Data Networks, ICS 451

This page is subject to change without notice -- please reload it in your browser if an item that might affect you may have changed.

The organization of the course is described here. Please review it at the beginning of the course and occasionally during the course. It includes information about course goals, class time and location, contacting the instructor, office hours, the textbook, grading, and the no cheating policy.

If you have any questions, please contact the instructor.

Schedule

Presentation notes are in HTML. I usually post notes no later than the day before the lecture. Much of the material is based on what was presented in the fall of 2007, but the detailed schedule will be different in more closely following the new textbook.

• Tue, Jan 13. class introductions, course summary. Textbook section 1.1.
  Outline
  • course overview
  • what is networking?
  • clients and servers
  • internet service and sockets
  • connection-oriented and connectionless transport
• Thu, Jan 15. sockets API, network application programming. Read Exercise 1 and Section 2.7 in the textbook.
  Outline
  • connections and sockets
  • Sockets API
  • HTTP and HTML
  • Exercise 1
  Exercise 1 assigned, due January 22nd.
• Tue, Jan 20. HTML, textbook sections 2.1 and 2.2.
  Outline
  • HTTP
  • HTML
  • project 1
  • Packet Switching
• Thu, Jan 22. Packet switching, textbook sections 1.2 and 1.3.
  Outline
  • project 1
  • Packet Switching
  • the Internet
  Project 1 assigned, due February 12th, with intermediate results due January 29th and February 5th.
• Tue, Jan 27. Network performance, layered design, textbook sections 1.4 and 1.5.
  Outline
  • exercise 1 feedback
  • network performance
  • layered design
• Thu, Jan 29. Layered design, network security, Internet history. Textbook sections 1.5-1.8.
  Outline
  • layered design
  • network security
  • history of networking and the internet
  First part of Project 1 due.
• Tue, Feb 3. FTP and email, textbook Sections 2.3-2.4.
  Outline
  • application-layer protocols
  • FTP
  • email
• Thu, Feb 5. Email and DNS, textbook Sections 2.4-2.5.
  Outline
  • email
  • DNS
  Second part of Project 1 due.
• Tue, Feb 10, P2P, textbook Section 2.6. Transport Layer, multiplexing and demultiplexing, UDP, textbook Sections 3-3.2.
  Outline
  • peer-to-peer
  • Internet telephony
  • transport layer
  • multiplexing and demultiplexing
  • User Datagram Protocol
• Thu, Feb 12, UDP, textbook Section 3.3. Exam review, Textbook Chapters 1, 2, and 3-3.3.
  Outline
  • User Datagram Protocol
  • Internet checksum
  • exam review
  Project 1 due. All projects MUST be turned in by the end of this day or will receive no credit.
• Tue, Feb 17. Exam 1, on all the material so far.
• Thu, Feb 19. Reliable data transfer, textbook section 3.4.
  Outline
  • reliable transmission
  • stop-and-wait protocol
  • alternating bit protocol
  • go-back-N protocol
  • selective retranmsission protocol
  • summary of retransmission components
• Tue, Feb 24. TCP, textbook section 3.5.
  Outline
  • transmission control protocol
  • header
  • sequence and acknowledgment numbers
  • TCP timer
  • header flags
  • connection establishment and shutdown
  • flow control window
  Exercise 2: please do problem P28 (p. 301) in Chapter 3, and send the answers to the instructor by Thursday, February 26th. Also, please read the description of Project 2 by class time on Thursday.
  Review 1 due. The review is described in the email that was sent to the class mailing list on February 17th.
• Thu, Feb 26. TCP and congestion control, textbook sections 3.5-3.6.
  Outline
  • project 2
  • connection establishment and shutdown
  • flow control window
  • congestion control
  Project 2 assigned, due Sunday, March 29th.
  Exercise 2 due: problem P28 (p. 301) in Chapter 3 (due any time), and reading the description of Project 2 (due before class).
• Tue, Mar 3. TCP flow and congestion control, textbook sections 3.5-3.7.
  Outline
  • flow control window
  • congestion control
  • congestion control for TCP: slow start, AIMD
  • fairness
• Thu, Mar 5. TCP congestion control, textbook section 3.7. Network Layer, textbook sections 4-4.2.
  Outline
  • congestion control for TCP: AIMD
  • fairness
  • network layer
  • virtual circuit and datagram networks
  First milestone due for Project 2.
• Tue, Mar 10. Network Layer and IP, textbook sections 4-4.3.
  Outline
  • datagram networks
  • forwarding design
• Thu, Mar 12. Network Switches and IP, textbook sections 4.3.3-4.4.1.
  Outline
  • forwarding design
  • IP
  • IP fragmentation
  Second milestone due for Project 2.
• Tue, Mar 17. IP fragmentation, IP addressing, and DHCP, textbook section 4.4.
  Outline
  • IP fragmentation
  • IP addressing
  • DHCP
• Thu, Mar 19. NAT, Firewalls, ICMP, IPv6, IP security. textbook section 4.4.
  Outline
  • NAT
  • Firewalls
  • ICMP
  • IPv6
  • IP security
• Tue, Mar 31. Exam review
  Outline
  • reliable transmission
  • TCP
  • network layer issues
  • IP
  • project 2
• Thu, Apr 2. Exam 2.
• Tue, Apr 7. Routing principles, textbook section 4.5.
  Outline
  • Routing Algorithms
  • Link-State
  • Distance-Vector
  • Hierarchical Routing
  Assignment: please read Project 3 before the Thursday lecture.
• Thu, Apr 9. Routing principles, textbook section 4.5.
  Outline
  • Link-State
  • Distance-Vector
  • Hierarchical Routing
  Review 2 due on Wednesday, April 8th.
• Tue, Apr 14. Internet Routing, textbook section 4.6.
  Outline
  • Hierarchical Routing
  • RIP
  • OSPF
  • BGP
• Thu, Apr 16. Broadcast and Multicast, textbook section 4.7. Data Link Layer, textbook sections 5-5.2.
  Outline
  • broadcast
  • multicast
  • data link layer
  • error detection and correction
  Project 3 design due.
• Tue, Apr 21
  In-class presentations on Project 3 designs.
  If time allows, also the following material from sections 5.1 and 5.2 in the textbook:
  Outline
  • data link layer implementation
• Thu, Apr 23. Error detection, section 5.2 in the textbook. Aloha net and CSMA, section 5.3 in the textbook.
  Outline
  • error detection and correction
  • Aloha
  • Ethernet MAC
• Tue, Apr 28. Ethernet and ARP, sections 5.3-5.6 in the textbook. 802.11/WiFi, sections 6.2-6.3 in the textbook.
  Outline
  • Ethernet
  • ARP
  • 802.11/WiFi
• Thu, Apr 30. Network security, sections 8.1-8.3, with mention of the material explained in the remainder of the chapter.
  Outline
  • Network Security
  • Symmetric-Key Encryption
  • Public-Key Encryption and Signatures
  • Security protocols
• Tue, May 5. Course review.
  Outline
  • data Link layer: Aloha, Ethernet, switching, and 802.11
  • network layer: IP and routing
  • transport layer: TCP and reliable transmission (and flow and congestion control)
  • application layer: HTTP, DNS, bittorrent, and email
  • networking principles: performance, error detection, layering, security
  Project 3 due on Wednesday May 6th.