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Computer Networks Syllabus (CSC 263) – TU BSc CSIT 4th Semester

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Computer Networks Syllabus (CSC 263) – TU BSc CSIT 4th Semester

Official TU BSc CSIT Computer Networks (CSC 263) syllabus for Fourth Semester — OSI layers, IPv4/IPv6, routing, protocols, and lab works.

Sep 26, 2026
14,768

Tribhuvan University
Institute of Science and Technology
Bachelor of Science in Computer Science and Information Technology

Course Title: Computer NetworksFull Marks: 60 + 20 + 20
Course no: CSC263Pass Marks: 24 + 8 + 8
Semester: IVCredit Hours: 3
Nature of course: Theory + Lab

Course Description: This course introduces concept of computer networking and discuss the different layers of networking model.

Course Objective: The main objective of this course is to introduce the understanding of the concept of computer networking with its layers, topologies, protocols & standards, IPv4/IPv6 addressing, Routing and Latest Networking Standards.

Course Contents

Unit 1. Introduction to Computer Network (6 Hrs.)

  • Definitions, Uses, Benefits
  • Overview of Network Topologies (Star, Tree, Bus, …)
  • Overview of Network Types (PAN, LAN, CAN, MAN, …)
  • Networking Types (Client/Server, P2P)
  • Overview of Protocols and Standards
  • OSI Reference Model
  • TCP/IP Models and its comparison with OSI
  • Connection and Connection-Oriented Network Services
  • Internet, ISPs, Backbone Network Overview

Unit 2. Physical Layer and Network Media (4 Hrs.)

  • Network Devices: Repeater, Hub, Switch, Bridge, Router
  • Different types of transmission medias (wired: twisted pair, coaxial, fiber optic; Wireless: Radio waves, micro waves, infrared)
  • Ethernet Cable Standards (UTP & Fiber cable standards)
  • Circuit, Message & Packet Switching
  • ISDN: Interface and Standards

Unit 3. Data Link Layer (8 Hrs.)

  • Function of Data Link Layer (DLL)
  • Overview of Logical Link Control (LLC) and Media Access Control (MAC)
  • Framing and Flow Control Mechanisms
  • Error Detection and Correction techniques
  • Channel Allocation Techniques (ALOHA, Slotted ALOHA)
  • Ethernet Standards (802.3 CSMA/CD, 802.4 Token Bus, 802.5 Token Ring)
  • Wireless LAN: Spread Spectrum, Bluetooth, Wi-Fi
  • Overview Virtual Circuit Switching, Frame Relay & ATM
  • DLL Protocol: HDLC, PPP

Unit 4. Network Layer (10 Hrs.)

  • Introduction and Functions
  • IPv4 Addressing & Sub-netting; Classful and Classless Addressing
  • IPv6 Addressing and its Features; IPv4 and IPv6 Datagram Formats; Comparison of IPv4 and IPv6 Addressing
  • Example Addresses: Unicast, Multicast and Broadcast
  • Routing: Introduction and Definition; Types of Routing (Static vs Dynamic, Unicast vs Multicast, Link State vs Distance Vector, Interior vs Exterior); Path Computation Algorithms: Bellman Ford, Dijkstra’s; Routing Protocols: RIP, OSPF & BGP
  • Overview of IPv4 to IPv6 Transition Mechanisms
  • Overview of ICMP/ICMPv6 & NATing
  • Overview of Network Traffic Analysis
  • Security Concepts: Firewall & Router Access Control

Unit 5. Transport Layer (6 Hrs.)

  • Introduction, Functions and Services
  • Transport Protocols: TCP, UDP and Their Comparisons
  • Connection Oriented and Connectionless Services
  • Congestion Control: Open Loop & Closed Loop, TCP Congestion Control
  • Traffic Shaping Algorithms: Leaky Bucket & Token Bucket
  • Queuing Techniques for Scheduling
  • Introduction to Ports and Sockets, Socket Programming

Unit 6. Application Layer (7 Hrs.)

  • Introduction and Functions
  • Web & HTTP
  • DNS and the Query Types
  • File Transfer and Email Protocols: FTP, SFTP, SMTP, IMAP, POP3
  • Overview of Application Server Concepts: Proxy, Web, Mail
  • Network Management: SNMP

Unit 7. Multimedia & Future Networking (4 Hrs.)

  • Overview Multimedia Streaming Protocols: SCTP
  • Overview of SDN and its Features, Data and Control Plane
  • Overview of NFV
  • Overview of NGN

Laboratory Works

The lab activities under this subject should accommodate at least the following:

  • Understanding of Network equipment, wiring in details
  • OS (Ubuntu/CentOS/Windows) installation, practice on basic Networking commands (ifconfig/ipconfig, tcpdump, netstat, dnsip, hostname, route…)
  • Overview of IP Addressing and sub-netting, static IP setting on Linux/Windows machine, testing
  • Introduction to Packet Tracer, creating of a LAN and connectivity test in the LAN, creation of VLAN and VLAN trunking
  • Basic Router Configuration, Static Routing Implementation
  • Implementation of Dynamic/interior/exterior routing (RIP, OSPF, BGP)
  • Firewall Implementation, Router Access Control List (ACL)
  • Packet capture and header analysis by Wireshark (TCP, UDP, IP)
  • DNS, Web, FTP server configuration (shall use Packet Tracer, GNS3)
  • Case Study: Network Operation Center Visit (ISP, Telecom, University Network)
  • LAB Exam, Report and VIVA

Text Books

  1. Data Communications and Networking, 4th Edition, Behrouz A. Forouzan. McGraw-Hill
  2. Computer Networking: A Top Down Approach Featuring The Internet, 2nd Edition, Kurose James F., Ross W. Keith, Pearson Education Asia

About Tribhuvan University

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