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Enabling Reachability Across multiple Domains Without controller Synchronization in SDN

Computers, Materials & Continua 2021年第10期69卷 945-965页

作者： Nauman Khan Rosli Bin Salleh Ihsan Ali Zahid Khan Noman Mazhar Roobaea Alroobaea Fahad Almansour Usman Ali Department of Computer System and Technology Faculty of Computer Science and Information TechnologyUniversity of MalayaMalaysia Department of Computer Science and IT University of MalakandPakistan Robotics and Internet-of-Things Lab Prince Sultan UniversityRiyadhSaudi Arabia Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Computer Science College of Sciences and Arts RassQassim UniversityBuraydah51452Saudi Arabia

Software-defined networking(SDN)makes network agile and flexible due to its programmable *** extensive network has multiple domains in SDN for the scalability and performance of the ***,the inter-domain link is also crucial for the stability of the entire network on the data plane *** than one inter-domain connection enhances the scalability of the data plane ***,it faces a reachability problem with the principal root,which causes forwarding loops and packet drops in the network,thereby degrading network *** proposed solution is a multiple controller architecture;however,this approach increases the complexity and affects network ***,in this study,we propose a framework that avoids forwarding loops and packet drops without the synchronization of multiple-domain controllers in the network using an avoid loop with test packet ***,we collect the link status for improved routing and load balancing for the upcoming flow across inter-domain links to prevent congestion and increase throughput in real *** proposed methodology can significantly reduce the controller workload against multiple controller architecture,minimize flow setup latency,and improve throughput.

关键词： multiple domain packet drop forwarding loop load balancing SDN multiple controller

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An Improved Switch Migration Method-Based Efficient Load Balancing for multiple controllers in Software-Defined Networks

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JOURNAL OF CASES ON INFORMATION TECHNOLOGY 2023年第1期25卷 1页

作者： Jiru, Muktar Abdella Adere, Ketema Krishna, T. Gopi Perumalla, Janaki Ramulu Adama Sci & Technol Univ Adama Ethiopia

The present work proposed an improved switch migration method (ISMM) for balancing the controller load to migrate the switch from overloaded to under-loaded controller. This method is used on each controller during controller load balance in order to decide the state of controllers. The implementation was conducted using the Mininet simulation tool. The performance of the proposed solution has been evaluated by using throughput, response time, and packet loss metrics. Accordingly, the simulation results indicated that this method has improved throughput by 7.6% over SSMS and 1.8% over CAMD, improved response time 8.3% over SSMS and 4% over CAMD, and improved the packet loss 8% over SSMS and 1.3% over CAMD during the incoming traffic load between 501p/s and 5000p/s. Thus, the performance of ISMM has shown efficient results over SSMS and CAMD among all assessed metrics by balancing the load between controllers.

关键词： CAMD controller Load Imbalance ISMM multiple controller SDN SSMS

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S² DN : Design of robust authentication protocol with session key establishment in multi-controller based software-defined VANETs

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VEHICULAR COMMUNICATIONS 2024年 47卷

作者： Pali, Isha Abdussami, Mohammad Amin, Ruhul Al-Shehari, Taher Al-Razgan, Muna Alfakih, Taha Univ Queensland IIT Delhi Acad Res Delhi India IIIT Naya Raipur Dept Comp Sci & Engn Raipur 493661 Chhattisgarh India King Saud Univ Dept Selfdev Skills Comp Skills Common Year Deanship 1 Riyadh 11362 Saudi Arabia King Saud Univ Coll Comp & Informat Sci Dept Software Engn Riyadh 11345 Saudi Arabia King Saud Univ Coll Comp & Informat Sci Dept Informat Syst Riyadh 11543 Saudi Arabia

Advancements in technology and the adoption of innovative developments have significantly simplified our lives. One notable innovation in the networking domain is Software Defined Networking (SDN), which revolutionizes the network layer by enabling centralized network administration and re -programmability. SDN technology finds application in diverse fields such as Vehicular Ad -hoc Networks (VANETs), Wireless Sensor Networks (WSNs), Internet of Things (IoT) communications, and cloud -fog computing. The integration of SDN technology into VANET systems has notably improved network performance but has also raised security concerns. To tackle this issue, this paper focuses on devising an authentication mechanism to facilitate secure communication across various VANET levels by establishing a shared session key. Moreover, the research proposes a method to mitigate the challenge of single points of failure, a typically difficult issue to address. To ensure the security of all confidential information during protocol execution, simulations are conducted using the Scyther tool. Additionally, an informal security analysis is performed, demonstrating the robustness of the proposed protocol. The proposed protocol also performs outstanding in terms of performance results

关键词： SDN Security threats VANETs multiple controller Scyther simulation Authentication

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A comprehensive survey of load balancing techniques in software-defined network

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JOURNAL OF NETWORK AND COMPUTER APPLICATIONS 2021年 174卷 102856-102856页

作者： Hamdan, Mosab Hassan, Entisar Abdelaziz, Ahmed Elhigazi, Abdallah Mohammed, Bushra Khan, Suleman Vasilakos, Athanasios V. Marsono, M. N. Univ Teknol Malaysia Fac Engn Sch Elect Engn Johor Baharu Malaysia Univ Teknol Malaysia Fac Engn Sch Comp Johor Baharu Malaysia Future Univ Fac Comp Sci Khartoum Sudan Northumbria Univ Dept Comp & Informat Sci Newcastle Upon Tyne NE1 8ST Tyne & Wear England Univ Technol Sydney Sch Elect & Data Engn Sydney NSW 2007 Australia

A software-defined network (SDN) separates the network control plane from the data forwarding plane. SDN has shown significant benefits in many ways compared to conventional non-SDN networks. However, traffic distribution in SDN impacts efficiency and raises many other challenges. For instance, uneven load distribution in the SDN significantly impacts the network performance. Hence, several SDN load balancing (LB) techniques have been introduced to improve the efficiency of SDN. In this article, we provide a thematic taxonomy of LB in SDN, considering several parameters from the past technical studies such as the objectives of LB, data plane LB techniques, control plane LB techniques, other aspects of data plane/control plane LB as well as the performance metrics for LB techniques. Furthermore, useful insights on LB and a comparative analysis of various promising SDN LB techniques are also included in the survey. Finally, existing challenges and future direction on SDN LB techniques are highlighted.

关键词： Load balancing Software-defined network multiple controller Distributed controller

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DSL: Dynamic and Self-Learning Schedule Method of multiple controllers in SDN

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ETRI JOURNAL 2017年第3期39卷 364-372页

作者： Li, Junfei Wu, Jiangxing Hu, Yuxiang Li, Kan Natl Digital Switching Syst Engn & Technol R&D Ct Dept Comp Sci Zhengzhou Peoples R China Natl Digital Switching Syst Engn & Technol R&D Ct Zhengzhou Peoples R China

For the reliability of controllers in a software defined network (SDN), a dynamic and self-learning schedule method (DSL) is proposed. This method is original and easy to deploy, and optimizes the combination of multiple controllers. First, we summarize multiple controllers' combinations and schedule problems in an SDN and analyze its reliability. Then, we introduce the architecture of the schedule method and evaluate multi-controller reliability, the DSL method, and its optimized solution. By continually and statistically learning the information about controller reliability, this method treats it as a metric to schedule controllers. Finally, we compare and test the method using a given testing scenario based on an SDN network simulator. The experiment results show that the DSL method can significantly improve the total reliability of an SDN compared with a random schedule, and the proposed optimization algorithm has higher efficiency than an exhaustive search.

关键词： SDN multiple controller Reliability Combine and schedule Self-learning

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Load Distribution of Software-Defined Networking Based on controller Performance 15

Load Distribution of Software-Defined Networking Based on Co...

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15th International Joint Conference on Computer Science and Software Engineering (JCSSE)

作者： Konglar, Kanok Somchit, Yuthapong Chiang Mai Univ Fac Engn Dept Comp Engn Grad Sch Chiang Mai Thailand Chiang Mai Univ Fac Engn Dept Comp Engn Ctr Excellent Nat Disaster Management Chiang Mai Thailand

ISBN: (纸本)9781538655382

Software-Defined Networking (SDN) enabled by OpenFlow is a new paradigm of the network that is managed by a single centralized controller. In a large-scale network, distributed controller mechanism using multiple controllers is introduced to solve a problem of single point of failure. This mechanism requires load balancing to balance the loads of the controllers. The current load controller methods still have some issues. This work proposes a load balance method called Load Distribution mechanism and an algorithm based On controller Performance (LDOP). The LDOP can reduce loads of the overloaded controller by migrating switches to other controllers. Moreover, LDOP can reduce the impact when many controllers are overloaded. In this work, we evaluate the performance of LDOP by simulation. The experimental results show that LDOP mechanism can reduce loads of overloaded controller and does not make other controllers become overloaded. In case of many controllers are overloaded, it also reduces the impact of this. In addition, LDOP also reduces the number of messages that controllers use in load balancing compared to other protocols.

关键词： SDN multiple controller load balancing switch migration

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Ensuring data consistency for high available storage feature on distantly-multiple storage devices 5

Ensuring data consistency for high available storage feature...

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5th IIAI International Congress on Advanced Applied Informatics (IIAI-AAI)

作者： Kawaguchi, Tomohiro Mori, Nobuhito Komoda, Norihisa Hitachi Ltd Ctr Technol Innovat Storage Syst Dept R&D Grp Kanagawa Japan Univ Tokyo Inst Ind Sci Tokyo Japan Code Solut KK Osaka Japan

ISBN: (纸本)9781467389853

This study proposes "Ticket method" for a remote copy system in 100km distance multi-site environment to avoid data corruption caused by process and communication overtaking. The method notifies failure event occurred in a primary storage device to a secondary storage device using ticket information. Increase of latency and table size for applying Ticket method is little. As a result of evaluation and comparison with traditional Sequence Number method, it was found latency time of Ticket method is 1/3 as that of Sequence Number method.

关键词： storage multiple controller high availability process overtaking data consistency disaster recovery remote copy CAP Theorem

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Ensuring data consistency for high available storage feature on distantly-multiple storage devices

Ensuring data consistency for high available storage feature...

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IIAI International Congress on Advanced Applied Informatics

作者： Tomohiro Kawaguchi Nobuhito Mori Norihisa Komoda Storage Syst. Dept. Hitachi Ltd. Hitachi Japan Inst. of Ind. Sci. Univ. of Tokyo Tokyo Japan Code Solution K.K. Osaka Japan

ISBN: (纸本)9781467389860

关键词： Storage multiple controller High availability Process overtaking Data consistency Disaster recovery Remote copy CAP Theorem

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A NONLINEAR PID-BASED multiple controller INCORPORATING A MULTILAYERED NEURAL NETWORK LEARNING SUBMODEL

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CONTROL AND INTELLIGENT SYSTEMS 2006年第3期34卷 177-185页

作者： Zayed, A. S. Hussain, A. Grimble, M. J. Department of Computing Science and Mathematics University of Stirling FK9 4LA United Kingdom Industrial Control Centre Department of Electronic and Electrical Engineering University of Strathclyde Glasgow G1 1XW United Kingdom

A new nonlinear minimum-variance adaptive proportional integral derivative (PID) based multiple controller, incorporating a multi-layered neural network learning submodel, is presented. The unknown non-linear plant is represented by an equivalent stochastic model consisting of a linear least-squares-based submodel plus a non-linear multi-layered back propagation (BP) neural network-based learning submodel. The proposed multiple controller methodology provides the designer with a choice of using either a conventional PID self-tuning controller, a PID structure-based pole-placement controller, or a newly proposed PID structurebased pole-zero placement controller through simple switching. The novel PID structure based pole-zero placement controller employs an adaptive mechanism, which ensures that the closedloop poles and zeros are located at their prespecified positions. The switching decision between the different nonlinear fixed structure controllers is made manually in the present case but can be automated using fuzzy logic or stochastic learning automata techniques. Simulation results using a nonlinear plant model demonstrate the effectiveness of the proposed multiple controller with respect to tracking set-point changes. The aim is to achieve a desired speed of response while penalizing excessive control action, for applications in nonminimum phase and unstable systems.

关键词： multiple controller PID pole placement zero-pole placement learning submodel neural networks

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A two-way model for motor control of redundant systems

A two-way model for motor control of redundant systems

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22nd Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society

作者： Karniel, A Meir, R Inbar, GF Technion Israel Inst Technol Dept Elect Engn IL-32000 Haifa Israel

ISBN: (纸本)078036466X

The biological motor control system is an adaptive system exhibiting vast redundancy at all its hierarchical levels, Redundancy improves reliability and flexibility and might be the salient reason for the superb dexterity of human motor control, However, introducing redundancy in an inversely controlled object results in an ill-posed problem. We describe a general two-way model for redundancy control. This model includes the selection of a single solution by the dynamics of the system at the lower level, and a multiple controller that ran use different solutions under different circumstances at the higher level, We demonstrate the role of the system dynamics in facilitating the stereotypical features of rapid movements, and suggest an architecture as wed as a theoretical framework for many-to-one function approximation and inversion.

关键词： inverse problem redundancy multiple controller rapid movements motor control

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