Introduction to Computer Networks Professor Jun Murai, Keio U. Professor Larry Landweber, U. of Wisc Fall 1999

The U.S. Cast U.W. Technical Support –Jim Gast - CS grad student –Sam Etler - undergrad, CS Dept. Lab –Bill Jensen - Div. of Information Tech –David Parter - CS Dept Lab –Haru Toyabe - Keio student on loan U.W. Teaching Assistants –Xaiohua Lu - CS grad student –Constantinos Dovrolis - ECE gr ad student Linda Winkler - Argonne Nat Lab Doug Pearson - Indiana

Larry Landweber Professor of CS, University of Wisconsin Worked on Internet since 1979 Led CSNET project ( ) –first large-scale test of Internet technology –200 university / industry CS departments (IBM) –first Internet connections to many countries including Japan advisor - NSFNET, first Internet backbone, 1986 Gigabit project, 600Mbps testbed,

History of this Project Discussion at WIDE 10th anniversary celebration, Oct 1998 Two parallel projects for archiving –Keio - School of Internet –Wisconsin - Learning on Demand WIDE digital video over Internet project Plus Internet 2 project leading to available capacity

The Future The Internet: A Global Information Infrastructure offering a universal, homogeneous, communications environment The world of information and services accessible from homes, offices, cars, beaches Revolution in education, commerce, finance, medicine, entertainment, communication Applications such as tele-immersion will change how we communicate and work with each other

The Internet is changing the world… it will impact all areas of our lives… and the final impact is not predictable at this time!!

This Course Technical and experimental aspects of computer networks; will not address policy, economic, social, international issues Goal: A deep understanding of important network concepts, technologies and protocols, their design and implementation Most graduates work for technology companies including a growing number who go to startup companies

Overview of Study Topics Physical layer - DSL Link layer - flow and error control, X.25 Level 2 (LapB), local area networks (802.x) Network layer - routing, quality of service, multicasting, IPv4-v6, ICMP, ATM, BGP4, OSPF Transport layer - congestion handling, TCP, UDP, TP4