IT502 Unit 3
Computer Networks

Network Layer & IP Addressing

Unit 3 Study Material

Download detailed notes, important questions and PYQ analysis for IT502 Computer Networks Unit 3.

🔀 Routing

Routing selects the best path for packets to travel across networks.

🌍 IPv4 / IPv6

Internet Protocol provides logical addressing and packet delivery.

📡 ICMP

ICMP is used for error reporting and diagnostic messages in networks.

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Detailed Notes

Complete notes on network layer, logical addressing, classful and classless addressing, routing algorithms, IPv4 header, IPv4 datagrams, fragmentation, subnetting, supernetting, IPv6 and ICMP.

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Important Questions

Important RGPV questions on IPv4 header, subnet mask, subnetting, supernetting, Dijkstra algorithm, Bellman-Ford algorithm, fragmentation, IPv6 and ICMP message types.

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PYQ Analysis

Previous year questions and repeated topics from Computer Networks Unit 3 for quick exam revision.

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Unit 3 Topics

Network Layer
Logical Addressing
Classful Addressing
Classless Addressing
Packet Delivery
Packet Forwarding
Unicast Routing Protocols
Multicast Routing Protocols
Routing Algorithms
Least Cost Routing
Dijkstra Algorithm
Bellman-Ford Algorithm
Internet Protocol
IPv4 Header
IPv4 Datagrams
Encapsulation
Fragmentation
Reassembly
IP Routing
Subnet Addressing
Subnet Mask
Supernetting
Special IP Addresses
IPv6 Motivation
IPv6 Frame Format
IPv6 Addressing
ICMP
ICMP Header
ICMP Message Types