Computer Networking Chapter A Top-Down Approach Introduction KUROSE ROSS a note on the use of these ppt slides We re making these slides freely available to all(faculty, students, readers) Computer delete slides(including this one)and slide content to suit your needs. They and They re in PowerPoint form so you see the animations and can add, modify Networking: A Top bviously represent a lot of work on our part. In return for use, we only ask the following Down Approach If you use these slides (e.g, in a class) that you mention their source(after all, we d like people to use our book!) th edition . If you post any slides on a www site, that you note that they are adapted from(or im Kurose, Keith ross rhaps identical to)our slides, and note our copyright of this materiaL. Addison-Wesley Thanks and enjoy! JFK/KWR March 2012 All material copyright 1996-2012 F Kurose and K.W. Ross. All Rights Reserved Introduction 1-1
Introduction 1-1 Chapter 1 Introduction Computer Networking: A Top Down Approach 6 th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 A note on the use of these ppt slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a lot of work on our part. In return for use, we only ask the following: ❖ If you use these slides (e.g., in a class) that you mention their source (after all, we’d like people to use our book!) ❖ If you post any slides on a www site, that you note that they are adapted from (or perhaps identical to) our slides, and note our copyright of this material. Thanks and enjoy! JFK/KWR All material copyright 1996-2012 J.F Kurose and K.W. Ross, All Rights Reserved
Chapter 1: Introduction Our goal: a get feel"and terminology a more depth detail later in course approach: ☆ use internet as example Introduction 1-2
Chapter 1: Introduction Our goal: ❑ get “feel” and terminology ❑ more depth, detail later in course ❑ approach: ❖ use Internet as example Introduction 1-2
Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge end systems, access networks, lInks 1.3 Network core a circuit switching, packet switching, network structure 1.4 Delay, loss and throughput in packet-switched networks 1.5 Protocol layers, service models 1.6 Networks under attack securi 1.7 History Introduction 1-3
Introduction 1-3 Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge ❑ end systems, access networks, links 1.3 Network core ❑ circuit switching, packet switching, network structure 1.4 Delay, loss and throughput in packet-switched networks 1.5 Protocol layers, service models 1.6 Networks under attack: security 1.7 History
1.1 What is the internet? 口将从以下两个角度描述因特网是什么 因特网的具体构成 因特网的功能 Introduction 1-4
1.1 What is the Internet? ❑将从以下两个角度描述因特网是什么: ❖因特网的具体构成 ❖因特网的功能 Introduction 1-4
1.1,1因特网的县体构成 桌面机·终端: Mobile network 可服务器 称主机(host)或端系 Global isp 统( end system) 习笔记本 运行应用程序 手持设备 Home network 通信链路: Relgiona) ISP 无线链路·光纤,铜线,电磁波 x 主要指标为传输速率, Institutional network 有线链路也称带宽( bandwidth) 交换设备 路由器 转发分组( packet) 路由器和交换机 概述1-5
概述 1-5 1.1.1 因特网的具体构成 • 终端： • 称 主机（host）或端系 统（ end system） • 运行应用程序 Home network Institutional network Mobile network Global ISP Regional ISP 路由器 桌面机 服务器 笔记本 手持设备 有线链路 无线链路 • 通信链路： • 光纤，铜线，电磁波 • 主要指标为传输速率， 也称带宽(bandwidth) • 交换设备: • 转发分组（packet） • 路由器和交换机