Computer Networks
CSC 249, Spring 2017
Professor: Judith Cardell, jcardell@smith.edu
Office: 352 Ford Hall
Office hours: Monday 12; Thursday 2:303:30
Class Time: MWF, 10:0010:50, Ford Hall 342
Prerequisites: CSC 111
Text: Computer Networking: A topdown Approach, by
James Kurose and Keith Ross, Pearson, 7th ed., 2017.
CSC 249 Class and Assignment Schedule, Spring 2017
Week  Topic  Reading  HW due the next FRIDAY
(at START of class) 
Jan 27  Introduction

Chapter 1 Possible Project Topics... start finding your own interest

HW 1:
Start using Wireshark Packet Sniffer:

Jan 30  Internet Protocols: Web and email

Chapter 2  HW 2:

Feb 6  Application layer: Socket programming  Chapter 2 §2.7 and §2.8  HW 3:

Feb 13  Sockets end ... and the Transport Layer

Chapter 3 §3.1  §3.4.1; §3.5  HW 3 continued, Due this week 
Feb 20  The Transport Layer

Chapter 3, §3.6  §3.8  HW 4

Feb 27  The Network Layer

Chapter 4: (note that DHCP & NAT are in §4.3)
start Chapter 5 (Link State algorithm) 

Mar 6  Routing Algorithms Continued

Chapter 5, § 5.1 to 5.6 (skim 5.5)  
Mar 13  

Mar 20 
The Link Layer

Chapter 6  
Mar 27  Intro to Wireless & Mobility

Chapters 6 and 7 

Apr 3  Cellular Networks & Mobility & Security  HW 7  Complete the ARP lab  
Apr 10  Network Security
• Digital Signatures, Authentication • Secure email & Trusted Intermediaries • SSL and Firewalls Security 2 Security  PGP Security  SSL & Firewalls 
Chapter 8  
Apr 17  Multimedia Streaming

Privacy Law History  
Apr 24  Multimedia

Chapter 9  No HW this week 
May 1  SDN & Course Review

Chapter 4 & 5, SDN sections  HW 10 


Course Overview and Objectives
The course introduces students to the fundamental concepts in the design
and implementation of computer networks, their protocols and applications.
Topics to be covered include the layered network architecture model, focusing
on the application, transport, network and link layers. There will also
be discussions on wireless networking and internet security issues. Individual
and team projects will give students the opportunity to investigate additional
topics of interest.
The objective of this course is to introduce students to
computer networks. Through the material presented in this
course, students will learn:
Assignments
The schedule below lists the reading for each class period.
Students are expected to do the reading before coming to class, in order to be fully prepared to solidify the
material in the class period.
There will be almostweekly homework assignments, that will include questions
from the text, one programming assignment and a number of labs with Wireshark, a network
analyzer. There will also be one midterm exam and a final exam.
Wireshark Labs
The wireshark network sniffer, packet analyzer can be downloaded from
Wireshark. An html version of the user's guide can be found
at user's guide.html, and a pdf version of the user's
guide can be downloaded from
user's guide.pdf. The wireshark user's guide states the following:
"This guide is not intended to explain network sniffing in general and it will not provide details about
specific network protocols. A lot of useful information regarding these topics can be found at the
Wireshark Wiki"
Homework format
Students are encouraged to work together to understand the concepts,
but each student must hand in her own
solutions. All assignments are to be neatly written or
typed, and stapled, with your name and date. Note that
students are expected to follow the Honor Code for all work
in this course. Copying on homework or quizzes/exams,
and other violations will be brought to the honor board.
The purpose of the homework is for you to have the opportunity to practice the skills and concepts from class. Since homework is the time to practice, you are not expected to have perfects solutions at all times. You are expected to do your best work for each problem however. A complete attempt includes identifying what is known, articulating what you are solving, stating any assumptions, properly labeling figures, and clearly and neatly documenting your progression towards a final result. Homework solutions may be compiled from the solutions submitted by the class, so it is very important that your solutions can be clearly understood by all!
Project
There will be a small group project in which students will
be able to demonstrate their knowledge building during the semester.
Intermediate stages of the project (topic selection, bibliography...) will be handed in as
homework assignments during the semester.
References should following the formatting guidelines in Reference Formatting Guidelines.
Exams
There will be one midterm exam inclass and a final, selfscheduled exam, used to
solidify concepts and learning assess progress.
Class attendance
Students are required to attend class and participate in class
discussions and problem solving exercises. The course grade is 20% participation  as
important as homework and the project!This means that you must be in class and participate in the discussions to receive
full credit for this portion of the course.
Grading
Grades in this course are designed to represent your achievement of the objectives
listed above. The course components that will make up your grade are listed below.
ASSIGNMENT 

Homework sets & labs 

Class particpation 

Project 

Midterm exam 

Final exam 

Late Policy
All homework assignments are to be submitted at the time specified; late
assignments will be penalized at the rate of one point per
minute unless you have requested and received and extension
at least 24 hours before the deadline. However, each
student will have a total of 1 hour (60 minutes) grace time
to be used as desired by that student over the course of the
semester, such that you can have a semester total of 60
tardy minutes for homework and labs without penalty (note
that these minutes cannot be used for inclass reading
questions, quizzes or exams).
Honor Code
The homework assignments that you submit must be your own
work. You are encouraged to discuss the problems and
essay questions with your classmates and work on them together,
but each student must work out her own answers. It is not
okay to copy answers from another student's homework  doing
so is a violation of the Honor Code. Note that it is a
violation of the honor code to 1) use or copy another
student's work, and 2) provide another student with your
work. Projects will be done in small groups. Exams must be
exclusively each student's own work, following the
instructions provided with each exam. Do not hesitate to ask
any questions that you may have concerning the honor code!