Mininet vs OpenSpeedTest

Mininet is a free network emulator that creates virtual hosts, switches, controllers and links on one machine. Its hosts run standard Linux network software on the real Linux kernel and network stack, while switches support OpenFlow. The project describes uses including research, development, learning, prototyping, testing and debugging, including experiments with SDN systems using OpenFlow and P4. A topology-aware and OpenFlow-aware command-line interface supports debugging and network-wide tests. Users can select parameterized topologies or create custom ones, and an extensible Python API supports network creation and experimentation. Mininet networks can connect to real networks, and code developed in Mininet can move to real systems with minimal changes. Installation options include a pre-packaged virtual machine, native installation from source and packages for recent Ubuntu or Debian 11 and later; Fedora support is experimental. Mininet depends on the Linux kernel, while its VM can run through VMware or VirtualBox on Mac, Windows and Linux. Its networks are constrained by a single server's CPU and bandwidth, and it cannot currently run non-Linux-compatible OpenFlow switches or applications. Mininet is released under a permissive BSD open source license.

OpenSpeedTest is a free, browser-based HTML5 tool for measuring internet and network performance. It measures sustained download and upload speeds, latency, jitter, and connection stability; the maker says its adaptive test supports connections from 1 Mbps to 10 Gbps and beyond. The browser test runs without an app, plugin, Flash, or Java installation. A responsive widget can be embedded in a website or app. URL parameters can launch a test automatically, run continuous stress tests, choose download, upload, or ping measurements, and set ping samples or parallel connections. For self-hosting, Docker images and source code are available for home, office, cloud, and enterprise environments. The setup guide calls for a public IPv4 or IPv6 address, a domain that resolves to the server, and an email address for Let's Encrypt setup. OpenSpeedTest supports HTTP/1.1, HTTP/2, and HTTP/3. The maker says Firefox is not recommended for stress tests longer than 10 minutes or speeds above 2.5 Gbps. The tool has been available since 2011 and is described for home networks, small offices, enterprise deployments, and infrastructure testing.