1. NETW 503:Internet Course Instructor : Tallal Elshabrawy
Instructor Office : C3.321
Lecture Time & Loc. : Sun. 3rd Slot
Instructor

2. Text Book and References
“Computer Networking: A Top-Down Approach Featuring the Internet 3rd Edition”, J. F. Kurose, and K. W. Ross, Addison Wesley, 2005

3. Course Pre-Requisites
NETW 501 Communication Networks

4. The Networks Revolution
WiFi Networks
DSL Networks
Cable Networks
Sensor Networks
Optical Networks
Home
Networks
Data Centers and Cloud Computing
Body Area Networks

5. Networks in Diverse Businesses
Telecommunications
Business
Inter vehicle communication
Health
Industrial Process Control
Agriculture & Irrigation
Mobile Applications

6. Why Internet?

7. What will you learn from the Course?
Internet Protocol Architecture
Routing in the Internet
Internet Transport Protocols
Developments Towards IPv6
Fundamentals of Internet of Things
Introduction to Software Defined Networks

8. Course Assessment Assignments (Best 2 out of 3) : 10 %
Quizzes (Best 2 out of 3) : 15 %
Project : 15 %
Midterm Exam : 20 %
Final Exam : 40 %

9. 1. Layered Architecture of Communication Networks

10. Comm. Networks: First Set of Questions
What is a Communication Network?
A system connecting different devices such as Phones, Mobiles, PCs, Printers, and Disk Drives
Why do we need Communication Networks?
Need to communicate and share information among different devices
Direct connectivity between each and every device is not feasible
Direct connectivity between each and every device is not actually necessary
In the following we shall focus on Computer Networks

11. The Need for Standards
Computers have different architectures, understand different languages, store data in different formats, and communicate at different rates
Getting everybody to agree on a particular standard has not been easy
Defacto Standards:
Standards that exist by the virtue of wide spread use
Vendors know that producing products consistent with them will have a large market
Standards adopted by Agencies:
Write a proposal and submit it to an agency for consideration
If the proposal has merit and wide spread acceptance, the agency will make suggestions and send it back to the originators for modifications
After several rounds of suggestions and modifications the proposal will be adopted or refused

12. OSI Reference Model
Describes a seven-layer abstract reference model for a network architecture
Purpose of the reference model was to provide a framework for the development of protocols
Open System Interconnect (OSI)
Developed by ISO (International Organization for Standardization)
Open System: A set of protocols that would allow any two different computers to communicate regardless of their underlying architecture

13. The Concept of Layering