Computer networks
J Breen
4 points
* First or second semester
* Clayton
* Prerequisites:
CSC3182 or RDT3662
Objectives At the completion of the subject students should understand, in detail, the standard protocols developed for layers 1 to 4 of the ISO OSI model; understand, in detail, an alternative protocol stack for layers 1 to 4; have a broad understanding of the issues associated with layers 5 and 6, and CASE; be aware of the major communications applications and the features and limitations of each; appreciate the use of a layered model for describing communications functions and be familiar with the architectural features of ISO 7-layer model, including addressing and internetworking.
Synopsis This subject, a continuation of DGS3662, builds on earlier study of underlying data communications technology, and addresses standards for open systems interconnection, alternative mechanisms for lower-layer data communications such as TCP/IP, and communications applications software. The syllabus covers the following topics. The ISO standards for open-systems interconnection: the concept of a layered communications model, the ISO reference model, introduction to layers 5 and 6 and CASE (ASCE, ROSE, reliable transfer elements). Overview of transport-layer function and protocols. Interconnection strategies with OSI, the IONL document, ISO IP. Internet protocols (TCP/IP): network layer (IP, ICMP), transport layer (TCP and UDP), gateway and routing protocols (ARP, RARP, GGP, EGP, RIP). Communications applications: Internet (TCP/UDP) applications (eg Telnet, FTP, NFS), OSI applications (eg FTAM, X.400).
Assessment Examination (2 hours): 50%
* Written assignments (2 at
25% each): 50%
Recommended texts
Dickson G and Lloyd A Open systems inter-connection Prentice-Hall, 1991
Halsall F Data communications, computer networks and open systems 4th edn, Addison-Wesley, 1995
Rose M T The open book Prentice-Hall, 1991
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