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SDN-Based Virtual Machine Management for Cloud Data Centers

机译:基于SDN的云数据中心虚拟机管理

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Software-defined networking (SDN) is an emerging paradigm to logically centralize the network control plane and automate the configuration of individual network elements. At the same time, in cloud data centers (DCs), although network and server resources are collocated and managed by a single administrative entity, disjoint control mechanisms are used for their respective management. In this paper, we propose a unified server-network resource management for such converged information and communication technology (ICT) environments. We present a SDN-based orchestration framework for live virtual machine (VM) management that exploits temporal network information to migrate VMs and minimize the network-wide communication cost of the resulting traffic dynamics. A prototype implementation is presented, and a cloud DC testbed is used to evaluate the impact of diverse orchestration algorithms. Our live VM management has been shown to reduce the network-wide communication cost, especially for the high-cost and congestion-prone core and aggregation layers of the DC. Our results show an increase in network-wide throughput by over six times, as well as over 70% communication cost reduction by migrating less than 50% of the VMs.
机译:软件定义网络(SDN)是一种新兴的范例,可以在逻辑上集中网络控制平面并自动配置单个网络元素。同时,在云数据中心(DC)中,尽管网络和服务器资源是由单个管理实体配置和管理的,但不相交的控制机制仍用于其各自的管理。在本文中,我们针对此类融合的信息和通信技术(ICT)环境提出了统一的服务器网络资源管理方案。我们提出了一种用于实时虚拟机(VM)管理的基于SDN的编排框架,该框架利用临时网络信息来迁移VM,并最大程度地减少由此产生的流量动态变化引起的全网通信成本。提出了一个原型实现,并使用云DC测试台评估了各种编排算法的影响。我们的实时VM管理已被证明可以减少网络范围内的通信成本,尤其是对于DC的高成本和易拥塞的核心层和聚合层而言。我们的结果表明,通过迁移少于50%的VM,网络范围的吞吐量提高了六倍以上,通信成本降低了70%以上。

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