Broadcast Address Calculator: CIDR, Wildcard and Magic Number
This page has a broadcast address calculator. What’s it calculate? It gives you the answer to exactly one question: “Given a host and a subnet … Read More
JSCalc
Network Address Calculator – Find Subnet Network ID via AND
The secret identity of each IPv4 address are used by routers to route through Internet. What you’re seeing are those addresses as dotted decimals on … Read More
Subnet Range Calculator: Network, Broadcast, First & Last Host
The internet goes down, you plug in a new access point. You go look at the IP settings. No problems. The subnet mask appears correct … Read More
Usable Host Count Calculator: CIDR Prefix to Hosts and Subnet Sizing
Or perhaps you’ve got an apparently good network plan on paper, yet when you attempt to assign those addresses, nothing seem available. You’ve got plenty … Read More
CIDR to Subnet Mask Converter: Prefix to Dotted Mask Tool
This page is a CIDR to subnet mask converter. What does that mean? Basicly, it takes compact slash notation (like /24) and translates it into … Read More
TCP Window Size Calculator – Optimal Buffer and Scale Factor
This tool helps with one of the reasons why long distance file transfers are slow: the TCP window size. One reason is that the window … Read More
Bandwidth Delay Product Calculator – BDP & TCP Buffer Sizing
How fast can something move across a long-distance network? It’s a simple question with an answer provided by this page: the bandwidth delay product (BDP) … Read More
Packet Loss Impact Calculator: Mathis TCP Throughput Loss
Network performance is reduced by packet loss, something that can hide in plain sight even when your raw bandwidth look good. You might get a … Read More
Throughput Calculator: Data Rate, Goodput and Link Efficiency
Throughput is how much data really goes across your network. It is not what’s printed on the box. It’s rare for a 1000 Mbps link … Read More
Round Trip Time Calculator: RTT, Ping, Jitter and TCP Setup
The page is sitting on a server just twenty miles from you, yet it drags across the continent as you stare at a loading spinner … Read More