Course

Unit I

Evolution of Computer Networking – Types of Networks – networks topologies – Protocols Standards, World Wide Web
Network Devices-The OSI reference model- TCP/IP Reference Model. Physical Layer: transmission media- Analog Transmission- Digital transmission

Unit II

Data Link Layer Design Issues-Services provided to the Network Layer-Framing-Error Control-Flow Control- Error Detection and Correction- Elementary Data Link Protocols- Sliding Window Protocols- Multiple Access Protocols, MAC Address.

Unit III

Introduction to Network Layer – Services – Circuit Switching Vs Packet Switching-Packet Switched Networks-Types of Routing-routing algorithms- congestion control algorithms- Network Protocols-IP- IPV4, IPV6, Subnets, Gateways- Congestion Avoidance in Network Layer.

Unit IV

The Transport Services – Services provided to the upper layers –Elements of transport Protocols –Internet Transport Protocols- Congestion Controls in Transport Layer, Application Layer: Domain Name System, and Hyper Text Transfer Protocol, Electronic mail, File Transfer Protocol, Remote login.

Lab Syllabus

• Networking Commands & Basics — ping, traceroute, arp, ipconfig/ifconfig, netstat, nslookup, route; intro to WWW and protocols.
• Packet Sniffing with Wireshark — Capture & analyze Ethernet, ARP, IP, ICMP, TCP, UDP; observe 3-way handshake and DNS lookup.
• Topologies & Devices (Simulator) — Build bus/star/ring in Packet Tracer; hub vs switch vs router behavior.
• Physical Layer & Media — Compare UTP/STP/coax/fiber; attenuation/bandwidth demo; encoding overview (NRZ/Manchester).
• Framing Techniques (Code) — Implement character count, byte stuffing, and bit stuffing.
• Error Detection & Correction (Code) — CRC-16/32, Internet checksum, Hamming(7,4)/(12,8) with single-bit error correction.
• Flow Control Protocols (Sim/Code) — Stop-and-Wait; Sliding Window: Go-Back-N & Selective Repeat with timing diagrams.
• MAC Protocols (Sim) — CSMA/CD, CSMA/CA, token passing; collision/backoff observation.
• Routing Algorithms (Code) — Dijkstra (link-state) & Distance Vector; compute shortest paths and convergence behavior.
• IP Addressing & Subnetting — Design subnets/VLSM for a campus; subnet masks, gateways, route summarization.
• Router Config: Static & Dynamic (Simulator) — Static routes, RIP v2, OSPF single area; verify with show ip route/pings.
• IPv6 Configuration — Global/link-local, SLAAC, dual stack; simple inter-VLAN + routing verification.
• Congestion Control (Sim/Trace) — Leaky/Token Bucket, RED/WRED concepts; observe TCP throughput under loss/latency.
• Socket Programming — TCP and UDP client/server; file transfer over TCP; measure RTT/throughput.
• Application Layer Protocols — DNS (nslookup/dig), HTTP (requests, headers), SMTP/IMAP/POP3 (telnet demo), FTP & SSH.

Course Objective(s)

• Build an understanding of the fundamental concepts of computer
• Familiarize the student with the basic taxonomy and terminology of the computer networking
• Students will be able to gain expertise in some specific areas of networking such as the design and maintenance of individual

Course Outcomes

CO-PO Mapping

1. Computer Networks (Fifth Edition) – Andrew S. Tanenbaum (Prentice Hall of India)
2. Computer Networking a Top-Down Approach (Fifth Edition)-James F. Kurose-Keith W. Ross (Pearson)
3. Computer Networks – Protocols, Standards and Interfaces (Second Edition) – Uyless Black (Prentice Hall of India Pvt. Ltd.)
4. Data communication and Networking (Fourth Edition)- Behrouz A Forouzan (Tata Mcgraw Hill)