Quality of Service (QoS)
  IP Networks
OBJECTIVES
Quality of service (QoS) provisioning in IP networks is a challenging task for network designers, managers, researchers and, generically, technical staff. Such challenge has been fostered by a new set of multimedia applications, presumably requiring an IP-centric style of solution for networking.

In this new research and development scenario many alternatives usable for QoS control and management do exist, are continuously evolving and may be intermixed in both private and public network for different type of applications. Quality of service technology evolution follows either market needs (carriers, end-users and local access requirements, metropolitan constraints, among others) but also follows the technology evolution, such as optical networking, just to mention an important one. The fact is, QoS designers and managers deal with a rich set of technical alternatives and have to take decisions based on that.

The proposal of this short-course is to elaborate on the technical basis (QoS characterization and router functionalities) and elaborate on the more strategic alternatives for QoS control and management (DiffServ, MPLS and Policy-Based Networking) by:
-Presenting an introduction focusing on basic principles which are necessary for the majority of QoS solutions available;
-Highlighting the main technical solutions available for QoS in IP networks;
-Indicating the main management and research issues related with the technical aspects discussed; and
-Discussing QoS technical alternatives applicability and market-share.
   
SYNOPSIS


1. Quality of Service in IP Networks – Principles, Target Applications and Solutions:
-“New” IP applications
-Quality of Service (QoS): principles, SLA (Service Level Agreement) and SLS (Service Level Specification).
-QoS Parameters and IP QoS Management – technical alternatives

2. Quality of Service and Multimedia Applications:
-Multimedia traffic characterization
-Traffic and Services: new types and characteristics

3. Router QoS Basic Functionalities:
-Queue Scheduling, Congestion Control and Token Bucket
-Classification, Policing and Shaping
-Research and practical issues

4. QoS with Differentiated Services Architecture – Principles and Applicability:
-DiffServ Services: Expedited Forwarding and Assured Forwarding
-DiffServ and IntServ integration
-End-to-end quality of service
-Implementation analysis

5. MPLS (MultiProtocol Label Switching):
-MPLS Principles and Applications
-Constraint-Based Routing and Traffic Engineering
-MPLS and Optical Switching

6. QoS Frameworks:
-QoS management: overview and issues
-QoS integrated solutions
   

PUBLIC
This course is mainly intended to network engineers and network designers involved in managing and designing IP networks. Some basic knowledge of IP and networking technologies basics is helpful but not absolutely necessary.
INSTRUTOR

    Joberto S. B. Martins
 Joberto Martins joined the University Salvador (UNIFACS) at Salvador, Brazil, as a Full-Professor (Titular) in January 2000 and he is the head of both the Computer Networks Research Group (NUPERC) and the Distance Learning Research Group (NUPPEAD). He holds a Ph.D. ("Docteur") in Computer Science from Université Pierre et Marie Curie (1986), France, a M.Sc. in Electronic Engineering, Netherlands University Foundation (NUFFIC) (1979), Netherlands, and a B.S. in Electronic Engineering, University of Paraíba (UFPb) (1977), Brazil. He has also worked as visiting scientist at ICSI – International Computer Science Institute – Berkeley University at Berkeley - California (USA) in 1995. Dr. Joberto’s research interests include high-speed computer networks, quality of service and multimedia over IP and the development of new telecommunications and web protocols, applications and services. In these areas, Dr. Joberto has previously contributed with papers, books, courses, tutorials, invited talks and has been member of conferences committees in Brazilian and international journals and conferences. As a research head and manager, he conducted various multi-institutional research projects and various individual research projects with a total funding exceeding one million dollars. Dr Joberto former professional activities include: Director of the Institute of Electro-Electronics Technology (ITEEL), member and consultant of the National Informatics Specialists Commission (CEEinf) of the Education Ministry (MEC), President of Itelcon Ltd. in Brazil and Invited Professor at Université Pierre et Marie Curie and Institut National des Télécommunications (INT) in France.