Introduction: Networks – Protocols and standards – Standards organizations – Line configurations – Topology– Transmission mode – Categories of networks – Inter networks OSI model: Functions of the layers. Encoding and modulating: Digital-to-digital conversion – Analog-to-digital conversion – Digital-to-analog conversion Analog-to-analog conversion. Transmission media: Guided media – Unguided media – Transmission impairment – Performance.
Error detection and correction: Types of errors – Detection – Vertical Redundancy Check (VRC) – Longitudinal Redundancy Check (LRC) – Cyclic Redundancy Check (CRC) –Check sum – Error correction. Data link control: Line discipline – Flow control – Error control. HDLC, Project 802 – Ethernet – Token ring – FDDI- SONET – Bridges.
Switching: Circuit switching – Packet switching – Message switching. Internetworks- IP addressing methods – Subnetting –Networking and internetworking devices: Repeaters – Bridges – Gateways – Other devices – Routing algorithms – Distance vector routing – Link state routing.
Duties of transport layer – Multiplexing – Sockets – User Datagram Protocol (UDP) – Transmission Control Protocol (TCP) – Congestion Control – Quality of services (QOS). Domain Name Space (DNS) – SMTP – FTP – HTTP – WWW
Network Security and Applications - Cryptographic Building Blocks - Key Pre-distribution, Firewalls - Traditional Applications -Infrastructure Services.
Reference Book:
William Stallings, “Data and Computer Communicationâ€, 10th Edition, Pearson Education, 2013. Larry L Peterson and Bruce S Davie, Computer Networks A Systems Approach, 5th Edition, MKP – 2012
Text Book:
Behrouz A.Forouzan, “Data Communication and Networkingâ€, 5th Edition, Tata McGraw Hill, 2012. Andrew Tannenbaum.S, “Computer Networksâ€, 5th Edition, Pearson Education, 2011.
