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2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM)最新文献

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AMNESiA: Affinity measurement platform for NFV-enabled networks 失忆症:用于nfv网络的亲和度测量平台
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987403
A. Jacobs, R. Santos, M. Franco, E. Scheid, R. Pfitscher, L. Granville
AMNESiA is an affinity measurement platform for NFV-enabled networks, designed to consolidate and interpret existing monitoring data into an affinity metric, aiding operators to identify affinity and anti-affinity relations in the network. AMNESiA uses the latest snapshot of usage data, collected through a generic monitoring solution, from the database to measure affinity between VNFs.
AMNESiA是一个用于nfv网络的亲和度测量平台,旨在将现有监测数据整合并解释为亲和度度量,帮助运营商识别网络中的亲和和反亲和关系。AMNESiA使用通过通用监控解决方案从数据库收集的最新使用数据快照来测量VNFs之间的关联。
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引用次数: 1
Ensuring two routes connectivity in mobile ad hoc networks with Random Waypoint mobility 在具有随机路点移动性的移动自组织网络中保证两条路由的连通性
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987348
Tareq Hayajna, Miochdel Kaldoching
To increase mobile ad hoc network reliability, virtually decrease the packets loss to zero, and to support multimedia communications multi-route is required. In order to ensure the availability of two routes, node density must be above a certain value. To the best our knowledge, this paper is the first paper that mathematically determines the required node density to ensure the availability of two routes between any randomly chosen source and destination pair in mobile ad hoc networks with random waypoint mobility model. To this end, a complete probabilistic model is provided. The obtained results reveal that the increase in the node density exponentially increases the probability of having two routes. This exponential increase is limited by a certain threshold, after this threshold the increase is negligible. An interesting conclusion from this paper is that the required node densities to ensure two routes connectivity are the same for both mobile nodes moving according to the generalized random waypoint mobility model and static nodes that are uniformly distributed in the network area. This work can be used by mobile ad hoc network designers to study the network reliability and connectivity.
为了提高移动自组网的可靠性,使丢包量几乎为零,并支持多媒体通信,需要多路由。为了保证两条路由的可用性,节点密度必须大于一定值。据我们所知,这篇论文是第一篇用数学方法确定任意随机选择的路点移动模型的移动自组织网络中任意随机选择的源和目的对之间的两条路由的可用性所需的节点密度的论文。为此,给出了一个完整的概率模型。得到的结果表明,节点密度的增加以指数方式增加具有两条路径的概率。这种指数增长受到一定阈值的限制,超过这个阈值,增长可以忽略不计。本文的一个有趣的结论是,对于根据广义随机路点移动模型移动的两个移动节点和均匀分布在网络区域的静态节点,保证两条路由连通性所需的节点密度是相同的。该工作可为移动自组网设计人员研究网络可靠性和连通性提供参考。
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引用次数: 5
SIMECA: SDN-based IoT Mobile Edge Cloud Architecture SIMECA:基于sdn的物联网移动边缘云架构
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987319
Binh Nguyen, Nakjung Choi, M. Thottan, J. Merwe
In future mobile networks, e.g., 5G, emerging IoT services are expected to support billions of IoT devices with unique characteristics and traffic patterns. In this paper we propose an SDN-based IoT Mobile Edge Cloud Architecture (SIMECA1) which can deploy diverse IoT services at the mobile edge by leveraging distributed, lightweight control and data planes optimized for IoT communications. We prototyped our architecture using a pre-commercial mobile networking software stack to demonstrate the feasibility and utility of our approach.
在未来的移动网络中,例如5G,新兴的物联网服务预计将支持数十亿具有独特特性和流量模式的物联网设备。在本文中,我们提出了一种基于sdn的物联网移动边缘云架构(SIMECA1),它可以通过利用针对物联网通信优化的分布式轻量级控制和数据平面,在移动边缘部署各种物联网服务。我们使用预商用移动网络软件堆栈对我们的架构进行了原型设计,以展示我们方法的可行性和实用性。
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引用次数: 22
MoViDiff: Enabling service differentiation for mobile video apps MoViDiff:为移动视频应用提供差异化服务
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987324
Satadal Sengupta, V. Yadav, Yash Saraf, Harshit Gupta, Niloy Ganguly, Sandip Chakraborty, Pradipta De
Among the mobile applications contributing to the surging Internet traffic, video applications are some of the biggest contributors. Most of these video applications use HTTP/HTTPS tunneling making it difficult to apply port based or packet data based identification of flows. This makes it challenging for network operators to enforce bandwidth regulation policies for app based service differentiation due to lack of flow identification mechanisms for mobile apps. We explore a packet data agnostic feature of video flows, namely packet-size, to identify the flows. We show that it is possible to train a classifier that can distinguish packets from streaming and interactive video apps with high accuracy. We design and implement a system, called MoViDiff, with this classifier at the core, that allows bandwidth regulation between video traffic of two different categories, streaming and interactive. We show that we can achieve an average accuracy of 96% in classifying the traffic, with the maximum accuracy reaching as high as 98%.
在对互联网流量激增做出贡献的移动应用中,视频应用是最大的贡献者之一。这些视频应用程序大多使用HTTP/HTTPS隧道,使得难以应用基于端口或基于数据包数据的流识别。由于缺乏移动应用的流量识别机制,这使得网络运营商对基于应用的服务差异化实施带宽监管政策具有挑战性。我们探索了视频流的数据包数据不可知特征,即数据包大小,以识别流。我们表明,训练一个分类器可以高精度地从流媒体和交互式视频应用程序中区分数据包是可能的。我们设计并实现了一个叫做MoViDiff的系统,以这个分类器为核心,它允许两种不同类别的视频流量(流媒体和交互式)之间的带宽调节。我们的研究表明,我们可以在流量分类中达到96%的平均准确率,最大准确率高达98%。
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引用次数: 4
On achieving high data availability in heterogeneous cloud storage systems 异构云存储系统中数据高可用性的实现
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987295
Mouhamad Dieye, M. Zhani, H. Elbiaze
In the era of Big data, cloud storage services have become the option of choice to store and share data thanks to their cost-effectiveness and seemingly limitless capacity. The increasing success of these services is driving cloud providers to further improve their storage management systems in order to offer more stringent guarantees on data availability and access time. However, despite recent efforts towards this goal, existing solutions have largely overlooked the heterogeneity of the workloads and the underlying storage components in terms of failure rates, capacity and I/O speed. To fill this gap, we present in this paper a heterogeneity-aware data management scheme (dubbed Heron) based on a genetic algorithm that takes into consideration disk heterogeneity to satisfy SLA requirements in terms of access time and availability and minimizes costs in terms of data migration, storage and energy consumption. Through realistic simulations, we show that Heron significantly improves data availability and access time and ensures minimal storage costs and data migration overhead compared to heterogeneity-oblivious solutions.
在大数据时代,云存储服务因其成本效益和看似无限的容量而成为存储和共享数据的首选。这些服务的日益成功促使云提供商进一步改进他们的存储管理系统,以便在数据可用性和访问时间上提供更严格的保证。然而,尽管最近努力实现这一目标,但现有的解决方案在很大程度上忽略了工作负载和底层存储组件在故障率、容量和I/O速度方面的异质性。为了填补这一空白,本文提出了一种基于遗传算法的异构感知数据管理方案(称为Heron),该方案考虑了磁盘异构性,以满足SLA在访问时间和可用性方面的要求,并将数据迁移、存储和能耗方面的成本降至最低。通过实际的模拟,我们表明,与异构无关的解决方案相比,Heron显著提高了数据可用性和访问时间,并确保了最小的存储成本和数据迁移开销。
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引用次数: 10
Latency-Sensitive Data Allocation for cloud storage 云存储的延迟敏感数据分配
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987258
Song Yang, P. Wieder, M. Aziz, R. Yahyapour, Xiaoming Fu
Customers often suffer from the variability of data access time in cloud storage service, caused by network congestion, load dynamics, etc. One solution to guarantee a reliable latency-sensitive service is to issue requests with multiple download/upload sessions, accessing the required data (replicas) stored in one or more servers. In order to minimize storage costs, how to optimally allocate data in a minimum number of servers without violating latency guarantees remains to be a crucial issue for the cloud provider to tackle. In this paper, we study the latency-sensitive data allocation problem for cloud storage. We model the data access time as a given distribution whose Cumulative Density Function (CDF) is known, and prove that this problem is NP-hard. To solve it, we propose both exact Integer Nonlinear Program (INLP) and Tabu Search-based heuristic. The proposed algorithms are evaluated in terms of the number of used servers, storage utilization and throughput utilization.
在云存储服务中,由于网络拥塞、负载动态等原因,客户经常遭受数据访问时间的可变性。保证可靠的延迟敏感服务的一种解决方案是使用多个下载/上传会话发出请求,访问存储在一个或多个服务器中的所需数据(副本)。为了最大限度地降低存储成本,如何在不违反延迟保证的情况下在最少数量的服务器中优化分配数据仍然是云提供商需要解决的一个关键问题。本文研究了云存储的延迟敏感数据分配问题。我们将数据访问时间建模为已知累积密度函数(CDF)的给定分布,并证明该问题是np困难的。为了解决这个问题,我们提出了精确整数非线性规划(INLP)和基于禁忌搜索的启发式算法。根据使用的服务器数量、存储利用率和吞吐量利用率对所提出的算法进行了评估。
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引用次数: 2
Overcoming the memory limits of network devices in SDN-enabled data centers 克服支持sdn的数据中心中网络设备的内存限制
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987402
Antonio Marsico, R. D. Corin, D. Siracusa
In extremely connected and dynamic environments, such as data centers, SDN network devices can be exploited to simplify the management of network provisioning. However, they leverage on TCAMs to implement the flow tables, i.e., on size-limited memories that can be quickly filled up when fine-grained traffic control is required, eventually preventing the installation of new forwarding rules. In this work, we demonstrate how this issue can be mitigated by means of a novel flow rule swapping mechanism. Specifically, we first show the negative effects of a full TCAM on a video streaming service provided by an SDN-enabled data center. Then, we show that our swapping mechanism helps in overcoming the inability to properly access a media content available in the data center, by temporarily moving the least matched flow rules from the TCAM to a larger memory outside the SDN device.
在高度连接和动态的环境中,例如数据中心,可以利用SDN网络设备简化网络供应的管理。然而,它们利用tcam来实现流表,也就是说,当需要细粒度的流量控制时,在大小有限的内存上可以迅速填满,最终防止安装新的转发规则。在这项工作中,我们演示了如何通过一种新的流规则交换机制来缓解这个问题。具体来说,我们首先展示了完整的TCAM对支持sdn的数据中心提供的视频流服务的负面影响。然后,我们展示了我们的交换机制有助于克服无法正确访问数据中心中可用的媒体内容的问题,通过临时将最不匹配的流规则从TCAM移到SDN设备外的更大内存中。
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引用次数: 5
State-machine driven collaborative mobile sensing serving multiple Internet-of-Things applications 服务于多种物联网应用的状态机驱动协同移动传感
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987465
Radhika Loomba, Lei Shi, B. Jennings
The myriad of sensor information that can be collected using smartphones, wearables and other IoT devices greatly benefits context-aware applications. These applications rely heavily on mobile devices, present in locations of interest, to offload raw or processed sensor data in order to accurately capture, recognize and classify the surrounding real-time context. However, continuous sensing and offloading of large volumes of mainly redundant sensor data significantly impacts energy-constrained mobile devices. This results in a trade-off between sensing accuracy and the energy consumed by these devices. We propose the use of application-specific state machines that encode the context of interest to determine when sensed data should be offloaded to the cloud. Our control algorithm, ‘Assisted-Aggregation’ applies frequent pattern mining to reduce the number of active devices by sharing sensed data between multiple applications. Our evaluation shows an improvement in terms of the residual energy of the mobile devices, the number of devices actively offloading and the volume of the offloaded data.
可以使用智能手机、可穿戴设备和其他物联网设备收集的无数传感器信息极大地有利于上下文感知应用程序。这些应用在很大程度上依赖于存在于感兴趣位置的移动设备,以卸载原始或处理过的传感器数据,以便准确地捕获、识别和分类周围的实时环境。然而,持续传感和卸载大量主要是冗余的传感器数据会严重影响能量受限的移动设备。这导致在传感精度和这些设备消耗的能量之间的权衡。我们建议使用特定于应用程序的状态机,对感兴趣的上下文进行编码,以确定何时将感知到的数据卸载到云中。我们的控制算法“辅助聚合”应用频繁的模式挖掘,通过在多个应用程序之间共享感知数据来减少活动设备的数量。我们的评估显示,在移动设备的剩余能量、主动卸载的设备数量和卸载的数据量方面都有所改善。
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引用次数: 1
Augmenting cloud architectures to support decentralized applications 增强云架构以支持分散的应用程序
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987325
Michael Coughlin, Kelly Kaoudis, Eric Keller
Despite the benefits of decentralized applications in terms of resilience and privacy, the overwhelming majority of applications with mainstream adoption are provided in a centralized manner. We argue that this is due to the direct benefits to the developer that centralization provides in terms of performance, monetization, and deployability. In this paper we introduce a new model, untrusted delegation, which joins the simplified deployment model of centralization with the benefits of decentralization. In this model, we decouple administrative ownership from administrative management, and leverage the existence of either a private cloud infrastructure, or a public cloud provider that acts as a neutral third party, that is augmented to support decentralization. Our initial prototype integrates with the Digital Ocean API and as a proof-of-concept, we can deploy Tor relay nodes with users only needing to sign up for a Digital Ocean account.
尽管去中心化应用程序在弹性和隐私方面有好处,但绝大多数被主流采用的应用程序都是以集中的方式提供的。我们认为,这是由于集中化在性能、货币化和可部署性方面给开发人员带来的直接好处。在本文中,我们引入了一个新的模型,即不可信委托,它将集中化的简化部署模型与去中心化的优点结合起来。在这个模型中,我们将管理所有权从管理管理中分离出来,并利用私有云基础设施或充当中立第三方的公共云提供商的存在来支持去中心化。我们最初的原型集成了数字海洋API,作为概念验证,我们可以部署Tor中继节点,用户只需要注册一个数字海洋账户。
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引用次数: 1
ARES: An autonomic and resilient framework for smart grids ARES:智能电网的自主和弹性框架
Pub Date : 2017-05-01 DOI: 10.23919/INM.2017.7987283
Yona Lopes, N. Fernandes, D. Muchaluat-Saade, K. Obraczka
In smart grids, the broad use of Distributed Energy Resources (DERs) in distribution networks introduces the need for protective relaying schemes similar to those used in high-voltage networks. The introduction of intermittent DERs, as solar panels, also requires more autonomic and dynamic SCADA networks. Hence, power systems experience an increased demand for resilience in the distribution communication network. However, resilience methods currently in use still cannot meet those protection requirements. This work proposes ARES, a framework for autonomic and resilient communication for smart grids. ARES provides resilient, robust, and flexible communication for smart grids with Software Defined Network (SDN). Our proposal also provides autonomic services for SCADA that can improve smart grid application performance and efficiency. ARES fault resilience module is implemented and tested using Mininet 2.2.1 and RYU controller and presents maximum recovery time of 610 microseconds, which is an important advance compared to other proposals. In addition, ARES is transparent to end devices, keeping compatibility with legacy measurement and actuation devices.
在智能电网中,分布式能源(DERs)在配电网中的广泛使用引入了类似于高压网络中使用的保护继电方案的需求。间歇性DERs的引入,如太阳能电池板,也需要更多的自主和动态SCADA网络。因此,电力系统对配电通信网络的弹性要求越来越高。然而,目前使用的弹性方法仍不能满足这些保护要求。这项工作提出了ARES,这是智能电网自主和弹性通信的框架。ARES通过软件定义网络(SDN)为智能电网提供弹性、健壮和灵活的通信。我们的方案还为SCADA提供了自主服务,可以提高智能电网的应用性能和效率。ARES故障恢复模块使用Mininet 2.2.1和RYU控制器实现并测试,最大恢复时间为610微秒,与其他方案相比有了重要的进步。此外,ARES对终端设备是透明的,与传统的测量和驱动设备保持兼容。
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引用次数: 10
期刊
2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM)
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