37th Annual IEEE Conference on Local Computer Networks最新文献_第4页

Distributed client-server assignment 分布式客户机-服务器分配

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423633

Thuan Duong-Ba, Thinh P. Q. Nguyen

引用次数: 3

Flow-Path: An AllPath flow-based protocol Flow-Path:基于AllPath流的协议

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423619

Elisa Rojas, G. Ibáñez, Diego Rivera, J. A. Carral

引用次数: 1

Network capabilities of cloud services for a real time scientific application 网络能力的云服务，用于实时科学应用

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423665

Dilip Kumar Krishnappa, Eric J. Lyons, David E. Irwin, M. Zink

{"title":"Network capabilities of cloud services for a real time scientific application","authors":"Dilip Kumar Krishnappa, Eric J. Lyons, David E. Irwin, M. Zink","doi":"10.1109/LCN.2012.6423665","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423665","url":null,"abstract":"Dedicating high-end servers for executing scientific applications that run intermittently, such as severe weather detection or generalized weather forecasting, wastes resources. While the Infrastructure-as-a-Service (IaaS) model used by today's cloud platforms is well-suited for the bursty computational demands of these applications, it is unclear if the network capabilities of today's cloud platforms are sufficient. In this paper, we analyze the networking capabilities of multiple commercial (Amazon's EC2 and Rackspace) and research (GENICloud and ExoGENI cloud) platforms in the context of a Nowcasting application, a forecasting algorithm for highly accurate, near-term, e.g., 5-20 minutes, weather predictions. The application has both computational and network requirements. While it executes rarely, whenever severe weather approaches, it benefits from an IaaS model; However, since its results are time-critical, enough bandwidth must be available to transmit radar data to cloud platforms before it becomes stale. We conduct network capacity measurements between radar sites and cloud platforms throughout the country. Our results indicate that ExoGENI cloud performs the best for both serial and parallel data transfer with an average throughput of 110.22 Mbps and 17.2 Mbps, respectively. We also found that the cloud services perform better in the distributed data transfer case, where a subset of nodes transmit data in parallel to a cloud instance. Ultimately, we conclude that commercial and research clouds are capable of providing sufficient bandwidth for our real-time Nowcasting application.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129953246","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: 14

Cache isolation and thin provisioning of hypervisor caches 缓存隔离和精简配置管理程序缓存

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423618

V. Suryanarayana, K. Balasubramanya, R. Pendse

{"title":"Cache isolation and thin provisioning of hypervisor caches","authors":"V. Suryanarayana, K. Balasubramanya, R. Pendse","doi":"10.1109/LCN.2012.6423618","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423618","url":null,"abstract":"Server virtualization has enabled resource consolidation and has minimized the need for additional and expensive hardware. Server virtualization has been widely deployed in a lot of organizations, because of the attractive benefits it offers like minimal hardware, cost effective resource consolidation, easier management and maintenance of hardware resources and so on. Many cloud service providers have offloaded processing capabilities to virtual servers in their data centers instead of using multiple physical servers which are very expensive these days. When such a virtualized server setup is connected to disk arrays, latency of data access becomes prominent. In order to minimize the response time of application requests on the virtual servers and make efficient utilization of cache, a dynamic caching mechanism is proposed by the authors on the hypervisor. The caching mechanism proposed in the research is different, in the sense that, it is an isolated, unshared and dynamic cache, where caching is done on the hypervisor instead of the virtual machines. The dynamic cache allocation algorithm enables thin provisioning of the hypervisor cache and leads to efficient cache utilization. Experimental results obtained using the thin provisioning algorithm look promising in terms of reducing the response time and efficiently utilizing the available cache.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131173814","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

A wireless mesh sensor network for hazard and safety monitoring at the Port of Brisbane 布里斯班港用于危险和安全监测的无线网状传感器网络

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423601

Amin Ahmadi, A. Bigdeli, Mahsa Baktash, B. Lovell

{"title":"A wireless mesh sensor network for hazard and safety monitoring at the Port of Brisbane","authors":"Amin Ahmadi, A. Bigdeli, Mahsa Baktash, B. Lovell","doi":"10.1109/LCN.2012.6423601","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423601","url":null,"abstract":"A wireless sensor network (WSN) was designed and implemented to provide reliable long-term hazard monitoring at the Port of Brisbane, Australia. The proposed system consists of four sensor nodes, a wireless gateway and a central monitoring computer. The sensor nodes are capable of measuring a range of hazardous events along with the time and location of events in maritime environment. Each sensor node is also equipped with a Global Positioning System (GPS) module and a ZigBee module. The monitoring server is a personal computer application server with Internet connectivity. Sensor nodes utilize smart algorithm to save energy and AES-128 encryption to encode data prior to sending the data packet through the wireless ZigBee protocol to gateway. The gateway collects and decrypts the data packets and forwards them to the monitoring computer through wireless connection. A database server running on the monitoring computer stores the captured data for visualization and further analysis. The monitoring server is interfaced to Google Maps to overlay real-time data from the sensor nodes onto map in the correct corresponding locations. The WSN system was successfully deployed and tested at the Port of Brisbane, Queensland, Australia.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925555","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

Applicability of crypto-based security approaches in tactical wireless multi-hop networks 基于密码的安全方法在战术无线多跳网络中的适用性

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423584

N. Aschenbruck, E. Gerhards-Padilla, Martin Lambertz

引用次数: 1

Time series matrix factorization prediction of internet traffic matrices 互联网流量矩阵的时间序列矩阵分解预测

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423629

Yunlong Song, Min Liu, Shaojie Tang, Xufei Mao

引用次数: 10

Characterizing cyberlocker traffic flows 表征网络密室的流量

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423655

Aniket Mahanti, Niklas Carlsson, M. Arlitt, C. Williamson

{"title":"Characterizing cyberlocker traffic flows","authors":"Aniket Mahanti, Niklas Carlsson, M. Arlitt, C. Williamson","doi":"10.1109/LCN.2012.6423655","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423655","url":null,"abstract":"Cyberlockers have recently become a very popular means of distributing content. Today, cyberlocker traffic accounts for a non-negligible fraction of the total Internet traffic volume, and is forecasted to grow significantly in the future. The underlying protocol used in cyberlockers is HTTP, and increased usage of these services could drastically alter the characteristics of Web traffic. In light of the evolving nature of Web traffic, updated traffic models are required to capture this change. Despite their popularity, there has been limited work on understanding the characteristics of traffic flows originating from cyberlockers. Using a year-long trace collected from a large campus network, we present a comprehensive characterization study of cyberlocker traffic at the transport layer. We use a combination of flow-level and host-level characteristics to provide insights into the behavior of cyberlockers and their impact on networks. We also develop statistical models that capture the salient features of cyberlocker traffic. Studying the transport-layer interaction is important for analyzing reliability, congestion, flow control, and impact on other layers as well as Internet hosts. Our results can be used in developing improved traffic simulation models that can aid in capacity planning and network traffic management.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134297568","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: 10

Active breadcrumbs: Aggressive distribution method of in-network guidance information for content-oriented networks 主动面包屑:面向内容网络的网络内引导信息的主动分发方法

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423602

Masayuki Kakida, Y. Tanigawa, H. Tode

{"title":"Active breadcrumbs: Aggressive distribution method of in-network guidance information for content-oriented networks","authors":"Masayuki Kakida, Y. Tanigawa, H. Tode","doi":"10.1109/LCN.2012.6423602","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423602","url":null,"abstract":"Lately, access loads on servers and network traffic are increasing due to larger content-size and higher request-frequency in content distribution networks. Breadcrumbs (an architecture with guidance information for locating a content cache) is designed to reduce server-loads and to form content oriented network autonomously in cooperation with cached contents. We also proposed Breadcrumbs+ which solves BC's problem that queries visit the same routers repeatedly with forming a loop of routing. However, Breadcrumbs itself still has a technical issue that some queries potentially traverse longer hops compared to conventional approach. In addition, Breadcrumbs takes only a passive approach; a query is routed by a trail of BCs only when the query happens to encounter a corresponding BC. This indicates that Breadcrumbs has a space to enhance its capability. We expect that active and adaptive control of BC improves user experience. In this paper, we propose Active Breadcrumbs which provides higher cache utilization through active spreading guidance information around cache-nodes. Finally, we show the effectiveness of Active Breadcrumbs in terms of traversing content/query hops and server utilization through the extensive computer simulation.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133555642","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

An optimised dynamic resource allocation algorithm for Cloud's backbone network 一种优化的云骨干网络动态资源分配算法

37th Annual IEEE Conference on Local Computer Networks Pub Date : 2012-10-22 DOI: 10.1109/LCN.2012.6423621

Ilhem Fajjari, N. Aitsaadi, G. Pujolle, H. Zimmermann

{"title":"An optimised dynamic resource allocation algorithm for Cloud's backbone network","authors":"Ilhem Fajjari, N. Aitsaadi, G. Pujolle, H. Zimmermann","doi":"10.1109/LCN.2012.6423621","DOIUrl":"https://doi.org/10.1109/LCN.2012.6423621","url":null,"abstract":"Sky computing is a promising concept enabling a flexible deployment of geographical distributed applications. Whereas, it is faced with a fundamental challenge which is: “efficient resource utilisation” within Cloud's infrastructure. Hence, a high flexible and intelligent resource allocation scheme is necessary to accommodate unpredictable and variable users demands. This paper tackles the fundamental challenge of efficient resource allocation within Cloud's backbone network. The ultimate goal is to satisfy the Cloud's user requirements while maximising Cloud provider's revenue. The problem consists in embedding virtual networks within substrate infrastructure. A new dynamic adaptive virtual network resource allocation strategy named Backtracking-VNE is investigated to deal with the complexity of resource provisioning within Cloud network. The proposal coordinates virtual nodes and virtual links mapping stages to optimise resources usage. Moreover, thanks to forecasting module, Backtracking-VNE guarantees an efficient resources share between embedded virtual links with respect to their occupancy. We demonstrate through extensive simulations that contrarily to static bandwidth allocation approaches, Backtracking-VNE enhances substrate bandwidth usage whilst minimising virtual links congestion. Acceptance rate of virtual networks and Cloud providers income are also improved compared with related strategies.","PeriodicalId":209071,"journal":{"name":"37th Annual IEEE Conference on Local Computer Networks","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132258475","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: 6