Course Info

Instructor: Prof. Sung-Ju Lee (profsj@kaist.ac.kr, https://nmsl.kaist.ac.kr/sjlee), N1 #706
TAs: Jaemin Shin, Hyunsung Cho, Ryuhaerang Choi, Donghwi Kim, Adiba Orzikulova, Sooyoung Park, HyungJun Yoon
When: Lectures: Mon/Wed 13:00-14:15 Labs: Wed 19:00-20:30
Where: N1, Room 102
Class website: http://networking101.org (or https://nmsl.kaist.ac.kr/courses/cs341)
KLMS page (for online lectures): http://klms.kaist.ac.kr/course/view.php?id=114533
Class email: cs341@nmsl.kaist.ac.kr
Facebook group: https://www.facebook.com/groups/kaist.cs341.2020/
Office hours: By appointment

Class Overview

We use computer networks every day; check emails, browse social network sites, watch videos on smartphones, etc. This course provides fundamental knowledge and principles of how computer networks work. We cover the full networking stack, starting from the applications, including the web and HTTP. We then study the transport protocols, in particular, TCP, and routing algorithms and protocols for the Internet. We investigate how the link layer protocols such as the Ethernet and Wi-Fi handle multiple access. By taking this course, you should be able to answer the questions such as “how does addressing work in the Internet?”, “why is Wi-Fi sometimes slower than LTE?”, “how is my video chat with a friend across the world be in such high quality?”, “how can all IoT devices be connected to the Internet?”, “what network vulnerabilities do hackers exploit?”. The course includes lab sessions that provide you hands-on learning experience of TCP and networking. The course also showcases recent research highlights in networking by showing a few short videos.

Prerequisite

System Programming (CS230 or equivalent). Programming experience at the level of upper class CS undergraduate.

Textbook

Computer Networking: A Top-Down Approach (7th ed.) by Jim Kurose and Keith Ross.

Grading Policy

Exams & Quizzes	40%	No midterm exam; Final exam on June 17, and there is a short quiz at the beginning of each class.
Homework	20%	Homework problems and short essays.
Projects	30%	Network programming on various aspects of protocols, especially TCP/IP using the practice environment KENS that has been developed by KAIST SoC.
Participation	10%	This course would be successful only when it's interactive. Students are highly encouraged to ask questions, present their opinion, and lead discussions.

Announcements

• 3/25 Register your KENS group in this link (https://bit.ly/cs341-group-regist) until March 29th 23:55 PM.
• 3/18 Instructions about making Second Chance video:
  1) You should first be confirmed as a preview presenter from the professor.
  2) Please follow the instructions until Chapter 2 as instructed in this file
  3) Send us the video via the course email (cs341@nmsl.kaist.ac.kr).
• 3/18 Few announcements about this Wednesday's lecture:
  1) The first lab session on Wednesday 7pm will be held live using Zoom!
  2) Wednesday's lecture will be uploaded on YouTube and KLMS.
• 3/16 Welcome to CS341! If you're ready to take this course, please do the following:
  1) Submit this form (http://bit.ly/cs341-register-2020) to get access to course materials
  2) Join our Facebook Group for class discussions

Class Policy

Students are encouraged to interact with classmates, as well as the professor and the TAs, to discuss course material and assignment problems. In all your writing, including homework, essays, reports, and exams, use your own words, and acknowledge the source if you use someone else’s slides, quotes, figures, text, etc. Plagiarism and cheating are serious offenses and will be punished by failure on exams/assignments/course, and suspension or expulsion from the University.