P2P Networking and Applications
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Topology Dynamics in a P2PTV Network
Topology dynamics in a P2PTV network S. Tang, Y. Lu, J. Mart´ınHern´andez,F.A. Kuipers, and P. Van Mieghem Delft University of Technology, P.O. Box 5031, 2600 GA Delft, The Netherlands fS.Tang, Y.Lu, J.MartinHernandez, F.A.Kuipers, [email protected] Abstract. In recent years, a number of commercial peer-to-peer TV (P2PTV) applications have been launched. Yet, their mechanisms and characteristics are unknown. In this paper, we study SopCast, a typical proprietary P2PTV system. Treating SopCast as a black box, we perform a set of experiments that are suitable to analyze SopCast in depth. We attempt to disclose the SopCast protocol. The dynamic nature of the SopCast overlay, in terms of node degree, is also addressed in this paper. Our approaches in analyzing the SopCast mechanism and characterizing its topological properties reveal important design insights in SopCast, and may help to better understand similar P2PTV systems. Keywords: Topology dynamics, SopCast, P2PTV 1 Introduction The success of peer-to-peer (P2P) file-sharing systems has spurred the deploy- ment of P2P technologies in many other bandwidth-intensive large-scale ap- plications. Peer-to-Peer Television (P2PTV) has become a popular means of streaming audio and video content over the Internet. Example applications are CoolStreaming [8], TVAnts1, TVU2, SopCast3, etc. It is important to evaluate the traffic impact of such applications, while modeling their behavior. However, P2PTV streaming systems, such as SopCast, are developed for commercial pur- poses: thus, very little is known about their architectures. Some papers claim that SopCast is based on similar principles as those underlying CoolStreaming, e.g. -
Diapositiva 1
TRANSFERENCIA O DISTRIBUCIÓN DE ARCHIVOS ENTRE IGUALES (peer-to-peer) Características, Protocolos, Software, Luis Villalta Márquez Configuración Peer-to-peer Una red peer-to-peer, red de pares, red entre iguales, red entre pares o red punto a punto (P2P, por sus siglas en inglés) es una red de computadoras en la que todos o algunos aspectos funcionan sin clientes ni servidores fijos, sino una serie de nodos que se comportan como iguales entre sí. Es decir, actúan simultáneamente como clientes y servidores respecto a los demás nodos de la red. Las redes P2P permiten el intercambio directo de información, en cualquier formato, entre los ordenadores interconectados. Peer-to-peer Normalmente este tipo de redes se implementan como redes superpuestas construidas en la capa de aplicación de redes públicas como Internet. El hecho de que sirvan para compartir e intercambiar información de forma directa entre dos o más usuarios ha propiciado que parte de los usuarios lo utilicen para intercambiar archivos cuyo contenido está sujeto a las leyes de copyright, lo que ha generado una gran polémica entre defensores y detractores de estos sistemas. Las redes peer-to-peer aprovechan, administran y optimizan el uso del ancho de banda de los demás usuarios de la red por medio de la conectividad entre los mismos, y obtienen así más rendimiento en las conexiones y transferencias que con algunos métodos centralizados convencionales, donde una cantidad relativamente pequeña de servidores provee el total del ancho de banda y recursos compartidos para un servicio o aplicación. Peer-to-peer Dichas redes son útiles para diversos propósitos. -
Measurement and Analysis of P2P IPTV Program Resource
Hindawi Publishing Corporation e Scientific World Journal Volume 2014, Article ID 101702, 9 pages http://dx.doi.org/10.1155/2014/101702 Research Article Measurement and Analysis of P2P IPTV Program Resource Wenxian Wang,1,2 Xingshu Chen,1 Haizhou Wang,1 Qi Zhang,1 and Cheng Wang1 1 Network and Trusted Computing Institute, College of Computer Science, Sichuan University, Chengdu 610065, China 2 Mathematical College, Sichuan University, Chengdu 610064, China Correspondence should be addressed to Xingshu Chen; [email protected] Received 29 August 2013; Accepted 10 March 2014; Published 19 March 2014 Academic Editors: J. Shu and F. Yu Copyright © 2014 Wenxian Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. With the rapid development of P2P technology, P2P IPTV applications have received more and more attention. And program resource distribution is very important to P2P IPTV applications. In order to collect IPTV program resources, a distributed multi- protocol crawler is proposed. And the crawler has collected more than 13 million pieces of information of IPTV programs from 2009 to 2012. In addition, the distribution of IPTV programs is independent and incompact, resulting in chaos of program names, which obstructs searching and organizing programs. Thus, we focus on characteristic analysis of program resources, including the distributions of length of program names, the entropy of the character types, and hierarchy depth of programs. These analyses reveal the disorderly naming conventions of P2P IPTV programs. The analysis results can help to purify and extract useful information from chaotic names for better retrieval and accelerate automatic sorting of program and establishment of IPTV repository. -
A Survey on Peer-To-Peer (P2P)
ISSN (Online) 2278-1021 ISSN (Print) 2319-5940 IJARCCE International Journal of Advanced Research in Computer and Communication Engineering ICRITCSA M S Ramaiah Institute of Technology, Bangalore Vol. 5, Special Issue 2, October 2016 A Survey on Peer-to-Peer (P2P) Shruti Ghatnatti1, Patil Aishwarya Prasanna2, Shailaja2 Assistant Professor, BCA, P.C. Jabin Science College, Hubballi, India1 Student, BCA, P.C. Jabin Science College, Hubballi, India2 Abstract: Today‟s world the internet is on boom. Its trending on a very high basis.Its a food for many organizations and apllications in computer field. The communication is high over the internet. It‟s a good practice to have a secured communication over a peers. This paper attempts to survey on the peer-to-peer communication over a distributed networking. Its working and features are clearly explained. Keywords: P2P, Peers,Distributed Network, Network. I. INTRODUCTION Peer-to-peer (P2P) is an application that is used for search engines , virtual file systems ,and supercomputers”. computable process or to connect two or more computers In earlier software systems and networking discussions the or other devices that distributes the architecture to separate peer-to-peer was primary concept that is used for jobs or labors between peers. They are privileged equally, computable process visualized, stated in the first Request strong participants in the application program .And also for comments as reaching back to a P2P that is near to they are interconnected with several networks that are the principles -
HET- Nets 2010
Performance Modelling and Evaluation of Heterogeneous Networks PROCEEDINGS OF 6 TH WORKING INTERNATIONAL CONFERENCE HET- NETs 2010 EDITOR Tadeusz Czachórski Gliwice 2009 PUBLISHED BY Institute of Theoretical and Applied Informatics of the Polish Academy of Sciences Bałtycka 5, 44-100 Gliwice, POLAND www.iitis.gliwice.pl TECHNICAL PROGRAM COMMITTEE Tulin Atmaca, France Demetres Kouvatsos, UK Simonetta Balsamo, Italy Udo Krieger, Germany Andrzej Bartoszewicz, Poland Józef Lubacz, Poland Monique Becker, France Wojciech Molisz, Poland Wojciech Burakowski, Poland Andrzej R. Pach, Poland Leszek Borzemski, Poland António Pacheco, Portugal Jalel Ben-Otman, France Michele Pagano, Italy Vicente Casares-Giner, Spain Zdzisław Papir, Poland Ram Chakka, India Ferhan Pekergin, France Tadeusz Czachórski, Poland Nihal Pekergin, France Tien Do, Hungary Michał Pióro, Poland Peter Emstad, Norway Adrian Popescu, Sweden Markus Fiedler, Sweden David Remondo-Bueno, Spain Jean Michele Fourneau, France Werner Sandmann, Germany Erol Gelenbe, UK Maciej Stasiak, Poland Adam Grzech, Poland Zhili Sun, UK Andrzej Grzywak, Poland Nigel Thomas, UK Peter Harrison, UK Phuoc Tran-Gia, Germany Andrzej Jajszczyk, Poland Tereza Vazao, Portugal Wojciech Kabaciński, Poland Krzysztof Walkowiak, Poland Sylwester Kaczmarek, Poland Sabine Wittevrongel, Belgium Andrzej Kasprzak, Poland Józef Woźniak, Poland Jerzy Konorski, Poland ORGANIZING COMMITTEE Chair: Krzysztof Grochla [email protected], Phone: +48 32 231 73 19 ext 218; Fax: +48 32 231 70 26 Joanna Domańska Sławomir Nowak Cover designed by Krzysztof Grochla ISBN: 978-83-926054-4-7 CONTENTS Keynote Talks Erol Gelenbe: Steps towards self-aware networks ................................................ 9 Michał Pióro: On the notion of max-min fairness and its applications in network design ...................................................................................................... 11 Vincente Casares-Giner: Mobility models for mobility management .................. -
List of Search Engines
A blog network is a group of blogs that are connected to each other in a network. A blog network can either be a group of loosely connected blogs, or a group of blogs that are owned by the same company. The purpose of such a network is usually to promote the other blogs in the same network and therefore increase the advertising revenue generated from online advertising on the blogs.[1] List of search engines From Wikipedia, the free encyclopedia For knowing popular web search engines see, see Most popular Internet search engines. This is a list of search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites that have a search facility for online databases. Contents 1 By content/topic o 1.1 General o 1.2 P2P search engines o 1.3 Metasearch engines o 1.4 Geographically limited scope o 1.5 Semantic o 1.6 Accountancy o 1.7 Business o 1.8 Computers o 1.9 Enterprise o 1.10 Fashion o 1.11 Food/Recipes o 1.12 Genealogy o 1.13 Mobile/Handheld o 1.14 Job o 1.15 Legal o 1.16 Medical o 1.17 News o 1.18 People o 1.19 Real estate / property o 1.20 Television o 1.21 Video Games 2 By information type o 2.1 Forum o 2.2 Blog o 2.3 Multimedia o 2.4 Source code o 2.5 BitTorrent o 2.6 Email o 2.7 Maps o 2.8 Price o 2.9 Question and answer . -
Wired 13.01: the Bittorrent Effect
Wired 13.01: The BitTorrent Effect Search: Wired Magazine 6 Search The BitTorrent Effect Movie studios hate it. File-swappers love it. Bram Cohen's blazing-fast P2P software has turned the Internet into a universal TiVo. For free video-on-demand, just click here. By Clive ThompsonPage 1 of 5 next » "That was a bad move," Bram Cohen tells me. We're huddled over a table in Feature: his Bellevue, Washington, house playing a board game called Amazons. Cohen The Bit Torrent Effect picked it up two weeks ago and has already mastered it. The 29-year-old programmer consumes logic puzzles at the same rate most of us buy magazines. Plus: Behind his desk he keeps an enormous plastic bin filled with dozens of Rubik's A Better Way to Share Files Cube-style twisting gewgaws that he periodically scrambles and solves throughout the day. Cohen says he loves Amazons, a cross between chess and the Japanese game Go, because it is pure strategy. Players take turns dropping more and more tokens on a grid, trying to box in their opponent. As I ponder my next move, Cohen studies the board, his jet-black hair hanging in front of his face, and tells me his philosophy of the perfect game."The best strategy games are the ones where you put a piece down and it stays there for the whole game," he explains. "You say, OK, I'm staking out this area. But you can't always figure out if that's going to work for you or against you. -
P2PTV Multi-Channel Peers Analysis Marwan Ghanem, Olivier Fourmaux, Fabien Tarissan, Takumi Miyoshi
P2PTV Multi-channel Peers Analysis Marwan Ghanem, Olivier Fourmaux, Fabien Tarissan, Takumi Miyoshi To cite this version: Marwan Ghanem, Olivier Fourmaux, Fabien Tarissan, Takumi Miyoshi. P2PTV Multi-channel Peers Analysis. The 18th Asia-Pacific Network Operations and Management Symposium, Oct 2016, Kanazawa, Japan. hal-01366453 HAL Id: hal-01366453 https://hal.archives-ouvertes.fr/hal-01366453 Submitted on 14 Sep 2016 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. P2PTV Multi-channel Peers Analysis Marwan Ghanem, Olivier Fourmaux Fabien Tarissan Takumi Miyoshi Sorbonne Universités, UPMC Univ Paris 06 Université Paris-Saclay College of Systems Eng. and Sc. CNRS, LIP6 UMR 7606 ISP, ENS Cachan, CNRS Shibaura Institute of Technology 75005 Paris, France 94235 Cachan, France Saitama, 337-8570 Japan Email: [email protected] Abstract—After being the support of the data and voice audio/video streams to distribute in real-time to a large number convergence, the Internet has become one of the main video of receivers. The large number of streams and their intrinsic providers such as TV-stream. As an alternative to limited or real-time characteristics generate timing constraints which are expensive technologies, P2PTV has turned out to be a promising support for such applications. -
NET Institute*
NET Institute* www.NETinst.org Working Paper #07-42 October 2007 Online Peer-to-peer Communities: An Empirical Investigation of a Music Sharing Network as a Dynamic Two-sided Network Bin Gu, University of Texas, Yun Huang, University of Texas, Wenjing Duan, George Washington University Andrew Whinston, University of Texas * The Networks, Electronic Commerce, and Telecommunications (“NET”) Institute, http://www.NETinst.org, is a non-profit institution devoted to research on network industries, electronic commerce, telecommunications, the Internet, “virtual networks” comprised of computers that share the same technical standard or operating system, and on network issues in general. ONLINE PEER-TO-PEER COMMUNITIES: AN EMPIRICAL INVESTIGATION OF A MUSIC SHARING COMMUNITY AS A 1 DYNAMIC TWO-SIDED NETWORK Bin Gu2, Yun Huang2, Wenjing Duan3, Andrew Whinston2 Abstract Online peer-to-peer communities and online social networks have become increasingly popular. In particular, the recent boost of online peer-to-peer communities leads to exponential growth in sharing of user-contributed content which have brought profound changes to business and economic practices. Understanding the formation and sustainability of such peer-to-peer communities has important implications for businesses. We develop a dynamic two-sided network model that relates growth of communities to interactions between contribution and consumption of resources in online sharing activities. Using online music sharing data collected from a popular IRC music sharing service over five years, we empirically apply the model to identify dynamics in the music sharing community. We find that the music sharing community demonstrates distinctive characteristics of a two-sided network. Contribution in the community leads to more consumption and consumption leads to more contribution, creating positive network effects in the community. -
Smart Internet 2010 Report
SMART INTERNET TECHNOLOGY CRC SMART INTERNET 2010 REPORT SMART INTERNET 2010 Version: General distribution Date of Publication: August 2005 Authors: Trevor Barr, Alex Burns, Darren Sharp Faculty of Life and Social Sciences Swinburne University of Technology Established and supported under the Australian Government’s Cooperative Research Centres Programme Acknowledgment The editorial team who compiled and wrote sections of this report, and the individual section contributors, wish to collectively thank all of the interviewees who so generously gave of their time, and their thoughts, for this report. The interviewees responded in person, or by email, or in taped telephone conversations. Many were overseas and agreed to be interviewed at difficult times for them. Every endeavour has been made to fully acknowledge the views of those external experts who were consulted and quoted for the compilation of this report. Disclaimer This report contains references, comments and views regarding the topic of Smart Internet 2010. The recipient acknowledges that these references, comments and views reflect opinions and assumptions by the individual contributors, editorial team and Smart Internet Technology CRC Pty Ltd concerning the future, which may or may not prove correct. Smart Internet Technology CRC Pty Ltd and its respective directors and officers expressly disclaim any liability, representations or warranties expressed or implied contained in this report or any omissions from it. This disclaimer extends to any other information whether written or not, provided at any time by or on behalf of the Smart Internet Technology CRC Pty Ltd. © Smart Internet Technology CRC Pty Ltd 2005. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners. -
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UMG Recordings, Inc. et al v. Veoh Networks, Inc. et al Doc. 78 1 Re: Docket # 71 Steven A. Marenberg (101033) ([email protected]) 2 Elliot Brown (150802) ([email protected]) Brian Ledahl (186579) ([email protected]) 3 Benjamin Glatstein (242034) ([email protected]) IRELL & MANELLA LLP 4 1800 Avenue of the Stars, Suite 900 Los Angeles, California 90067-4276 5 Telephone: (310) 277-1010 Facsimile: (310) 203-7199 6 Attorneys for Plaintiffs 7 ADDITIONAL COUNSEL LISTED 8 ON SIGNATURE PAGE 9 UNITED STATES DISTRICT COURT 10 CENTRAL DISTRICT OF CALIFORNIA 11 WESTERN DIVISION 12 13 UMG RECORDINGS, INC., et al., ) Case No. CV-07-05744 AHM (AJWx) 14 ) ) JOINT STIPULATION UNDER 15 Plaintiffs, ) LOCAL RULE 37-2 REGARDING ) UMG RECORDINGS, INC.’S 16 ) MOTION TO COMPEL v. ) RESPONSES TO DISCOVERY 17 ) AGAINST VEOH NETWORKS, INC. ) 18 VEOH NETWORKS, INC., ) Filed Concurrently Herewith: ) [Declaration of Brian Ledahl and 19 ) Jennifer A. Golinveaux] Defendant. ) 20 ) ) Magistrate: Hon. Andrew J. Wistrich 21 ) ) Date: August 11, 2008 22 ) Time: 10:00 a.m. ) Courtroom: 690 23 ) ) Discovery Cutoff: January 12, 2009 24 ) Pretrial Conference: April 6, 2009 ) Trial Date: April 21, 2009 25 26 REDACTED PURSUANT TO INTERIM PROTECTIVE ORDER ENTERED 27 ON MAY 21, 2008-CONFIDENTIAL INFORMATION OMITTED 28 UNREDACTED COPY FILED UNDER SEAL 1899242 Dockets.Justia.com 1 TABLE OF CONTENTS 2 Page 3 I. INTRODUCTORY STATEMENTS ...............................................................2 4 A. UMG’s Introductory Statement .............................................................2 -
Singing for the School
Journal of Theoretical and Applied Electronic Commerce Research This paper is Available online at ISSN 0718–1876 Electronic Version www.jtaer.com VOL 1 / ISSUE 3 / DECEMBER 2006 / 42 - 57 © 2006 Universidad de Talca - Chile P2P's Significance for eBusiness: Towards a Research Agenda Roger Clarke1 1 Xamax Consultancy Pty Ltd, Canberra, Australia and Visiting Professor in eCommerce at Uni. of Hong Kong, in Cyberspace Law and Policy at Uni. of N.S.W. and in Computer Science at A.N.U. [email protected] Received 25 April 2006; received in revised form 15 August 2006; accepted 13 October 2006 Abstract Applications running over peer-to-peer (P2P) networks have exploded since the late 1990s. Research is needed into many aspects of P2P. These include architecture, application functionality, and the categories of digital works that are shared using P2P facilities. A range of significant strategic, consumer and policy issues also arise, such as challenges to the operation of copyright, defamation and other censorship laws. Organisations affected by P2P are devising and deploying countermeasures, such as technological protections for digital works and attempts to identify devices and users. These too require study. This paper presents the landscape of research opportunities, indicating methods that might be appropriately applied to the various kinds of questions. Key words: P2P overlay networks, P2P applications, file-sharing, strategic impacts, policy impacts 42 P2P's Significance for eBusiness: Towards a Research Agenda Roger Clarke Journal of Theoretical and Applied Electronic Commerce Research This paper is Available online at ISSN 0718–1876 Electronic Version www.jtaer.com VOL 1 / ISSUE 3 / DECEMBER 2006 / 42 - 57 © 2006 Universidad de Talca - Chile 1 Introduction Applications of Peer-to-peer (P2P) technology have exploded since the late 1990s.