| Parameter | Value | Description |
|---|
Cloud CIDR & Network Capacity Planner
Advanced Network Capacity & CIDR Planning
Designing a robust network requires more than just assigning IP addresses. Whether you are building an on-premise data center, a private cloud, or deploying across public cloud infrastructure, understanding the relationship between address space, packet processing limits (PPS), and protocol overhead is essential for performance.
Flexible CIDR and Reserved IP Calculation
In every network subnet, certain IP addresses are reserved for protocol functions. In a standard network, 2 IPs are reserved (Network Address and Broadcast Address). However, cloud environments often reserve more. This calculator allows you to define the Reserved IPs manually to match your specific environment (e.g., 5 for AWS/Azure, 3 for other software-defined networks).
Standard Formula:
Throughput vs. Goodput
Bandwidth tells you how much data can pass through the wire, but "Goodput" tells you how much of that is your actual data. Protocol headers (TCP, IP, and especially VPN headers like IPSec) consume space in every packet.
Efficiency Calculation:
A high overhead combined with small packets (like VoIP) results in significant bandwidth loss, which this tool helps you visualize.
Packets Per Second (PPS) Importance
Network devices have physical limits on how many packets they can route per second. High bandwidth with small packets generates millions of packets per second (Mpps), which can overwhelm firewalls even if the link is not saturated in terms of Mbps.