BEEE14

COMPUTER NETWORKS

OBJECTIVE: This course will render the knowledge of various layers involved in computer network.The course deals extensively with the advanced communication techniques like electronic mail,Internet and video conferencing.

1.INTRODUCTION

Goals and applications of Networks, Network structure and architecture. The OSI reference model, services. Physical Layer - Transmission Media, Switching methods, ISDN services, Terminal Handling.

2.MEDIUM ACCESS SUBLAYER AND DATA LINK LAYER

Medium Access sublayer - channel allocations, LAN - topology -protocols - ALOHA protocols - token bus and token ring protocols - overview of IEEE standards - FDDI. Data link layer-Design issues - error detection and correction - Elementary data link protocols, sliding window protocols.

3. NETWORK AND TRANSPORT LAYER

Network layer : Design issues - Point-to-Point Networks, routing, congestion control - Internet working - principles - bridges - routing protocols. Transport Layer - Design issues, connection management.

4.SESSION AND PRESENTATION LAYER

Session layer - Design issues, remote procedure call. Presentation Layer – Design issues, data compression techniques, cryptography.

5.APPLICATION LAYER

Application layer - Design issues - File Transfer, Access and management, Electronic mail, Virtual Terminals, Other applications. Example Networks - Internet and Public Networks – Arcnet, Eithernet. Introduction to TCP/IP.