📏 CIDR

📖 What is CIDR?

CIDR (Classless Inter-Domain Routing) என்பது IP Address Allocation மற்றும் Route Aggregation செய்ய பயன்படும் நவீன Addressing Method ஆகும்.

🎯 Why CIDR?

✔ Efficient IP Usage

✔ Route Summarization

✔ Reduced Routing Tables

✔ Better Scalability

✔ Flexible Network Design

🌐 CIDR Notation

192.168.1.0/24

10.0.0.0/8

172.16.0.0/16

192.168.10.0/26

⚙ How CIDR Works?

CIDR Prefix Length மூலம் Network Portion மற்றும் Host Portion தீர்மானிக்கப்படுகிறது.

Class A, B, C என்ற பழைய முறை இல்லாமல் Flexible Allocation வழங்கப்படுகிறது.

📊 Common CIDR Values

/24 = 255.255.255.0

/25 = 255.255.255.128

/26 = 255.255.255.192

/27 = 255.255.255.224

/28 = 255.255.255.240

/30 = 255.255.255.252

🚀 Benefits of CIDR

✔ Conserves IP Addresses

✔ Simplifies Routing

✔ Supports VLSM

✔ Improves Network Efficiency

🌍 Real World Usage

Enterprise Networks

ISP Networks

Data Centers

Cloud Networks

Internet Routing

🎤 Interview Questions

What is CIDR?

Why is CIDR used?

What does /24 mean?

Difference between Classful and Classless Routing?

What is Route Summarization?

📝 Summary

CIDR என்பது IPv4 Address Space-ஐ திறமையாக பயன்படுத்தவும் Routing Table Size-ஐ குறைக்கவும் பயன்படும் முக்கியமான Networking Concept ஆகும்.

🚀 Next Lesson