Unit NETWORK AND INTERNET ARCHITECTURE

NETWORK AND INTERNET ARCHITECTURE: mod. 1

Code	A004645
CFU	6
Teacher	Osvaldo Gervasi
Teachers	Osvaldo Gervasi
Hours	42 ore - Osvaldo Gervasi
Learning activities	Affine/integrativa
Area	Attività formative affini o integrative
Sector	ING-INF/05
Type of study-unit	Obbligatorio (Required)
Language of instruction	Italian
Contents	The Internet architecture and the local and geographical network architectures are presented. The ISO/OSI reference model, the Network Services and the TCP/IP Internet protocol suite are illustrated in detail: DNS, SSH, FTP, Telnet, NIS, NFS, Automount, Email, HTTP, SNMP, Firewall and Network Security. The IP protocol evolution will be discussed (IPv4, IPv6, IPv8). Some case studies are illustrated.
Reference texts	Andrew S. Tanenbaum, David J. Wetherall, Computer Networks, Pearson ISBN13: 978-0-13-212695-3 Douglas E. Comer, Internetworking With TCP/IP Volume 1: Principles Protocols, and Architecture, 6th edition, 2013. ISBN-10: 0-13-608530-X ISBN-13: 9780136085300 Teaching material provided by the teacher, including bibliographic references
Educational objectives	The main objective of the course is to introduce students to the study of local and geographical networks, particularly the Internet and the Services that are the foundation of the extraordinary evolution of communication and access to information, in order to to play a leading role in the ICT scenario. The main knowledge gained will be: Topology and access methods for local networks, particularly for the Ethernet; Technologies for the realization of wide area networks; Autonomous Systems and Routing Protocols, both Interior Gateway Protocol (OSPF, RIP) and Exterior Gateway Protocol (BGP); IPv4, IPv6 and IPv8 protocols. Family of TCP/IP protocols. Network Services: their design and implementation; Firewall and network security; Monitoring of networks and services. The main acquired skills (i.e. the ability to apply the knowledge) are: Ability to design and implement a data transmission network, avoiding the possible critical issues; Ability to design and implement the Internet network services, with the capacity of avoiding the main problems; Ability to plan and implement efficiently the network security; Ability to plan and implement the monitoring of network and services to prevent potential problems and interruptions.
Prerequisites	No prerequisites are required to the student to attend the course; however the basic knowledge of Internet Services it  is expected to be known by all students.A strong knowledge of open source operating systems like Linux facilitates the acquisition of the concepts presented during classes. Furthermore, examples and use cases will be presented, aimed at facilitating the learning of the concepts covered during classes.
Teaching methods	Lectures using multimedia tools (slides, video, etc). Exercise in the computer room.
Other information	The teacher may deliver classes, labs and exams in English.The teacher is available at adopting during the exam the following languages: English.
Learning verification modality	The exam includes a written test at the computer, based on the LibreEOL system, wich presents to the student a series of tests involving different types of response: multiple choice and / or multiple response and / or drag and drop and / or open-ended. An oral exam of about 20 minutes, in which the student must demonstrate the knowledge of the required concepts, and the ability to organize the concepts to be properly illustrated.
Extended program	The architectures of Local and Geographical Area Networks are presented, starting from the ISO OSI Reference Model and describing the local networks architecture (Ethernet and its variants), and the geographical networks. The TCP/IP Protocol suite is carefully described, presenting the various protocols with respect to the ISO/OSI Reference model. The IPv4, IPv6 and IPv8 protocols are presented. The main Internet Services are presented: DNS, SSH, FTP, Telnet, NIS, NFS, Automount, Email (Transport protocol SMTP and Mail User Agent), HTTP, SNMP, Firewall and Network Security. The Autonomous System concept is illustrated and the dynamic routing protocols are presented: OSPF and RIP as Internat Gateway Protocols (IGP), and BGP as External Gateway Protocol (EGP). The network security is presented, the Firewall and the the systems for preventing and detecting network intrusions. The main configuration issues and files are presented and discussed. Configuration parameters are illustrated and some typical case studies are also presented. The Internet governance is presented, illustrating the main milestones of the Internet evolution.
Obiettivi Agenda 2030 per lo sviluppo sostenibile	This course contributes to the realisation of the UN goals of the 2030 Agenda for Sustainable Development for the following themes: 4. Quality Education 5. Gender Equality

NETWORK AND INTERNET ARCHITECTURE: mod. 2

Code	A004646
CFU	3
Teacher	Damiano Perri
Teachers	Damiano Perri
Hours	21 ore - Damiano Perri
Learning activities	Affine/integrativa
Area	Attività formative affini o integrative
Sector	ING-INF/05
Type of study-unit	Obbligatorio (Required)
Language of instruction	Italian
Contents	Introduction Network fundamentals and models Data coding and representation Network classification and topologies Performance metrics and tools Signal theory and filters Signal modulation techniques Transmission limits and impairments Channel coding and synchronization Error detection and control Multiplexing techniques Physical interfaces and serial standards Modem technologies and xDSL networks Optical fiber networks Digital transport hierarchies Cellular and wireless systems Dedicated networks, ISDN, videoconferencing Data Link layer protocols Examples and exercises
Reference texts	Multimedia material provided by the lecturer.
Educational objectives	Provide knowledge and experience of network protocols and the management of network hardware, Internet services and network security tools.
Prerequisites	No prerequisite required
Teaching methods	The course includes theoretical lessons and classroom discussions. Lessons will be face-to-face and will take place in classrooms at the DMI according to the calendar published on the department's website.
Other information	Course website: www.unistudium.unipg.it
Learning verification modality	The course will be assessed through a written examination to be taken in the classroom using LibreEOL.
Extended program	Introduction ISO/OSI and TCP/IP models Data encodings and numeric codes Transmission flows, DTE/DCE devices Network types and topologies Wireless Mesh network architectures Performance metrics and diagnostic tools Electrical signals and frequency spectrum Fourier series and filters Analog modulations AM, FM, PM Pulse modulation and PCM Nyquist and Shannon theorems Digital modulations ASK, FSK, PSK Multilevel modulations QAM and Trellis Constellation diagrams and EVM Impairments, noise and ISI interference Synchronous, asynchronous transmissions, clock Line coding and scrambling Framing and stuffing techniques Parity checks and CRC FDM and TDM multiplexing Optical multiplexing WDM and EDFA Centronics, RS-232 physical interfaces Serial interfaces RS-422, USB, FireWire Analog modems and ADSL technology FTTx access networks and PON Digital hierarchies PDH, SDH, SONET Dedicated lines CDN and ISDN Videocommunication standards and DVB-H Mobile networks 2G, 3G, 4G, 5G Flow control RTS/CTS, XON/XOFF ARQ protocols, sliding window Line protocols XMODEM, BSC, HDLC Practical exercises guided by the teacher.
Obiettivi Agenda 2030 per lo sviluppo sostenibile	This teaching contributes to the achievement of the UN's 2030 Agenda for Sustainable Development goals.