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The aim of this unit is to provide students with an opportunity to understand network modelling and performance evaluation, queuing theory, indicators of network performance, measuring network performance, and predicting network performance with what-if scenarios, layered structure of networks, technical and implementation details of major protocols in the TCP/IP protocols suite. The unit will review the structure of TCP/IP and the network interface layer, followed by a detailed exposition of the design principles and implementation aspects of protocols in the IP and TCP layers. Routing algorithms routing protocol (RIP, BGP, OSPF, IP, hierarchical etc.)and IP network multicasting, congestion control and quality of services (TCP, leak buckets, RSVP) are discussed. This unit will also examine the major application protocols in the TCP/IP protocols suite (e.g. DNS, DHCP, SMTP, NNTP, etc). In addition, the wireless LAN technologies and protocols, 802.11x, are introduced with the aim of supporting mobile applications. The principles and methodologies for the design and deployment of Intranets and Extranets are also covered.
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