10th International Conference on Network and Service Management (CNSM) and Workshop最新文献_第7页

Impacts of energy efficiency features on lifetime of network equipment 能效特征对网络设备寿命的影响

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014182

G. C. Januario, A. C. Riekstin, T. Carvalho

{"title":"Impacts of energy efficiency features on lifetime of network equipment","authors":"G. C. Januario, A. C. Riekstin, T. Carvalho","doi":"10.1109/CNSM.2014.7014182","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014182","url":null,"abstract":"Energy efficiency features are being integrated in network protocols and management systems in order to make the infrastructure more sustainable and, at the same time, address the growing users' demand. Many of such features affect the network in different ways, thus yielding trade-offs. They can affect the reliability and availability of the network when they put devices or links into sleep mode, and they can affect the lifetime of the devices as a result of the new pattern of operation. This work discusses what needs to be evaluated when considering equipment lifetime, with respect to processor of network devices. We show that the new network management profile does affect the equipment lifetime negatively, in contradiction to what recent works seem to predict. We also present our ongoing research on how to calculate the trade-offs considering performance, availability, energy efficiency, and lifetime. These aspects must be taken into account in cost functions used to define the best network configuration. The key of our analysis and method relies on the understanding of thermal cycling and the power of using it in a predictive fashion.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128275450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

GIROFLOW: Openflow virtualized infrastructure management tool GIROFLOW: Openflow虚拟化基础设施管理工具

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014208

T. N. Araujo, R. Salles

引用次数: 2

Generalized Lagrange based Resource Negotiation Mechanism in MANETs 基于广义拉格朗日的manet资源协商机制

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014162

Nan Mu, Lanlan Rui, Shao-Yong Guo, Xue-song Qiu

引用次数: 2

Towards real-time management of virtualized telecommunication networks 迈向虚拟化电信网络的实时管理

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014200

J. Keeney, S. Meer, Liam Fallon

{"title":"Towards real-time management of virtualized telecommunication networks","authors":"J. Keeney, S. Meer, Liam Fallon","doi":"10.1109/CNSM.2014.7014200","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014200","url":null,"abstract":"The idea of virtualizing network functions is driven by recent advances in network-focused hardware. In 2012, several large telecommunication operators issued a call to action for Network Function Virtualization (NFV)1. The underlying idea is that every network service currently delivered on proprietary, application specific hardware should be deliverable using virtual machines. This means that routers, firewalls, load balancers and other network devices run virtualized on commodity hardware. Consequently, ETSI is extending this idea to mobile networks. Here, parts of the core and the radio access network will be virtualized. The immediate advantage is that any Virtual Network Function (VNF) can now be deployed, re-deployed and undeployed in the same way as any traditional virtual machine. Thus, NFV will result in more dynamic and agile networks than seen heretofore. However, this will raise a number of serious issues in managing these future networks. In this paper, we examine issues and challenges in orchestrating these virtualized functions and their interconnections to provide a more agile mobile telecommunication network.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132479116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

FlexForward: Enabling an SDN manageable forwarding engine in Open vSwitch FlexForward:在Open vSwitch中启用SDN可管理的转发引擎

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014178

Rafael D. Vencioneck, G. Vassoler, M. Martinello, M. Ribeiro, C. Marcondes

引用次数: 12

Filling the gap between Software Defined Networking and Wireless Mesh Networks 填补了软件定义网络和无线网状网络之间的空白

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014211

V. Nascimento, M. Moraes, Rosivaldo Gomes, B. Pinheiro, A. Abelém, Vinicius C. M. Borges, K. Cardoso, E. Cerqueira

{"title":"Filling the gap between Software Defined Networking and Wireless Mesh Networks","authors":"V. Nascimento, M. Moraes, Rosivaldo Gomes, B. Pinheiro, A. Abelém, Vinicius C. M. Borges, K. Cardoso, E. Cerqueira","doi":"10.1109/CNSM.2014.7014211","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014211","url":null,"abstract":"Software Defined Networking (SDN) has emerged as a new paradigm that highly increase the network management flexibility through simple but powerful abstractions. The key idea is decoupling the control plane, which makes the forward decisions, from the data plane, which effectively makes the forward. However, the OpenFlow, the main SDN enabler, is designed mainly by wired networks characteristics. As consequence, Wireless Mesh Networks (WMNs) is not suitable for operating as control plane and many wireless networks features are neglected in the OpenFlow, e.g.: power control and network ID. In addition, there are few effort research to extend SDN to wireless networks and these existing works focus on very specific issues of this integration. In this paper, we propose an architecture to extent the OpenFlow functionalities in order to proper deal with wireless networks, including an approach for transporting the control plane over wireless multihop networks. The extensions include new rules, actions, and commands, which bring the network management flexibility to the wireless context. We validated our proposal by implementing and testing some extensions in a small real world testbed. As a proof of concept, we illustrate the OpenFlow capability of isolation between research and production traffics in a wireless backhaul.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134262895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Design and evaluation of a scalable hierarchical application component placement algorithm for cloud resource allocation 用于云资源分配的可伸缩分层应用组件放置算法的设计与评估

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014155

Maryam Barshan, Hendrik Moens, F. Turck

引用次数: 13

Shadow patching: Minimizing maintenance windows in a virtualized enterprise environment 影子补丁:在虚拟化的企业环境中最小化维护窗口

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014154

Duy Le, Jidong Xiao, Hai Huang, Haining Wang

{"title":"Shadow patching: Minimizing maintenance windows in a virtualized enterprise environment","authors":"Duy Le, Jidong Xiao, Hai Huang, Haining Wang","doi":"10.1109/CNSM.2014.7014154","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014154","url":null,"abstract":"Software is growing bigger and more complex, which results in bugs and defects being no longer dealt as exceptions, but rather as normal artifacts in a software's lifecycle. In fact, many patches are released by vendors on a preset schedule. This implies that managing patches in a correct and timely manner has become an important factor in smoothly running an IT environment. However, when a patch is applied, the affected software is often required to stop temporarily, which can cause a disruption of service. The down time is commonly called a maintenance window. Although sophisticated live patching techniques have been previously proposed, their applicability in practice is very limited. In this paper, we propose a novel patch management technique based on commonly available virtualization capabilities. It allows system administrators to perform a majority of the patch work outside of the maintenance window, such as downloading patches, installing them, and performing post-installation testing and fixes. By capturing the disk activities and replaying them during the actual maintenance window, we can transform a complex software patching operation to a series of more deterministic file I/O operations, and thus, reducing maintenance window from hours to minutes.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116228440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Measuring and modeling the power consumption of OpenFlow switches 测量和建模OpenFlow交换机的功耗

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014156

F. Kaup, Sergej Melnikowitsch, D. Hausheer

{"title":"Measuring and modeling the power consumption of OpenFlow switches","authors":"F. Kaup, Sergej Melnikowitsch, D. Hausheer","doi":"10.1109/CNSM.2014.7014156","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014156","url":null,"abstract":"The power consumption of network devices contributes to a considerable fraction of the energy expenses of data center and service providers. Recently, Software Defined Networking (SDN) has emerged as a novel networking paradigm that allows optimizing the traffic in a variety of ways, ranging from the Ethernet layer to the network layer and above. This makes SDN a versatile approach for a large number of applications. However, little is known about the power consumption of SDN-enabled networking devices, especially OpenFlow switches. This paper presents measurements and derived power consumption models for two SDN devices, namely an OpenFlow-based hardware switch (NEC PF 5240) and the Open vSwitch running on server grade hardware. The effect of configuration, management, and the managed traffic on the resulting power consumption is evaluated. Based on these measurements, a power model is derived, allowing for an estimation of the power consumption based on the configuration and network traffic only. Being available on the OpenFlow controller, the information about the power model enables an estimation of the power consumption of the full network without additional measurement equipment. The resulting model shows an error of less than 8% for the software switch and less than 1% for the hardware switch.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"88 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126304608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 43

On the analysis of QoE-based performance degradation in YouTube traffic 基于qos的YouTube流量性能下降分析

10th International Conference on Network and Service Management (CNSM) and Workshop Pub Date : 2014-11-01 DOI: 10.1109/CNSM.2014.7014135

P. Casas, A. D'Alconzo, P. Fiadino, A. Bär, A. Finamore

{"title":"On the analysis of QoE-based performance degradation in YouTube traffic","authors":"P. Casas, A. D'Alconzo, P. Fiadino, A. Bär, A. Finamore","doi":"10.1109/CNSM.2014.7014135","DOIUrl":"https://doi.org/10.1109/CNSM.2014.7014135","url":null,"abstract":"YouTube is the most popular service in today's Internet. Google relies on its massive Content Delivery Network (CDN) to push YouTube videos as close as possible to the end-users to improve their Quality of Experience (QoE), using dynamic server selection strategies. Such traffic delivery policies can have a relevant impact on the traffic routed through the Internet Service Providers (ISPs) providing the access, but most importantly, they can have negative effects on the end-user QoE. In this paper we shed light on the problem of diagnosing QoE-based performance degradation events in YouTube's traffic. Through the analysis of one month of YouTube flow traces collected at the network of a large European ISP, we particularly identify and drill down a Google's CDN server selection policy negatively impacting the watching experience of YouTube users during several days at peak-load times. The analysis combines both the user-side perspective and the CDN perspective of the end-to-end YouTube delivery service to diagnose the problem. The main contributions of the paper are threefold: firstly, we provide a large-scale characterization of the YouTube service in terms of traffic characteristics and provisioning behavior of the Google CDN servers. Secondly, we introduce simple yet effective QoE-based KPIs to monitor YouTube videos from the end-user perspective. Finally and most important, we analyze and provide evidence of the occurrence of QoE-based YouTube anomalies induced by CDN server selection policies, which are somehow normally hidden from the common knowledge of the end-user. This is a main issue for ISPs, who see their reputation degrade when such events occur, even if Google is the culprit.","PeriodicalId":268334,"journal":{"name":"10th International Conference on Network and Service Management (CNSM) and Workshop","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127590868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13