1. Intro. to Computer Network
Tue. 9:10am-12:10pm, CSIE 102
Instructor: Cheng-Fu Chou
Office hours: by appointments
TAs:
陳君豪: gapple970[at] gmail.com Office: 德田館(CSIE Building)R505
李嘉瑋，徐浩翔
Lecture Format:
Slides
Interactive
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2. Class Resources Class web page:
Computer Networks 2018
Includes message archives (send by the instructor or the TA)
Reading list
Proj. assignment & HWs
You should check this site regularly
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3. Course Reading Textbook:
“Computer Networking: A Top Down Approach Featuring the Internet,”7th edition, Jim Kurose and Keith Ross, Addison-Wesley
Reference books:
Computer Networks: A Systems Approach - by Larry Peterson and Bruce Davie, 4th Edition, Morgan Kaufman.
TCP/IP Illustrated volume I and volume II
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4. Important Info. Grading (tentative): :
HW (paper reading and discussion) 20%
projects (I,II, or III) 35%
midterm 20%
final 25%
class participation: 5%
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5. Assignments HW Projects: Late Policy Based on readings and discussions
C/C++ only
Paper reading
Late Policy
TBD: check the class web site
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6. Things to Do Today
Read class web page
Check course description
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7. Student Commitments Keep up with your reading Do your own work
Turn in assignments on times
You are encouraged to study with other students and discuss (no sharing) programming assignments and HWs
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8. Objective
This course will cover the basic principles of networking with a focus on protocols, implementations, and issues specific to the Internet. We will selectively implement new protocols and network services; In addition, we will discuss new ideas and issued published in recent network papers in SDN, 5G/B5G, ….
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9. Contents Computer Networks and Internet Application Layer
Transport Layer
The Network Layer
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10. Contents Wireless and Mobile Networks Multimedia Networking
Security in Computer Networks
Network Management
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11. Question 1
Suppose you are at a workstation with IP address and are running IE. You are click on an URL pointing to (IP addr ). Assume that the web page is available, loaded and displayed by your browser. Describe, in as much details as you can, the steps that occur between the mouse-click and the displaying of the web page.
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12. Ans.
6 messages to translate the server name ( into its IP address
3 messages to set up TCP connections
2 messages for the browser to send HTTP “get” request
2 messages for the server to send back the requested page
4 messages to tear down the TCP connections
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13. Question 2 What are the requirements as you design a computer network

14. Definition of a computer network:
A shared platform through which a large number of users and applications communicate with each other.
Connectivity: who and how to connect?
Scalability: how many to connect?
Resource sharing: how to utilize the connectivity?
Packet switching in datacom
Circuit switching in telecom
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15. Requirements Connectivity Cost-Effective Resource Sharing Scalability
What else?
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16. The End
Questions ?
interested issues, topics
SDN, 5G/B5G,….
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17. 1st HW: paper reading
S. Keshav, “How to read a paper”. SIGCOMM Comput. Commun. Rev., 37(3):83-84, July 2007.
David D. Clark, “The design philosophy of the DARPA internet protocols”. In Proceedings of the Symposium on Communications Architectures and Protocols, pages ACM, August 1988.
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