L4: ISPs, Backbones and Peering
|
|
- Lucinda Ball
- 8 years ago
- Views:
Transcription
1 L4: ISPs, Backbones and Peering 15 September 2015 (From Kobe) Bill Nace Material from Computer Networking: A Top Down Approach, 5 th edition. J.F. Kurose and K.W. Ross
2 Administrivia Norton2010 Paper Review for today Lab0 should be posted soon Due 24 Sep 2
3 Last Lecture Internet TCP/IP architecture Layering not strictly enforced Hourglass -- IP ueber alles Allows rapid innovation at layers below Flexible applications / services above IETF process Rough consensus and running code End-to-end argument Does it still apply? 3
4 traceroute ISPs and Backbones Peering and Settlements Peering Evolution Interconnections 4
5 Backbones In the beginning... of Internet time Single backbone: NSFNet Everyone on the Internet was on NSFNet A backbone network enables all connected end-hosts (users and companies) to communicate with each other No interconnection problems 5
6 Backbones (2) Commercial backbone providers emerged Technology transfer! A Good Thing If US Government was managing the Internet, might not be so successful We all expect universal Internet connectivity 6
7 A Packet s Journey Packets travel across many networks Particular protocols will be studied later This lecture motivates why routing mechanics are necessary CMU Pgh A B G PennRen Little ISP C H Some NW Huge ISP D Tier 1 ISP F Cheap ISP Tier 1 ISP Tier 1 ISP Some ISP : Fall 2014 E J CMU Kobe 7
8 CMU s Infrastructure Two 10 Gigabit Ethernet links (singlemode fiber) to Pittsburgh Supercomputer Center From Cisco 6500s located in Cyert and Stever House Redundancy links to PennRen / Level3 over 1Gbps rate-limited 10 Gigabit Ethernet PennRen 1Gbps/10Gbps External Internal PSC Internet2 10Gbps 10Gbps Level3 Comodity Internet 1Gbps Money $40K per year to PennRen A PA state education network $100K to PSC, $100K to Level3 $300K per year on fiber leases CMU Internal
9 Interfaces: Transit Transit / provider-customer ISP sells access to another ISP or company e.g. GE buys transit (or access to Internet) from Verizon 9
10 Interfaces: Peering Reciprocal access to each other s customers Usually free exchange of traffic DO NOT serve as transit for 3rd party data E.g. Google and MSN peer with each other, so messages between Gmail and Hotmail are transferred directly, without going through their transit providers These relationships are confidential business secrets Roughly hierarchical, though the topology is flattening 10
11 Tier 1 ISP Internet backbone providers Peers with every other Tier-1 in Internet Region Who is a major ISP in your country? US? Japan? India? Careful: Tier-1 is an overloaded and misleading term : Fall
12 Images courtesy of Level-3
13 >4200 networks in 142 nations, many at OC-768 speeds Images courtesy of Verizon
14 Tata: "Discover the World's Largest Global Footprint" Image courtesy of tatacommunications.com/network
15 Typical Infrastructure High speed links Level3 operates 10Gbps (OC-192) IP backbone Installing 40Gbps DWDM networks High performance routers Over-provisioned bandwidth 40 ms delay within region <1% packet loss Global presence (or at least multi-continent) 15
16 Typical Tier-1 Relationships Directly connected to other Tier-1 ISPs (i.e. peer with) Connected to a large number of Tier-2 ISPs Vertically integrated: sell services directly to customers International in coverage Ecosystem: do not buy transit from another provider in order to reach the whole Internet 16
17 Why do Tier-1 ISPs need to peer with each other? No single Tier-1 ISP can reach the whole Internet on its own Internet is a network of networks But Tier-1 ISPs have a restrictive peering policy Do not peer with other non-tier-1 ISPs They are potential revenue generating customers No incentive to accept additional peers : Fall
18 What is a Tier-2 ISP? Network infrastructure is usually regional Customer of Tier-1 ISP(s) needs to buy transit Provider of customers also re-sells this transit Peers with other Tier-2 ISPs settlement free Tier-2 ISP pays Tier-1 for connectivity to rest of internet Multi-connection relationships possible Tier-2 ISP Tier 1 ISP Tier 1 ISP IXP Tier-2 ISP Tier 1 ISP Tier-2 ISP Tier-2 ISP Tier-2 ISPs also peer privately. Interconnection can be direct or via IXP 18
19 Thinking time Why do Tier-2 ISPs need to buy transit from a Tier-1 provider? : Fall
20 Thinking time Why do Tier-2 ISPs peer with each other? : Fall
21 Open Peering Policy Tier-2 ISPs have an open peering policy Peer with anyone possible Costs of peering have to be balanced against gains for a Tier-2 ISP Management cost: usually settlement-free peering means both parties should send approx equal amounts of traffic to each other Maintenance cost: extra equipment, transmission capacity to meeting point, exchange and other fees 21
22 Content Providers Do not sell transit Category A: Focus on content creation Do not want to operate a network Do not have expertise in maintaining peering relationships router, policy, negotiations, No Peering Policy Category B: Sophisticated, large-scale players Use peering to improve user experience Open Peering Policy 22
23 Peering Ecosystem Internet Region Full Mesh Peering Tier 1 ISPs Transit Free Partial Mesh Peering Tier 2 ISPs Must Buy Transit Generally No Peering Content / Enterprise Companies Must Buy Transit Things are never so clear-cut...
24 traceroute ISPs and Backbones Peering and Settlements Peering Evolution Interconnections 24
25 US Evolution 1999/2000 economic collapse Telecom sector Need to rethink their business model Need to cut costs General dotcom bust Lots of cheap equipment on ebay Transit rates drop Upstream for cable companies went bankrupt Peer-to-peer file sharing grows exponentially in popularity 25
26 Transit Prices are Falling Price per Mbs 63% per year decline Luckily, volume is increasing even more Somewhat bad for Tier-1 ISPs 26
27 Cable Companies are Peering The P2P effect Residential cable modem users About 40%-75% of traffic is P2P and destined for other cable companies or other access heavy ISPs Peering allows cable companies to offload this traffic from transit connections Good for cable companies (save money) Bad for Tier-1 ISPs 27
28 Content Companies are Peering Network savvy, large scale enterprises MSN, Yahoo, Google, Ebay, Walmart, Yahoo has an open peering policy Reduce transit costs Improve end-user experience Good for content companies Bad for Tier-1 ISPs 28
29 Cable Companies Peer with Content Companies Send traffic directly from content providers to cable modem users Reduce transit costs Bad for Tier-1 ISPs Improve performance Can you predict another major disruption in the Peering Ecosystem? Tier 2 ISPs Tier-1 ISPs Cable Companies Content Producers LSNSC
30 traceroute ISPs and Backbones Peering and Settlements Peering Evolution Interconnections 30
31 Interconnection How do two networks interconnect with each other? We are talking about routers in two different companies, under separate administrative control 31
32 Public Peering U.S. government decided to let commercial companies take over management of the backbone networks 1991: Commercial Internet Exchange (CIX) 1 router in Santa Clara, CA 1995: Network Access Points (NAPs) in SF, Chicago, NY, D.C. More recent: Internet Exchange Point (IXP) 30 in US, 6 in Japan More is good because of congestion, at one point 20% of traffic going through the 1st NAP was dropped! 32
33 ISP Connections Tier-1 providers interconnect privately (Peer) Tier 1 ISP Tier 1 ISP Tier 1 ISP IXP (Meet-me room) Tier 1 ISP Tier-1 providers also interconnect at Internet Exchange Points (IXP) (30 in US)
34 Private Peering Two networks bypass IXPs and directly peer In response to congestion at some IXPs Business reasons Also more cost-effective There are limited number of IXPs at major regions Can privately peer in other locations Sometimes take a hybrid approach Public exchange for some peers Private meeting point for others 34
35 Provider-customer Interconnection Point-of-presence (PoP) Customer typically leases a high-speed link from a 3rd party telecomm provider Directly connects a router at a provider s PoP 35
36 Various Methods How do two networks interconnect with each other? Many methods: Public Peering, Private Peering, Provider-customer PoP There are really no industry-specific regulations, mostly purely driven by commercial and economic forces 36
37 Summary Hierarchy of ISPs (Tier-1, Tier-2, Content Provider) Peering lets ISPs avoid paying for transit Public peering happens at IPX Private peering also exists 37
The Emerging 21 st Century Access Power Peering (*)
The Emerging 21 st Century Access Power Peering (*) William B. NORTON DrPeering International, Palo Alto, CA USA Abstract: From the beginning of the Internet as a government-funded network of networks
More informationOverview of recent changes in the IP interconnection ecosystem
Presentation for Broadband for America Overview of recent changes in the IP interconnection ecosystem Michael Kende June 7 th, 2011 Ref: Introduction 2 Last year marked the 15 th anniversary of the commercialization
More informationR2. The word protocol is often used to describe diplomatic relations. How does Wikipedia describe diplomatic protocol?
Chapter 1 Review Questions R1. What is the difference between a host and an end system? List several different types of end systems. Is a Web server an end system? 1. There is no difference. Throughout
More informationCSCI 491-01 Topics: Internet Programming Fall 2008
CSCI 491-01 Topics: Internet Programming Fall 2008 Introduction Derek Leonard Hendrix College September 3, 2008 Original slides copyright 1996-2007 J.F Kurose and K.W. Ross 1 Chapter 1: Introduction Our
More informationThe Evolution of the U.S. Internet Peering Ecosystem
The Evolution of the U.S. Internet Peering Ecosystem William B. Norton Co-Founder and Chief Technical Liaison Equinix, Inc. NANOG 31 San Francisco, CA Peer Trek Internet Operations Research Research 5
More informationIP interconnection issues
Regulatory and policy challenges of next-generation access IP interconnection issues 6 November 0 Michael Kende Introduction Last year marked the 5th anniversary of the commercialisation of the Internet
More informationCSE 3214: Computer Network Protocols and Applications
CSE 3214: Computer Network Protocols and Applications 1 Course Web-Page: Instructor: http://www.eecs.yorku.ca/course/3214/ (all lecture notes will be posted on this page) Natalija Vlajic (vlajic@cse.yorku.ca)
More informationCPET 581 E-Commerce & Business Technologies. Topics
CPET 581 E-Commerce & Business Technologies E-Commerce Infrastructure Lecture Note 2 of 2 References: *Chapter 3. E-Commerce Infrastructure: The Internet, Web, and Mobile Platform of text book: e-commerce:
More informationIT-5302-3 Internet Architecture and Protocols. Lecture 02 Overview of Internet Architecture
IT-5302-3 Internet Architecture and Protocols Punjab University College of Information Technology, University of the Punjab, Pakistan. Lecture 02 Overview of Internet Architecture Lecture 02 - Roadmap
More informationNetworks 2. Gabriela Ochoa. 2014 University of Stirling CSCU9B1 Essential Skills for the Information Age. Content
Networks 2 Gabriela Ochoa Lecture Networks 2/Slide 1 Content How is Internet connected? Internet backbone Internet service providers (ISP) How to connect a home computer to the Internet? How do networks
More informationComputer 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 informationCHAPTER 10 THE INTERNET
CHAPTER 10 THE INTERNET Chapter Summary This chapter examines the Internet in more detail to explain how it works and why it is a network of networks. The chapter also examines Internet access technologies,
More informationTopic 1: Internet Architecture & Addressing
Topic 1: Internet Architecture & Addressing Objectives Understand the general architecture of Internet Identify the main actors in the Internet architecture Identify the main organizations implied in Internet
More informationInterconnection and its Discontents
Interconnection and its Discontents Jon M. Peha Carnegie Mellon University www.ece.cmu.edu/~peha PPI, May 2014 1 Internet is a Network of Networks Internet consists of over 66,000 autonomous networks*
More informationThe Internet and Its Uses
CHAPTER 1 The Internet and Its Uses Objectives After completing this chapter, you should be able to answer the following questions: How is the Internet evolving? How do businesses and individuals use the
More informationChapter 9. Internet. Copyright 2011 John Wiley & Sons, Inc 10-1
Chapter 9 Internet Copyright 2011 John Wiley & Sons, Inc 10-1 Outline 9.2 - How the Internet Works - Basic Architecture - Connecting to an ISP - Internet Today 9.3 - Internet Access Technologies - DSL
More informationThe Role IXPs and Peering Play in the Evolution of the Internet
The Role IXPs and Peering Play in the Evolution of the Internet PTC 14, New World, New Strategies, 19-22 January 2014 Steve Wilcox, President and CTO, IX Reach A Quick Introduction Steve Wilcox founded
More informationwww.careercert.info Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
2007 Cisco Systems, Inc. All rights reserved. DESGN v2.0 3-11 Enterprise Campus and Data Center Design Review Analyze organizational requirements: Type of applications, traffic volume, and traffic pattern
More informationCS 40, Lecture 3: Internet economics. Ramesh Johari
CS 40, Lecture 3: Internet economics Ramesh Johari Outline Contracts: transit and peer Example 1: Peering and pricing Example 2: Exchanges Example 3: Hot potato routing Example 4: 95 th percentile pricing
More informationToday. Finishing up inter-domain routing. Review of end-to-end forwarding. How we build routers. Economics of peering/settlement
Today Finishing up inter-domain routing Economics of peering/settlement Review of end-to-end forwarding How we build routers 1 A History of Settlement The telephone world LECs (local exchange carriers)
More informationKick starting science...
Computer ing (TDDD63): Part 1 Kick starting science... Niklas Carlsson, Associate Professor http://www.ida.liu.se/~nikca/ What do you have in the future? What do you have in the future? How does it keep
More information8/29/2013. Lennart Johnsson 2013 08 29 COSC4377 COSC4377. Lecture 2. Lennart Johnsson 2013 08 29 COSC4377. Assignment 0 demo
Lecture 2 Assignment 0 demo 1 Chapter 1: Roadmap 1.1 what is the Inter? 1.2 work edge end systems, works, links 1.3 work core Inter structure, packet switching, circuit switching 1.4 delay, loss, throughput
More informationCCNA Discovery Chapter Four
CCNA Discovery Chapter Four By Chief Eng. Amna Ahmed Institute of Telecommunication amna_ahmed28@yahoo.com Modified by Vincenzo Bruno Hacklab Cosenza Chapter 4 Explain what the internet is Every day millions
More informationTCIPG Reading Group. Introduction to Computer Networks. Introduction 1-1
TCIPG Reading Group Introduction to Computer Networks Based on: Computer Networking: A Top Down Approach, 4 th edition. Jim Kurose, Keith Ross Addison- Wesley, July 2007. Introduction 1-1 Chapter 1: Introduction
More informationInternet Ecosystem. Staffan Göjeryd Vice President Product Management, Head of Operators TeliaSonera Broadband Services
Internet Ecosystem Staffan Göjeryd Vice President Product Management, Head of Operators TeliaSonera Broadband Services Explaining the Internet Ecosystem How is the Internet wired? Is Content King? Hot
More informationECE/CS 372 introduction to computer networks. Lecture 2. Midterm scheduled for Tuesday, May 7 th
ECE/CS 372 introduction to computer networks Lecture 2 Announcements: Please make sure to check the course s website on a regular basis http://web.engr.oregonstate.edu/~sinkyha/cs372 Midterm scheduled
More informationNetwork Edge and Network Core
Computer Networks Network Edge and Network Core Based on Computer Networking, 4 th Edition by Kurose and Ross What s s the Internet: Nuts and Bolts View PC server wireless laptop cellular handheld access
More informationWorkshop on Infrastructure Security and Operational Challenges of Service Provider Networks
Workshop on Infrastructure Security and Operational Challenges of Service Provider Networks Farnam Jahanian University of Michigan and Arbor Networks IFIP Working Group 10.4 June 29-30, 2006 What s the
More informationTraffic delivery evolution in the Internet ENOG 4 Moscow 23 rd October 2012
Traffic delivery evolution in the Internet ENOG 4 Moscow 23 rd October 2012 January 29th, 2008 Christian Kaufmann Director Network Architecture Akamai Technologies, Inc. way-back machine Web 1998 way-back
More informationIntroduction. Abusayeed Saifullah. CS 5600 Computer Networks. These slides are adapted from Kurose and Ross
Introduction Abusayeed Saifullah CS 5600 Computer Networks These slides are adapted from Kurose and Ross Roadmap 1.1 what is the Inter? 1.2 work edge end systems, works, links 1.3 work core packet switching,
More informationInternet and IP addressing
Internet and IP addressing Richard T. B. Ma School of Computing National University of Singapore CS 3103: Compute Networks and Protocols Communication Network Taxonomy Telephony Network parses number dialed
More informationWhat s a protocol? What s a protocol? A closer look at network structure: What s the Internet? What s the Internet? What s the Internet?
What s the Internet? PC server laptop cellular handheld access points wired s connected computing devices: hosts = end systems running apps communication s fiber, copper, radio transmission rate = bandwidth
More informationIntroduction Chapter 1. Uses of Computer Networks
Introduction Chapter 1 Uses of Computer Networks Network Hardware Network Software Reference Models Example Networks Network Standardization Metric Units Revised: August 2011 Uses of Computer Networks
More informationChapter 7: Computer Networks, the Internet, and the World Wide Web. Invitation to Computer Science, C++ Version, Third Edition
Chapter 7: Computer Networks, the Internet, and the World Wide Web Invitation to Computer Science, C++ Version, Third Edition Objectives In this chapter, you will learn about: Basic networking concepts
More informationAccess Power Peering
Access Power Peering A historical perspective on The Evolution of the Internet Peering Ecosystem William B. Norton Executive Director DrPeering International The 2 nd Workshop on Internet Economics (WIE
More informationIntelligent Routing Platform White Paper
White Paper Table of Contents 1. Executive Summary...3 2. The Challenge of a Multi-Homed Environment...4 3. Network Congestion and Blackouts...4 4. Intelligent Routing Platform...5 4.1 How It Works...5
More informationIntroduction to The Internet. ISP/IXP Workshops
Introduction to The Internet ISP/IXP Workshops 1 Introduction to the Internet Topologies and Definitions IP Addressing Internet Hierarchy Gluing it all together 2 Topologies and Definitions What does all
More informationWORKSHOP: STARTING AN IXP
WORKSHOP: STARTING AN IXP Part I: The IXP Business Daniele Arena, CASPUR RIPE Regional Meeting, Dubrovnik (HR) 08/09/2011 The topics We will not deal with the technical issues See Part II of this workshop
More informationGlobal IP Network Overview
Global IP Network Overview NTT Communications NTT Europe Julian Curtis About NTT: Industry Leadership World s IT and Telecom Service Companies by Credit Rating and Revenue high Stability AA A BBB BB AA+
More informationIntroduction cont. Some Structure in the Chaos. Packet switching versus circuit switching. Access networks and physical media
Introduction cont. Some Structure in the Chaos Lecture goal: get context, overview, feel of ing more depth, detail later in course approach: o descriptive o use Internet as example Overview: access net,
More informationIntroduction to computer networks and Cloud Computing
Introduction to computer networks and Cloud Computing Aniel Nieves-González Fall 2015 Computer Netwoks A computer network is a set of independent computer systems that are connected by a communication
More informationHow To Improve Interconnection
the Internet is for everyone An Introduction to Internet Interconnection Concepts and Actors Briefing Paper An Introduction to Internet Interconnection Concepts and Actors Introduction The Internet is
More informationDE-CIX Premium Internet Exchange Services
DE-CIX Premium Internet Exchange Services DE-CIX Internet exchange points 2 DE-CIX» operates Internet exchanges (IXs or IXPs) in in various metro markets in Europe, the Middle East and North America» provides
More informationTime Warner Cable Business Class Product Overview. Matt Ellison VAR Channel Manager matthew.ellison@twcable.com
Time Warner Cable Business Class Product Overview Matt Ellison VAR Channel Manager matthew.ellison@twcable.com Our National Footprint and Network Time Warner Cable Proprietary and Confidential 2 Why Time
More informationThe Evolution of Ethernet
June 2010 White Paper The Evolution of Ethernet How Ethernet solutions, such as NTT America s VLink, can help businesses reduce private networking costs while leveraging Ethernet technology. Introduction
More informationComputer Networking Networks
Page 1 of 8 Computer Networking Networks 9.1 Local area network A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as a home, school, office
More informationInternet Routing. Review of Networking Principles
Internet Routing Review of Networking Principles 1 Principles of the Internet Edge vs. core (end-systems vs. routers) Dumb Intelligence at the end-systems Different communication paradigms Connection oriented
More informationChapter 1 Reading Organizer
Chapter 1 Reading Organizer After completion of this chapter, you should be able to: Describe convergence of data, voice and video in the context of switched networks Describe a switched network in a small
More informationTransformation of the Enterprise Network Using Passive Optical LAN
WHITE PAPER Transformation of the Enterprise Network Using Passive Optical LAN Passive Optical LAN Study Completed by Network Strategy Partners, LLC Contents Executive Summary... 3 Introduction... 4 Modeling
More informationPLANEAMENTO E GESTÃO DE REDES INFORMÁTICAS COMPUTER NETWORKS PLANNING AND MANAGEMENT 2008-2009
Mestrado em Engenharia Informática e de Computadores PLANEAMENTO E GESTÃO DE REDES INFORMÁTICAS COMPUTER NETWORKS PLANNING AND MANAGEMENT 2008-2009 Conceitos de Redes e Arquitecturas - Networks and Architectures
More informationHow To Build A Network For Storage Area Network (San)
White Paper Data Storage across the MAN by deploying a SAN over Dark Fiber by Pieter Panis, EuroFiber 1/7 1 Introduction The purpose of this document is to illustrate how a storage area network (SAN) can
More informationThe Internet. Internet Technologies and Applications
The Internet Internet Technologies and Applications Aim and Contents Aim: Review the main concepts and technologies used in the Internet Describe the real structure of the Internet today Contents: Internetworking
More informationIntroductions to ISP Design Fundamentals
Introductions to ISP Design Fundamentals Presentation_ID 1999, Cisco Systems, Inc. 1 Agenda Rational Behind ISP Network Design Point of Presence Topologies Adding Services to the Architecture Impact of
More informationUnderstanding Large Internet Service Provider Backbone Networks
Understanding Large Internet Service Provider Backbone Networks Joel M. Gottlieb IP Network Management & Performance Department AT&T Labs Research Florham Park, New Jersey joel@research.att.com Purpose
More informationWhat s New and What s Next in Cable Wholesale? Monday, March 17, 2014 10:15-11 a.m.
What s New and What s Next in Cable Wholesale? Monday, March 17, 2014 10:15-11 a.m. Moderator: Sean Buckley, Senior Editor, FierceTelecom Speakers: Jeremy Bye, Vice President, Cox Business Carrier and
More informationAn Evaluation of Peering and Traffic Engineering in the Pan- African Research and Education Network
An Evaluation of Peering and Traffic Engineering in the Pan- African Research and Education Network *Clifford Sibanda (National University of Science and Technology- Bulawayo) *Josiah Chavula (Mzuzu University
More informationIntroduction to The Internet
Introduction to The Internet ISP Workshops Last updated 5 September 2014 1 Introduction to the Internet p Topologies and Definitions p IP Addressing p Internet Hierarchy p Gluing it all together 2 Topologies
More informationInternet Service Providers: Peering and Charging
Internet Service Providers: Peering and Charging UZH HS14 Seminar Internet Economics Markus Cadonau, Sofia Orlova Overview ISP Relationships Internet Hierarchy Peering: Potential and Process Challenges
More informationFrame Relay vs. IP VPNs
Contents: The Case for Frame Relay The Case for IP VPNs Conclusion Frame Relay vs. IP VPNs 2002 Contents: Table of Contents Introduction 2 Definition of Terms 2 Virtual Privacy and 3 the Value of Shared
More informationInternet Dagarna 2000
Internet Dagarna 2000 October 24th 2000 2000, Cisco Systems, Inc. 1 Dennis Davidsson Director Market Development Public Carrier IP Group 2 What s Driving the Demand? 3 How How How Many Many Many of of
More informationLINX History. ISP Workshops
LINX History ISP Workshops Background p Slide set based on experiences of one founding participant of LINX p Covers history of LINX during the 90s n More recent history covered well on the LINX website
More informationExecutive Summary. Geographic Coverage
Executive Summary Data networks are an increasingly critical component of international enterprises and customers are moving towards next generation services that better suit their evolving application
More informationThe Internet Introductory material.
The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its history and growth, and standardization and naming.
More informationThe Century of Infinite Bandwidth. Simon C. Lin Computing Centre, Academia Sinica Taipei, Taiwan January 2001 sclin@sinica.edu.tw
The Century of Infinite Bandwidth Simon C. Lin Computing Centre, Academia Sinica Taipei, Taiwan January 2001 sclin@sinica.edu.tw Popular View of Internet Global Internet Traffic grows 10% to 12% per month
More information10 reasons why. eircom net is. Ireland s Premier Business Internet Service Provider
10 reasons why eircom net is Ireland s Premier Business Internet Service Provider 1. Ireland s only Internet Service Provider that has 3 gateways to access the Internet, giving you peace of mind and unmatched
More informationHow the 'Net works: an introduction to peering and transit
http://arstechnica.com/old/content/2008/09/peering-and-transit.ars/1 How the 'Net works: an introduction to peering and transit By Rudolph van der Berg Published September 2, 2008 12:11 PM Whose pipes?
More informationNOTES ON INTERNET ECONOMICS AND MARKET STRUCTURE
NOTES ON INTERNET ECONOMICS AND MARKET STRUCTURE Robert S. Pindyck Revised: August 2014 These notes provide a brief overview of the economic structure of the Internet. Just as our system of highways, roads,
More informationINTERNET ORGANIZATION OVERVIEW OF THE INTERNET'S ORGANIZATION AND MAIN STANDARD BODIES. Internet Organization. Peter R. Egli INDIGOO.COM. indigoo.
INTERNET ORGANIZATION OVERVIEW OF THE INTERNET'S ORGANIZATION AND MAIN STANDARD BODIES Peter R. Egli INDIGOO.COM 1/17 Contents 1. Internet Organizations 2. Why the Internet is called Inter-Net 3. Internet
More informationGood VoIP vs. Bad VoIP
Good VoIP vs. Bad VoIP The term Voice over IP, or VoIP has been thrown around in a lot of different cirlces around the telecom industry. There seems to be growing confusion about what it is, whether or
More informationOverview: Internet vs Data Center Networks
Overview: Inter vs Data Center Networks Hakim Weatherspoon Assistant Professor, Dept of Computer Science CS 5413: High Performance Systems and Networking August 29, 2014 Overview What is the Inter? Goals
More informationChapter 4 Connecting to the Internet through an ISP
Chapter 4 Connecting to the Internet through an ISP 1. According to Cisco what two things are essential to gaining access to the internet? a. ISPs are essential to gaining access to the Internet. b. No
More informationManagement Information Systems
Management Information Systems Basics of the Internet Dr. Shankar Sundaresan (Adapted from Introduction to IS, Rainer and Turban) Internet Basics Outline Internet History Internet Structure Switching Methods
More informationInternet Traffic Measurement
Internet Traffic Measurement Internet Traffic Measurement Network Monitor Placement Measurement Analysis Tools Measurement Result Reporting Probing Mechanism Vantage Points Edge vs Core Hardware vs Software
More informationBuild yourself an ISP
Ouch what just bit me? So you ve been bitten by the Internet bug and want to dive into the world wide web by becoming what is called an Internet Service Provider (ISP). The good news is that it is actually
More informationBroadband metrics & Internet service
Broadband metrics & Internet service This short paper introduces a definition of Internet service and motivates the adoption of this definition as a precursor to developing standardized measurement methodologies
More informationMasterkurs Rechnernetze IN2097
Masterkurs Rechnernetze IN2097 Advanced computer networking Internet Protocols Prof. Dr.-Ing. Georg Carle, Wolfgang Mühlbauer Chair for Network Architectures and Services Computer Science Department Technical
More informationSprint s Partner Interexchange Network (PIN) A New Approach to Scalable Voice Peering
Sprint s Partner Interexchange Network (PIN) A New Approach to Scalable Voice Peering Sprint Wholesale White Paper October, 2009 Executive Overview has caused Sprint to develop a a larger community of
More informationPlaneamento e Gestão de Redes. Análise de Requisitos
Planeamento 1 Planeamento e Gestão de Redes Análise de Requisitos Manuel P. Ricardo Faculdade de Engenharia da Universidade do Porto Planeamento 2 Book Top-Down Network Design, Second Edition Priscilla
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 informationState of Texas. TEX-AN Next Generation. NNI Plan
State of Texas TEX-AN Next Generation NNI Plan Table of Contents 1. INTRODUCTION... 1 1.1. Purpose... 1 2. NNI APPROACH... 2 2.1. Proposed Interconnection Capacity... 2 2.2. Collocation Equipment Requirements...
More informationToday s Class. Kinds of Networks. What s a Network? Normal Distribution. Properties of Networks. What are networks Properties of networks
Today s Class NBA 600 Networks and the Internet Class 3, Mon 10/22 Prof. Dan Huttenlocher What are networks Properties of networks Attributes of individuals in a network Very different from those of individuals
More informationCommercial considerations in IP interconnection agreements
Commercial considerations in IP interconnection agreements March 2014 A review of the key commercial issues determining how interconnection agreements will be settled in practice Agenda The IP Interconnection
More informationThis course has been retired. View the schedule of current <a href=http://www.ptr.co.uk/networkingcourses.htm>networking
Introduction to Data Communications & Networking Course Description: This course has been retired. View the schedule of current networking Courses
More informationThe Value of Peering. ISP/IXP Workshops
The Value of Peering ISP/IXP Workshops 1 The Internet Internet is made up of ISPs of all shapes and sizes Some have local coverage (access providers) Others can provide regional or per country coverage
More information@Home Cable Deployment Experiences or
@Home Cable Deployment Experiences or My years without sleep. Presented by Cathy Wittbrodt @Home Network Routing Diva Jan 1996-Mar 2000 What this presentation is A look at some of the technical and other
More informationRedundancy & the Netnod Internet Exchange Points
Redundancy & the Netnod Internet Exchange Points The extent to which businesses and consumers use the Internet for critical communication has been recognised for over a decade. Since the rise of the commercial
More informationLocal Area Networks (LANs) Blueprint (May 2012 Release)
Local Area Networks (LANs) The CCNT Local Area Networks (LANs) Course April 2012 release blueprint lists the following information. Courseware Availability Date identifies the availability date for the
More informationInterconnection and Traffic Exchange on the Internet
Interconnection and Traffic Exchange on the Internet A BROADBAND INTERNET TECHNICAL ADVISORY GROUP TECHNICAL WORKING GROUP REPORT A Uniform Agreement Report Issued: November 2014 Copyright / Legal Notice
More information2014 Annual Report Company Overview
2014 Annual Report Company Overview Headquartered in Southfield, Michigan, 123Net has been successfully providing premium voice, transport, colocation, and wireless services to Michigan businesses since
More informationTeridion. Rethinking Network Performance. The Internet. Lightning Fast. Technical White Paper July, 2015 www.teridion.com
Teridion The Internet. Lightning Fast. Rethinking Network Performance Technical White Paper July, 2015 www.teridion.com Executive summary Online services face the growing dual challenge of supporting many
More informationChapter 3. Enterprise Campus Network Design
Chapter 3 Enterprise Campus Network Design 1 Overview The network foundation hosting these technologies for an emerging enterprise should be efficient, highly available, scalable, and manageable. This
More informationWHITEPAPER MPLS: Key Factors to Consider When Selecting Your MPLS Provider
WHITEPAPER MPLS: Key Factors to Consider When Selecting Your MPLS Provider INTRODUCTION Multiprotocol Label Switching (MPLS), once the sole domain of major corporations and telecom carriers, has gone mainstream
More informationNon-blocking Switching in the Cloud Computing Era
Non-blocking Switching in the Cloud Computing Era Contents 1 Foreword... 3 2 Networks Must Go With the Flow in the Cloud Computing Era... 3 3 Fat-tree Architecture Achieves a Non-blocking Data Center Network...
More informationInternet structure: network of networks
Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge 1.3 Network core 1.4 Network access and physical media 1.5 Internet structure and s 1.6 Delay & loss in packet-switched networks 1.7 Protocol
More information8/27/2014. What is a computer network? Introduction. Business Applications (1) Uses of Computer Networks. Business Applications (2)
What is a computer network? Introduction Chapter 1 A number of separate but interconnected computers A collection of autonomous computers interconnected by a single technology COURSE FOCUS: design and
More informationOptical interconnection networks for data centers
Optical interconnection networks for data centers The 17th International Conference on Optical Network Design and Modeling Brest, France, April 2013 Christoforos Kachris and Ioannis Tomkos Athens Information
More informationLocal-Area Network -LAN
Computer Networks A group of two or more computer systems linked together. There are many [types] of computer networks: Peer To Peer (workgroups) The computers are connected by a network, however, there
More information