Peer- to- Peer File Sharing
|
|
- Conrad Walker
- 7 years ago
- Views:
Transcription
1 Server DistribuPng a Large File F bits - to- File Sharing d 4 Jennifer Rexford OS 461: omputer Networks Lectures: MW 10-10:50am in rchitecture N101 upload rate u s d 1 Internet d 2 d 3 hip:// download rates d i 2 Server DistribuPng a Large File Sending an F- bit file to N receivers TransmiSng NF bits at rate u s takes at least NF/u s Pme Receiving the data at the slowest receiver Slowest receiver has download rate d min = min i {d i } takes at least F/d min Pme Download Pme: max{nf/u s, F/d min } Speeding Up the File DistribuPon Increase the server upload rate Higher link bandwidth at the server MulPple servers, each with their own link lternapve: have the receivers help Receivers get a copy of the data and redistribute to other receivers To reduce the burden on the server 3 4 s Help DistribuPng a Large File F bits upload rate u s Internet d 1 d 3 u 1 u 2 u 3 d 2 d 4 u 4 s Help DistribuPng a Large File omponents of distribupon latency Server must send each bit: min Pme F/u s Slowest peer must receive each bit: min Pme F/d min Upload Pme using all upload resources Total number of bits: NF Total upload bandwidth u s + sum i (u i ) Total: max{f/u s, F/d min, NF/(u s +sum i (u i ))} upload rates u i 6 download 5 rates d i 1
2 - to- is Self- Scaling Download Pme grows slowly with N lient- server: max{nf/u s, F/d min } - to- peer: max{f/u s, F/d min, NF/(u s +sum i (u i ))} ut s may come and go s need to find each other s need to be willing to help each other LocaPng the Relevant s Three main approaches entral directory (Napster) Query flooding (Gnutella) Hierarchical overlay (Kazaa, modern Gnutella) Design goals Scalability Simplicity Robustness Plausible deniability to- Networks: Napster Napster history: the rise 1/99: Napster version 1.0 5/99: company founded 12/99: first lawsuits 2000: 80 million users Shawn Fanning, Northeastern freshman Napster history: the fall Mid 2001: out of business due to lawsuits Mid 2001: dozens of decentralized P2P alternapves 2003: growth of pay services like itunes Napster Directory Service lient contacts Napster (via TP) Provides a list of music files it will share and Napster s central server updates the directory lient searches on a Ptle or performer Napster idenpfies online clients with the file and provides their IP addresses lient requests the file from the chosen supplier Supplier transmits the file to the client oth client and supplier report status to Napster 9 10 Napster ProperPes Server s directory conpnually updated lways know what music is currently available Point of vulnerability for legal acpon - to- peer file transfer No load on the server Plausible deniability for legal acpon (but not enough) andwidth Suppliers ranked by apparent bandwidth and response Pme Napster: LimitaPons of Directory Single point of failure Performance boileneck opyright infringement File transfer is decentralized, but locapng content is highly centralized So, later P2P systems were more distributed Gnutella went to the other extreme
3 - to- Networks: Gnutella Gnutella: Search by Flooding 14 Gnutella history 2000: J. Frankel & T. Pepper released Gnutella Soon aier: many other clients (e.g., Morpheus, Limewire, earshare) 2001: protocol enhancements, e.g., ultrapeers Query flooding Join: contact a few nodes to become neighbors Publish: no need! Search: ask neighbors, who ask their neighbors Fetch: get file directly from another node xyz.mp3 search xyz.mp3? Flooding 13 Gnutella: Search by Flooding 15 Gnutella: Search by Flooding 16 xyz.mp3 xyz.mp3? transfer search Flooding Gnutella: Pros and ons dvantages Fully decentralized Search cost distributed Processing per node permits powerful search semanpcs Disadvantages Search scope may be quite large Search Pme may be quite long High overhead, and nodes come and go oien - to- Networks: Kaz KaZa history 2001: created by Dutch company (Kazaa V) Single network called FastTrack used by other clients as well Eventually protocol changed so others could no longer use it Super- node hierarchy Join: on start, the client contacts a super- node Publish: client sends list of files to its super- node Search: queries flooded among super- nodes Fetch: get file directly from one or more peers
4 KaZa: MoPvaPon for Super- Nodes Query consolidapon Many connected nodes may have only a few files PropagaPng query to a sub- node may take more Pme than for the super- node to answer itself Stability Super- node selecpon favors nodes with high up- Pme How long you ve been on is a good predictor of how long you ll be around in the future - to- Networks: ittorrent ittorrent history 2002:. ohen debuted ittorrent Emphasis on efficient fetching, not searching Distribute same file to many peers Single publisher, many downloaders PrevenPng free- loading IncenPves for peers to contribute ittorrent: Simultaneous Downloads Divide file into many chunks (e.g., 256 K) Replicate different chunks on different peers s can trade chunks with other peers can (hopefully) assemble the enpre file llows simultaneous downloading Retrieving different chunks from different peers nd uploading chunks to peers Important for very large files ittorrent: Infrastructure node Keeps track of peers parpcipapng in the torrent s registers with the tracker when it arrives selects peers for downloading Returns a random set of peer IP addresses So the new peer knows who to contact for data an have trackerless system Using distributed hash tables (DHTs) ittorrent: Overall rchitecture ittorrent: Overall rchitecture.torrent Get-announce
5 ittorrent: Overall rchitecture ittorrent: Overall rchitecture Response-peer list Shake-hand Shake-hand ittorrent: Overall rchitecture ittorrent: Overall rchitecture ittorrent: Overall rchitecture 29 Get-announce Response-peer list 30 ittorrent: hunk Request Order Which chunks to request? ould download in order Like an HTTP client does Problem: many peers have the early chunks s have liile to share with each other LimiPng the scalability of the system Problem: eventually nobody has rare chunks E.g., the chunks need the end of the file LimiPng the ability to complete a download SoluPons: random selecpon and rarest first 5
6 ittorrent: Rarest hunk First Which chunks to request first? The chunk with the fewest available copies I.e., the rarest chunk first enefits to the peer void starvapon when some peers depart enefits to the system void starvapon across all peers wanpng a file alance load by equalizing # of copies of chunks Free- Riding in P2P Networks Vast majority of users are free- riders Most share no files and answer no queries Others limit # of connecpons or upload speed few peers essenpally act as servers few individuals contribupng to the public good Making them hubs that basically act as a server ittorrent prevent free riding llow the fastest peers to download from you Occasionally let some free loaders download it- Torrent: PrevenPng Free- Riding has limited upload bandwidth nd must share it among mulpple peers Tit- for- tat: favor neighbors uploading at highest rate Rewarding the top four neighbors Measure download bit rates from each neighbor Reciprocate by sending to the top four peers OpPmisPc unchoking Randomly try a new neighbor every 30 seconds So new neighbor has a chance to be a beier partner 34 ittyrant: Gaming ittorrent ittorrent can be gamed, too uploads to top N peers at rate 1/N E.g., if N=4 and peers upload at 15, 12, 10, 9, 8, 3 peer uploading at rate 9 gets treated quite well est to be the N th peer in the list, rather than 1 st Offer just a bit more bandwidth than low- rate peers nd you ll spll be treated well by others ittyrant soiware Uploads at higher rates to higher- bandwidth peers hip://biiyrant.cs.washington.edu/ onclusions Finding the appropriate peers entralized directory (Napster) Query flooding (Gnutella) Super- nodes (KaZa) ittorrent Distributed download of large files np- free- riding techniques Great example of how change can happen so quickly in applicapon- level protocols 35 6
Professor Yashar Ganjali Department of Computer Science University of Toronto. yganjali@cs.toronto.edu http://www.cs.toronto.
Professor Yashar Ganjali Department of Computer Science University of Toronto yganjali@cs.toronto.edu http://www.cs.toronto.edu/~yganjali Announcements Programming assignment 2 Extended Deadline: Fri.
More informationCSCI-1680 CDN & P2P Chen Avin
CSCI-1680 CDN & P2P Chen Avin Based partly on lecture notes by Scott Shenker and John Jannotti androdrigo Fonseca And Computer Networking: A Top Down Approach - 6th edition Last time DNS & DHT Today: P2P
More informationN6Lookup( title ) Client
CS 640: Introduction Networks AdityaAkella Peer-to-Peer Lecture 24 -to Computer p2p Uses Downloading: Searching Centralized Flooding Smarter Routing file of sharing p2p The (Freenet, (Gnutella, flooding
More informationP2P: centralized directory (Napster s Approach)
P2P File Sharing P2P file sharing Example Alice runs P2P client application on her notebook computer Intermittently connects to Internet; gets new IP address for each connection Asks for Hey Jude Application
More informationPeer-to-Peer Networks 02: Napster & Gnutella. Christian Schindelhauer Technical Faculty Computer-Networks and Telematics University of Freiburg
Peer-to-Peer Networks 02: Napster & Gnutella Christian Schindelhauer Technical Faculty Computer-Networks and Telematics University of Freiburg Napster Shawn (Napster) Fanning - published 1999 his beta
More informationThe BitTorrent Protocol
The BitTorrent Protocol Taken from http://www.cs.uiowa.edu/~ghosh/bittorrent.ppt What is BitTorrent? Efficient content distribution system using file swarming. Usually does not perform all the functions
More informationPeer-to-Peer Networks. Chapter 2: Initial (real world) systems Thorsten Strufe
Chapter 2: Initial (real world) systems Thorsten Strufe 1 Chapter Outline Overview of (previously) deployed P2P systems in 3 areas P2P file sharing and content distribution: Napster, Gnutella, KaZaA, BitTorrent
More informationThe Role and uses of Peer-to-Peer in file-sharing. Computer Communication & Distributed Systems EDA 390
The Role and uses of Peer-to-Peer in file-sharing Computer Communication & Distributed Systems EDA 390 Jenny Bengtsson Prarthanaa Khokar jenben@dtek.chalmers.se prarthan@dtek.chalmers.se Gothenburg, May
More informationPEER TO PEER FILE SHARING USING NETWORK CODING
PEER TO PEER FILE SHARING USING NETWORK CODING Ajay Choudhary 1, Nilesh Akhade 2, Aditya Narke 3, Ajit Deshmane 4 Department of Computer Engineering, University of Pune Imperial College of Engineering
More informationAn Introduction to Peer-to-Peer Networks
An Introduction to Peer-to-Peer Networks Presentation for MIE456 - Information Systems Infrastructure II Vinod Muthusamy October 30, 2003 Agenda Overview of P2P Characteristics Benefits Unstructured P2P
More informationPeer-to-peer filetransfer protocols and IPv6. János Mohácsi NIIF/HUNGARNET TF-NGN meeting, 1/Oct/2004
-to-peer filetransfer protocols and IPv6 János Mohácsi NIIF/HUNGARNET TF-NGN meeting, 1/Oct/2004 Motivation IPv6 traffic is
More informationPeer-to-Peer Networks Organization and Introduction 1st Week
Peer-to-Peer Networks Organization and Introduction 1st Week Department of Computer Science 1 Peer-to-Peer Networks Organization 2 2 Web & Dates Web page http://cone.informatik.uni-freiburg.de/lehre/vorlesung/
More informationDNS and P2P File Sharing
Computer Networks DNS and P2P File Sharing Based on Computer Networking, 4 th Edition by Kurose and Ross DNS: Domain Name System People: many identifiers: SSN, name, passport # Internet hosts, routers:
More informationHW2 Grade. CS585: Applications. Traditional Applications SMTP SMTP HTTP 11/10/2009
HW2 Grade 70 60 CS585: Applications 50 40 30 20 0 0 2 3 4 5 6 7 8 9 0234567892022223242526272829303323334353637383940442 CS585\CS485\ECE440 Fall 2009 Traditional Applications SMTP Simple Mail Transfer
More informationOverlay Networks. Slides adopted from Prof. Böszörményi, Distributed Systems, Summer 2004.
Overlay Networks An overlay is a logical network on top of the physical network Routing Overlays The simplest kind of overlay Virtual Private Networks (VPN), supported by the routers If no router support
More informationSeminar RVS MC-FTP (Multicast File Transfer Protocol): Simulation and Comparison with BitTorrent
Seminar RVS MC-FTP (Multicast File Transfer Protocol): Simulation and Comparison with BitTorrent Dominic Papritz Universität Bern Overview > Related work > MC-FTP > BitTorrent > Future work > References
More informationA Study on the novel tool to retort P2P security issues
보안공학연구논문지 (Journal of Security Engineering), 제 5권 제 2 호, 2008년 4월 A Study on the novel tool to retort P2P security issues Martin Drahansky 1) Abstract The term File Sharing is the sharing of computer data
More informationP2P File Sharing: BitTorrent in Detail
ELT-53206 Peer-to-Peer Networks P2P File Sharing: BitTorrent in Detail Mathieu Devos Tampere University of Technology Department of Electronics & Communications Engineering mathieu.devos@tut.fi TG406 2
More informationPeer-to-Peer File Sharing
The Effects of File Sharing on a Service Provider's Network An Industry White Paper Copyright July 2002, Sandvine Incorporated www.sandvine.com 408 Albert Street Waterloo, Ontario Canada N2L 3V3 Executive
More informationIncentives Build Robustness in BitTorrent
Incentives Build Robustness in BitTorrent Bram Cohen bram@bitconjurer.org May 22, 2003 Abstract The BitTorrent file distribution system uses tit-fortat as a method of seeking pareto efficiency. It achieves
More informationDepartment of Computer Science Institute for System Architecture, Chair for Computer Networks. File Sharing
Department of Computer Science Institute for System Architecture, Chair for Computer Networks File Sharing What is file sharing? File sharing is the practice of making files available for other users to
More informationPeer-to-Peer Data Management
Peer-to-Peer Data Management Wolf-Tilo Balke Sascha Tönnies Institut für Informationssysteme Technische Universität Braunschweig http://www.ifis.cs.tu-bs.de 11. Content Distribution 1. Reliability in Distributed
More informationArchitectures and protocols in Peer-to-Peer networks
Architectures and protocols in Peer-to-Peer networks Ing. Michele Amoretti [amoretti@ce.unipr.it] II INFN SECURITY WORKSHOP Parma 24-25 February 2004 Contents - Definition of Peer-to-Peer network - P2P
More information2015 Internet Traffic Analysis
2015 Internet Traffic nalysis Computer Networks Sandvine s Global Internet Phenomena Report: https://www.sandvine.com/trends/global-internet-phenomena/ Lecture 8: Content Delivery Infrastructure: Peer-to-Peer
More informationA Success and Failure Factor Study of Peer-to-Peer File Sharing Systems. Christian Lüthold, Marc Weber
A Success and Failure Factor Study of Peer-to-Peer File Sharing Systems Christian Lüthold, Marc Weber Outline Setting Up the Stage Overview of File Sharing Systems Factors & Categories Conclusion Discussion
More informationLecture 6 Content Distribution and BitTorrent
ID2210 - Distributed Computing, Peer-to-Peer and GRIDS Lecture 6 Content Distribution and BitTorrent [Based on slides by Cosmin Arad] Today The problem of content distribution A popular solution: BitTorrent
More informationMiddleware and Distributed Systems. Peer-to-Peer Systems. Martin v. Löwis. Montag, 30. Januar 12
Middleware and Distributed Systems Peer-to-Peer Systems Martin v. Löwis Peer-to-Peer Systems (P2P) Concept of a decentralized large-scale distributed system Large number of networked computers (peers)
More informationThe Algorithm of Sharing Incomplete Data in Decentralized P2P
IJCSNS International Journal of Computer Science and Network Security, VOL.7 No.8, August 2007 149 The Algorithm of Sharing Incomplete Data in Decentralized P2P Jin-Wook Seo, Dong-Kyun Kim, Hyun-Chul Kim,
More informationDDoS Vulnerability Analysis of Bittorrent Protocol
DDoS Vulnerability Analysis of Bittorrent Protocol Ka Cheung Sia kcsia@cs.ucla.edu Abstract Bittorrent (BT) traffic had been reported to contribute to 3% of the Internet traffic nowadays and the number
More informationMulticast vs. P2P for content distribution
Multicast vs. P2P for content distribution Abstract Many different service architectures, ranging from centralized client-server to fully distributed are available in today s world for Content Distribution
More informationThree short case studies
Three short case studies peer to peer networking wireless systems search engines each includes issues of hardware processors, storage, peripherals, networks,... representation of information, analog vs.
More informationInformation Searching Methods In P2P file-sharing systems
Information Searching Methods In P2P file-sharing systems Nuno Alberto Ferreira Lopes PhD student (nuno.lopes () di.uminho.pt) Grupo de Sistemas Distribuídos Departamento de Informática Universidade do
More informationDecentralized Peer-to-Peer Network Architecture: Gnutella and Freenet
Decentralized Peer-to-Peer Network Architecture: Gnutella and Freenet AUTHOR: Jem E. Berkes umberkes@cc.umanitoba.ca University of Manitoba Winnipeg, Manitoba Canada April 9, 2003 Introduction Although
More informationFrom Centralization to Distribution: A Comparison of File Sharing Protocols
From Centralization to Distribution: A Comparison of File Sharing Protocols Xu Wang, Teng Long and Alan Sussman Department of Computer Science, University of Maryland, College Park, MD, 20742 August, 2015
More informationObject Request Reduction in Home Nodes and Load Balancing of Object Request in Hybrid Decentralized Web Caching
2012 2 nd International Conference on Information Communication and Management (ICICM 2012) IPCSIT vol. 55 (2012) (2012) IACSIT Press, Singapore DOI: 10.7763/IPCSIT.2012.V55.5 Object Request Reduction
More informationRESEARCH ISSUES IN PEER-TO-PEER DATA MANAGEMENT
RESEARCH ISSUES IN PEER-TO-PEER DATA MANAGEMENT Bilkent University 1 OUTLINE P2P computing systems Representative P2P systems P2P data management Incentive mechanisms Concluding remarks Bilkent University
More informationSE4C03: Computer Networks and Computer Security Last revised: April 03 2005 Name: Nicholas Lake Student Number: 0046314 For: S.
BitTorrent Technology How and why it works SE4C03: Computer Networks and Computer Security Last revised: April 03 2005 Name: Nicholas Lake Student Number: 0046314 For: S. Kartik Krishnan 1 Abstract BitTorrent
More informationJava Bit Torrent Client
Java Bit Torrent Client Hemapani Perera, Eran Chinthaka {hperera, echintha}@cs.indiana.edu Computer Science Department Indiana University Introduction World-wide-web, WWW, is designed to access and download
More informationEvolution of Peer-to-Peer Systems
EE 657 Lecture 9 on Sept. 28, 2007 Evolution of Peer-to-Peer Systems Peer-To-Peer Computing: Part 1 : P2P Platforms, Overlay Networks, and Gnutella Prof. kai Hwang University of Southern California Taylor
More informationCS 360 Internet Programming
Peer-to-Peer Networking File Sharing, and Computer Science Brigham Young University 1 Peer-to-Peer File Sharing with Ultrapeers Overview Peer-to-Peer File Sharing with Ultrapeers peer-to-peer peers exchange
More informationApplication Layer. CMPT371 12-1 Application Layer 1. Required Reading: Chapter 2 of the text book. Outline of Chapter 2
CMPT371 12-1 Application Layer 1 Application Layer Required Reading: Chapter 2 of the text book. Outline of Chapter 2 Network applications HTTP, protocol for web application FTP, file transfer protocol
More informationDistributed Computing over Communication Networks: Topology. (with an excursion to P2P)
Distributed Computing over Communication Networks: Topology (with an excursion to P2P) Some administrative comments... There will be a Skript for this part of the lecture. (Same as slides, except for today...
More informationImproving Gnutella Protocol: Protocol Analysis And Research Proposals
Improving Gnutella Protocol: Protocol Analysis And Research Proposals Igor Ivkovic Software Architecture Group (SWAG) Department of Computer Science University of Waterloo Waterloo, Ontario N2L 3G1 Canada
More informationClient/server and peer-to-peer models: basic concepts
Client/server and peer-to-peer models: basic concepts Dmitri Moltchanov Department of Communications Engineering Tampere University of Technology moltchan@cs.tut.fi September 04, 2013 Slides provided by
More informationCounteracting free riding in Peer-to-Peer networks q
Available online at www.sciencedirect.com Computer Networks 52 (2008) 675 694 www.elsevier.com/locate/comnet Counteracting free riding in Peer-to-Peer networks q Murat Karakaya *, _ Ibrahim Körpeoğlu,
More informationENABLING SEMANTIC SEARCH IN STRUCTURED P2P NETWORKS VIA DISTRIBUTED DATABASES AND WEB SERVICES
ENABLING SEMANTIC SEARCH IN STRUCTURED P2P NETWORKS VIA DISTRIBUTED DATABASES AND WEB SERVICES Maria Teresa Andrade FEUP / INESC Porto mandrade@fe.up.pt ; maria.andrade@inescporto.pt http://www.fe.up.pt/~mandrade/
More informationUsing Two-sided Market Approach. to Analyze the Peer-to-peer Economy 1
Using Two-sided Market Approach to Analyze the Peer-to-peer Economy 1 Jiangli DOU 2 Abstract In this paper, we use two-sided market approach to analyze how peer-to-peer network works and the end-users
More informationData Deduplication in BitTorrent. Thesis to obtain the Master of Science Degree in Information Systems and Computer Engineering
Data Deduplication in BitTorrent João Pedro Amaral Nunes Thesis to obtain the Master of Science Degree in Information Systems and Computer Engineering Examination Committee Chairperson: Prof. Nuno João
More informationA Survey of Peer-to-Peer Network Security Issues
1 of 8 1/9/2008 12:32 PM A Survey of Peer-to-Peer Network Security Issues James Li Abstract In recent years, peer-to-peer (P2P) networks have soared in popularity in the form of file sharing applications.
More informationCS5412: TORRENTS AND TIT-FOR-TAT
1 CS5412: TORRENTS AND TIT-FOR-TAT Lecture VI Ken Birman BitTorrent 2 Today we ll be focusing on BitTorrent The technology really has three aspects A standard tht BitTorrent client systems follow Some
More informationInterconnecting Unstructured P2P File Sharing Networks
Interconnecting Unstructured P2P File Sharing Networks Jaime Lloret Department of Communications, Polytechnic University of Valencia Camino de Vera s/n 46020 Valencia (Spain) Phone: +34 609549043 Fax:
More informationUnstructured vs. Structured P2P systems. Systems. Unstructured P2P File Sharing Systems. Development of P2P Applications
Uni Innsbruck Informatik - 1 Uni Innsbruck Informatik - 2 Unstructured vs. Structured 2 systems eer-to to-eer Systems Unstructured 2 File Sharing Systems Terms refer to information management: where are
More informationThe Internet is Flat: A brief history of networking over the next ten years. Don Towsley UMass - Amherst
The Internet is Flat: A brief history of networking over the next ten years Don Towsley UMass - Amherst 1 What does flat mean? The World Is Flat. A Brief History of the Twenty-First Century, Thomas Friedman
More informationHollyShare: Peer-to-Peer File Sharing Application
HollyShare: Peer-to-Peer File Sharing Application ICS 243A Class Project Songmei Han Bijit Hore Ilya Issenin Sean McCarthy Shannon Tauro HollyShare Project: Final Report 1 INTRODUCTION...3 SURVEY...5 Architecture
More informationOn the Penetration of Business Networks by P2P File Sharing
On the Penetration of Business Networks by P2P File Sharing Kevin Lee School of Computer Science, University of Manchester, Manchester, UK. +44 () 161 2756132 klee@cs.man.ac.uk Danny Hughes Computing,
More informationContent Distribution Network (CDN)
Content Distribution Network (CDN) Amir H. Payberah (amir@sics.se) Fatemeh Rahimian (fatemeh@sics.se) 1 GOAL What is Content Distribution Network (CDN)? The solutions for CDN. CDN applications File Sharing
More informationGiving life to today s media distribution services
Giving life to today s media distribution services FIA - Future Internet Assembly Athens, 17 March 2014 Presenter: Nikolaos Efthymiopoulos Network architecture & Management Group Copyright University of
More informationOn the Penetration of Business Networks by P2P File Sharing
On the Penetration of Business Networks by P2P File Sharing Kevin Lee School of Computer Science, University of Manchester, Manchester, M13 9PL, UK. +44 (0) 161 2756132 klee@cs.man.ac.uk Danny Hughes Computing,
More informationAdapting Distributed Hash Tables for Mobile Ad Hoc Networks
University of Tübingen Chair for Computer Networks and Internet Adapting Distributed Hash Tables for Mobile Ad Hoc Networks Tobias Heer, Stefan Götz, Simon Rieche, Klaus Wehrle Protocol Engineering and
More informationFile sharing using IP-Multicast
File sharing using IP-Multicast Kai Trojahner, Peter Sobe University of Luebeck, Germany Institute of Computer Engineering email: sobe@iti.uni-luebeck.de Abstract: File sharing systems cause a huge portion
More informationAUTOMATED AND ADAPTIVE DOWNLOAD SERVICE USING P2P APPROACH IN CLOUD
IMPACT: International Journal of Research in Engineering & Technology (IMPACT: IJRET) ISSN(E): 2321-8843; ISSN(P): 2347-4599 Vol. 2, Issue 4, Apr 2014, 63-68 Impact Journals AUTOMATED AND ADAPTIVE DOWNLOAD
More informationHomework 2 assignment for ECE374 Posted: 02/20/15 Due: 02/27/15
1 Homework 2 assignment for ECE374 Posted: 02/20/15 Due: 02/27/15 ote: In all written assignments, please show as much of your work as you can. Even if you get a wrong answer, you can get partial credit
More informationCS 5480/6480: Computer Networks Spring 2012 Homework 1 Solutions Due by 9:00 AM MT on January 31 st 2012
CS 5480/6480: Computer Networks Spring 2012 Homework 1 Solutions Due by 9:00 AM MT on January 31 st 2012 Important: No cheating will be tolerated. No extension. CS 5480 total points = 32 CS 6480 total
More informationMC-FTP (Multicast File Transfer Protocol): Implementation and Comparison with
MC-FTP (Multicast File Transfer Protocol): Implementation and Comparison with BitTorrent RVS Seminar HS 2007 MC-FTP (Multicast File Transfer Protocol): Implementation and Comparison with BitTorrent Alican
More informationIntroduction to Computer Networks
Introduction to Computer Networks Chen Yu Indiana University Basic Building Blocks for Computer Networks Nodes PC, server, special-purpose hardware, sensors Switches Links: Twisted pair, coaxial cable,
More informationCommon P2P Examples. Peer to Peer Networks. Client-Server Architecture. Uses of P2P. Napster Morpheus Gnutella Freenet BitTorrent Skype
Peer to Peer Networks Common P2P Examples Napster Morpheus Gnutella Freenet BitTorrent Skype 1 2 Uses of P2P Client-Server Architecture File sharing Instant messaging Voice communication Collaboration
More informationloss-tolerant and time sensitive loss-intolerant and time sensitive loss-intolerant and time insensitive
CS326e Quiz 5 The first correct 10 answers will be worth 1 point each. Each subsequent correct answer will be worth 0.2 points. Circle the correct answer. UTEID The transfer of an html file from one host
More informationThe Challenges of Stopping Illegal Peer-to-Peer File Sharing
The Challenges of Stopping Illegal Peer-to-Peer File Sharing Kevin Bauer Dirk Grunwald Douglas Sicker Department of Computer Science University of Colorado Context: The Rise of Peer-to-Peer 1993-2000:
More informationA Network Monitoring System with a Peer-to-Peer Architecture
A Network Monitoring System with a Peer-to-Peer Architecture Paulo Salvador, Rui Valadas University of Aveiro / Institute of Telecommunications Aveiro E-mail: salvador@av.it.pt; rv@det.ua.pt Abstract The
More informationA distributed system is defined as
A distributed system is defined as A collection of independent computers that appears to its users as a single coherent system CS550: Advanced Operating Systems 2 Resource sharing Openness Concurrency
More informationThe Bittorrent P2P File-sharing System: Measurements And Analysis J.A. Pouwelse, P. Garbacki, D.H.J. Epema, H.J. Sips Department of Computer Science,
The Bittorrent P2P File-sharing System: Measurements And Analysis J.A. Pouwelse, P. Garbacki, D.H.J. Epema, H.J. Sips Department of Computer Science, Delft University of Technology, the Netherlands BitTorrent
More informationCassandra A Decentralized, Structured Storage System
Cassandra A Decentralized, Structured Storage System Avinash Lakshman and Prashant Malik Facebook Published: April 2010, Volume 44, Issue 2 Communications of the ACM http://dl.acm.org/citation.cfm?id=1773922
More informationApplications & Application-Layer Protocols: The Domain Name System and Peerto-Peer
CPSC 360 Network Programming Applications & Application-Layer Protocols: The Domain Name System and Peerto-Peer Systems Michele Weigle Department of Computer Science Clemson University mweigle@cs.clemson.edu
More informationPerformance Modeling of BitTorrent Peer-to-Peer File Sharing Networks
Performance Modeling of BitTorrent Peer-to-Peer File Sharing Networks Kunjie Xu Graduate Telecommunications and Networking Program School of Information Science University of Pittsburgh Abstract BitTorrent
More informationHow To Make A Game Of Gnutella A Cooperative Game
CS 186 Lecture 3 P2P File-Sharing David C. Parkes Sven Seuken September 1, 2011 Imagine you need to distribute a software patch to 10 Million users. What s an efficient way for doing so? If you are using
More informationAnonymous Communication in Peer-to-Peer Networks for Providing more Privacy and Security
Anonymous Communication in Peer-to-Peer Networks for Providing more Privacy and Security Ehsan Saboori and Shahriar Mohammadi Abstract One of the most important issues in peer-to-peer networks is anonymity.
More informationP2P Node Setup Guide Authored by: Unitsa Sungket, Prince of Songkla University, Thailand Darran Nathan, APBioNet
Automatic Synchronization and Distribution of Biological Databases and Software over Low-Bandwidth Networks among Developing Countries P2P Node Setup Guide Authored by: Unitsa Sungket, Prince of Songkla
More informationHow To Create A P2P Network
Peer-to-peer systems INF 5040 autumn 2007 lecturer: Roman Vitenberg INF5040, Frank Eliassen & Roman Vitenberg 1 Motivation for peer-to-peer Inherent restrictions of the standard client/server model Centralised
More informationA Reputation Management and Selection Advisor Schemes for Peer-to-Peer Systems
A Reputation Management and Selection Advisor Schemes for Peer-to-Peer Systems Loubna Mekouar, Youssef Iraqi, and Raouf Boutaba University of Waterloo, Waterloo, Canada {lmekouar, iraqi, rboutaba}@bbcr.uwaterloo.ca
More informationSwanLink: Mobile P2P Environment for Graphical Content Management System
SwanLink: Mobile P2P Environment for Graphical Content Management System Popovic, Jovan; Bosnjakovic, Andrija; Minic, Predrag; Korolija, Nenad; and Milutinovic, Veljko Abstract This document describes
More informationPSON: A Scalable Peer-to-Peer File Sharing System Supporting Complex Queries
PSON: A Scalable Peer-to-Peer File Sharing System Supporting Complex Queries Jyoti Ahuja, Jun-Hong Cui, Shigang Chen, Li Lao jyoti@engr.uconn.edu, jcui@cse.uconn.edu, sgchen@cise.ufl.edu, llao@cs.ucla.edu
More informationNapster and Gnutella: a Comparison of two Popular Peer-to-Peer Protocols. Anthony J. Howe Supervisor: Dr. Mantis Cheng University of Victoria
Napster and Gnutella: a Comparison of two Popular Peer-to-Peer Protocols Anthony J Howe Supervisor: Dr Mantis Cheng University of Victoria February 28, 2002 Abstract This article presents the reverse engineered
More informationTitle: P2P Networks for Content Sharing
Title: P2P Networks for Content Sharing Authors: Choon Hoong Ding, Sarana Nutanong, and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory, Department of Computer Science and Software Engineering,
More informationEnergy Adaptive Mechanism for P2P File Sharing Protocols
Energy Adaptive Mechanism for P2P File Sharing Protocols Mayank Raj 1, Krishna Kant 2, and Sajal K. Das 1 1 Center for Research in Wireless Mobility and Networking (CReWMaN), Department of Computer Science
More informationHow To Use A Phone Over Ip (Phyto) For A Phone Call
SIP and VoIP Skype an example VoIP client 1 SIP / VoIP: what are these? Voice over IP (VoIP) Session Initiation Protocol (SIP) Control channel Known in telephone world as signaling channel Does call setup:
More informationAn Efficient Strategy for Data Recovery in Wi-Fi Systems
International Journal of Research & Development in Science and Technology Volume 1, Issue 2, December 2014, PP 1-6 ISSN 2350-4751 (Print) & ISSN 2350-4751(Online) An Efficient Strategy for Data Recovery
More informationPeer-to-Peer Networks for Content Sharing
Peer-to-Peer Networks for Content Sharing Choon Hoong Ding, Sarana Nutanong, and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory, Department of Computer Science and Software Engineering,
More informationUsing Mobile Agents for Network Resource Discovery in Peer-to-Peer Networks
Using Mobile Agents for Network Resource Discovery in Peer-to-Peer Networks Cameron Ross Dunne School of Computer Applications, Dublin City University, Dublin 9, Ireland. Peer-to-Peer networks continue
More informationPeer-to-Peer Botnets. Chapter 1. 1.1 Introduction
Chapter 1 Peer-to-Peer Botnets Ping Wang, Baber Aslam, Cliff C. Zou School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, Florida 32816 Botnet is a network of computers
More informationAn Analysis of the Skype Peer-to-Peer Internet Telephony Protocol
An Analysis of the Skype Peer-to-Peer Internet Telephony Protocol Written by: Salman A. Baset and Henning G. Schulzrinne (Colombia University, NY) CIS 6000 Distributed Systems Benjamin Ferriman bferrima@uoguelph.ca
More informationPeer-to-Peer Networks
Peer-to-Peer Networks Chapter 1: Introduction Jussi Kangasharju Chapter Outline Course outline and practical matters Peer-to-peer (P2P) overview Definition of P2P What is P2P and how it is different from
More informationData Deduplication and Tivoli Storage Manager
Data Deduplication and Tivoli Storage Manager Dave annon Tivoli Storage Manager rchitect March 2009 Topics Tivoli Storage, IM Software Group Deduplication technology Data reduction and deduplication in
More informationINTERNET CRIMES AGAINST CHILDREN: PEER-TO-PEER TECHNOLOGIES WEBCAST
THE NATIONAL CENTER FOR JUSTICE AND THE RULE OF LAW AND THE NATIONAL JUDICIAL COLLEGE INTERNET CRIMES AGAINST CHILDREN: PEER-TO-PEER TECHNOLOGIES WEBCAST Thank you for participating in our live webcast.
More informationP2P Storage Systems. Prof. Chun-Hsin Wu Dept. Computer Science & Info. Eng. National University of Kaohsiung
P2P Storage Systems Prof. Chun-Hsin Wu Dept. Computer Science & Info. Eng. National University of Kaohsiung Outline Introduction Distributed file systems P2P file-swapping systems P2P storage systems Strengths
More informationPeer-to-Peer File Sharing Across Private Networks Using Proxy Servers
Peer-to-Peer File Sharing Across Private Networks Using Proxy Servers by Shruti Dube DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING INDIAN INSTITUTE OF TECHNOLOGY, KANPUR May 2008 Peer-to-Peer File Sharing
More informationBitmessage: A Peer to Peer Message Authentication and Delivery System
Bitmessage: A Peer to Peer Message Authentication and Delivery System Jonathan Warren jonathan@bitmessage.org www.bitmessage.org November 27, 2012 Abstract. We propose a system that allows users to securely
More informationPeer-to-Peer Systems: "A Shared Social Network"
Peer-to-Peer Systems: "A Shared Social Network" Nguyen Hoang Anh Helsinki University of Technology hanguyen@cc.hut.fi Abstract In the last few years, the success of the Napster online music sharing program
More informationModeling an Agent-Based Decentralized File Sharing Network
Modeling an Agent-Based Decentralized File Sharing Network Alex Gonopolskiy Benjamin Nash December 18, 2007 Abstract In this paper we propose a distributed file sharing network model. We take inspiration
More informationAnalysis of the Traffic on the Gnutella Network
Analysis of the Traffic on the Gnutella Network Kelsey Anderson University of California, San Diego CSE222 Final Project March 21 Abstract The Gnutella network is an overlay network
More informationPeer-to-Peer: an Enabling Technology for Next-Generation E-learning
Peer-to-Peer: an Enabling Technology for Next-Generation E-learning Aleksander Bu lkowski 1, Edward Nawarecki 1, and Andrzej Duda 2 1 AGH University of Science and Technology, Dept. Of Computer Science,
More information