CS 168 Summer 2025

Instructors: Peyrin Kao, Tess Despres / Lecture: Mon Tue Wed Thu, 2:00–3:30 PM, Evans 10 [Zoom, Playlist]

Announcements

Pre-Semester Announcements

Jun 17

Welcome to CS 168!

• The first lecture is on Monday, June 23.

Past announcements

Course Calendar

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Wk.	Date	Lecture (Playlist, Zoom)	Readings	Discussion	Project
1	Mon Jun 23	1. Intro 1: Layers of the Internet	Intro, Layers, Headers	No discussion	Project 1A (Traceroute) (due Thu Jun 26)
	Tue Jun 24	2. Intro 2: Design Principles	Architecture, Design
	Wed Jun 25	3. Intro 3: Links	Links, Multiplexing	1. Intro I
	Thu Jun 26	4. Routing 1: Principles	Intro, Model, States
2	Mon Jun 30	5. Routing 2: Distance-Vector	Distance-Vector	2. Intro II	Project 1B (Traceroute) (due Thu Jul 03)
	Tue Jul 01	6. Routing 3: Link-State, Addressing	Link-State, Addressing
	Wed Jul 02	7. Routing 4: Routers	Routers	3. Routing I
	Thu Jul 03	8. Routing 5: BGP I	Model, Design
3	Mon Jul 07	9. Routing 6: BGP II	Implementation, IP Header	4. Routing II	Project 2 (Routing) (due Thu Jul 10)
	Tue Jul 08	10. Transport 1: TCP I	Principles
	Wed Jul 09	11. Transport 2: TCP II	Design, Implementation	5. BGP
	Thu Jul 10	12. Transport 3: Congestion Control I	Principles, Design, Implementation
4	Mon Jul 14	13. Transport 4: Congestion Control II	Throughput, Issues, Router-Assisted	6. TCP	Project 3A (Transport) (due Tue Jul 29)
	Tue Jul 15	14. Applications 1: DNS	DNS
	Wed Jul 16	15. Applications 2: HTTP and CDNs	HTTP	7. Congestion Control
	Thu Jul 17	16. End-to-End 1: Ethernet, STP, ARP, DHCP	Ethernet, STP, ARP, DHCP
5	Mon Jul 21	17. End-to-End 2: NAT, TLS	NAT, TLS, End-to-End	No Discussion (Midterm)
	Tue Jul 22	Midterm (Tue July 22, 7–9pm)
	Wed Jul 23	18. Datacenters 1: Topology	Topology, Congestion	8. DNS, HTTP, Ethernet, STP
	Thu Jul 24	19. Datacenters 2: Routing	Routing, Addressing, Virtualization
6	Mon Jul 28	20. Datacenters 3: SDN	SDN	9. ARP, DHCP, NAT
	Tue Jul 29	21. Datacenters 4: Host Networking	Host Networking
	Wed Jul 30	22. Beyond Client-Server 1: Multicast	Multicast	10. Datacenters & SDN	Project 3B (Transport) (due Tue Aug 05)
	Thu Jul 31	23. Beyond Client-Server 2: Collectives	Operations, Implementation
7	Mon Aug 04	24. Special Topics 1: Wireless	Wireless	11. Host Networking
	Tue Aug 05	25. Special Topics 2: Cellular	Cellular
	Wed Aug 06	TBD		12. Multicast and Collectives
	Thu Aug 07	TBD
8	Wed Aug 13	Final Exam (Wed Aug 13, 3–6pm)