Introduction to Computer Networks (Online)

Fall 2023

Steps to get on the wait list (if you fail to get the course via course pre-registration):
1. Fill this Google Form (full).
-- Incomplete entries (missing information or partial transcript) will not be considered.
-- Entries meeting the pre-requisites will be sorted on a FCFS basis.
-- Changes/updates are allowed but that will move the entries to the end of the list.
2. Follow the first two weeks of lectures and complete Quiz#1-2.
3. The result will be announced at 5pm Sep 14, 2023.


This is an introductory course on computer networks, largely the Internet. The course is designed for undergraduate students who are interested in the science and engineering aspects of the Internet. The goal is two-fold: to communicate the technical essence and to foster development skill.

We will take the top-down approach this semester. Following a (hopefully) brief overview, the lectures will go right into the Internet applications most of us are familiar with, e.g., the WWW and the HTTP protocol that's supporting the operation of WWW. HTTP there is referred to as an Application layer protocol.

The intention is to go 3-4 weeks per layer, digging in to the low-level details one layer at a time, e.g., the TCP protocol running at the Transport layer, and the BGP routing running at the Network layer. When time permits, we shall look into the Ethernet protocol running at the Link Layer.

Communication of knowledge is often more effective when it's put into use. Eying also the job prospective, the course features a series of programming assignments (PAs) and accompanying videos to lead you into the world of network and web programming with Go, a programming language adopted widely by the major Internet companies, e.g., Google and Facebook, for server-side implementations.