BECSE310T: Computer Networks

UNIT-I
Introduction to computer Networks, direction of data flow (simplex,Half duplex, full duplex);
Networks: distributed processing, network criteria, physical structure (type of connection,
topology), categories of network (LAN, MAN, WAN); Internet: brief history, internet today;
Protocols and standards; Reference models: OSI reference model, TCP/IP reference model, their
comparative study.
UNIT-II
Physical Layer: Types of errors, framing (character and bit stuffing), error detection &
correction methods; Flow control; Protocols: Stop & wait ARQ, Go-Back- N ARQ, Selective
repeat ARQ, HDLC;
UNIT-III
Point to point protocol, LCP, NCP, FDDI, token bus, token ring; Reservation, polling,
concentration; Multiple access protocols: Pure ALOHA, Slotted ALOHA, CSMA, CSMA/CD,
FDMA, TDMA, CDMA; Traditional Ethernet, fastEthernet;
UNIT-IV
Routing : techniques, static vs. dynamic routing , routing table for classful address;Routing
algorithms: shortest path algorithm, flooding, distance vector routing, link state routing, Mobile
routing basic algorithms.
UNIT-V
Protocols: ARP,RARP, IP, ICMP, IPV6; Unicast and multicast routing protocols. Congestion
control algorithm: Leaky bucket algorithm, Token bucket algorithm, choke packets. Congestion
control protocols.
UNIT-VI
Process to process delivery; UDP; TCP; Quality of service: techniques to improve Qos.ISDN
services &ATM; DSL technology, Cable modem, Sonet.Wireless LAN: IEEE 802.11;
Introduction to blue-tooth, VLAN’s, Cellular telephony & Satellite network.
Text Books:
1. B. A. Forouzan – “Data Communications and Networking (3rd Ed.) “ – TMH
2. A. S. Tanenbaum – “Computer Networks (4th Ed.)” – Pearson Education/PHI
3. W. Stallings – “Data and Computer Communications (8th Ed.)” – PHI/ Pearson Education
Reference Books:
1. Kurose and Rose – “Computer Networking -A top down approach featuring the internet” –
Pearson Education
2. Introduction to Data Communications and Networking by Wayne Tomasi-Pearson Edition
3. Comer – “Internetworking with TCP/IP, vol. 1, 2, 3(4th Ed.)” – Pearson Education/PHI