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Wiki Article · Cinematic
Network Layer
Overview
🌟
Network Layer —
Quick Facts
📌
Property: Detail
🎯
Topic: Network Layer
⚡
Category: Networking / OSI Model
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OSI Layer Number: Layer 3
Topic 1
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Lead
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Network layer OSI (Open Systems Interconnection) model ki Layer 3 hai jo packets ko ek…
Topic 2
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📊
🔬
Infobox
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| Property | Detail | |---|---| | Topic | Network Layer | | Category | Networking / OSI…
Topic 3
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1. OSI Model Context
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Layer 1 (Physical) — cables,…
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Layer 2 (Data Link) — frames, MAC…
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Layer 3 (Network) — packets, IP…
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Layer 4 (Transport) — segments,…
Topic 4
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⚙️
🔬
💡
2. Key Functions
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Har device ko ek logical address…
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IP address network-specific hai —…
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MAC address (Layer 2)…
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IP address = Network ID + Host ID…
Topic 5
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3. IP Addressing
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32-bit address — 4 octets…
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Total ~4.3 billion unique addresses
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Address classes (historical): A,…
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Modern: CIDR (Classless…
Topic 6
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4. Routing
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Haan → directly deliver (Layer 2,…
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Nahi → packet default gateway…
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Destination Network — kaunsa…
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Next Hop — packet kisko forward…
Topic 7
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5. Routing Protocols
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IGP (Interior Gateway Protocol) —…
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EGP (Exterior Gateway Protocol) —…
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Internet par BGP sabse critical…
Topic 8
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6. Packet Journey Diagram
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`mermaid graph LR subgraph "Network A (192.168.1.0/24)" SRC[Source…
Topic 9
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7. Network Layer vs Other Layers
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| # | Aspect | Layer 2 (Data Link) | Layer 3 (Network) | Layer 4 (Transport) |…
Topic 10
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8. Fragmentation and Reassembly
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Har network link ki ek maximum…
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Standard Ethernet MTU: 1500 bytes
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Agar packet MTU se bada ho to…
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IPv6 me routers fragment nahi karte
Topic 11
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9. Network Layer in Cloud
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Virtual Private Cloud me route…
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Routes decide karti hain ke…
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Subnet-level route table…
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VPC ko internet se connect karne…
Topic 12
🛜
10. ICMP
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Error Reporting — destination…
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Diagnostics — ping (echo…
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Path MTU Discovery — "Packet Too…
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ICMP Echo Request bhejnaa…
Topic 13
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11. Glossary
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| # | Term | Definition | |---|---|---| | 1 | Packet | Network layer ki PDU — IP header +…
Topic 14
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📊
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14. Disclaimer
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Yeh article sirf educational aur informational purposes ke liye hai. Network layer…
Comparison
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7. Network Layer vs Other Layers
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1: PDU
⚖️
2: Address
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3: Scope
Diagram
📥
⚙️
🔬
💡
Visual Flow
📊
Diagram visualization — details in narration
Related Topics
See
Also
📖
Network — Computer networking…
🔗
Network_interface_card — NIC…
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Network_address_translation — NAT…
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Network_congestion — Traffic…
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Network_ACL — Network Access…
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TCP — Transport layer reliable…
Quick Quiz
🧠
QUIZ TIME
Quiz —
Question 1
Network Layer ka 'Topic' kya hai?
A
Network Layer
B
Koi specific nahi
C
Yeh define nahi kiya ja sakta
D
Sab kuch possible hai
Complete! 🎉
COMPLETE
Network Layer
Complete!
Aliens Wiki · HIEN · Cinematic Knowledge
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Network Layer Complete
➡️
Network — Computer networking…
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