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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
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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 (1981-87)
– 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, 1989-94
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