CS 144: Introduction to Computer Networking, Spring 2023

Course info

Course basics

LecturesMondays, Wednesday & Fridays, 11:30 a.m.–12:20 p.m. in Skilling Auditorium
Lab sessionsTuesday or Thursday, 7:30 p.m.–10 p.m. in STLC 114 (Tuesday) or STLC 114 (Thursday)
Exams
  • Midterm: May 11, 7:30 p.m., Hewlett 200
  • Final: Wednesday June 14, 8:30 AM, CEMEX
Practice exams
Contact To contact the course staff, please use Ed, the lab sessions, or office hours. For OAE accommodation letters, please make a private thread tagged “OAE”. You can also contact the course staff via email at cs144-staff@cs.stanford.edu.
Syllabus/logistics Syllabus/logistics handout
Ed CS144 on Ed
Archived lecture videos (2020)Canvas Ponopto Course Videos (Fall 2020) (in folder Fall 2020 - CS144)
Optional course texts
Honor Code DiscussionIn-class discussion of permissible collaboration

Lecturer

Keith Winstein

Email: Winstein email address

Course Assistants

Yuhan Deng
Email: yhdeng at stanford

Gina Yuan
Email: gyuan at cs.stanford

Ellie Talius
Email: etalius at stanford

Neha Kunjal
Email: nkunjal at stanford

Cooper de Nicola
Email: cdenicol at stanford

Isaac Cheruiyot
Email: icykip at stanford

Angela Montemayor
Email: amontema at stanford

Lab Assignment

FAQ Answers to common questions about lab assignment.

Virtual machine setup instructions
Checkpoint 0: networking warmup (Intro video)
Out: April 4, due April 11, 10 p.m.
Checkpoint 1: stitching substrings into a byte stream (Intro video)
Out: April 8, due April 17, 11 a.m.
Checkpoint 2: the TCP receiver (Intro video)
Out: April 15, due May 1, 11 a.m. with bonus if in by April 24
Checkpoint 3: the TCP sender (Intro video)
Out: April 25, due May 8, 11 a.m. with bonus if in by May 1
Checkpoint 4: the network interface (Intro video)
Out: May 16, due May 30, 11 a.m.
Checkpoint 5: the IP router (Intro video)
Out: May 20, due May 30, 11 a.m.
Optional checkpoint 6: putting it all together (Intro video)
Out: May 30, due June 7, 5 p.m.
Checkpoint 7: measuring the Internet (Intro video)
Out: June 1, due June 7, 5 p.m.

Lecture Notes

Week 1 (April 3–7)
Monday
Course intro Stuff you should know about CS144
Wednesday
Datagrams, encapsulation, and multiplexing. | Lecture notes
Friday
How the Internet works (in brief) | Lecture notes
Week 2 (April 10–14)
Monday
Service abstractions, stacks, and reliability | Lecture notes
Wednesday
Idempotence and TCP | Lecture notes
Friday
TCP part 2 | Lecture notes
Week 3(April 17–21)
Monday
TCP part 3 | Lecture notes
Wednesday
Packet Switching | Lecture notes
Friday
Packet Switching 2 | Lecture notes
Week 4(April 24–28)
Monday
Why Congestion Control | Lecture notes
Wednesday
What Congestion Control | Lecture notes
Friday
How Congestion Control | Lecture notes
Week 5(May 1–5)
Monday
Routing Basics | Lecture notes
Wednesday
Bellman Ford and Dijkstra | Lecture Notes
Friday
BGP and How the Internet works in the real world | Lecture Notes
Week 6(May 8–12)
Monday
Naming at different layers of the network stack (Lecture Notes)
Wednesday
The Link Layer aka Physical Layer | Lecture Notes
Friday
Physical Layer cont. (Lecture Notes)
Week 7(May 15–19)
Monday
Elasiticity Buffer revisited (Lecture Notes)
Wednesday
History of Home Networking Level 0 - 4 (Lecture Notes)
Friday
History of Home Networking Level 5 - 8 (Lecture notes)
Week 8(May 22–26)
Monday
History of Home Networking Level 8 - 9c (Lecture Notes)
Wednesday
History of Home Networking Level 9d (Lecture Notes)
Friday
Security (Lecture Notes)
Week 9(May 29–Jun 2)
Monday
Wednesday
The Bad-Attitude Guide to Computer Security | Lecture Notes
Friday
Lecture Notes
Week 10(Jun 5–Jun 9)
Monday
Lecture Notes
Wednesday

Schedule