1. CNT 4704 Analysis of Computer Communication Networks
Cliff Zou
Department of Electrical Engineering
and Computer Science
University of Central Florida
Fall 2011

2. About my self Office: HEC 243 Tel: 407-823-5015 czou@eecs.ucf.edu
Office hour: Tuesday/Thursday 12pm – 1:30pm
Course webpage:
UCF Tegrity for online lecture video streaming
Webcourse has a Tegrity link and Syllabus
Each lecture will be posted several hours after a class
Use for homework assignment and grading
Keeping grade private
Easy homework submission
Having a simple BBS channel

3. What is this course about?
Basic “analysis” (don’t be scared by the course’s official name)
Introductory course in “computer networking”
Focus on Internet architecture/protocols
TCP/IP, 2 to 3 networking programming projects
Several lab assignments (fun, real)
(spam), Web. Ethernet, hub, wireless LAN
One chapter on Internet security introduction
Will have small overlaps with CNT3004
Goals:
Learn a lot (facts, principles and practice)
Have fun (Use/apply/understand real world network immediately)

4. Course information Prerequisites: Course materials:
Basic knowledge on Algorithms and Operating Systems
C or C++ programming skills
Basic usage of Linux
Eustics account + my lab Linux (or your own computer) for networking programming
Course materials:
Text: Computer Networking: A Top Down Approach Featuring the Internet, J. Kurose & K. Ross, Addison Wesley, 5th ed., 2009
Textbook online resource (see first page)
Class notes

5. Course information (more)
Workload:
Coursework approx amount approx %
written homework                                         20%
programming (C,C++)             2-3                         24% or 30%
lab assignments (Ethereal)         2                            10%
midterm exam                              1                             20%
final exam                                    1                             26% or 20%
The final grade will use +/- policy, i.e., you may get A, A-, B+, B, B- … grade.

6. Course information (even more)
In-class style: interaction, questions
Real network programming (fun)
Hands on experience: packet trace, spam
Flexible:
Teaching difficulty/speed/contents based on your feedback
So please tell me freely your thinking and interests!
Academic honesty

7. A top-down approach: local ISP regional ISP
We’ll cover networking top-down
regional ISP
End-system applications, end-end transport
Network core: routing, hooking nets together
Link-level protocols, e.g., Ethernet
Other interesting stuff:
Security
wireless
company network

8. Course Overview: Part 1: Introduction (text: Chapter 1) Application
What is the Internet?
Application
Web, , VOIP
Application
Transport
TCP, UDP
Transport
Network IP
Network
Data Link
Ethernet, cellular
Data Link
Physical link

9. Course Overview: Part 2: Application Layer (text: Ch. 2)
Principles of application-layer protocols
World Wide Web: HTTP
File transfer: FTP
Electronic mail:
The Internet's directory service: DNS
VOIP (Voice Over IP)
Socket programming
PROGRAMMING ASSIGNMENT 1
If possible, have another networking program
--- a simple web proxy

10. Course Overview: Part 3: Transport Layer (text Ch. 3)
Transport-layer services and principles
Multiplexing and demultiplexing applications
Connectionless transport: UDP
Principles of reliable of data transfer
TCP case study
PROGRAMMING ASSIGNMENT 2
Principles of congestion control
TCP congestion control

11. Course Overview: Part 4: Network Layer (text: Ch. 4)
introduction and network service model
what’s inside a router?
routing principles (algorithms)
hierarchical routing
IP: the Internet Protocol
Internet routing: RIP, OSPF, BGP

12. Course Overview: Part 5: Link Layer, Local Area Networks (text: Ch. 5)
introduction, services
error detection, correction
multiple access protocols, LANs
LAN addresses, ARP
Ethernet

13. Course Overview: Part 6: Wireless and Mobile Networks (Ch 6)
wireless link characteristics
the wireless link:
802.11
cellular Internet access
Mobility principles
mobility in practice:
mobile IP
mobility in cellular networks
Introduce principle about CDMA
Sensor network, vehicular network introduction

14. Course Overview: Part 7: Network Security (text: Ch. 8)
what is network security?
Introduction of cryptography
authentication: Who are you?
integrity
key distribution, certification
Internet security hot topics:
Malware attacks, denial-of-service attacks, countermeasures
Secure , firewall, honeypot, botnet

15. Summary Introductory, practical Know basic networking programming
All (almost) you need to know about Internet, and applications
Many acronyms, don’t be frustrated