1. Polytechnic of Namibia Department of Computer Science BBN810S BBN810SBBN810S BROADBAND NETWORKS COURSE OVERVIEW

2. Polytechnic of Namibia Department of Computer Science BBN810SIntroductionIntroduction Telecommunication networks and services are the backbone of the emerging information society  Most innovation depend on the easy access provided by telecom operators The past few years, have seen the emergence of new technologies  Internet, optical fiber, satellite communication

3. Polytechnic of Namibia Department of Computer Science BBN810SIntroductionIntroduction Traffic and number of users are increasing, and new applications are coming. New service providers entering into the marketplace are challenging the established service providers and threatening even the core business of traditional public network operators (PNOs) as they emphasise meeting customers’ needs as the key to success and survival.

4. Polytechnic of Namibia Department of Computer Science BBN810SIntroductionIntroduction Access network is the infrastructure between the customer premises and the nearest local exchange (LEX), point of presence (POP) or cable hub. Access network is often called the last mile or local loop customers Telecom Access Network LEX

5. Polytechnic of Namibia Department of Computer Science BBN810S Example of Access Networks Twisted pair networks, built for telephone services Cable networks, intended for broadcast service Cellular radio for mobile networks Satellite for broadcast

6. Polytechnic of Namibia Department of Computer Science BBN810SIntroductionIntroduction Interactive broadband services are now emerging and none of the mentioned access technology have the capacity to provide interaction broadband without a network upgrade Access networks providers need to prepare their technology to the interaction broadband services The access technology is the most cost sensitive part of the telecom networks and the one closely related to service demands

7. Polytechnic of Namibia Department of Computer Science BBN810SChallengeChallenge Develop the existing network infrastructure into a broadband network, i.e, high speed network.

8. Polytechnic of Namibia Department of Computer Science BBN810S High Speed Networking: A Layered View Video, Audio, Web, FTP TCP/IP, UDP Ubuntu, Win8, OS Intel, AMD NICs ATM, CSMA, CDMA Fibers, lasers, SONET Application Designers Protocol Architects O.S. Architects CPU, Memory, Disk LAN Interfaces Media Access Optical Devices

9. Polytechnic of Namibia Department of Computer Science BBN810S High Speed Networking: A Layered View Faster media/Link does not necessarily imply faster network applications Interdependence between layers Interactions between protocols Need to consider trends of all layers

10. Polytechnic of Namibia Department of Computer Science BBN810S Course Overview Internet/Broadband technologies, protocols, and applications Performance issues Goal: Understanding the design and Implementation of high speed networking protocols.

11. Polytechnic of Namibia Department of Computer Science BBN810S Aims of the Course Expose to algorithms and protocols in Broadband Networking Expose to Analytical methods and Simulation tools used in the design and engineering of Broadband Networks Modeling Telecom Links using Queuing theory, Performance evaluation Expose to techniques such as:  Traffic control, Policing and Shaping  Quality of Service provisioning  Routing (algorithm for lookup table)  Scheduling and Signaling Understanding of high speed switching technology

12. Polytechnic of Namibia Department of Computer Science BBN810S Course Outcomes Use queuing theory to design and model networks Gain experience in using network simulation tools in the performance evaluation of Broadband Networks Understand congestion and traffic management in ATM, TCP/IP, Integrated Services and Differentiated Services Understand admission and access control in broadband networks Understand the switching technology for high speed networks

13. Polytechnic of Namibia Department of Computer Science BBN810S Recommended Reading (Theory) Duck, M. and Read, R. (2003). Data Communications and Computer Network for Computer Scientists and Engineers, 2 nd Edition, Pearson, Prentice Hall. Peterson, L. L. and Davie, B. S. (2003). Computer Networks: A Systems Approach, Morgan Kaufmann. Kurose, J. and Keith K. (2005).Computer Networking, 6 th edition, Addison Wesley. Stallings, W. (2002). High Speed Networks and Internet, Performance and Quality of Service, 2 nd Edition, Prentice Hall. Schwartz, M. (1996). Broadband Integrated Networks, Prentice Hall.

14. Polytechnic of Namibia Department of Computer Science BBN810S Recommended Reading (Practice) Aboelela, E. (2003). Network Simulation Experiments Manual, Morgan Kaufmann. Stallings, W., Brown, K. and Christianson, L. (2004). Data and Computer Communications and Computer Networking with Internet Protocols and Technology: Opnet Lab Manual, Prentice Hall College Div. Aitman, E. (2000). ns-2 tutorial.

15. Polytechnic of Namibia Department of Computer Science BBN810S Assessment Procedure Theory Test 125% Theory Test 225% Labs10% Assignment10% Practical Test30% Total 1 100% A candidate has to score at least 40% to qualify for the exam

16. Polytechnic of Namibia Department of Computer Science BBN810S Assessment Procedure (cont’d) Final Mark will consists of: 50% from Total 1 50% from Examination Minimum pass requirement for this course is 50%. A candidate has to score at least 40% in the examination to be eligible to pass the course.

17. Polytechnic of Namibia Department of Computer Science BBN810SVenuesVenues Lectures: Tuesday (17:15pm) Lecture venue: Lab2 Laboratories: Tuesday (18:25pm) Lab venue: Lab2

18. Polytechnic of Namibia Department of Computer Science BBN810S Course Content Course Overview, Introduction ( Basics, ISDN and B-ISDN, Optical fiber, High speed ADSL) SONET, Congestion Control, OPNET Introduction (Lab 1) ATM Review, Traffic and congestion control in ATM (Lab2) TCP traffic congestion control (Lab3) Introduction to Queuing theory, Example of Single Queue (M/M/1; M/G/1; G/G/1); (Lab4 and Lab5) Reservation Systems and Priority Queue ( Lab 6 and Lab7) Networks of Queues: Jackson Model ( Lab8 an OOP code to simulate Network of Queues) Integrated and Differentiated Services (Lab9); Protocols for Quality of Service (MPLS, Routing in MPLS) (Lab10)