检索结果-南通市图书馆

基于sdn弹性光网络的电力通信网智能业务编排方法

在线全文

学校读者我要写书评

暂无评论

哈尔滨理工大学学报 2024年第3期29卷 99-106页

作者：亢中苗吴赞红张珮明黄东海包宇奔卢文冰张孙烜广东电网有限责任公司电力调度控制中心广州510600 华北电力大学电气与电子工程学院北京102206

针对电力通信网差异化业务编排问题,首先构造基于sdn弹性光网络的电力通信网框架,通过业务层与sdn控制层完成配电网数据交互,支撑配网多种不同优先级电力通信网业务的正常运行。其次,提出基于自适应业务优先级感知的电力通信网智能业务... 详细信息

针对电力通信网差异化业务编排问题,首先构造基于sdn弹性光网络的电力通信网框架,通过业务层与sdn控制层完成配电网数据交互,支撑配网多种不同优先级电力通信网业务的正常运行。其次,提出基于自适应业务优先级感知的电力通信网智能业务编排算法,根据不同业务优先级自适应调节探索因子,权衡不同优先级业务摇臂选择时的探索和利用的倾向,从而保证高优先级业务的高可靠传输的同时降低网络开销。最后,通过算例分析验证所提技术在能效、时延等方面的性能优势。文章的研究内容能为电力通信网差异化业务数据流低时延高效传输提供参考,从而支撑电力通信网高效运行。

关键词：电力通信网 sdn 弹性光网络业务编排业务优先级感知

sdn中区分交换机等级的控制器负载均衡算法

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

计算机应用与软件 2020年第6期37卷 142-147,153页

作者：蒋雯丽梁思远赵芳利赵峰王聪一西安邮电大学通信与信息工程学院陕西西安710121

针对软件定义网络(Software Definition Network,sdn)多控制器负载不均衡问题,提出基于Q-learning算法区分交换机等级的sdn控制器负载均衡算法。依据交换机所影响网络资源划分等级,在进行控制器负载均衡的同时避免高等级交换机连接至同... 详细信息

针对软件定义网络(Software Definition Network,sdn)多控制器负载不均衡问题,提出基于Q-learning算法区分交换机等级的sdn控制器负载均衡算法。依据交换机所影响网络资源划分等级,在进行控制器负载均衡的同时避免高等级交换机连接至同一控制器,提升全网络生存性。仿真结果表明:该算法可以有效地实现控制器负载均衡功能,同时可以有效根据控制器等级进行迁移分配,限制了单个控制器故障对全网资源的影响,提升了网络生存性。

关键词： sdn 交换机强化学习控制器负载均衡

Research on Sharepoint-Based sdn Enterprise Collaboration Platform

在线全文

学校读者我要写书评

暂无评论

微计算机信息 2010年第18期26卷 36-37,75页

作者： CHEN Li XU Fu-yuan ZENG Yong-mei(Business School,University of Shanghai for Science and Technology,Shanghai,200093,China)

To achieve the global cooperation and win-win situation,sdn(Supply and Demand Network with multi-functional and opening characteristics for enterprise,sdn) enterprises need to build sdn collaboration platform to ensure the smooth supply-demand flows and to realize the collaboration *** paper discusses the importance of building sdn enterprise collaboration platform(sdn-ECP),and then describes the framework of sdn-ECP.

关键词： sdn Sharepoint Collaboration Platform Knowledge Management

Contribution to the Optimization of the Energy Consumption in sdn Networks

在线全文

学校读者我要写书评

暂无评论

Journal of Sensor Technology 2018年第3期8卷 59-67页

作者： Lagasane Kra Yaké Gondo Bi Tra Gooré Olivier Asseu Institut National Polytechnique F. Houphouë t Boigny (INP-HB) Yamoussoukro C&#244 te d’Ivoire Université Félix Houphouë t Boigny (UFHB) Abidjan C&#244 te d’Ivoire Ecole Supérieure Africaine des TIC (ESATIC) Abidjan C&#244 te d’Ivoire

With the advent of new technologies such as IoT (Internet of Things) and Big Data, the increase in users and their different communications have led to a significant increase in energy consumption in network equipment. A new networking technology called sdn (Software Defined Network) is born. It aims to make network management easier. The sdn consists of decoupling the control plane that is the brain, the data plane or the muscles of the network. It allows the programmability of network devices and also the redirection of flows. One or more centralized controllers use algorithms to act remotely on network devices. Because of its operation, this new technology offers opportunities to improve network performance and optimize energy consumption. In this paper, we will use this technology (sdn) to suspend links or routers when they are not used while taking into account the congestion that degrades the quality of service in the network. We have formulated this problem as a linear integer program and proposed algorithms to process it in normal period and peak period. We have used the OMNET ++ simulator to evaluate our algorithms. Thus, our approach showed that 87.5% of ports and 33.33% of links could be shut down to save energy.

关键词： IoT sdn Big Data Optimization Peak Period Normal Period Heuristic Algorithms

A Modular Simulation Tool of an Orchestrator for Allocating Virtual Resources in sdn

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

通讯和计算机（中英文版） 2014年第1期11卷 88-99页

作者： Aurelio Javier Garcia Cristina Cervello-Pastor Yury Jimenez Department of Telematics Engineering Universitat Politbcnica de Catalunya Barcelona 08860 Spain

DDoS Attack Detection Method for Space-Based Network Based on sdn Architecture

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

ZTE Communications 2020年第4期18卷 18-25页

作者： JIA Min SHU Yuejie GUO Qing GAO Zihe XIE Suofei Communication Research Center School of Electronics and Information EngineeringHarbin Institute of TechnologyHarbin 150006China Institute of Telecommunication Satellite China Academy of Space TechnologyBeijing 100094China

With the development of satellite communications,the number of satellite nodes is constantly increasing,which undoubtedly increases the difficulty of maintaining network *** software defined network(sdn) with traditional space-based networks provides a new class of ideas for solving this ***,because of the highly centralized network management of the sdn controller,once the sdn controller is destroyed by network attacks,the network it manages will be paralyzed due to loss of *** of the main security threats to sdn controllers is Distributed Denial of Service(DDoS) attacks,so how to detect DDoS attacks scientifically has become a hot topic among sdn security *** paper proposes a DDoS attack detection method for space-based networks based on sdn *** attack detection method combines the optimized Long Short-Term Memory(LSTM) deep learning model and Support Vector Machine(SVM),which can not only make classification judgments on the time series,but also achieve the purpose of detecting and judging through the flow characteristics of a period of *** addition,it can reduce the detection time as well as the system burden.

关键词： space-based network sdn DDoS attack LSTM SVM

基于NSGA-II算法的sdn多控制器部署优化机制

在线全文

学校读者我要写书评

暂无评论

通信学报 2018年第A1期39卷 263-270页

作者：吕兴燕王兴伟张爽黄敏东北大学软件学院辽宁沈阳110169 东北大学计算机科学与工程学院辽宁沈阳110169 东北大学信息科学与工程学院辽宁沈阳110819

在sdn体系结构中,控制器是整个网络的核心,控制器的合理部署是提高网络性能的关键。目前关于多控制器部署问题的研究,大多数只考虑了时延或者负载,采用多目标优化算法NSGA-II(non-dominated sorting ingeneticalgorithms)针对交换机到... 详细信息

在sdn体系结构中,控制器是整个网络的核心,控制器的合理部署是提高网络性能的关键。目前关于多控制器部署问题的研究,大多数只考虑了时延或者负载,采用多目标优化算法NSGA-II(non-dominated sorting ingeneticalgorithms)针对交换机到控制器时延、控制器之间时延、控制路径故障比例以及平均交换机拥有从控制器数量这4个优化目标对控制器的部署进行优化。实验结果表明,所设计的机制对4个目标函数的优化效果明显,可以为控制器挑选最优的放置位置。

关键词： sdn 多控制器 NSGA-II算法部署优化

A Dynamic Access Control Method for sdn

在线全文

学校读者我要写书评

暂无评论

Journal of Computer and Communications 2019年第10期7卷 105-115页

作者： Dexian Chang Wanzhong Sun Yingjie Yang Tingting Wang Third Institute of Information Engineering University ZhengzhouChina Henan Key Laboratory of Information Security ZhengzhouChina Second Institute of Information Engineering University ZhengzhouChina The North Sea Fleet of PLA Navy QingdaoChina.

Aiming at the problem that network topology changes frequently in sdn (Software Defined Network) environment and it is difficult to implement fine-grained access control, utilizing the characteristics of sdn transfer control separation and software programming, the ABAC model (Attribute-Based Access Control) is extended by introducing security level, and the security level is defined for the attributes of subject and object to establish the access mapping relationship based on mandatory access rules. At the same time, with secure access path as sdn access control attribute, a dynamic generation method of access control path based on PSO (Particle Swarm Optimization) algorithm is designed to ensure the security of access data flow. The prototype system experiments show that the proposed method takes into account the fine-grained and dynamic requirements of sdn access control, and improves the access security of sdn while ensuring the access efficiency.

关键词： Access Control Security sdn ABAC Dynamic

基于eduroam和sdn的无线漫游认证授权技术研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

华东师范大学学报（自然科学版） 2015年第B3期 157-162页

作者：公绪晓付中南吕洁北京大学计算中心北京100871

无线漫游需求日益增长并多样化,对无线漫游认证和细粒度授权机制的研究十分必要,sdn技术的出现使快速灵活地部署无线漫游细粒度授权策略变得可能.本文分析了eduroam无线漫游的认证机制和sdn网络的工作流程,搭建测试环境对eduroam认证进... 详细信息

无线漫游需求日益增长并多样化,对无线漫游认证和细粒度授权机制的研究十分必要,sdn技术的出现使快速灵活地部署无线漫游细粒度授权策略变得可能.本文分析了eduroam无线漫游的认证机制和sdn网络的工作流程,搭建测试环境对eduroam认证进行了部署实践,并提出了基于sdn的eduroam细粒度授权模型.

关键词： eduroam 无线漫游 sdn EAP认证授权