CS 168 Spring 2025

For questions, please see the FAQ page for Summer 2025 or Fall 2025.

Announcements

Here are the announcements for Week 15! ⧹(⦁ᴗ⦁)⧸

Apr 28

Final Exam (Friday, May 16, 3–6pm PT)

You can bring four 8.5” × 11” cheat sheets, each two-sided.
All lectures, discussions, projects, and homeworks — exclude wireless and cellular — are included in the exam scope.
For the remaining final exam logistics please see exam logistics.
Feel free to email cs168@berkeley.edu for final exam logistics questions.

Course Evaluation Form (EXTRA CREDIT)

Extra credit will be given to filling out the Course Evaluation Form!
You should received an email today from course-evaluations@berkeley.edu with the link to fill out the form.
The deadline to fill the form out is Sunday, May 11, 2025 11:59 PM!

Assignments

#444 HW 6: Special Topics is due on Monday, April 28th.
Check out the extension form should you need it.

Lectures

#421 All the remaining lecture slides are updated, and should reflect the correct dates.

Discussion

#457 This week’s discussions will be on Multicast and Collectives!

~ CS168 Course Staff 🤖

Past announcements

Calendar

Skip to current week

Wk.	Date	Lecture (Playlist, Zoom)	Readings	Discussion	Homework	Project
1	Wed Jan 22	1. Intro 1: Layers of the Internet Slides / Recording	Intro, Layers, Headers	No discussion		Project 1A (Traceroute) (due Tue Feb 4)
2	Mon Jan 27	2. Intro 2: Design Principles Slides / Recording	Architecture, Design	1. Intro I Worksheet / Solutions / Slides
2	Wed Jan 29	3. Intro 3: Links Slides / Recording	Links, Multiplexing	1. Intro I Worksheet / Solutions / Slides
3	Mon Feb 03	4. Routing 1: Principles Slides / Recording	Intro, Model, States	2. Intro II Worksheet / Solutions / Slides	HW1: Architecture (due Mon Feb 24)
3	Wed Feb 05	5. Routing 2: Distance-Vector Slides / Recording	Distance-Vector	2. Intro II Worksheet / Solutions / Slides	HW1: Architecture (due Mon Feb 24)	Project 1B (Traceroute) (due Fri Feb 14)
4	Mon Feb 10	6. Routing 2: Distance-Vector (continued) Slides / Recording	Distance-Vector	3. Routing I Worksheet / Solutions / Slides
4	Wed Feb 12	7. Routing 3: Link-State, Addressing Slides / Recording	Link-State, Addressing	3. Routing I Worksheet / Solutions / Slides
5	Mon Feb 17	No Lecture (Presidents’ Day)		4. Routing II Worksheet / Solutions / Slides	HW2: Routing (due Mon Mar 17)	Project 2 (Routing) (due Fri Feb 28)
5	Wed Feb 19	8. Routing 4: Routers Slides / Recording	Routers	4. Routing II Worksheet / Solutions / Slides	HW2: Routing (due Mon Mar 17)
6	Mon Feb 24	9. Routing 5: BGP I Slides / Recording	Model, Design	5. BGP Worksheet / Solutions / Slides
6	Wed Feb 26	10. Routing 6: BGP II Slides / Recording	Implementation, IP Header	5. BGP Worksheet / Solutions / Slides
7	Mon Mar 03	11. Transport 1: TCP I Slides / Recording	Principles	6. TCP Worksheet / Solutions / Slides	HW3: Transport (due Mon Mar 31)
7	Wed Mar 05	12. Transport 2: TCP II Slides / Recording	Design, Implementation	6. TCP Worksheet / Solutions / Slides	HW3: Transport (due Mon Mar 31)
8	Mon Mar 10	13. Transport 3: Congestion Control I Slides / Recording	Principles, Design, Implementation	No Discussion (Midterm)
	Tue Mar 11	Midterm (Tue Mar 11, 7–9pm)
	Wed Mar 12	14. Transport 4: Congestion Control II Slides / Recording	Throughput, Issues, Router-Assisted			Project 3A (Transport) (due Fri Mar 21)
9	Mon Mar 17	15. Transport 4: Congestion Control II (continued) Slides / Recording	Throughput, Issues, Router-Assisted	7. Congestion Control Worksheet / Solutions / Slides
9	Wed Mar 19	16. Applications 1: DNS Slides / Recording	DNS	7. Congestion Control Worksheet / Solutions / Slides
10	Mon Mar 24	No Lecture (Spring Break)		No Discussion (Spring Break)
10	Wed Mar 26	No Lecture (Spring Break)		No Discussion (Spring Break)
11	Mon Mar 31	17. Applications 2: HTTP Slides / Recording	HTTP	8. DNS, HTTP, Ethernet, STP Worksheet / Solutions / Slides		Project 3B (Transport) (due Tue Apr 8)
11	Wed Apr 02	18. End-to-End 1: Ethernet, STP Slides / Recording	Ethernet, STP	8. DNS, HTTP, Ethernet, STP Worksheet / Solutions / Slides
12	Mon Apr 07	19. End-to-End 2: ARP, DHCP, NAT, TLS Slides / Recording	ARP, DHCP, NAT, TLS, End-to-End	9. ARP, DHCP, NAT Worksheet / Solutions / Slides	HW4: Applications, End-to-End (due Mon Apr 14)
12	Wed Apr 09	20. End-to-End 2: ARP, DHCP, NAT, TLS (continued) Slides / Recording	ARP, DHCP, NAT, TLS, End-to-End	9. ARP, DHCP, NAT Worksheet / Solutions / Slides	HW4: Applications, End-to-End (due Mon Apr 14)
13	Mon Apr 14	21. Datacenters 1: Topology Slides / Recording	Topology, Congestion	10. Datacenters & SDN Worksheet / Solutions / Slides	HW5: Datacenters (due Mon Apr 21)
13	Wed Apr 16	22. Datacenters 2: Routing Slides / Recording	Routing, Addressing, Virtualization	10. Datacenters & SDN Worksheet / Solutions / Slides	HW5: Datacenters (due Mon Apr 21)
14	Mon Apr 21	23. Datacenters 3-4: SDN and Host Networking Slides / Recording / Slides Part 2	SDN, Host Networking	11. Host Networking Worksheet / Solutions / Slides	HW6: Special Topics (due Fri May 09)
14	Wed Apr 23	24. Beyond Client-Server 1: Multicast Slides / Recording	Multicast	11. Host Networking Worksheet / Solutions / Slides	HW6: Special Topics (due Fri May 09)
15	Mon Apr 28	25. Beyond Client-Server 2: Collectives Slides / Recording	Operations, Implementation	12. Multicast and Collectives Worksheet / Solutions / Slides
15	Wed Apr 30	26. Special Topics 1: Wireless Slides / Recording	Wireless
16	Mon May 05	27. Special Topics 2: Cellular Slides / Recording	Cellular
16	Wed May 07
17	Fri May 16	Final Exam (Fri May 16, 3–6pm)