CSC460: Computer Networks and Data Communications - Fall 2001



Tuesdays 5:00pm 7:30pm


Morrill Hall MO111


Jeffrey N. Denenberg


(203) 268-1021


(978) 359-7977




Home Page:, or

Prerequisites: CSC205 Digital Design, CSC210 Assembly Language

Office Hours:

CSC Office (MO117) or Classroom (MO111) 4:00-5:00 Tuesdays
Contact me via Phone, Fax or Email at any reasonable time

Text: Elahi, Ata Network Communication Technology, Delmar 2001, ISBN 07668-1388-6


Peterson L. & Davie, B. Computer Networks: A Systems Approach, Morgan Kaufmann Publishers, Inc., 1996.

Tanenbaum*, A.S. Computer Networks 3rd edition, Prentice-Hall 1996
* in our library

Course Covers:

Layered Reference Models; network topology; communications theory; protocols; virtual circuits and packet switching; local networks (Carrier Sense/Multiple Access, token ring); internetworking & TCP/IP

Schedule - Fall 2001 (Updated periodically so check regularly)

Supplementary Materials:

        Figures from Elahi, "Network Communication Technology ", (Thanks to Dr. Ata Elahi)

        Lecture Notes based on Peterson reference (Thanks to Dr. Larry Peterson)

        Figures from Tanenbaum, "Computer Networks", 3rd Ed. (PDF Files - Thanks to Dr. Tanenbaum)

        Information, Bandwidth and Noise

        Supplementary Note on Queuing Theory (Thanks to Dr. J. E. Beasly)

        Example Queuing Analysis - A Printer Buffer (Thanks to MathCAD)

        Probability and Queuing - A Full Textbook (Thanks to Ken Vastola, RPI)
This document contains much more than is needed in this course. The captured structure is not quite complete so use the original copy at RPI if you want to delve into any holes.

        G.E.N.I.S.I.S - A Detailed Discussion of SYN Attacks and Defenses (Thanks to Steve Gibson)
The original is at Steve's Web Site.

        Digital Signal Encoding Formats (Thanks to Waseem Besada, Royal Institute of Technology - Stockholm)
The original is at Waseem's Web Site.

        VPN and NAT Routers (Thanks to Mike Fratto, Planet IT)
The original is at on Planet IT's Web Site.

        NAT Routers, Dynamic IPs and FTP

        Get IEEE Standards at IEEE Standards Online Search.

        The Twenty Most Critical Internet Security Vulnerabilities from the SANS Institute .

Homework: (available as scheduled)
Set 1 Set 2
Set 2 Solutions
Set 3 Set 4 Set 5
Set 6

Exam and Homework Results Summary: Includes Final Grades

Class Contact List: You need a UserID and PassWord
(Copy this link and use an FTP client for more reliable access)

Laboratory Assignments: (available as scheduled)

Links to Additional Materials (Let me know if any links are broken):

        Another Forward Error-Correction example

        In my web-wanderings I came across this on-line networks course Introduction to Computer Networks by Jim Kurose. Let me know if you find it useful.

        Another supplement on Link-Level Protocols: A better (but more complex) sliding window simulation at

        A supplement on Token Ring Performance

        Some supplements on CRC Polynomials and a shift register example

        If you're interested in more information about the PC's parallel (and serial) port(s), see and (part of a larger hardware book).

        These pictures show hardware interfaces, but has better pictures.

        shift register example

        Supplementary Note on Probability Thanks to Dr. Howard F. Okrent

        HTML References Page


40% Examinations (2 exams- lowest grade discounted, but not ignored)
40% Final Exam
20% Homework Sets and Laboratory Assignments

There will be no make-up examinations. If you are unable to take one of the mid-term examinations on the assigned date, let me know in advance to make alternative arrangements. If you are unable to take the final examination on the assigned date, then the instructor will record a course grade of incomplete which can be redeemed by taking the final examination when the course is next offered (usually less than 1 year later).

In case of a class cancellation, use U.S. mail, e-mail, fax, or hand delivery to send in the homework assignment by the Friday following the due date. The activity scheduled for a cancelled meeting date, whether exam or lecture, is automatically postponed to the next class meeting when it is eventually held. After a cancellation, a new tentative schedule will be issued.

Late homework will be penalized 1 point/day, up to a maximum penalty of 5 points. All assignments must be turned in before the final exam to receive credit. Each reading assignment should be completed before the weekly meeting, in preparation for a pop quiz. Homework is due at the meeting following the week when it is assigned.

You MUST NOT give, receive, lend, copy or borrow solutions to assignments.