This class aims at describing the basic concepts and the main design methodologies of the modern communication networks, both local and geographical.
Theory (32 hours)
* General concepts:
o classification: WAN, LAN, PAN;
o topologies;
o reference models: ISO-OSI and TCP/IP;
o circuit-switched and packet-switched networks;
o connection-oriented services and acknowledged services;
o flow control: stop-and-wait and sliding-window (go-back-N and Selective Repeat);
o shaping and policing: leaky bucket and token bucket.
* The Physical Level:
o transmission media and cable organization;
o transmission type;
o information representation (modulation);
o multiplexing techniques (TDM, FDM, CDM) and multiple access (TDMA, FDMA, CDMA);
o Fourier analysis and theorem of Nyquist and Shannon;
o access networks (POTS, ISDN, ADSL, Fibre Channel, Frame Relay, ATM, optical networks);
o geographical networks (PDH, SONET/SDH).
* The Data-Link Level:
o aims and services;
o framing;
o examples: HDLC, SLIP and PPP.
* IEEE 802.X standards:
o topologies and protocols: Ethernet, Fast Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet
o the MAC sub-layer: Aloha, CSMA, CSMA/CD, CSMA/CA;
o the LLC sub-layer;
o bridge, switch and spanning-tree;
o virtual LAN;
o wireless LAN.
* The Network Level:
o aims and services;
o static routing and dynamic routing (distance vector, link state routing);
o hierarchical routing;
o the IP protocol:
-- packet format;
-- address format and use, netmask, ARP and RARP;
-- dynamic host configuration protocol (DHCP);
-- Internet control management protocol (ICMP);
-- interior-gateway protocols (RIP, IGRP, EIGRP, OSPF)
-- exterior-gateway protocols (BGP);
-- class-less inter-domain routing (CIDR);
-- IPv6;
o layer-3 switch.
* The Transport Level:
o aims and services;
o TCP (3-way handshaking, flow control, retransmission, congestion control);
o UDP;
o secure socket layer (SSL);
o firewall, NAT and PAT.
* Geographical networks:
o classification and protocols;
o virtual private networks.
* The Application Level:
o Domain Name Service (DNS),
o the client/server model;
o File Transfer Protocol (FTP);
o electronic mail (SMTP, POP3 e IMAP);
o World Wide Web (HTTP, HTTPS, CGI);
o Simple Network Management Protocol (SNMP);
o Secure Shell (SSH).
Practice (12 hours)
* use of a protocol analyzer
* design of an enterprise IP network
* configuration of a firewall, NAT and PAT
* use of Telnet for the emulation of Internet clients
* installation of Web server
* installation of a virtual private network (VPN)
Author | Title | Publisher | Year | ISBN | Note |
Douglas Comer | Internet e Reti di Calcolatori (Edizione 3) | Pearson Education Italia | 2003 | 8871921674 | |
Douglas Comer | Internetworking con TCP/IP (Vol. 1) (Edizione 5) | Pearson Education | 2006 | 8871922808 | |
Fred Halsall | Networking e Internet (Edizione 5) | Pearson - Addison Wesley | 2006 | 8871922786 | |
Andrew S. Tanenbaum | Reti di calcolatori (Edizione 4) | Pearson - Prentice Hall | 2003 | 8871921828 | |
Peterson LL, Davie BS | Reti di Calcolatori (Edizione 1) | Apogeo | 2004 | 8850321589 | |
J.F. Kurose, K.W. Ross | Reti di calcolatori e Internet - Un approccio top-down (Edizione 6) | Pearson Education Italia | 2013 | 9788871929385 |
Examination consists of:
1) written test with questions about the theory and practice part of the class and numerical exercises
2) project and corresponding documentation (groups of max 3 people)
The final result (over 30 points) is computed summing the result of both the written test and the project (which contributes with max 3 points).
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