Proceedings of the 2013 25th International Teletraffic Congress (ITC)最新文献_第2页

Engineering elastic traffic in TCP-based networks: Processor sharing and effective service time 基于tcp网络的工程弹性流量:处理器共享和有效服务时间

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662958

G. Hoekstra, R. Mei, N. Diaz-Feraren

{"title":"Engineering elastic traffic in TCP-based networks: Processor sharing and effective service time","authors":"G. Hoekstra, R. Mei, N. Diaz-Feraren","doi":"10.1109/ITC.2013.6662958","DOIUrl":"https://doi.org/10.1109/ITC.2013.6662958","url":null,"abstract":"Today, a wide range of networks exist that provide users with data services using TCP. For performance engineering of such networks there is a need for simple but accurate models to predict the performance under anticipated load conditions. This is a challenging task, because the combined packet-level dynamics of the network-protocol stack are highly complicated. First, we explain how the packet-level dynamics and protocol overhead of the multiple communication layers can be successfully captured by a single parameter, called the effective service time (EST), and give a full parameterization that explicitly expresses the EST in terms of the network parameters. Second, we show how the transfer-time performance can be modeled by a classical M/G/1 Processor Sharing (PS) model, but where the service time is replaced by the EST. Finally, extensive test-lab experimentation shows that the model leads to highly accurate predictions over a wide range of parameter combinations, including light- and heavy-tailed file-size distributions and light-and heavy-load scenarios. The simplicity and accuracy of the model make the results of high practical relevance and useful for performance engineering purposes.","PeriodicalId":252757,"journal":{"name":"Proceedings of the 2013 25th International Teletraffic Congress (ITC)","volume":"313 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131112111","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: 5

Analysis for unfairness of TCP outcast problem in data center networks 数据中心网络中TCP丢弃问题的不公平性分析

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662965

Yang Qin, Yao Shi, Qiwei Sun, Liqun Zhao

{"title":"Analysis for unfairness of TCP outcast problem in data center networks","authors":"Yang Qin, Yao Shi, Qiwei Sun, Liqun Zhao","doi":"10.1109/ITC.2013.6662965","DOIUrl":"https://doi.org/10.1109/ITC.2013.6662965","url":null,"abstract":"There is a form of unfairness phenomenon found in data center networks,which was identified by P. Prakash. This phenomenon shows that the throughput of a flow with smaller RTT is less than the throughput of a flow with large RTT. This is completely contrary to the classic TCP protocol. P. Prakash gives an explanation based on port blackout theory. However, after careful analysis, we have found another reason for this unusual phenomenon, which may be more important. This is because of an unfair distribution of the flows with different RTT on the physical link and the differences in congestion window size when finishing the current block transmission. In this paper, we develop an analytical model for the goodput in the outcast behavior. Then, we design a window notification based protocol to address this phenomenon. By using the mean value of the congestion window measurement, we unified the congestion window size for flows with different RTT, which improves the goodput of the flows with small RTT. By designing several experiments using the ns-2 simulator, we demonstrate that our explanation of outcast phenomenon is correct. Furthermore, we verify the effectiveness of the proposed algorithms.","PeriodicalId":252757,"journal":{"name":"Proceedings of the 2013 25th International Teletraffic Congress (ITC)","volume":"22 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114625098","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: 4

OSone: A distributed operating system for energy efficient Sensor Network OSone:用于节能传感器网络的分布式操作系统

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662959

B. Pásztor, P. Hui

引用次数: 4

Experimental analysis of caching efficiency for YouTube traffic in an ISP network ISP网络中YouTube流量缓存效率的实验分析

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662934

F. Guillemin, Bruno Kauffmann, S. Moteau, A. Simonian

引用次数: 37

Beyond best effort: Choosing connectivity portfolio for cloud brokering platform by risk/profit tradeoff 超越最佳努力:通过风险/利润权衡为云代理平台选择连接组合

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662946

A. Gaivoronski, Darijus Strasunskas, P. Nesse, S. Svaet

引用次数: 1

Efficient traffic splitting in parallel TCP-based wireless networks: Modelling and experimental evaluation 基于并行tcp的无线网络的高效流量分割:建模和实验评估

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662945

G. Hoekstra, R. Mei, J. Bosman

{"title":"Efficient traffic splitting in parallel TCP-based wireless networks: Modelling and experimental evaluation","authors":"G. Hoekstra, R. Mei, J. Bosman","doi":"10.1109/ITC.2013.6662945","DOIUrl":"https://doi.org/10.1109/ITC.2013.6662945","url":null,"abstract":"The concurrent use of networks provides a powerful means to boost performance in areas covered by multiple networks where only limited bandwidth is available. However, despite its enormous potential for performance improvement only little is known about how to effectively exploit the potential for performance improvement in practical deployments. This raises the need for traffic-splitting-and-reassembly algorithms that are effective, yet simple and easy-to-deploy. Motivated by this, we first propose a simple analytic flow-level model, called the Concurrent Access Network (CAN) model, that optimally splits traffic in the idealized situation where there is full state information at infinitely fine-grained time granularity, leading to zero synchronization delay during the reassembly phase. Next, we present a new splitting algorithm for TCP-based networks that uses a simple score function to make on-the-fly decisions on the routing of individual TCP segments, based on the measured per-connection RTT, transmission-buffer content and throughput. Then, we use the CAN-model as a benchmark to evaluate the effectiveness and practical usefulness of the score-function based algorithm on real TCP networks in a test-lab environment. Extensive lab experimentation demonstrates that this score-function based splitting of TCP traffic is extremely efficient, leads to close-to-optimal response-time performance and is easily deployable.","PeriodicalId":252757,"journal":{"name":"Proceedings of the 2013 25th International Teletraffic Congress (ITC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123784358","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: 5

Performance approximations for non-real-time traffic in an integrated service system 综合业务系统中非实时业务的性能近似

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662966

Yue-Cai Huang, K. Ko, M. Zukerman

引用次数: 0

Modeling the interaction between TCP and rate adaptation at links 建立TCP与链路速率自适应之间的交互模型

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662951

Faheem Khuhawar, M. Mellia, M. Meo

引用次数: 1

A performance analysis study of multipath routing in a hybrid network with mobile users 移动用户混合网络中多路径路由的性能分析研究

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662938

A. Bejan, R. Gibbens, Yeon-sup Lim, D. Towsley

{"title":"A performance analysis study of multipath routing in a hybrid network with mobile users","authors":"A. Bejan, R. Gibbens, Yeon-sup Lim, D. Towsley","doi":"10.1109/ITC.2013.6662938","DOIUrl":"https://doi.org/10.1109/ITC.2013.6662938","url":null,"abstract":"Mobile communication platforms of individual agents and ground vehicles, ships and aircrafts of both civil and military services often operate in highly dynamic conditions with constantly changing infrastructure and access to communication resources. Efficient techniques for rapid and yet stable communication of such fleets with their control centres and between cooperating vehicles within the fleet is a challenging but important area of study with the potential to facilitate the analysis and design of efficient and robust communication systems. Multipath extensions of data transmission protocols aim to take advantage of path diversity to achieve efficient and robust bandwidth allocation while maintaining stability. Such multipath resource pooling extensions of routing and congestion control intrinsically implement decentralisation with implicit resource sharing. In this paper, we build on the recent theoretical work on fluid model approximations of multipath TCP and study their application to the scenarios in which a convoy with two communication nodes (representing the convoy's head and tail) establishes channels with a set of radio/WiFi towers and a satellite relaying information to a remote destination; these channels have time-varying capacities which depend on the position and dynamics of the convoy. The paper studies the performance of a multipath TCP controller and demonstrates how path diversity can be implicitly utilised to spread flows across available paths. Furthermore, we study the patterns of sub-flows governed by dynamic control according to the motion of the convoy and investigate the trade-offs between resource utilisation and the speed of response by the sub-flows.","PeriodicalId":252757,"journal":{"name":"Proceedings of the 2013 25th International Teletraffic Congress (ITC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123622585","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: 3

Modeling ISP tier design ISP层设计建模

Proceedings of the 2013 25th International Teletraffic Congress (ITC) Pub Date : 2013-11-14 DOI: 10.1109/ITC.2013.6662957

Wei Dai, S. Jordan

引用次数: 7