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Welcome to COE 431: Computer Networks

Welcome to COE 431: Computer Networks. Instructor: Wissam F. Fawaz Office 103, Bassil Bldg. Email: wissam.fawaz@lau.edu.lb Required text book: James Kurose and Keith Ross, Computer Networking: A Top-Down Approach , Sixth Edition, Addison Wesley, 2013. Course website:

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Welcome to COE 431: Computer Networks

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  1. Welcome to COE 431: Computer Networks • Instructor: • Wissam F. Fawaz • Office • 103, Bassil Bldg. • Email: wissam.fawaz@lau.edu.lb • Required text book: • James Kurose and Keith Ross, Computer Networking: A Top-Down Approach, Sixth Edition, Addison Wesley, 2013. • Course website: • http://services.sea.lau.edu/academia/courses/coe431/

  2. Outline • Course Description and Objectives • Prerequisites • Course outline • Grading • Late submission policy

  3. Course description • Part I: • Introduction and fundamental concepts • Part II: • Internet Protocol Layers

  4. Course Objectives • Understand Internet • Technologies, terminology, issues, constraints • Description: what is out there? • Design and Implement • Internet applications, protocols and algorithms • Skill-oriented: projects • Model • complex network systems • Analytical: parameter selection, and proof techniques • Evaluate • Alternatives, strengths and weaknesses • Critical: what is wrong with…? How else can we model…?

  5. Am In the Right Room? • This course does not directly address • “How do I make money on the Internet?” • “How do I configure an Apache web server?” • Social/psychological impact of the Internet • This course • involves much more than using internet applications • will require significant effort (projects, HWs, and exams)

  6. Course outline, Part I: Introduction • Brief history of networking and the Internet • Protocol layering • Connections vs. connection-oriented service • Packet switching vs. circuit switching • Edge vs. core

  7. Course outline, Part II: Internet Protocol Layers • Application layer • Web and HTTP, ftp, mail, DNS, P2P file sharing, and socket programming • Transport layer • UDP, TCP, flow and congestion control • Network layer • Routers, IP, routing algorithms and protocols, broadcast and multicast • Data link layer • Error detection/correction, multiple access, Ethernet, PPP, and virtualization.

  8. Grading • Assignments/Projects/quizzes: 25% • Problems, lab assignments, and protocol reviews • Exam I + Exam II: 45% • Final: 30% • comprehensive

  9. Homeworks • Each student must provide • His own solution • Due at the beginning of the class on due day • Ok to discuss problems with other students • Not ok to share solutions

  10. Exams • Goal: • Ensure you grasp fundamentals of networking • May include multiple choice questions • Final exam will be comprehensive – based on • Text, • lectures, • homework assignments and projects

  11. Late submission policy • Homework • No late homework will be accepted • Projects • No late projects will be accepted • Final exam • Miss the final exam without a valid excuse => F • Make-up exam • only under truly extraordinary circumstances

  12. Specific Teaching Goals • The design of this course and its policies attempts to • Prepare and reward good students because • Network impact quality of life • Unskilled practitioners are dangerous • Skilled practitioners are valuable • Improve your skills in • Network design and analysis • Performance analysis • Documentation design

  13. So what is a good student? • A good student is someone, who • Is motivated (tries hard) • Has aptitude (can do the work) • Has good background (knows the prerequisites/basics)

  14. Why you shouldn’t take this course? • You are not ready for hard work • You don’t have 2 hours/week • You just want to sit and listen • You are not ready to take the initiative • Only key concepts will be covered in class • Students are expected to read the rest from the book

  15. NonGoals of the course • This course is not intended to • Focus on the implementation specifics of a vendor • Provide • Cisco/3com/Novell (or any other brand) certification • But, I can promise the following • This course make these things easier to learn • Once you know the general principles and “Big Picture”

  16. Summary • Computer networking is important for all areas of computing • Goal: to prepare you for a career in networking • Get ready to work hard

  17. End-user perspective • Like many people • Your perspective about networks • Is that of a user of the network • As opposed to the network engineer • As students • You view the Internet as a connection thru a wall plug • What happens behind the wall plug is magic !!

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