COMPUTER NETWORKS COMPUTER NETWORKS AIM To understand the basic concepts of data communication, networking and the usage of protocols. OBJECTIVES To study the basic concepts of Data flow, Topologies and Transmission Media. To introduce the ISO/OSI model. To impart the concept of Error Detection and Error Correction. To initiate the students about Network Concepts. To enrich the students with the Security techniques in Networks.

COMPUTER NETWORKS SYLLABUS UNIT I DATA COMMUNICATIONS8 Components – Direction of data flow – Networks – Components and categories –Types of connections – Topologies – Protocols and standards – ISO / OSI model – Transmission media – Coaxial cable – Fiber optics – Line coding – Modems – RS232 interfacing sequences.

COMPUTER NETWORKS SYLLABUS COMPUTER NETWORKS SYLLABUS UNIT II DATA LINK LAYER 10 Error – Detection and correction – Parity – LRC - CRC – Hamming code – Flow control and error control – Stop and wait – Go back-N ARQ – Selective repeat ARQ – Sliding window – HDLC – LAN – Ethernet IEEE – IEEE – IEEE – IEEE – FDDI – SONET – Bridges.

COMPUTER NETWORKS SYLLABUS COMPUTER NETWORKS SYLLABUS UNIT III NETWORK LAYER 10 Internetworks – Packet switching and datagram approach – IP addressing methods –Subnetting – Routing – Distance vector routing – Link state routing – Routers. UNIT IV TRANSPORT LAYER 9 Duties of transport layer – Multiplexing – Demultiplexing – Sockets – User Datagram Protocol (UDP) – Transmission Control Protocol (TCP) – Congestion control –Quality of Services (QOS) – Integrated services.

COMPUTER NETWORKS SYLLABUS COMPUTER NETWORKS SYLLABUS UNIT V APPLICATION LAYER 8 Domain Name Space (DNS) – SMTP – FTP – HTTP – WWW – Security –Cryptography

COMPUTER NETWORKS COMPUTER NETWORKS TEXT BOOKS 1. Behrouz A. Forouzan, “Data communication and Networking”, Tata McGraw Hill, James F. Kurose and Keith W. Ross, “Computer Networking: A Top - Down Approach Featuring the Internet”, Pearson Education, REFERENCES 1. Larry L. Peterson and Peter S. Davie, “Computer Networks”, 2nd Edition, Harcourt Asia Pvt. Ltd., Andrew S. Tanenbaum, “Computer Networks”, 4th Edition, Prentice Hall of India, William Stallings, “Data and Computer Communication”, 6th Edition, Pearson Education, Peterson, “Computer Networks: A System Approach”,4th Edition, Elsevier India Private Limited, 2007.

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COMPUTER NETWORKS lesson plan

TEACHING PLAN

UN IT -I DATA COMMUNICATIONS Computer Networks teaching plan Components, direction of flow Topologies Transmission Media ISO/OSI Model

Five Components Of Data Communication

Direction of Data Flow Direction of Data Flow

Categories of Topology Categories of Topology

OSI Model OSI Model

UNIT -II DATA LINK LAYER Computer Networks teaching plan Error Detection and Correction Ethernet Token Bus, Token Ring FDDI

Error Detection Methods Error Detection Methods

Ethernet Ethernet

IEEE 802.4, IEEE IEEE 802.4, IEEE 802.5

Fiber Distributed Data Interface

UNIT -III NETWORK LAYER Computer Networks teaching plan Packet Switching Sub netting Routing Algorithms

Packet switching Packet switching

Datagram Approach

Finding the class in binary notation Finding the class in binary notation

UNIT -IV TRANSPORT LAYER Computer Networks teaching plan Packet Switching Sub netting Routing Algorithms

31 Routing Algorithms

LEAKY BUCKET

UNIT -V Computer Networks teaching plan Domain Name Service SMTP, FTP Security

Domain Name Space

File Transfer Protocol

SECURITY

Computer Networks SEMINAR TOPICS Computer Networks SEMINAR TOPICS Network Topologies ISO/OSI Model Error detection Error correction IEEE Token Bus IEEE Token Ring IP addressing methods Sub netting Router User Datagram Protocol Transmission Control Protocol Domain name service (DNS) Cryptography

Computer Networks ASSIGNMENT TOPICS Computer Networks ASSIGNMENT TOPICS 1. Hamming Code 2. Routing Algorithms 3. Congestion Control 4. Cryptography