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Welcome to COE 431: Computer Networks

Dive into Internet technologies, protocols, and applications. Develop analytical and modeling skills to understand network systems' complexities and make informed evaluations. This course emphasizes effort with projects and exams.

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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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