Review of Networking Basics - University of California, Berkeley

Review of Networking Basics

Yao Wang Polytechnic University, Brooklyn, NY11201

yao@vision.poly.edu

These slides are extracted from the slides made by authors of the book (J. F. Kurose and K. Ross), available from the publisher site for instructors. We would like to thank the authors for the excellent book and the slides.

From [Kurose/Ross]

Networking Basics

Slides based on Computer Networking: A Top Down Approach Featuring the Internet,

2nd edition. Jim Kurose, Keith Ross Addison-Wesley, July 2002. Chapters 1-2

2

Overview of Telecommunication Networks and Internet

Based on Chapter I -- Computer Networks and the Internet

From [Kurose/Ross]

Networking Basics

3

Roadmap

What is the Internet?

Network edge Network core Internet structure and ISPs Protocol layers, service models

From [Kurose/Ross]

Networking Basics

4

What's the Internet: "nuts and bolts" view

millions of connected

computing devices: hosts, end-systems

PCs workstations, servers

PDAs phones, toasters

running network apps

communication links

fiber, copper, radio, satellite

transmission rate =

bandwidth

routers: forward packets

(chunks of data)

router server

local ISP

workstation mobile

regional ISP

company network

From [Kurose/Ross]

Networking Basics

5

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