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电信运营级虚拟化运营管理技术探析 总被引:1,自引:0,他引:1
为了充分发挥虚拟化技术的优势,必须有一个高效统一的运营管理平台,实现对虚拟化产品的全面管理和科学运营。电信运营商拥有大规模的通信网络基础和IT基础设施,在实现虚拟化平台的大规模公众运营上具有得天独厚的优势。文章首先描述了当前虚拟化运营管理的主要产品及其特点,接着从运营商的角度提出了虚拟化运营管理需要具备的主要功能,最后对虚拟化运营管理的实现及发展进行了分析和展望。 相似文献
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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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网络功能虚拟化将传统网络设备的软件功能和硬件功能解耦合,从而降低网络的投资和运营成本,提高新业务的部署效率。SDN为网络功能虚拟化的承载网提供了解决方案,确保网络功能虚拟化的实现。主要对IMS核心网网络功能虚拟化方案进行了论述,并基于SDN架构提出了IMS核心网虚拟化环境下的承载网组网方案。 相似文献
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虚拟化网络技术是指在一个物理网络上同时运行多个互不干扰的逻辑网络,各个逻辑网络都各自有着特定的拓扑及路由算法.通过对网络设备的虚拟整合,实现网络流通量路径的分离,完成网络路径的虚拟化,提高关键业务在虚拟化网络中的服务保障.服务器虚拟化技术通过运用虚拟化的技术充分发挥服务器的硬件性能,能够在确保企业投入成本的同时,提高运营效率,节约经济成本和空间浪费.文中对虚拟化的网络技术进行了介绍与分析,介绍了虚拟化网络技术的概念及原理,讨论了VMware esxi服务器虚拟化、VMware vSphere 关键技术,及实现服务器虚拟化所需要的主要组成元素及技术. 相似文献
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全球大多数主流运营商已转向5G独立组网架构,并开始了5G独立组网架构的商用部署。5G核心网采用网络功能虚拟化技术,将通用的计算、存储、网络等硬件形成多种虚拟资源,基于需要实现网络功能及资源动态灵活性部署。随着网络功能虚拟化的5G核心网的大规模商用部署,5G核心网的运营维护也面临新的挑战。分析了5G核心网的虚拟化部署方案带来的运营维护工作难点,提出5G核心网运营维护系统建设的架构和方案,并在此基础上提出5G核心网云网一体化运营维护组织架构建议,为5G核心网云网一体化运维工作提供参考。 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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随着网络技术发展,以网络虚拟化为手段解决TCP/IP网络体系结构僵化问题已成为未来网络领域发展的主流方向之一.SDN(software defined networking,软件定义网络)作为一种新兴的网络体系结构,为网络虚拟化提供了有效的解决方案.首先总结了当前具有代表性的SDN网络虚拟化平台,并对比了SDN与传统网络环境中部署虚拟网的区别,然后针对SDN网络虚拟化平台中的虚拟网络映射问题,提出一种时延敏感的虚拟化控制器放置算法,最后通过实验验证了该算法在提高网络资源的利用效率的同时,保证了控制器与底层交换机的通信时延在可接受范围之内. 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
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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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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