CODE 90145 ACADEMIC YEAR 2024/2025 CREDITS 5 cfu anno 2 INTERNET AND MULTIMEDIA ENGINEERING 10378 (LM-27) - GENOVA SCIENTIFIC DISCIPLINARY SECTOR ING-INF/03 LANGUAGE English TEACHING LOCATION GENOVA SEMESTER 1° Semester MODULES Questo insegnamento è un modulo di: QUALITY OF SERVICE AND PERFORMANCE EVALUATION TEACHING MATERIALS AULAWEB OVERVIEW The importance of quality of service is parallel with the recent evolution of telecommunication networks, which are characterized by a great heterogeneity. Even if the Quality of Service is the object of a great number of studies, questions to answer are: does QoS fit within heterogeneous networks? Which is the impact on the performance if information traverses different network portions that use specific QoS paradigms? These questions and corresponding possible answers are the core of the Course. AIMS AND CONTENT LEARNING OUTCOMES • Definition of QoS, SLA (Service Level Agreement) and SLS (Service Level Specification). • Definition of heterogeneity. • QoS-oriented technologies: ATM, MPLS, IPv4, IPv6, user flow and traffic class identification • Integrated Services, Differentiated Services and DSCP Assignation, advantages and drawbacks, • Network control issues versus time: Traffic Identification, Traffic Shaping, introduction to Scheduling, CAC (Feasibility Region, Equivalent Bandwidth, Bandwidth Reservation), QoS Routing. • QoS over Heterogeneous Networks: concepts and problems, Horizontal and Vertical QoS Mapping, QoS Architectures, QoS Gateway, Relay Node and Relay Layer. • Software Defined Networking (SDN): introduction and aim, architecture, OpenFlow and Flow Table, conclusions and research activities • Delay Tolerant Networking (DTN): introduction and aim, architecture, Bundle Layer, CLA, conclusions and research activities AIMS AND LEARNING OUTCOMES The students at the end of the lectures will have acquired theoretical and practical knowledge about modern architectures for telecommunications networks, about applications, and about their control. The aim is to understand different technological solutions and algorithms to control and design interworking elements within a network. The students will acquire the necessary know-how to design and manage advanced interworking technology, understand main protocols at application layer, and investigate technological challenges, still object of research both industrial and academic, as well as quality of service provision over heterogeneous networks, satellite, space, and interplanetary networks. At the end of the Course the students will learn to use QoS-oriented technologies and Network Control algorithms, to design proper QoS-oriented solutions depending on the application environment, to investigate scientific solutions for state-of-the-art research issues in the field. They will get deep knowledge about: Main applications impacting QoS, Definition of QoS. Definition of heterogeneity. QoS-oriented technologies. Network control issues. QoS over Heterogeneous Networks. QoS Architectures, QoS Gateway, Relay Node and Relay Layer. Software Defined Networking (SDN), Delay Tolerant Networking (DTN). Protocols at application layer: DNS, DHCP, FTP, electronic mail, WWW and HTTP. TEACHING METHODS Lectures integrated by possible laboratory trials, aimed at acquiring theoretical and practical knowledge about modern architectures for telecommunications networks, about applications, and about their control. SYLLABUS/CONTENT Revision of the Transport Layer, DNS, DHCP, FTP, WWW and HTTP, Electronic Mail Definition of QoS, SLA (Service Level Agreement) and SLS (Service Level Specification). Definition of heterogeneity. QoS-oriented technologies: ATM, MPLS, IPv4, IPv6, user flow and traffic class identification. Integrated Services, Differentiated Services and DSCP Assignation, advantages and drawbacks. Network control issues versus time: Traffic Identification, Traffic Shaping, introduction to Scheduling, CAC (Feasibility Region, Equivalent Bandwidth, Bandwidth Reservation), QoS Routing. QoS over Heterogeneous Networks: concepts and problems, Horizontal and Vertical QoS Mapping, QoS Architectures, QoS Gateway, Relay Node and Relay Layer. Software Defined Networking (SDN): introduction and aim, architecture, OpenFlow and Flow Table, conclusions and research activities. Delay Tolerant Networking (DTN): introduction and aim, architecture, Bundle Layer, CLA, conclusions and research activities. The lectures, dealing with topics of scientific-technological interest such as the QoS over Heterogeneous Networks contribute to the achievement of the following Sustainable Development Goals of the UN 2030 Agenda: 8.2 (Achieving higher standards of economic productivity through diversification, technological progress and innovation, also with particular attention to high added value and labor intensive sectors) 9.5 (Increase scientific research, improve the technological capabilities of the industrial sector in all states - especially in developing countries - as well as encourage innovations and substantially increase, by 2030, the number of employees for every million people, in the research and development sector and expenditure on research – both public and private – and on development) RECOMMENDED READING/BIBLIOGRAPHY - Mario Marchese , QoS Over Heterogeneous Networks , Wiley & Sons , Chichester , UK , 2007. - Notes on specific topics issued by the lecturer. - Extracts of international regulatory and scientific documentation provided by the lecturer. - Recordings of the lectures of previous years still available on Teams. - The slides used for each single lecture are made available on Aulaweb. Students with disabilities or learning disorders can use specific modalities and supports that will be determined on a case-by-case basis in agreement with the Delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities, as indicated in Further Information section. Students not following lectures may use the recommended reading material listed above and can ask the lecturer additional indications. TEACHERS AND EXAM BOARD MARIO MARCHESE Ricevimento: Fixed on request. The request should be addressed to the lecturer by using the email. LESSONS LESSONS START https://corsi.unige.it/10378/p/studenti-orario Class schedule The timetable for this course is available here: Portale EasyAcademy EXAMS EXAM DESCRIPTION The exam is carried out in person and is structured in the following steps. Preliminary part 1) The candidate submits a report of about 5-10 pages (including figures) by using the email on a specific scientific paper decided in agreement with the lecturer. The report must be provided in the form of a tutorial article and sent to the lecturer. Oral test 2) The candidate prepares a power point presentation concerning the submitted report, sends it to the lecturer, and, in 15 minutes, presents it at the oral test. Additional 15 minutes are for questions and discussions on the subject of the report. 3) Another 30 minutes will be devoted to an oral test on a couple of topics chosen by the lecturer at the time of the exam. Students with learning disorders will be allowed to use specific modalities and supports that will be determined on a case-by-case basis in agreement with the delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities, as better specified in the Further Information section. ASSESSMENT METHODS Assessment Method: 50% of the final grade will depend on the first part of the exam (points 1 and 2 in the Exam Description section). 50% of the exam will depend on point 3 in the Exam Description section and each question out of two is valid for 7.5 point. As regards the first part of the exam, the evaluation will be based on: analysis of the state of the art, scientific depth of the report, clarity of presentation / exposition. The second part of the exam is a common oral test to check students' theoretical and practical knowledge about modern architectures for telecommunications networks, about applications, and about their control, as declared in the aims of the course. Students with learning disorders ("disturbi specifici di apprendimento", DSA) will be allowed to use specific modalities and supports that will be determined on a case-by-case basis in agreement with the delegate of the Engineering courses in the Committee for the Inclusion of Students with Disabilities. FURTHER INFORMATION Students who have a valid certification of physical or learning disabilities on file with the University and who wish to discuss possible accommodations or other circumstances regarding lectures, coursework, and exams should speak both with the instructor and with Professor Federico Scarpa (federico.scarpa@unige.it ), the School's disability liaison.
