CDA 4527
Computer Communication
Networking
(not “analysis”)
Prof. Cliff Zou
School of Electrical Engineering
and Computer Science
University of Central Florida
Fall 2007
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About my self
 Office: HEC 335
 Tel: 407-823-5015
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czou@cs.ucf.edu
Office hour: Tuesday/Thursday 1pm – 3pm
Course webpage: http://www.cs.ucf.edu/~czou/CDA4527
Graduated from Umass in Summer 2005
Research interests:
Computer and network security
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Malware modeling, simulation, detection, defense
denial-of-service attack, software security
Other Internet security
Network modeling, optimization and
performance evaluation
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What is this course about?
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Very few, very basic “analysis” (don’t be scared by
the course’s official name)
Introductory course in “computer networking”
Focus on Internet architecture/protocols
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TCP/IP, 2 networking programming projects
Several lab assignments (fun, real)
Email (spam), Web. Ethernet, hub, wireless LAN
One chapter on Internet security introduction
Goals:
 Learn a lot (facts, principles and practice)
 Have fun (Use/apply/understand real world
network immediately)
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Student evaluation of this course
 Fall 2005 (18):
Excellent-55%,
 Very good-18.2%
 Good-18.2%, Fair-9.1%, Poor-0%
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 Fall 2006 (6):
 Excellent-76.7%
 Very good-21.7%
 Good-0%, Fair-1.7%, Poor-0%
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Course information
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Prerequisites:
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Basic knowledge on Algorithms and Operating Systems
C or C++ programming skills
Basic usage of Linux
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Olympus account + my lab Linux for networking programming
Course materials:
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Text: Computer Networking: A Top Down
Approach Featuring the Internet, J.
Kurose & K. Ross, Addison Wesley, 4rd ed.,
2007
Textbook online resource (see first page)
Class notes
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Course information (more)
 Workload:
Coursework
approx amount
written homeworks
3-4
programming (C)
2 (3?)
lab assignments (Ethereal)
2-4
midterm exam
1
final exam
1
one-minute in-class paper
?
approx %
15%
20%
10%
20%
30%
5%
The final grade will use +/- policy, i.e., you may get
A, A-, B+, B, B- … grade.
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Course information (even more)
 In-class style: interaction, questions
 Real network programming (fun)
 Hands on experience: packet trace, email spam
 Flexible:
 Teaching difficulty/speed/contents based on your feedback
 So please tell me freely your thinking and interests!
 Academic honesty
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A top-down approach:
We’ll cover networking
top-down
 End-system applications,
end-end transport
 Network core: routing,
hooking nets together
local ISP
regional ISP
 Link-level protocols, e.g.,
Ethernet
 Other interesting stuff:
 Security
 wireless
company network
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Course Overview:
Part 1: Introduction (text: Chapter 1)
 What is the Internet?
Application
Web, Email, VOIP
Application
Transport
TCP, UDP
Transport
Network
IP
Network
Data Link
Ethernet, cellular
Data Link
Physical link
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Course Overview:
Part 2: Application Layer (text: Ch. 2)
 Principles of application-layer protocols
 World Wide Web: HTTP
 File transfer: FTP
 Electronic mail: Email
 The Internet's directory service: DNS
 VOIP (Voice Over IP)
 Socket programming
PROGRAMMING ASSIGNMENT 1
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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
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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
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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
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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
 Sensor network, vehicular network introduction
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Course Overview:
Part 7: Network Security (text: Ch. 8)
 what is network security?
 Introduction of cryptography
authentication: Who are you?
 integrity
 key distribution, certification
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 Internet security hot topics:
 Malware attacks, denial-of-service attacks,
countermeasures
 Secure email, firewall, honeypot, botnet
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