共查询到18条相似文献,搜索用时 140 毫秒
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基于虚拟化的中间件盒子的模型,采用x86架构的电脑硬件设备,依托虚拟化平台构建了一种集成了路由器、语音服务器、虚拟桌面等服务的虚拟中间件盒子。该虚拟中间件盒子采用了中间件盒子的概念,即在标准的服务器上运行开源的虚拟化平台,如XEN、KVM等,并运用网络功能虚拟化(NFV)的理念和软件定义网络(SDN)的理念进行控制管理,最终实现为每个组织、企业、个人提供虚拟通信网络服务(网络功能虚拟化)和虚拟运营服务。 相似文献
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云计算数据中心网络虚拟化技术 总被引:1,自引:0,他引:1
云计算带来的超大规模数据中心建设,对数据中心网络提出了新的需求。网络虚拟化技术是解决这些新需求的有效手段,通过系统论述数据中心网络虚拟化技术中涉及的控制平面虚拟化技术和数据平面虚拟化技术。分析了业界主要厂商的技术实现和新的虚拟化标准协议的技术原理,为数据中心网络虚拟化技术的发展提出了一个较为清晰的演进路径。 相似文献
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网络虚拟化是将多个硬件或软件网络资源及相关的网络功能集成到一个可用的软件中统一管理和控制的过程,并且对于网络应用而言,该虚拟网络环境的实现方式是透明的。基于网络虚拟化技术,相关物理网络资源被抽象、逻辑划分和组合,并在此基础上被调度和管理。网络虚拟化技术是网络精细化运营的基础,网络虚拟化技术分布在企业网络应用的各个层面与各个方面,不管是用户还是企业网络管理者都离不开网络虚拟化。 相似文献
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李明 《电信工程技术与标准化》2012,25(4):39-43
云计算带来的超大规模数据中心建设,对数据中心网络提出了新的需求,网络虚拟化技术是解决这些新需求的有效手段,本文通过系统论述数据中心网络虚拟化技术中涉及的控制平面虚拟化技术和数据平面虚拟化技术,分析了业界主要厂商的技术实现和新的虚拟化标准协议的技术原理,为数据中心网络虚拟化技术的发展提出了一个较为清晰的演进路径。 相似文献
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《现代电子技术》2017,(6)
受异常大数据区域参数波动大的影响,市面上现存的虚拟化网络异常大数据区域挖掘平台可应用性和稳定性不高,与虚拟化网络连接成功率较低。为此,设计新型虚拟化网络异常大数据区域挖掘平台。该平台由虚拟化网络控制模块、挖掘模块和虚拟层组成。虚拟化网络控制模块利用SDN控制器对虚拟化网络进行控制,保证其中的大数据能够被流畅、安全、稳定地挖掘和传输。挖掘模块先对虚拟化网络控制模块传输来的大数据进行整流和滤波,再利用报警电路挖掘出其中的异常大数据,进而搭建出异常大数据区域,并对其进行完整存储。软件给出虚拟层的功能图,以及平台对异常大数据的挖据代码。经实验验证可知,所设计的平台拥有较高的可应用性和稳定性,且与虚拟化网络连接的成功率较高。 相似文献
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In order to reduce cost and complexity,fiber-wireless(FiWi) networks emerge,combining the huge amount of available bandwidth of fiber networks and the flexibility,mobility of wireless networks.However,there is still a long way to go before taking fiber and wireless systems as fully integrated networks.In this paper,we propose a network visualization based seamless networking scheme for FiWi networks,including hierarchical model,service model,service implementation and dynamic bandwidth assignment(DBA).Then,we evaluate the performance changes after network virtualization is introduced.Throughput for nodes,bandwidth for links and overheads leaded by network virtualization are analyzed.The performance of our proposed networking scheme is evaluated by simulation and real implementations,respectively.The results show that,compared to traditional networking scheme,our scheme has a better performance. 相似文献
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Lü Bo HUANG Tao WANG Zhen-kai CHEN Jian-ya LIU Yun-jie LIU Jiang Key Laboratory of Universal Wireless Communications Ministry of Education Beijing University of Posts Telecommunications Beijing China 《中国邮电高校学报(英文版)》2011,(5):87-94
Network virtualization is considered as a powerful way to deploy different network architectures and protocols over a shared physical infrastructure.Virtual network(VN)embedding plays an important role in the network virtualization environment.Virtual network embedding is mainly about mapping virtual nodes and virtual links onto the physical network resources efficiently.However,load balancing of substrate network has not received much consideration.This paper proposes an adaptive virtual network mapping algorithm based on status feedback.The main contribution is to embed the virtual network requests according to the current load distribution of substrate network.This adaptive algorithm differentiates the residual bandwidth of substrate links and takes full advantage of the multi-path to improve the load balancing of the substrate network.Simulation experiments show that the proposed algorithm improves the load distribution of substrate network distinctly while reducing the average substrate link stress significantly. 相似文献
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随着虚拟化技术的引入,在单台服务器上虚拟出多个VM,无可避免的会造成网络层次增加,并由此引发出路由环路,广播风暴,单点故障,网络延迟,布线杂乱等各种问题。本文根据虚拟化平台建设过程中的一些经验,总结了虚拟化平台下网络架构需要注意的事项,并结合业界最新的技术趋势,探索虚拟化平台下网络的构想。 相似文献
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5G与边缘计算等应用场景的兴起,使得计算、存储等基础IT资源离散部署与多级部署成为一大发展趋势,如何结合网络基础设施为用户提供更为便捷的、定制化的专属服务,提高整体资源利用率,成为网络技术发展的新方向。重点分析了网络虚拟化的特征与发展、资源发展与融合趋势以及新兴业务对资源供给新需求等,提出了一种基于多维资源融合化的网络虚拟化架构,即通过在网络虚拟化架构中引入资源发现与资源交易过程,将多方、异构的资源有机整合成统一资源平面,在此基础上根据用户需求进行资源切割与虚拟化,以适应新兴业务对资源需求快速灵活的特点,并能够有效提高资源利用效率,降低运营成本。由于资源联合优化涉及多个领域的研究,网络虚拟化架构将随着业务需求与商业模式的发展而不断完善,以期为未来业务发挥重要作用。 相似文献
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Xiaofeng Lu Kun Yang Yingting Liu Dongdai Zhou Shuhua Liu 《Wireless Communications and Mobile Computing》2015,15(2):295-308
Following the wired network virtualization, virtualization of wireless networks becomes the next step aiming to provide network or infrastructure providers with the ability to manage and control their networks in a more dynamic fashion. The benefit of the wireless mobile network virtualization is a more agile business model where virtual mobile network operators (MNOs) can request and thus pay physical MNOs in a more pay‐as‐you‐use manner. This paper presents some resource allocation algorithms for joint network virtualization and resource allocation of wireless networks. The overall algorithm involves the following two major processes: firstly, to virtualize a physical wireless network into multiple slices, each representing a virtual network, and secondly, to carry out physical resource allocation within each virtual network (or slice). In particular, the paper adopts orthogonal frequency division multiplexing (OFDM) as its physical layer to achieve more efficient resource utilization. Therefore, the resource allocation is conducted in terms of sub‐carriers. Although the motivation and algorithm design are based on IEEE 802.16 or WiMAX networks, the principle and algorithmic essence are also applicable to other OFDM access‐based wireless networks. The aim was to achieve the following design goals: virtual network isolation and resource efficiency. The latter is measured in terms of network throughput and packet delivery ratio. The simulation results show that the aforementioned goals have been achieved. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献