1. Welcome to IST 220: Networking and Telecommunications

2. Teaching Team Zihan Zhou TA: Lin (Christina) Tu
Ph.D in Electrical and Computer Engineering from UIUC
Research interest: computer vision, machine learning
Office hour: 2:30-3:30pm Monday or by appointment
Office: E367 Westgate Building
TA: Lin (Christina) Tu
Office hour: 10-11am Thursday or by appointment
Location: E301 Westgate Building

3. Course Website Log into your Canvas Go to HomeSchedule
You will see all course information on wikispace

4. What Is This Course About?
???

5. What Is The Course About?
Three “networking” topics
Distributed systems
Networking
Communications
apps
packets
signals
We are in the middle

6. The Main Goals To learn how the Internet works
What really happens when you “browse the web”?
What are TCP/IP, DNS, HTTP, NAT, VPNs, etc. anyway?
acronym

7. Why learn how the Internet works?
Curiosity
Impact on our world
Job prospects!

8. From this experimental network… ARPANET ~1970
(a) Dec 1969
(b) July 1970
(c) March 1971
credit: David Wetherall

9. …To this! Internet – An everyday institution used at work, home, and on-the-go
approximation
(a) Nov 2003
(b) Nov 2010
credit: The Opte Project

10. Internet – Social Impact
An enabler of societal change
Easy access to knowledge
Instant communication
Electronic commerce
Personal relationships
Online education

11. Internet – Economic Impact
An engine of economic growth
Advertising-sponsored search
“Long tail” online stores
Online marketplace
Crowdsourcing
Mobile crowdsourcing
Microwork
Crowdfunding
Discussion: What’s your favorite
Internet application
Crowdsourcing platform?

12. The Main Goals To the learn the fundamentals of computer networks
What hard problems must they solve?
What design strategies have proven valuable?

13. Why learn the fundamentals?
Apply to all computer networks
Intellectual interest
Change / reinvention

14. Intellectual Interest
Think about the Internet as a public transportation system.
State College  Boston
What problems you may encounter during the road trip?

15. Intellectual Interest
Key problems
Example solutions
Reliability despite failures
Codes for error detection/correction
Routing around failures
Network growth and evolution
Addressing and naming
Protocol layering
Allocation of resources
Multiple access
Congestion control
Security
Confidentiality of messages
Authentication of communications
College of Engineering network disabled in response to sophisticated cyberattack
Two-factor authentication to be activated on WebAccess Dec. 3:
credit: David Wetherall

16. Change/Reinvention The Internet is constantly being re-invented!
Growth over time and technology trends drive upheavals in Internet design and usage
Today’s Internet is different from yesterday’s
But the fundamental remains the same
… when you install a wireless router at home

17. How Will This Course Be Taught?
Class time: Monday and Wednesday
Short lectures: key concepts
In-class exercises
Discussion on your answers
Group Research / Lab time: Friday
Group research assignments
Group work together in class on a research topic
Individual Hands-on lab assignments
Virtual labs can also be accessed outside of the class.

18. Information, Technology, and People

19. Technical Part Understand the principles
Theories, standards, designs, etc.
Gain "hand-on" skills through lab assignments

20. People Part
Understand the applications of networks and telecommunications
Impacts on people's life, business, policies, etc.
Group research assignments

21. Readings for Lectures Text Additional readings will be provided.
Computer Networks and Internets
Douglas E. Comer
6th Edition
Additional readings will be provided.
Always check the latest schedule in Canvas
Read the text before class is strongly encouraged!
See course website for a reading list before each class

22. In Class Attendance and participation
Attendance is required for every class!
Random attendance checks
Involvement of class discussions
10% in final grading
If you are not able to attend class with reasonable excuse, instructor or TA should be notified before class

23. After Classes Study groups strongly encouraged
Keep track of up-to-date IT news and events
See how they can be related to this course.
Google News
Slashdot.org

24. Homework Assignments Three homework assignments
Due: one week after an assignment is given
Independent work!
Do not exchange your answers with your classmates!
Do not search for solutions online!

25. Hands-on Lab Assignments
Five hands-on lab assignments
Build, configure, and analyze networks
Specific guidance and questions will be provided
Work individually in Friday’s class

26. Group Research Assignments
Work in group on a topic assigned by the instructor as well as your favorite topic (approved by the instructor)
3-4 people per group.
You can choose whom to work with.

27. Submit Your Assignments
Specific submission guidelines will be given for each assignment
Most assignments will be submitted online through Canvas
Strict late submission penalty
After the deadline but less than 24 hours: 10% penalty
More than 24 hours but less than hours late: 30% penalty
No submission are accepted more than 48 hours late

28. Exams Two in-class midterm exams. One final exam
Week 5 and Week 10
One final exam
All exams are non-cumulative

29. Grading Three (3) homework assignments: 15%
Five (5) Hands-on lab assignments: 20%
Group research assignments: 20%
Two (2) midterm exams: 20%
Final exam: 15%
Class attendance and participation: 10%

30. To Succeed in This Course
Study hard
We are coaches. You are on the driving seat.

31. To Succeed in This Course (Cont.)
Study wisely
Learn from various resources
Classes, readings, online news, peers, …
MOOC courses
mooc-list.com
Apply what you have learnt in real life
Manage your time well

32. Communicate with the teaching team
Check course website frequently for
Latest update
Announcements
Please let us know if you have any question or concern.
, office hours
No such thing as a stupid question
Come to see us in office hours.
You don’t have to have a specific question.

33. Wednesday’s class Introduction and overview
Reading before class: Chapter 1

34. Now
Know each other and form groups
TA your group roster