What is a Subnet? A subnet breaks a large network into smaller, manageable segments, improving performance, security, and IP utilization. From home networks to enterprise setups—subnetting is the backbone of efficient network design. 💡 Why Every Network Engineer Must Know Subnetting: ✔ Better traffic management ✔ Stronger network security ✔ Reduced broadcast domains ✔ Essential for VLANs, routing & WAN design ✔ Mandatory for CCNA, CCNP & SD-WAN learners If you can master subnetting, you can mas

Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References