Measurements on the Spotify Peer-Assisted Music-on-Demand Streaming System

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Measurements on the Spotify Peer-Assisted Music-on-Demand Streaming System"

Transcription

1 The Spotify Protocol on the Spotify Peer-Assisted Music-on-Demand Streaming System Mikael Goldmann KTH Royal nstitute of Technology Spotify P2P 11, September on Spotify

2 Spotify Protocol overview P2P Overlay What is Spotify? On-demand peer-assisted music streaming Large catalog of music (over 15 million tracks) Available in US and 7 European countries, over 10 million users Over 1.6 million subscribers Fast (median playback latency of 265 ms) Legal on Spotify

3 The Spotify Protocol Spotify Protocol overview P2P Overlay Business dea More convenient than piracy Spotify Free (ads, 10h/month, invite needed in US) Spotify Unlimited (no ads, on computer) Spotify Premium (no ads, mobile, offline, AP) on Spotify

4 The Spotify Protocol Spotify Protocol overview P2P Overlay Business dea More convenient than piracy Spotify Free (ads, 10h/month, invite needed in US) Spotify Unlimited (no ads, on computer) Spotify Premium (no ads, mobile, offline, AP) on Spotify

5 The Spotify Protocol Spotify Protocol overview P2P Overlay Desktop Client on Spotify

6 The Spotify Protocol Spotify Protocol overview P2P Overlay Smartphone Client on Spotify

7 The Spotify Protocol Spotify Protocol overview P2P Overlay Hardware Clients on Spotify

8 The Spotify Protocol Spotify Protocol overview P2P Overlay Speed Photo by moogs CC BY NC ND 2.0 on Spotify

9 The Spotify Protocol Spotify Protocol overview P2P Overlay Overview of Spotify Protocol Proprietary protocol Designed for on-demand streaming Only Spotify can add tracks kbps audio streams (most are Ogg Vorbis q5, 160 kbps) Relatively simple and straightforward design Photo by opethpainter CC BY 2.0 on Spotify

10 Spotify Protocol overview P2P Overlay Spotify Protocol (Almost) Everything encrypted (Almost) Everything over TCP Multiplex messages over a single TCP connection Persistent TCP connection to server while logged in on Spotify

11 Spotify Protocol overview P2P Overlay Caches Player caches tracks it has played Default policy is to use 10% of free space (capped at 10 GB) Caches are large (56% are over 5 GB) Over 50% of data comes from local cache Cached files are served in P2P overlay on Spotify

12 Spotify Protocol overview P2P Overlay Streaming a Track Request first piece from Spotify servers Meanwhile, search for peers with track Download data in-order When buffers are sufficient, only download from P2P Towards end of a track, start prefetching next one on Spotify

13 Spotify Protocol overview P2P Overlay P2P Structure Unstructured overlay Nodes have fixed maximum degree (60) Neighbor eviction by heuristic evaluation of utility No overlay routing A user only downloads data she needs on Spotify

14 The Spotify Protocol Spotify Protocol overview P2P Overlay Downloading in P2P Ask for most urgent pieces first f a peer is slow, re-request from new peers When buffers are low, download from central server as well When doing so, estimate what point P2P will catch up from f buffers are very low, stop uploading on Spotify

15 Spotify Protocol overview P2P Overlay Music vs. Movies Music Small (5 minutes, 5 MB) Many plays/session Large catalog Active users Main problem: peer discovery Movies Large (2 hours, 1.5 GB) High bit rate Main problem: download strategy on Spotify

16 Spotify Protocol overview P2P Overlay Music vs. Movies Music Small (5 minutes, 5 MB) Many plays/session Large catalog Active users Main problem: peer discovery Movies Large (2 hours, 1.5 GB) High bit rate Main problem: download strategy on Spotify

17 The Spotify Protocol Spotify Protocol overview P2P Overlay Finding Peers Partial tracker (BitTorrent style) Only remembers 20 peers per track Returns 10 (online) peers to client on query Broadcast query in small (2 hops) neighborhood in overlay (Gnutella style) LAN peer discovery (cherry on top) Client uses all mechanisms for every track on Spotify

18 Network Evaluation So, how well does it work? Data both from 2010 study (P2P 10) and this work on Spotify

19 Network Data Sources (from 2010) % Weekday Morning Data source - ratio - by week Weekend Night RRDTOOL / TOB OETKER Mon Tue Wed Thu Fri Sat Sun Mon Cur: Min: Avg: Server P2P Cache on Spotify

20 Network Data Sources Somewhat sensitive to churn Better P2P performance on weekends 8.8% from servers 35.8% from P2P 55.4% from caches on Spotify

21 The Spotify Protocol Network Finding Peers (from 2010) Table: Sources of peers Sources for peers Tracker and overlay Only Tracker Only overlay No Peers Found Fraction of searches 75.1% 9.0% 7.0% 8.9% Each mechanism by itself is fairly effective on Spotify

22 Network The overlay peer discovery mechanism Percentage of requests for which peers were found at distance d in overlay search (weekdays) ES F FR GB NL NO SE 60 % d=1 d=2 d=1 and/or d=2 on Spotify

23 Network The weekend effect in peer discovery Percentage of requests for which peers were found at distance d in overlay search ES,weekday ES,weekend FR,weekday FR,weekend 60 % d=1 d=2 d=1 and/or d=2 on Spotify

24 Network Users become slowly disconnected from overlay 60 Median Number of peers Minutes since login on Spotify

25 Network Users become slowly disconnected from overlay 60 Median 60th percentile Number of peers Minutes since login on Spotify

26 Network Users become slowly disconnected from overlay Median 60th percentile 70th percentile 40 Number of peers Minutes since login on Spotify

27 Network Users become slowly disconnected from overlay Median 60th percentile 70th percentile 80th percentile 40 Number of peers Minutes since login on Spotify

28 Network Users become slowly disconnected from overlay Median 60th percentile 70th percentile 80th percentile 90th percentile 40 Number of peers Minutes since login on Spotify

29 Network Users become slowly disconnected from overlay Median 60th percentile 70th percentile 80th percentile 90th percentile 95th percentile 40 Number of peers Minutes since login on Spotify

30 The Spotify Protocol Network NAT types in the wild Photo by roychung CC BY NC 2.0 on Spotify

31 Network NAT types in the wild 100 Percentage of P addresses with various NAT properties No NAT % ES F FR GB NL NO SE on Spotify

32 Network NAT types in the wild Percentage of P addresses with various NAT properties No NAT UPnP worked UPnP mismatch UPnP private P 60 % ES F FR GB NL NO SE on Spotify

33 The Spotify Protocol Network How many Ps do users have Photo by feria CC BY NC SA 2.0 on Spotify

34 Network How many Ps do users have 100 Distinct P addresses a user connects from over a week (CDF) GB % Number of Ps on Spotify

35 Network How many Ps do users have Distinct P addresses a user connects from over a week (CDF) ES GB 80 % Number of Ps on Spotify

36 Network How many Ps do users have Distinct P addresses a user connects from over a week (CDF) ES GB NL 80 % Number of Ps on Spotify

37 Network How many Ps do users have Distinct P addresses a user connects from over a week (CDF) ES F FR GB NL NO SE % Number of Ps on Spotify

38 The Spotify Protocol Network of a large, deployed system Future work Scaling to more users mprovements of P2P protocol More measurements (what are you interested in?) on Spotify

ABSTRACT Acknowledgments List of Abbreviations Contents ABSTRACT 3 Acknowledgments 5 List of Abbreviations 7 List of Figures 15 List of Tables 23 1 Introduction 25 2 Motivation and background 29 3 Overview

More information

P2P: centralized directory (Napster s Approach)

P2P: 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 information

Aqua Accelerated Protocol (AAP) For Mac User Manual

Aqua Accelerated Protocol (AAP) For Mac User Manual Aqua Accelerated Protocol (AAP) For Mac User Manual Table of Contents About Aqua Accelerated Protocol...3 System Requirements... 4 Hardware (Client)... 4 Hardware (Server Connecting to)... 4 Software (AAP

More information

Citrix Application Streaming. Universal Application Packaging and Delivery Breaking Away from Traditional IT

Citrix Application Streaming. Universal Application Packaging and Delivery Breaking Away from Traditional IT Citrix Application Streaming Universal Application Packaging and Delivery Breaking Away from Traditional IT Application Packaging Application Delivery to Endpoint Devices Application Isolation Mode Automatic

More information

CSCI-1680 CDN & P2P Chen Avin

CSCI-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 information

Delft University of Technology Parallel and Distributed Systems Report Series. Understanding User Behavior in Spotify

Delft University of Technology Parallel and Distributed Systems Report Series. Understanding User Behavior in Spotify Delft University of Technology Parallel and Distributed Systems Report Series Understanding User Behavior in Spotify Boxun Zhang, Gunnar Kreitz, Marcus Isaksson, Javier Ubillos {B.Zhang}@tudelft.nl Guido

More information

The 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 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 information

Maygh: Building a CDN from client web browsers

Maygh: Building a CDN from client web browsers Maygh: Building a CDN from client web browsers Fangfei Zhou Alan Mislove Ravi Sundaram Northeastern University EuroSys 13, Prague Content exchange and the Web Web is popular mechanism for content distribution

More information

Unit 3 - Advanced Internet Architectures

Unit 3 - Advanced Internet Architectures Unit 3 - Advanced Internet Architectures Carlos Borrego Iglesias, Sergi Robles Carlos.Borrego@uab.cat,Sergi.Robles@uab.cat Departament d Enginyeria de la Informació i de les Comunicacions Universitat Autònoma

More information

Protocols. Packets. What's in an IP packet

Protocols. Packets. What's in an IP packet Protocols Precise rules that govern communication between two parties TCP/IP: the basic Internet protocols IP: Internet Protocol (bottom level) all packets shipped from network to network as IP packets

More information

A Measurement Study of Peer-to-Peer File Sharing Systems

A Measurement Study of Peer-to-Peer File Sharing Systems CSF641 P2P Computing 點 對 點 計 算 A Measurement Study of Peer-to-Peer File Sharing Systems Stefan Saroiu, P. Krishna Gummadi, and Steven D. Gribble Department of Computer Science and Engineering University

More information

HW2 Grade. CS585: Applications. Traditional Applications SMTP SMTP HTTP 11/10/2009

HW2 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 information

IVR (Interactive Voice Response) Operation Manual. Copyright 2012 Agile Networks, Inc. All Rights Reserved.

IVR (Interactive Voice Response) Operation Manual. Copyright 2012 Agile Networks, Inc. All Rights Reserved. IVR (Interactive Voice Response) Operation Manual Copyright 2012 Agile Networks, Inc. All Rights Reserved. Table of Contents ddw Settings (Setting User Information) An Agile Cloud PBX Option feature. This

More information

The Feasibility of Supporting Large-Scale Live Streaming Applications with Dynamic Application End-Points

The Feasibility of Supporting Large-Scale Live Streaming Applications with Dynamic Application End-Points The Feasibility of Supporting Large-Scale Live Streaming Applications with Dynamic Application End-Points Kay Sripanidkulchai, Aditya Ganjam, Bruce Maggs, and Hui Zhang Instructor: Fabian Bustamante Presented

More information

Advanced Peer to Peer Discovery and Interaction Framework

Advanced Peer to Peer Discovery and Interaction Framework Advanced Peer to Peer Discovery and Interaction Framework Peeyush Tugnawat J.D. Edwards and Company One, Technology Way, Denver, CO 80237 peeyush_tugnawat@jdedwards.com Mohamed E. Fayad Computer Engineering

More information

Source Live 2.0 User Guide

Source Live 2.0 User Guide Source Live 2.0 User Guide 1 Contents 1. Introducing Source Live 2. Installation and network requirements 2.1 System requirements 2.2 Supported hosts and DAWs 2.3 Network configuration and requirements

More information

1. The Web: HTTP; file transfer: FTP; remote login: Telnet; Network News: NNTP; e-mail: SMTP.

1. The Web: HTTP; file transfer: FTP; remote login: Telnet; Network News: NNTP; e-mail: SMTP. Chapter 2 Review Questions 1. The Web: HTTP; file transfer: FTP; remote login: Telnet; Network News: NNTP; e-mail: SMTP. 2. Network architecture refers to the organization of the communication process

More information

Examples Peer-to-Peer Applications. (Gnutella, Kazaa, BitTorrent, Skype)

Examples Peer-to-Peer Applications. (Gnutella, Kazaa, BitTorrent, Skype) Examples Peer-to-Peer Applications (Gnutella, Kazaa, BitTorrent, Skype) Second generation approach Gnutella Fully distributed approach Constructs Gnutella overlay network What is an overlay network? How

More information

Should Internet Service Providers Fear Peer-Assisted Content Distribution?

Should Internet Service Providers Fear Peer-Assisted Content Distribution? Should Internet Service Providers Fear Peer-Assisted Content Distribution? Thomas Karagiannis, UC Riverside Pablo Rodriguez, Microsoft Research Cambridge Konstantina Papagiannaki, Intel Research Cambridge

More information

Tuning Tableau Server for High Performance

Tuning Tableau Server for High Performance Tuning Tableau Server for High Performance I wanna go fast PRESENT ED BY Francois Ajenstat Alan Doerhoefer Daniel Meyer Agenda What are the things that can impact performance? Tips and tricks to improve

More information

How Kontiki Takes Live Video Broadcasting to the Next Level

How Kontiki Takes Live Video Broadcasting to the Next Level How Kontiki Takes Live Video Broadcasting to the Next Level Executive Summary Today, there is a huge pent up demand for live video in the enterprise for everything from executive & CEO updates to marketing

More information

Internet access for home and business. home business internet

Internet access for home and business. home business internet Internet access for home and business home business internet Manx Telecom is the Island s leading Internet Service Provider. We offer a range of Internet access products and services to suit everyone,

More information

What is a NAS drive...?

What is a NAS drive...? What is a NAS drive...? Setting up a NAS drive allows your digital music to be played through the NP30, even if your computer isn t switched on. A NAS (Network Attached Storage) drive is essentially a

More information

Hardware Configuration Guide

Hardware Configuration Guide Hardware Configuration Guide Contents Contents... 1 Annotation... 1 Factors to consider... 2 Machine Count... 2 Data Size... 2 Data Size Total... 2 Daily Backup Data Size... 2 Unique Data Percentage...

More information

LogMeIn Hamachi. Getting Started Guide

LogMeIn Hamachi. Getting Started Guide LogMeIn Hamachi Getting Started Guide Contents What Is LogMeIn Hamachi?...3 Who Should Use LogMeIn Hamachi?...3 The LogMeIn Hamachi Client...4 About the Relationship Between the Client and Your LogMeIn

More information

Live and On-Demand Video with Silverlight and IIS Smooth Streaming

Live and On-Demand Video with Silverlight and IIS Smooth Streaming Live and On-Demand Video with Silverlight and IIS Smooth Streaming Microsoft Corporation February 2010 Contents Contents...2 Introduction...3 The Challenges Associated with Current Online Video Delivery

More information

Chapter 2 Architectures. Layered Architecture

Chapter 2 Architectures. Layered Architecture Chapter 2 Architectures Software architecture logical organization of the software components Architectural styles: layered, object based, eventbased, shared data space System architecture the instantiation

More information

Peer-to-Peer Networks. Chapter 6: P2P Content Distribution

Peer-to-Peer Networks. Chapter 6: P2P Content Distribution Peer-to-Peer Networks Chapter 6: P2P Content Distribution Chapter Outline Content distribution overview Why P2P content distribution? Network coding Peer-to-peer multicast Kangasharju: Peer-to-Peer Networks

More information

Mobile Devices: Server and Management Lesson 05 Service Discovery

Mobile Devices: Server and Management Lesson 05 Service Discovery Mobile Devices: Server and Management Lesson 05 Service Discovery Oxford University Press 2007. All rights reserved. 1 Service discovery An adaptable middleware in a device (or a mobile computing system)

More information

CDN and Traffic-structure

CDN and Traffic-structure CDN and Traffic-structure Outline Basics CDN Traffic Analysis 2 Outline Basics CDN Building Blocks Services Evolution Traffic Analysis 3 A Centralized Web! Slow content must traverse multiple backbones

More information

Kontiki Enterprise Video Platform

Kontiki Enterprise Video Platform Kontiki Enterprise Video Platform A Better Way Successful companies engage their organizations using communication that reaches every employee globally and inspires them to work toward a shared vision.

More information

The 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 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 information

Receptionist-Small Business Administrator guide

Receptionist-Small Business Administrator guide Receptionist-Small Business Administrator guide What is it? Receptionist-Small Business works with your desk phone, soft phone, or mobile device so you can control calls, monitor the lines of employees,

More information

Key Term Quiz Answers

Key Term Quiz Answers Key Term Quiz Answers The Internet Use the Key Terms list to complete the sentences that follow. Not all terms will be used. 1. The time it takes for a packet to travel to its destination and back is called

More information

A. Related Measurement Work on Mesh-pull Streaming Systems

A. Related Measurement Work on Mesh-pull Streaming Systems Inferring Network-Wide Quality in P2P Live Streaming Systems Xiaojun Hei, Yong Liu and Keith W. Ross Department of Computer and Information Science Department of Electrical and Computer Engineering Polytechnic

More information

Challenges, Design and Analysis of a Large-scale P2P-VoD System

Challenges, Design and Analysis of a Large-scale P2P-VoD System Challenges, Design and Analysis of a Large-scale P2P-VoD System Yan Huang, Tom Z. J. Fu, Dah-Ming Chiu, John C. S. Lui and Cheng Huang {galehuang, ivanhuang}@pplive.com, Shanghai Synacast Media Tech. {zjfu6,

More information

Today. Architectural Styles

Today. Architectural Styles Today Architectures for distributed systems (Chapter 2) Centralized, decentralized, hybrid Middleware Self-managing systems Lecture 2, page 1 Architectural Styles Important styles of architecture for distributed

More information

Copyright (Infringing File Sharing) Amendment Bill 2010 - further glossary of terms relating to File Sharing and the Digital Environment

Copyright (Infringing File Sharing) Amendment Bill 2010 - further glossary of terms relating to File Sharing and the Digital Environment Copyright (Infringing File Sharing) Amendment Bill 2010 - further glossary of terms relating to File Sharing and the Digital Environment As requested by the Commerce Select Committee Contents Introduction

More information

VIA CONNECT PRO Deployment Guide

VIA CONNECT PRO Deployment Guide VIA CONNECT PRO Deployment Guide www.true-collaboration.com Infinite Ways to Collaborate CONTENTS Introduction... 3 User Experience... 3 Pre-Deployment Planning... 3 Connectivity... 3 Network Addressing...

More information

CS 360 Internet Programming

CS 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 information

Providing Video-on-Demand using Peer-to-Peer Networks

Providing Video-on-Demand using Peer-to-Peer Networks Providing Video-on-Demand using Peer-to-Peer Networks S. Annapureddy New York University C. Gkantsidis, P. Rodriguez, and L. Massoulie Microsoft Research, Cambridge Abstract Digital media companies have

More information

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. 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 information

Computer Networks and the Internet

Computer Networks and the Internet ? Computer the IMT2431 - Data Communication and Network Security January 7, 2008 ? Teachers are Lasse Øverlier and http://www.hig.no/~erikh Lectures and Lab in A126/A115 Course webpage http://www.hig.no/imt/in/emnesider/imt2431

More information

Strategies. Addressing and Routing

Strategies. Addressing and Routing Strategies Circuit switching: carry bit streams original telephone network Packet switching: store-and-forward messages Internet Spring 2007 CSE 30264 14 Addressing and Routing Address: byte-string that

More information

Bandwidth Control. Table of Contents. General Information. Summary. Specifications

Bandwidth Control. Table of Contents. General Information. Summary. Specifications Bandwidth Control Document revision 1.5 (Fri Feb 03 15:15:03 GMT 2006) This document applies to V2.9 Table of Contents Table of Contents Summary Specifications Related Documents Description Additional

More information

Kollective Technology Overview

Kollective Technology Overview Kollective Technology Overview HOW IT WORKS As enterprise networks have grown in size, complexity and importance, corporate IT often struggles to keep up with the pace of change. Traditional networks,

More information

Delivering SharePoint Solutions with Citrix Application Delivery Infrastructure

Delivering SharePoint Solutions with Citrix Application Delivery Infrastructure Delivering SharePoint Solutions with Citrix Application Delivery Infrastructure Solve Your Remote Worker Challenges Rick Davis Systems Engineer Citrix Systems, Inc. Our Vision for Business A world where

More information

networks Live & On-Demand Video Delivery without Interruption Wireless optimization the unsolved mystery WHITE PAPER

networks Live & On-Demand Video Delivery without Interruption Wireless optimization the unsolved mystery WHITE PAPER Live & On-Demand Video Delivery without Interruption Wireless optimization the unsolved mystery - Improving the way the world connects - WHITE PAPER Live On-Demand Video Streaming without Interruption

More information

On the Penetration of Business Networks by P2P File Sharing

On 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 information

CNT5106C Project Description

CNT5106C Project Description Last Updated: 1/30/2015 12:48 PM CNT5106C Project Description Project Overview In this project, you are asked to write a P2P file sharing software similar to BitTorrent. You can complete the project in

More information

Source-Live 1.3 User Guide

Source-Live 1.3 User Guide Source-Live 1.3 User Guide Source Elements 2005-2011 Source-Live 1.3 User Guide 1 1. Introducing Source-Live Source-Live is an RTAS and VST plug-in for Avid Pro Tools and supported VST hosts. Source- Live

More information

District of Columbia Courts Attachment 1 Video Conference Bridge Infrastructure Equipment Performance Specification

District of Columbia Courts Attachment 1 Video Conference Bridge Infrastructure Equipment Performance Specification 1.1 Multipoint Control Unit (MCU) A. The MCU shall be capable of supporting (20) continuous presence HD Video Ports at 720P/30Hz resolution and (40) continuous presence ports at 480P/30Hz resolution. B.

More information

Three short case studies

Three 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 information

DDoS Vulnerability Analysis of Bittorrent Protocol

DDoS 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 information

Microsoft Smooth Streaming

Microsoft Smooth Streaming Microsoft Smooth Streaming for SelenioFlex Ingest August 2015 for SelenioFlex Ingest Publication Information 2015 Imagine Communications Corp. Proprietary and Confidential. Imagine Communications considers

More information

Trace Driven Analysis of the Long Term Evolution of Gnutella Peer-to-Peer Traffic

Trace Driven Analysis of the Long Term Evolution of Gnutella Peer-to-Peer Traffic Trace Driven Analysis of the Long Term Evolution of Gnutella Peer-to-Peer Traffic William Acosta and Surendar Chandra University of Notre Dame, Notre Dame IN, 46556, USA {wacosta,surendar}@cse.nd.edu Abstract.

More information

Peer-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 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 information

Skype network has three types of machines, all running the same software and treated equally:

Skype network has three types of machines, all running the same software and treated equally: What is Skype? Why is Skype so successful? Everybody knows! Skype is a P2P (peer-to-peer) Voice-Over-IP (VoIP) client founded by Niklas Zennström and Janus Friis also founders of the file sharing application

More information

MEGA Web Application Architecture Overview MEGA 2009 SP4

MEGA Web Application Architecture Overview MEGA 2009 SP4 Revised: September 2, 2010 Created: March 31, 2010 Author: Jérôme Horber CONTENTS Summary This document describes the system requirements and possible deployment architectures for MEGA Web Application.

More information

Kontiki Enterprise Content Delivery Network

Kontiki Enterprise Content Delivery Network Kontiki Enterprise Content Delivery Network Best Delivery and Highest Quality Video for All Video is one of the most powerful forms of communication, and one that is increasingly used by leading global

More information

Wowza Media Systems provides all the pieces in the streaming puzzle, from capture to delivery, taking the complexity out of streaming live events.

Wowza Media Systems provides all the pieces in the streaming puzzle, from capture to delivery, taking the complexity out of streaming live events. Deciding what event you want to stream live that s the easy part. Figuring out how to stream it? That s a different question, one with as many answers as there are options. Cameras? Encoders? Origin and

More information

Lync for Mac 2011 Deployment Guide

Lync for Mac 2011 Deployment Guide 2011 Deployment Guide Getting Started Information in this document, including URL and other Internet Web site references, is subject to change without notice. Content in this document represents the current

More information

On the Penetration of Business Networks by P2P File Sharing

On 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 information

Automated Planning for Open Network Architectures Alexey Rudenko

Automated Planning for Open Network Architectures Alexey Rudenko Automated Planning for Open Network Architectures Alexey Rudenko Advisors: Peter Reiher and Gerald J. Popek University of California, Los Angeles June 2002 1 Motivation Goal Introduction Distributed adaptations

More information

System Requirement Specification for A Distributed Desktop Search and Document Sharing Tool for Local Area Networks

System Requirement Specification for A Distributed Desktop Search and Document Sharing Tool for Local Area Networks System Requirement Specification for A Distributed Desktop Search and Document Sharing Tool for Local Area Networks OnurSoft Onur Tolga Şehitoğlu November 10, 2012 v1.0 Contents 1 Introduction 3 1.1 Purpose..............................

More information

Giving life to today s media distribution services

Giving 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 information

Adaptive HTTP streaming and HTML5. 1 Introduction. 1.1 Netflix background. 1.2 The need for standards. W3C Web and TV Workshop, 8-9 February 2011

Adaptive HTTP streaming and HTML5. 1 Introduction. 1.1 Netflix background. 1.2 The need for standards. W3C Web and TV Workshop, 8-9 February 2011 W3C Web and TV Workshop, 8-9 February 2011 Adaptive HTTP streaming and HTML5 Mark Watson, Netflix Inc. 1 Introduction 1.1 Netflix background Netflix is a leading provider of streaming video services in

More information

YouServ: A Web Hosting and Content Sharing Tool for the Masses

YouServ: A Web Hosting and Content Sharing Tool for the Masses YouServ: A Web Hosting and Content Sharing Tool for the Masses Roberto Bayardo IBM Almaden Research Center Joint work with Rakesh Agrawal, Daniel Gruhl, and Amit Somani Goal Allow people to easily share

More information

SAN/iQ Remote Copy Networking Requirements OPEN iscsi SANs 1

SAN/iQ Remote Copy Networking Requirements OPEN iscsi SANs 1 SAN/iQ Remote Copy Networking Requirements OPEN iscsi SANs 1 Application Note: SAN/iQ Remote Copy Networking Requirements SAN/iQ Remote Copy provides the capability to take a point in time snapshot of

More information

An Active Packet can be classified as

An Active Packet can be classified as Mobile Agents for Active Network Management By Rumeel Kazi and Patricia Morreale Stevens Institute of Technology Contact: rkazi,pat@ati.stevens-tech.edu Abstract-Traditionally, network management systems

More information

Cisco WAAS Express. Product Overview. Cisco WAAS Express Benefits. The Cisco WAAS Express Advantage

Cisco WAAS Express. Product Overview. Cisco WAAS Express Benefits. The Cisco WAAS Express Advantage Data Sheet Cisco WAAS Express Product Overview Organizations today face several unique WAN challenges: the need to provide employees with constant access to centrally located information at the corporate

More information

Step-by-Step Configuration

Step-by-Step Configuration Step-by-Step Configuration Kerio Technologies C 2001-2003 Kerio Technologies. All Rights Reserved. Printing Date: December 17, 2003 This guide provides detailed description on configuration of the local

More information

Ring Protection: Wrapping vs. Steering

Ring Protection: Wrapping vs. Steering Ring Protection: Wrapping vs. Steering Necdet Uzun and Pinar Yilmaz March 13, 2001 Contents Objectives What are wrapping and steering Single/dual fiber cut Comparison of wrapping and steering Simulation

More information

Step-by-Step Configuration

Step-by-Step Configuration Step-by-Step Configuration Kerio Technologies Kerio Technologies. All Rights Reserved. Printing Date: August 15, 2007 This guide provides detailed description on configuration of the local network which

More information

Auto attendant/greetings/time spans - Hosted PBX 1. Grettings

Auto attendant/greetings/time spans - Hosted PBX 1. Grettings Auto attendant/greetings/time spans - Hosted PBX 1. Grettings This module allows you to record your own greetings for answering rules or welcome messages for receptionist. There is also an option to upload

More information

Multimedia transmission in a managed P2P network: making sense?

Multimedia transmission in a managed P2P network: making sense? Multimedia transmission in a managed P2P network: making sense? L. Xu 1, A. Ksentini 2, K. Singh 1, G. Rubino 1, G. Straub 3, Y. L Azou 4 1 INRIA Rennes - Bretagne Atlantique, Rennes, France; 2 IRISA-University

More information

Customer Site Requirements for incontact Workforce Optimization 16.2. www.incontact.com

Customer Site Requirements for incontact Workforce Optimization 16.2. www.incontact.com Customer Site Requirements for incontact Workforce Optimization 16.2 www.incontact.com Customer Site Requirements for incontact Workforce Optimization Version 16.2 Last Revision June 2016 About incontact

More information

Streaming Explained. Streaming services are usually broken down into the following categories:

Streaming Explained. Streaming services are usually broken down into the following categories: Streaming Explained Streaming is the term used when audio or video data is fed in a continuous stream to a PC via the internet rather than being downloaded to the PC's hard drive. This means that the viewer

More information

Scalable Internet/Scalable Storage. Seif Haridi KTH/SICS

Scalable Internet/Scalable Storage. Seif Haridi KTH/SICS Scalable Internet/Scalable Storage Seif Haridi KTH/SICS Interdisk: The Big Idea 2 Interdisk: The Big Idea I: 3 Interdisk: The Big Idea I: Internet is global data communication 4 Interdisk: The Big Idea

More information

VIA COLLAGE Deployment Guide

VIA COLLAGE Deployment Guide VIA COLLAGE Deployment Guide www.true-collaboration.com Infinite Ways to Collaborate CONTENTS Introduction... 3 User Experience... 3 Pre-Deployment Planning... 3 Connectivity... 3 Network Addressing...

More information

SOMA Cryptography Whitepaper

SOMA Cryptography Whitepaper SOMA Cryptography Whitepaper Draft date: Nov. 1st, 2015 Contents Overview 2 Secure Transport Layer Protocol 3 AES256 Key Generation 3 Login Data Verification 3 Secure Transport Layer Establishment 4 Data

More information

LAN TCP/IP and DHCP Setup

LAN TCP/IP and DHCP Setup CHAPTER 2 LAN TCP/IP and DHCP Setup 2.1 Introduction In this chapter, we will explain in more detail the LAN TCP/IP and DHCP Setup. 2.2 LAN IP Network Configuration In the Vigor 2900 router, there are

More information

RWC4YD3S723QRVHHHIZWJXPTQMO6GKEQR

RWC4YD3S723QRVHHHIZWJXPTQMO6GKEQR Try it now: We have setup a Sync folder in the BitTorrent office that contains 1.1GB of BitTorrent Featured Content. You are welcome to sync with it by using the following secret key: RWC4YD3S723QRVHHHIZWJXPTQMO6GKEQR

More information

Wowza MediaCache Deployment Architecture

Wowza MediaCache Deployment Architecture Wowza MediaCache Deployment Architecture Version 1.4 www.wowza.com Copyright 2013 Wowza Media Systems, LLC. All rights reserved. 1 Abstract Wowza Media Server provides the functionality to serve on-demand

More information

The Internet. Charging for Internet. What does 1000M and 200M mean? Dr. Hayden Kwok-Hay So

The Internet. Charging for Internet. What does 1000M and 200M mean? Dr. Hayden Kwok-Hay So The Internet CCST9015 Feb 6, 2013 What does 1000M and 200M mean? Dr. Hayden Kwok-Hay So Department of Electrical and Electronic Engineering 2 Charging for Internet One is charging for speed (How fast the

More information

BUSINESS PROCESSING GIANT TURNS TO HENSON GROUP TO ENHANCE SQL DATA MANAGEMENT SOLUTION

BUSINESS PROCESSING GIANT TURNS TO HENSON GROUP TO ENHANCE SQL DATA MANAGEMENT SOLUTION BUSINESS PROCESSING GIANT TURNS TO HENSON GROUP TO ENHANCE SQL DATA MANAGEMENT SOLUTION Overview Country or Region: United States Industry: Business Processing Customer Profile Cynergy Data provides electronic

More information

ibaby Monitor Model: M3s User Manual

ibaby Monitor Model: M3s User Manual ibaby Monitor Model: M3s User Manual Index 1 Introduction...3 1.1 The package contents...3 1.2 Product Features...3 1.3 Product Specifications...4 2 Appearance and Interface...5 2.1 Appearance...5 2.2

More information

Internet access for home and business. home business internet

Internet access for home and business. home business internet Internet access for home and business home business internet Manx Telecom is the Island s leading Internet Service Provider. We offer a range of Internet access products and services to suit everyone,

More information

First Midterm for ECE374 03/24/11 Solution!!

First Midterm for ECE374 03/24/11 Solution!! 1 First Midterm for ECE374 03/24/11 Solution!! Note: 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 if you show your

More information

Dynamic Content Acceleration: Lightning-Fast Web Apps with Amazon CloudFront and Amazon Route 53

Dynamic Content Acceleration: Lightning-Fast Web Apps with Amazon CloudFront and Amazon Route 53 Dynamic Content Acceleration: Lightning-Fast Web Apps with Amazon CloudFront and Amazon Route 53 Constantin Gonzalez, Solutions Architect Amazon Web Services Germany GmbH 2014 Amazon.com, Inc. and its

More information

Architectures and protocols in Peer-to-Peer networks

Architectures 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 information

ADOBE FLASH PLAYER Local Settings Manager

ADOBE FLASH PLAYER Local Settings Manager ADOBE FLASH PLAYER Local Settings Manager Legal notices Legal notices For legal notices, see http://help.adobe.com/en_us/legalnotices/index.html. iii Contents Storage...............................................................................................................

More information

CS3051 Digital Content Management Lecture: File Transfer and Media Streaming

CS3051 Digital Content Management Lecture: File Transfer and Media Streaming CS3051 Digital Content Management Lecture: File Transfer and Media Streaming Adrian O Riordan, Computer Science, Western Gateway Building, University College Cork, Cork, Ireland File sharing File sharing

More information

Serving Media with NGINX Plus

Serving Media with NGINX Plus Serving Media with NGINX Plus Published June 11, 2015 NGINX, Inc. Table of Contents 3 About NGINX Plus 3 Using this Guide 4 Prerequisites and System Requirements 5 Serving Media with NGINX Plus 9 NGINX

More information

Segmented monitoring of 100Gbps data containing CDN video. Telesoft White Papers

Segmented monitoring of 100Gbps data containing CDN video. Telesoft White Papers Segmented monitoring of 100Gbps data containing CDN video Telesoft White Papers Steve Patton Senior Product Manager 23 rd April 2015 IP Video The Challenge The growth in internet traffic caused by increasing

More information

HIVE STREAMING. Mikael Högqvist Senior Research Engineer 07/05/14 1

HIVE STREAMING. Mikael Högqvist Senior Research Engineer 07/05/14 1 HIVE STREAMING Mikael Högqvist Senior Research Engineer 07/05/14 1 ABOUT PEERIALISM! Founded in 2007 by entrepreneurs and researchers from KTH/SICS! Mix of business people, developers and researchers!

More information

DSL-2600U. User Manual V 1.0

DSL-2600U. User Manual V 1.0 DSL-2600U User Manual V 1.0 CONTENTS 1. OVERVIEW...3 1.1 ABOUT ADSL...3 1.2 ABOUT ADSL2/2+...3 1.3 FEATURES...3 2 SPECIFICATION...4 2.1 INDICATOR AND INTERFACE...4 2.2 HARDWARE CONNECTION...4 2.3 LED STATUS

More information

Lecture 6 Content Distribution and BitTorrent

Lecture 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 information

Component Details Notes Tested. The virtualization host is a windows 2008 R2 Hyper-V server. Yes

Component Details Notes Tested. The virtualization host is a windows 2008 R2 Hyper-V server. Yes We will be reviewing Microsoft s Remote Desktop Services (RDS), which has undergone significant reworking since it was released as Windows 2008 Terminal Services. In the original release of Microsoft Windows

More information

THE BASICS OF LOW-LATENCY OPTIMIZATION FOR TRADERS ED&F MAN CAPITAL MARKETS HOSTING AND INFRASTRUCTURE

THE BASICS OF LOW-LATENCY OPTIMIZATION FOR TRADERS ED&F MAN CAPITAL MARKETS HOSTING AND INFRASTRUCTURE THE BASICS OF LOW-LATENCY OPTIMIZATION FOR TRADERS ED&F MAN CAPITAL MARKETS HOSTING AND INFRASTRUCTURE 01 THIS BRIEF ARTICLE IS INTENDED AS A HIGH-LEVEL OVERVIEW OF SOME FACTORS THAT CAN IMPACT THE TIME

More information