21EC53 Computer Communication Networks syllabus for EC

Introduction:

Data communication: Components, Data representation, Data flow, Networks: Network criteria, Physical Structures, Network types: LAN, WAN, Switching, The Internet. (1.1,1.2, 1.3 (1.3.1to 1.3.4 of Text).

Network Models:

TCP/IP Protocol Suite: Layered Architecture, Layers in TCP/IP suite, Description of layers, Encapsulation and Decapsulation, Addressing, Multiplexing and Demultiplexing, The OSI Model: OSI Versus TCP/IP. (2.2, 2.3 of Text)

Data-Link Layer:

Introduction: Nodes and Links, Services, Two Categories’ of link, Sublayers, Link Layer addressing: Types of addresses, ARP (9.1, 9.2 (9.2.1, 9.2.2))

Data Link Control (DLC) services:

Framing, Flow and Error Control. (11.1 of Text) Media Access Control: Random Access: ALOHA, CSMA, CSMA/CD, CSMA/CA. (12.1 of Text).

Connecting Devices:

Hubs, Switches, Virtual LANs: Membership, Configuration, Communication between Switches, Advantages. (17.1,17.2 of text)

Wired and Wireless LANs:

Ethernet Protocol, Standard Ethernet. (13.1, 13.2 (13.2.1 to 13.2.5 of Text)

Introduction to wireless LAN:

Architectural Comparison, Characteristics, Access Control. (15.1 of Text)

Network Layer:

Introduction, Network Layer services: Packetizing, Routing and Forwarding, Other services, Packet Switching: Datagram Approach, Virtual Circuit Approach, IPV4 Addresses: Address Space, Classful Addressing, Classless Addressing, DHCP, Network Address Resolution (18.1(excluding 18.1.3), 18.2, 18.4 of Text)

Network Layer Protocols:

Internet Protocol (IP): Datagram Format, Fragmentation, Options, Security of IPv4 Datagrams. (19.1of Text), IPv6 addressing and Protocol (22.1 and 22.2).

Unicast Routing:

Introduction, Routing Algorithms: Distance Vector Routing, Link State Routing, Path vector routing. (20.1, 20.2 of Text)

Transport Layer:

Introduction: Transport Layer Services, Connectionless and Connection oriented Protocols, Transport Layer Protocols: Simple protocol, Stop and wait protocol, Go-BackN Protocol, Selective repeat protocol, Piggybacking (23.1, 23.2.1, 23.2.2, 23.2.3, 23.2.4, 23.2.5 of Text)

Transport-Layer Protocols in the Internet:

User Datagram Protocol: User Datagram, UDP Services, UDP Applications, Transmission Control L1, L2, L3 Protocol: TCP Services, TCP Features, Segment, Connection, State Transition diagram, Windows in TCP, Error control, TCP congestion control. (24.2, 24.3.1, 24.3.2, 24.3.3, 24.3.4, 24.3.6, 24.3.8, 24.3.9 of Text)

*Note: Exclude FSMs for CIE and SEE

Application Layer:

Introduction: providing services, Application- layer paradigms, Standard Client – Server Protocols: Hyper Text Transfer Protocol, FTP: Two connections, Control Connection, Data Connection, Electronic Mail: Architecture, Domain Name system: Name space, DNS in internet, Resolution, DNS Messages, Registrars, DDNS, security of DNS. (25.1, 26.1.2, 26.2, 26.3, 26.6 of Text) Quality of Service (30.1, 30.2.) Network Security (31.1)

Course outcomes (Course Skill Set)

At the end of the course the student will be able to:

1. Understand the concepts of networking thoroughly.

2. Identify the protocols and services of different layers.

3. Distinguish the basic network configurations and standards associated with each network.

4. Discuss and analyse the various applications that can be implemented on networks.

Assessment Details (both CIE and SEE)

• The weightage of Continuous Internal Evaluation (CIE) is 50% and for Semester End Exam (SEE) is 50%.
• The minimum passing mark for the CIE is 40% of the maximum marks (20 marks out of 50).
• A student shall be deemed to have satisfied the academic requirements and earned the credits allotted to each subject/ course if the student secures not less than 35% (18 Marks out of 50) in the semester-end examination (SEE), and a minimum of 40% (40 marks out of 100) in the sum total of the CIE (Continuous Internal Evaluation) and SEE (Semester End Examination) taken together.

Continuous Internal Evaluation:

Three Unit Tests each of 20 Marks (duration 01 hour)

1. First test at the end of 5th week of the semester

2. Second test at the end of the 10th week of the semester

3. Third test at the end of the 15th week of the semester

Two assignments each of 10 Marks

4. First assignment at the end of 4th week of the semester

5. Second assignment at the end of 9th week of the semester Group discussion/Seminar/quiz any one of three suitably planned to attain the COs and POs for 20 Marks (duration 01 hours)

6. At the end of the 13th week of the semester

The sum of three tests, two assignments, and quiz/seminar/group discussion will be out of 100 marks and will be scaled down to 50 marks (to have less stressed CIE, the portion of the syllabus should not be common /repeated for any of the methods of the CIE. Each method of CIE should have a different syllabus portion of the course).

CIE methods /question paper is designed to attain the different levels of Bloom’s taxonomy as per the outcome defined for the course.

Semester End Examination:

Theory SEE will be conducted by University as per the scheduled timetable, with common question papers for the subject (duration 03 hours)

1. The question paper will have ten questions. Each question is set for 20 marks.

2. There will be 2 questions from each module. Each of the two questions under a module (with a maximum of 3 sub-questions), should have a mix of topics under that module.

The students have to answer 5 full questions, selecting one full question from each module. Marks scored out of 100 shall be proportionally reduced to 50 marks

Suggested Learning Resources:

Text Books: Forouzan, “Data Communications and Networking”, 5th Edition, McGraw Hill, 2013, ISBN: 1-25- 906475-3.

Reference Books:

1. James J Kurose, Keith W Ross, “Computer Networks”, Pearson Education.

2. Wayne Tomasi, “Introduction to Data Communication and Networking”, Pearson India, 1st edition.

3. Andrew Tannenbaum, “Computer Networks”, Prentice Hall.

4. William Stallings, “Data and Computer Communications”, Prentice Hall.