CS 337 Assignments

Things to hand in

Assigned 1/5/00, due Monday, 1/10/00. Assignment 1: The Finger User Information Protocol
Assigned 1/12/00, due 1/19/00. Submit via HSP. Write a client and a server implementing the MFTP protocol. You should test your client and server separately by seeing whether they work with other people's clients and servers. Let me know if you detect any ambiguities in the protocol. See the main course page for information on sockets and some client/server code examples.
Assigned 1/24/00, due Monday 1/31/00. Some problems. Submit on paper.
Lab exercises, 2/4/00.
More lab exercises, 2/11/00.
Assigned 2/14/00, due Friday 2/18/00. You may work with a partner.
The files stopandwait.h and stopandwait.c contain a simplex, two-nodes-only stop-and-wait data link protocol. Your job is to modify them to make the protocol (1) duplex and (2) suitable as a data link protocol for a network of four nodes, each of which is linked to every other node. You will need to devise a way for each node to determine which nodes are connected to the other ends of each of its links. You may hard-code this information into your code, or you may invent some kind of neighbor discovery process, for which you may use CNET_write_physical_reliable() (for the rest of the code, you may not use CNET_write_physical_reliable(), except while you're debugging).
Here's a topology file to help you get started: STOPANDWAIT.

Other things to do

Assigned 1/5/00. Sign up for the Internet Engineering Task Force (IETF) mailing list. Instructions are at http://www.ietf.org/maillist.html

Readings

Don't let the suggestions here limit you. If one of these readings points you to another reference that sounds like it might answer your questions or lead you into an interesting area, by all means go get the new reference and read it. If you find something useful or interesting, please let me know, and I'll pass it along to the rest of the class.

If you print out any of the on-line resources below, please print 2-up if you can. For a lot of this technical stuff, I go with 4-up, but I don't have much trouble reading tiny type.

For Monday, 1/10/00.
- All of Chapter 1 of Tanenbaum, with emphasis on 1.3 and 1.4.
- RFC 1288: The Finger User Information Protocol
By Wednesday, 1/12/00.
- ACM Code of Ethics and Professional Conduct ftp://ftp.isi.edu/in-notes/rfc2026.txt
- RFC 2026: The Internet Standards Process -- Revision 3
- RFC 2028: The Organizations Involved in the IETF Standards Process.
- Take a look at the ISOC standards page, which includes, among other things, a history of the Internet standards process.
1/21/00. Sections 3.2 (Error Detection and Correction), 7.1 (Network Security), and 7.7.3 (Data Compression) of Tanenbaum. Also, Question 70 from the comp.compression newsgroup Frequently Asked Questions. The answer to this question includes a nice introduction to Lempel-Ziv Welch compression.
2/XX/00 The rest of chapter 3.
2/22/00 Sections 5.1-3.

Jeff Ondich, Department of Mathematics and Computer Science, Carleton College, Northfield, MN 55057, (507) 646-4364, jondich@carleton.edu