CS 168 Spring 2025

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

Announcements

Here are the announcements for Week 11! ⧹(⦁ᴗ⦁)⧸

Mar 31

Guest Lecture

On April 7, 11am–12pm PT, we will have a guest lecture from Vint Cerf.
The lecture is online-only, using the usual lecture Zoom link: https://berkeley.zoom.us/j/94536466050?pwd=N1PwgvsSLImqMF2BRrzjzmFbnWsc6J.1
There will be extra credit if you attend the full duration of the lecture. More details in a separate announcement.

Midterm Feedback

Please fill out the Midterm Feedback Form with your feedback on how this class is going for you so far!
If more than 50% of the class fills it out by the deadline, we’ll offer up to 1 course point of extra credit (see graph below).
The deadline to fill the form out is Friday, April 4th!

Assignments

#276 Project 3B: Transport is due on Tuesday, April 8th.
Check out the extension form should you need it.

Lecture

#354 This week’s lectures will be on protocols related to End-to-End Connectivity!

Discussion

#353 This week’s discussions will be on DNS, HTTP, Ethernet, STP!
Wednesday 4-5 pm in person discussion is cancelled this week only due to a doctor’s appointment.
Thursday 4-5 pm remote discussions are all cancelled due to low attendance.

Guest Lecture EC Graph

image info

~ 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 / Slides		Project 3B (Transport) (due Tue Apr 8)
11	Wed Apr 02	18. End-to-End 1: Ethernet, STP	Ethernet, STP	8. DNS, HTTP, Ethernet, STP Worksheet / Slides
12	Mon Apr 07	19. End-to-End 2: ARP, DHCP, NAT, TLS	ARP, DHCP, NAT, TLS, End-to-End	9. ARP, DHCP, NAT, TLS	HW4: Applications, End-to-End (due Mon Apr 14)
12	Wed Apr 09	20. Datacenters 1: Topology	Topology, Congestion	9. ARP, DHCP, NAT, TLS	HW4: Applications, End-to-End (due Mon Apr 14)
13	Mon Apr 14	21. Datacenters 2: Routing	Routing, Addressing, Virtualization	10. Datacenters & SDN	HW5: Datacenters (due Mon Apr 21)
13	Wed Apr 16	22. Datacenters 3: SDN	SDN	10. Datacenters & SDN	HW5: Datacenters (due Mon Apr 21)
14	Mon Apr 21	23. Datacenters 4: Host Networking	Host Networking	11. Host Networking	HW6: Special Topics (due Mon Apr 28)
14	Wed Apr 23	24. Beyond Client-Server 1: Multicast	Multicast	11. Host Networking	HW6: Special Topics (due Mon Apr 28)
15	Mon Apr 28	25. Beyond Client-Server 2: Collectives	Operations, Implementation	12. Wireless and Cellular
15	Wed Apr 30	26. Special Topics 1: Wireless	Wireless	12. Wireless and Cellular
16	Mon May 05	27. Special Topics 2: Cellular	Cellular
17	Fri May 16	Final Exam (Fri May 16, 3–6pm)