Friday, 26 04 2019

Computer Communication Networks


Computer Communication Networks
Lesson Code:  22Α802
Level:  Undergraduate
Semester:  7ο


Introduction to computer networks. Concepts and theory. The Open System Inter-connection Reference Model. Entities, protocols, services, primitives. Delay in packet and circuit switching networks. Overview of the OSI seven layers - Five layers only. The Application Layer (WEB-HTTP. FTP. SMTP. DNS. Sockets). The Transport Layer (Principles of reliable transmission, Stop & Wait, Pipelining, TCP/UDP protocols, Round Trip Time, Sequence Numbers, Sliding Window Mechanism, Flow/Congestion Control). The Network Layer (Virtual Circuits. Datagrams. IP protocol. Routing: Link State Algorithm, Distance Vector Algorithm, IP Address, Subnets, ICMP, Autonomous Systems). The Data Link Layer (Error Detection and Correction. Multicast/PPP channels. MAC protocols: TDM, FDM, CDMA, ALOHA, Slotted ALOHA, CSMA/Ethernet, Polling, Token Pass. Local Area Networks (LAN). Wireless LAN. The IEEE 802 Recommendation. The Physical Layer. Hubs, Bridges, Routers, Switches. Elements of Teletraffic theory.


Logothetis Michael
Stilianakis Vasilis