Computer Networks
Code: PCC-CS602
Contact: 3L
Theory: 3 hrs. / Week
Credit Points: 3
Objective:
1.
To develop an understanding of modern network architectures from a design
and performance perspective.
2.
To introduce the student to the major concepts involved in wide-area networks
(WANs), local area networks (LANs) and Wireless LANs (WLANs).
3.
To provide an opportunity to do network programming.
4.
To provide a WLAN measurement ideas.
Pre-Requisite:
1. Basic mathematics principal
2. Basic understanding of computer fundamentals
Unit
Content
1.
Introduction: History and development of computer networks,
networks topologies. Layering and protocols.
Physical Layer: Different types of transmission media, errors in
transmission: attenuation, noise. Repeaters. Encoding (NRZ,
NRZI, Manchester, 4B/5B, etc.), LAN: Design, specifications of
popular technologies, switching. Design of LAN of a campus or a
building, FDM & TDM
Data Link Layer: Error detection (Parity, CRC) & correction
(Hamming distance), Sliding Window, Stop and Wait protocols.
Go back – N ARQ, Selective Repeat ARQ
Medium Access Control Sub Layer: MAC Layer: Aloha, CSMA,
CSMA/CD, CSMA/CA protocols. Examples: Ethernet, including
Gigabit Ethernet and WiFi (802.11), Token Ring, Bluetooth and
WiMax
Network Layer: Internet Protocol, IPv6, ARP, DHCP, ICMP,
Routing algorithms: Distance vector, Link state, Metrics, Interdomain routing. Subnetting, Classless addressing, Network
Address Translation (NAT).
Transport Layer: UDP, TCP Connection establishment and
termination, sliding window revisited, flow and congestion
control, timers, retransmission, TCP extensions, etc.
Application Layer: Examples: DNS, SMTP, IMAP, HTTP etc.;
Basics of Firewalls and Cryptography.
Design issues in protocols at different layers. Network
Programming: Socket Programming.
2.
3.
4.
5.
6.
7.
Hrs. /
Unit
5
7
8
5
5
5
5
Text book and Reference books:
1. Introduction to Algorithms" by Cormen, Leiserson, Rivest, Stein.
2. "The Design and Analysis of Computer Algorithms" by Aho, Hopcroft, Ullman.
3. "Algorithm Design" by Kleinberg and Tardos.
4. Design & Analysis of Algorithms, Gajendra Sharma, Khanna Publishing House, New Delhi
Course Outcomes:
On completion of the course students will be able to
PCC- CS602.1 Understand data communication system, components and the purpose of
layered architecture.
PCC- CS602.2 Relate the functionalities of each layer of OSI and TCP/IP reference model
including their associated protocols.
PCC- CS602.3 Apply the thoughts toward building the networks, secure devices in virtue
of analyzing data.
PCC- CS602.4 Analyse the growing demand of skilled people in the field of network and
system administration.
PCC- CS602.5 Evaluate today’s market of digital economy which is very much dependent
on computer network skill to provide services in the field of finance,
education, transportation, manufacturing, healthcare, retail and so on.
PCC- CS602.6 Create the requirements of enterprises or global corporations to be placed
there.
Suggested Books:
Sl.
No.
1.
2.
3.
4.
5.
Name of Books / Authors
Tanenbaum, A.S, “Computer Networks”, 4th Ed., PearsonEducation.
Forouzan, B.A., “Data Communication and Networking”, 4th Ed.,Tata
McGraw-Hill.
Stallings W., “Data and Computer Communication”, 8th Ed.,
Prentice-Hall.
Kurose, J.F. and Ross, K.W., "Computer Networking: A Top-DownApproach
Featuring the Internet", 3rd Ed., Addison Wesley.
Comer, D.E. and Droms, R.E., “Computer Networks and Internets”,4th Ed.,
Prentice-Hall.
Modified Syllabus of the Course:
Sl.
No.
1.
2.
3.
4.
5.
6.
7.
8.
Contents
Introduction: history and development of computer networks,
networks topologies. Layering and protocols.
Physical Layer: Different types of transmission media, errors in
transmission: attenuation, noise. Repeaters. Encoding (NRZ, NRZI,
Manchester, 4B/5B, etc.).
Data Link Layer: Error detection (Parity, CRC), Sliding Window,
Stop and Wait protocols. LAN: Design, specifications of popular
technologies, switching. Design of LAN of a campus or a building
Medium Access Control Sub Layer: MAC Layer: Aloha, CSMA,
CSMA/CD, CSMA/CA protocols. Examples: Ethernet, including
Gigabit Ethernet and WiFi (802.11), Token Ring, Bluetooth and
WiMax
Network Layer: Internet Protocol, IPv6, ARP, DHCP, ICMP,
Routing algorithms: Distance vector, Link state, Metrics, Inter-domain
routing. Subnetting, Classless addressing, Network Address
Translation (NAT).
Transport
Layer: UDP, TCP. Connection establishment and
termination, sliding window revisited, flow and congestion control,
timers, retransmission, TCP extensions, etc.
Session, Presentation, and Application Layers. Examples: DNS,
SMTP, IMAP, HTTP, etc.
Design issues in protocols at different layers. Network
Programming: Socket Programming
Total
Contact
Hours
5
5
5
5
5
5
5
5
40
Computer Networks Lab
Code: PCC-CS692
Contacts: 4P
Practical: 4 hrs. / Week
Credit Points: 2
Laboratory Experiments:
1.
NIC Installation & Configuration (Windows/Linux)
2.
Understanding IP address, subnet etc. Familiarization with
 Networking cables (CAT5, UTP)
 Connectors (RJ45, T-connector)
 Hubs, Switches
3.
 DHCP configuration
 Message queue
TCP/UDP Socket Programming
 Simple, TCP based, UDP based
 Multicast & Broadcast Sockets
4.
Implementation of
 Data Link Layer Flow Control Mechanism (Stop & Wait, Sliding Window)
 Data Link Layer Error Detection Mechanism (Cyclic Redundancy Check)
5.
Server Setup/Configuration FTP, Telnet, NFS, DNS, Firewall;
Any experiment specially designed by the college.
(Detailed instructions for Laboratory Manual to be followed for further guidance)
Course Outcomes:
On completion of the course students will be able to
PCC- CS692.1 Define the hardware, related to computer network.
PCC- CS692.2 Understand the performance of network protocols such as message queue,
stop-and-wait, CRC etc.
PCC- CS692.3 Apply UNIX socket programs efficiently, based on the knowledge of client
server paradigm.
PCC- CS692.4 Analyse the network traffic in terms of congestion control mechanism.
PCC- CS692.5 Evaluate the datagram forwarding and routing mechanisms compatible with
UNIX platform.
PCC- CS692.6 Create networks in small scale by configuring devices with the help of
knowledge in network addressing.