 2003.

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Final Cut Pro for Avid editors: A guide for editors making the switch. Berkeley, Calif: Peachpit, 2003.

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Office, General Accounting. Information technology: DOD needs to improve process for ensuring interoperability of telecommunications switches : report to congressional requesters. Washington, D.C. (P.O. Box 37050, Washington 20013): U.S. General Accounting Office, 2002.

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McQuerry, Stephen, and David Hucaby. Cisco Field Manual: Catalyst Switch Configuration. Cisco Press, 2002.

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(Editor), Mehdi Jazayeri, and Helmut Schauer (Editor), eds. Software Engineering-Esec/Fse '97: 6th European Software Engineering Conference Held Jointly With the 5th Acm Sigsoft Symposium on the Foundations of Software ... switze (Lecture Notes in Computer Science). Springer-Verlag Telos, 1997.

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A, T, A. &. T, and Mac Mendelsohn. Get Started with Microsoft PowerPoint 97! - Illustrated Interactive. Course Technology, 1997.

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Частини книг з теми "Software switch"

Ernst, Gidon, Gerhard Schellhorn, Dominik Haneberg, Jörg Pfähler, and Wolfgang Reif. "Verification of a Virtual Filesystem Switch." In Verified Software: Theories, Tools, Experiments, 242–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54108-7_13.

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Muthumanikandan, V., C. Valliyammai, and B. Swarna Deepa. "Switch Failure Detection in Software-Defined Networks." In Advances in Intelligent Systems and Computing, 155–62. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1882-5_13.

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Peng, Hong, Sofiène Tahar, and Yassine Mokhtari. "Compositional Verification of a Switch Fabric from Nortel Networks." In Formal Methods and Software Engineering, 560–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39893-6_32.

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Rajan, Sreeranga P., and Masahiro Fujita. "ATM switch design: Parametric high-level modeling and formal verification." In Algebraic Methodology and Software Technology, 437–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0000488.

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Kamrad, Mike. "An Application (Layer 7) Routing Switch with Ada95 Software." In Reliable Software Technologies — Ada-Europe’ 99, 250–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-48753-0_22.

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Zhang, Jianfei, Zhiyi Fang, Guannan Qu, Xiaohui Zhao, and S. Q. Zheng. "DiaCTC(N): An Improved Contention-Tolerant Crossbar Switch." In Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, 53–65. Heidelberg: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00738-0_5.

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Klimiankou, Yauhen. "Interpretizer: A Compiler-Independent Conversion of Switch-Based Dispatch into Threaded Code." In Software Technology: Methods and Tools, 59–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29852-4_4.

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AL-Tam, Faroq, Mohammad Ashrafi, and Noélia Correia. "On Controllers’ Utilization in Software-defined Networking by Switch Migration." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 52–61. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-05195-2_6.

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Kormentzas, G., and K. Kontovasilis. "Software Switch Extensions for Portable Deployment of Traffic Control Algorithms." In Next Generation Networks. Networks and Services for the Information Society, 264–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-40019-2_23.

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Stockmayer, Andreas, Stephan Hinselmann, Marco Häberle, and Michael Menth. "Service Function Chaining Based on Segment Routing Using P4 and SR-IOV (P4-SFC)." In Lecture Notes in Computer Science, 297–309. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59851-8_19.

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Abstract In this paper we describe P4-SFC to support service function chaining (SFC) based on a single P4-capable switch and off-the-shelf components. It utilizes MPLS-based segment routing for traffic forwarding in the network and SR-IOV for efficient packet handling on hosts. We describe the P4-SFC architecture and demonstrate its feasibility by a prototype using the Tofino Edgecore Wedge 100BF-32X as P4 switch. Performance test show that L2 throughput for VNFs on a host is significantly larger when connected via SR-IOV with the host’s network interface card instead of over a software switch.

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Тези доповідей конференцій з теми "Software switch"

Varis, Nuutti, and Jukka Manner. "Performance of a software switch." In 2011 IEEE 12th International Conference on High Performance Switching and Routing (HPSR). IEEE, 2011. http://dx.doi.org/10.1109/hpsr.2011.5986035.

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Rahimi, Reza, M. Veeraraghavan, Y. Nakajima, H. Takahashi, Y. Nakajima, S. Okamoto, and N. Yamanaka. "A high-performance OpenFlow software switch." In 2016 IEEE 17th International Conference on High Performance Switching and Routing (HPSR). IEEE, 2016. http://dx.doi.org/10.1109/hpsr.2016.7525645.

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Heere, Dominik. "Changing paradigm switch in software development roles." In 2010 IEEE 8th International Symposium on Intelligent Systems and Informatics (SISY 2010). IEEE, 2010. http://dx.doi.org/10.1109/sisy.2010.5647352.

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Rinearson, Linda E. "Software Development for the Zodiac Tactical Switch." In MILCOM 1985 - IEEE Military Communications Conference. IEEE, 1985. http://dx.doi.org/10.1109/milcom.1985.4795048.

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Spunei, Elisabeta, Ion Piroi, Cristian Muscai, and Florina Piroi. "Software module for switch electromechanics failure detection." In 2014 International Conference and Exposition on Electrical and Power Engineering (EPE). IEEE, 2014. http://dx.doi.org/10.1109/icepe.2014.6970076.

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Kurauchi, Andrew, Wenxin Feng, Ajjen Joshi, Carlos H. Morimoto, and Margrit Betke. "Swipe&Switch." In UIST '20: The 33rd Annual ACM Symposium on User Interface Software and Technology. New York, NY, USA: ACM, 2020. http://dx.doi.org/10.1145/3379350.3416193.

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Xu, Dengyuan. "A Novel Scheduling Algorithm Based on Buffered Crossbar Switch Fabric in EPFTS Switch." In 2008 International Conference on Computer Science and Software Engineering. IEEE, 2008. http://dx.doi.org/10.1109/csse.2008.1316.

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Mariano, Matheus Monteiro, Érica Ferreira Souza, André Takeshi Endo, and Nandamudi L. Vijaykumar. "A comparative study of algorithms for generating switch cover test sets." In XV Simpósio Brasileiro de Qualidade de Software. Sociedade Brasileira de Computação - SBC, 2016. http://dx.doi.org/10.5753/sbqs.2016.15122.

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Test case generation based on Finite State Machines (FSMs) has been extensively investigated due to its accuracy and simplicity. Several test criteria have been proposed in the literature to generate test cases based on FSMs. One of the oldest criteria is the Switch Cover. As a main feature, the Switch Cover criterion defines that all transition pairs of an FSM must be covered. The classical Switch Cover algorithm converts the FSM into a graph (known as Dual Graph); this graph is balanced, and, finally, traversed based on an Eulerian Cycle algorithm. In this context, considering the stage where an FSM is converted into a graph, this study investigates other search algorithms on graphs, namely Depth-First Search (DFS) and Breadth-First Search (BFS), for generating test sets from a Dual Graph. We presented an experimental study that compares the DFS, BFS algorithms with the Eulerian Cycle. The study was conducted with a set of random and real-world machines, taking into account the number of test cases, the test suite size, the average length of sequences and generation time.

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Jia, Xuya, Yong Jiang, and Zehua Guo. "Incremental Switch Deployment for Hybrid Software-Defined Networks." In 2016 IEEE 41st Conference on Local Computer Networks (LCN). IEEE, 2016. http://dx.doi.org/10.1109/lcn.2016.95.

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Zhao, Yimeng, Luigi Iannone, and Michel Riguidel. "Software Switch Performance Factors in Network Virtualization Environment." In 2014 IEEE 22nd International Conference on Network Protocols (ICNP). IEEE, 2014. http://dx.doi.org/10.1109/icnp.2014.69.

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Звіти організацій з теми "Software switch"

McAndrews, Don, Janice M. Ryan, and Priscilla Fowler. A Turbo-Team Approach to Establishing a Software Test Process at Union Switch and Signal. Fort Belvoir, VA: Defense Technical Information Center, April 1997. http://dx.doi.org/10.21236/ada324230.

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MAY, D. L. Solid Waste Information and Tracking System (SWITS) Software Requirements Specification. Office of Scientific and Technical Information (OSTI), March 2000. http://dx.doi.org/10.2172/801859.

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Clark, R. E. Solid Waste Information Tracking System (SWITS), Backlog Waste Modifications, Software Requirements Specification (SRS). Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/67204.

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