12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops最新文献_第4页

Contract Management for Cloud Services: Information modelling aspects 云服务合同管理:信息建模方面

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990501

Mario Alessandro Bochicchio, A. Longo, Caterina Mansueto

引用次数: 2

Automatic and independent Domain Name Service Configuration Management 自动独立的域名服务配置管理

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990644

Miguel Lopes, António D. Costa, Bruno Dias

引用次数: 1

An experimental testbed to predict the performance of XACML Policy Decision Points 一个预测XACML策略决策点性能的实验测试平台

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990711

B. Butler, B. Jennings, D. Botvich

{"title":"An experimental testbed to predict the performance of XACML Policy Decision Points","authors":"B. Butler, B. Jennings, D. Botvich","doi":"10.1109/INM.2011.5990711","DOIUrl":"https://doi.org/10.1109/INM.2011.5990711","url":null,"abstract":"The performance and scalability of access control systems is a growing concern as organisations deploy ever more complex communications and content management systems. This paper describes how an (offline) experimental testbed may be used to address performance concerns. To begin, timing measurements are collected from a server component incorporating the Policy Decision Point (PDP) under test, using representative policies and corresponding requests. Our experiments with two XACML PDP implementations show that measured request service times are typically clustered by request type; thus an algorithm for request cluster identification is presented. Cluster characterisations are used as inputs to a PDP performance model for a given policy/request mix and an analytic (queueing) model is used to estimate the equilibrium server load for different mixes of request clusters. The analytic performance prediction model is validated and extended by discrete event simulation of a PDP subject to additional load. These predictive models enable network administrators to explore the capacity of the PDP for different overall loadings (requests per unit time) and profiles (relative frequencies) of requests.","PeriodicalId":433520,"journal":{"name":"12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115163787","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: 11

What will happen if cloud management operations burst out? 如果云管理业务爆发，会发生什么?

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990679

S. Kikuchi, Y. Matsumoto

{"title":"What will happen if cloud management operations burst out?","authors":"S. Kikuchi, Y. Matsumoto","doi":"10.1109/INM.2011.5990679","DOIUrl":"https://doi.org/10.1109/INM.2011.5990679","url":null,"abstract":"Currently, cloud data centers make use of server virtualization techniques that consolidate computational resources to provide various services and improve resource utilization. However, the pattern of resource usage in some management operations for virtualized systems, such as live migration and snapshot recording, is different from that in the case of a traditional data center in which the virtualization technology is not used. Therefore, understanding the system behavior during the execution of a large number of management operations is very important for the reliable management of a virtualized cloud data center. With this understanding, we studied the characteristics of management operation performance by executing many operations simultaneously in an experimental virtual server system. The experimental results revealed some notable characteristics, including interference between operations with virtual machines (VMs) hosted on different physical servers and the asymmetric nature of live migration. On the basis of these findings, we state that degradation of operation performance can be mitigated by orchestrating operations under a proper control policy. We confirm the validity of these suggestions by carrying out a case study.","PeriodicalId":433520,"journal":{"name":"12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114077641","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: 8

Enhancing cooperation with multiple stage auctions in opportunistic routing for wireless mesh networks 加强与多阶段拍卖合作，为无线网状网络提供机会路由

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990584

Kun Zhang, Rui Wang, D. Qian, Zhongzhi Luan

{"title":"Enhancing cooperation with multiple stage auctions in opportunistic routing for wireless mesh networks","authors":"Kun Zhang, Rui Wang, D. Qian, Zhongzhi Luan","doi":"10.1109/INM.2011.5990584","DOIUrl":"https://doi.org/10.1109/INM.2011.5990584","url":null,"abstract":"Opportunistic routing significantly increases throughput in wireless mesh networks (WMNs) by utilizing the wireless broadcast medium. Most opportunistic routing protocols assume all nodes are cooperative. But in WMNs, one realistic problem is that nodes perform in their own interests and refuse to forward packets for other nodes. Game theory approach is an efficient way used in routing protocol to incentive nodes to forward other's packets. In this paper, we develop an auction incentive mechanism (AIM) for WMNs with opportunistic routing to encourage cooperation and balance energy consumption between nodes. In AIM, a fair pricing mechanism is used to incentive nodes and the pricing process is modeled as auction game reached Bayesian Nash equilibrium which maximizes the profit of each relay node. The energy status and throughput are considered in the bidding process; this not only ensures the high throughput but also balances the energy cost to reduce invalid nodes. Simulations are presented to complement our theoretical and evaluation results demonstrate its high performance in terms of stability, throughput and fairness.","PeriodicalId":433520,"journal":{"name":"12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123938053","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

Performance management of Java-based SIP application servers 基于java的SIP应用服务器的性能管理

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990551

M. Femminella, E. Maccherani, G. Reali

{"title":"Performance management of Java-based SIP application servers","authors":"M. Femminella, E. Maccherani, G. Reali","doi":"10.1109/INM.2011.5990551","DOIUrl":"https://doi.org/10.1109/INM.2011.5990551","url":null,"abstract":"Within the activities of the Java APIs for Integrated Networks (JAIN), the Java community offers a set of standard frameworks and open protocol APIs to create advanced telecommunications services. However, recent works have pointed out that Java-based implementations of the Session Initiation Protocol (SIP) stack, the fundamental signalling protocol in the convergent telephone-IP world, perform poorly if they are executed by large multi-core servers, typically used in data centres. The problem lies in the combination of the SIP protocol semantics with the Java language features, which does not allow fully exploiting the computing capabilities of multi-core architectures. To face this problem, we propose a solution to improve the throughput and signalling latency of applications implemented by using Java-based SIP application servers. It consists of the joint usage of virtualization and parallelization techniques. We have performed an extensive measurement campaign by using an open source application server compliant with the JSLEE (JAIN Service Logic Execution Environment) specifications. The rationale of this choice is that JSLEE application servers are currently regarded as very promising candidates for deploying telecom services. Results show that it is possible improving performance in terms of throughput and signalling latency by running more instances of the JSLEE server in parallel, each of them into separate virtual machines deployed on the same server. This improvement can increase throughput values of about 64% and, in the maximum throughput condition, the call set up latency can be nearly halved.","PeriodicalId":433520,"journal":{"name":"12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123968086","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: 12

A coordination framework for self-organisation in LTE networks LTE网络自组织的协调框架

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990691

L. Schmelz, M. Amirijoo, A. Eisenblätter, R. Litjens, M. Neuland, John Turk

引用次数: 67

Feedback-based learning for self-managed network elements 基于反馈的自管理网元学习

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990651

P. Magdalinos, A. Kousaridas, P. Spapis, Giorgos P. Katsikas, N. Alonistioti

引用次数: 5

On the merits of popularity prediction in multimedia content caching 浅谈多媒体内容缓存中流行度预测的优点

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990669

J. Famaey, T. Wauters, F. Turck

{"title":"On the merits of popularity prediction in multimedia content caching","authors":"J. Famaey, T. Wauters, F. Turck","doi":"10.1109/INM.2011.5990669","DOIUrl":"https://doi.org/10.1109/INM.2011.5990669","url":null,"abstract":"In recent years, telecom operators have been moving away from traditional, broadcast-driven, television towards IP-based, interactive and on-demand services. Consequently, multicast is no longer a viable solution to limit the amount of traffic in the IP-TV network. In order to counter an explosion in generated traffic, caches can be strategically placed throughout the content delivery infrastructure. As the size of caches is usually limited to only a small fraction of the total size of all content items, it is important to accurately predict future content popularity. Classical caching strategies only take into account the past when deciding what content to cache. Recently, a trend towards novel strategies that actually try to predict future content popularity has arisen. In this paper, we ascertain the viability of using popularity prediction in realistic multimedia content caching scenarios. The use of popularity prediction is compared to classical strategies using trace files from an actual deployed Video on Demand service. Additionally, the synergy between several parameters, such as cache size and prediction window, is investigated.","PeriodicalId":433520,"journal":{"name":"12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122260284","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: 27

Joint source channel coding optimization for heterogeneous access networks in multiuser scenario 多用户场景下异构接入网联合源信道编码优化

12th IFIP/IEEE International Symposium on Integrated Network Management (IM 2011) and Workshops Pub Date : 2011-05-23 DOI: 10.1109/INM.2011.5990514

L. Toni, L. Rossi, N. Agoulmine, J. Fontaine

引用次数: 0