Marionnet vs NetSim

Marionnet is desktop software for defining, configuring, and running virtual computer networks without physical equipment. A single GNU/Linux host can emulate Ethernet networks containing computers, routers, hubs, switches, and cables. Networks can be reconfigured while running, their diagrams update dynamically, and a gateway can connect the virtual network to the host network. Guest machines use User Mode Linux, while VDE links them and emulates network equipment. The project says guests provide binary compatibility with user-level GNU/Linux software and can run graphical applications such as Wireshark through the host X server. Marionnet is free software under the GNU General Public License, priced at free, with no warranty stated. Linux installation requires x86 or x86_64, root access, and internet access; Windows and macOS users can use the VirtualBox appliance.

NetSim is a browser-based simulator of Cisco networking hardware and software for certification training. Its preconfigured labs provide the materials needed to complete each objective. Learners can compare their configurations with expected configurations to identify mistakes and get instant feedback, while lab progress and history sync between devices. Labs run in a web browser on modern internet-capable devices without installation; supported systems include Linux, macOS, and Windows. Network Designer lets users create custom labs with complex topologies, devices, connections, annotations, imported icons, and saved device configurations. It is included with the listed certification-specific plans. NetSim also includes the IOS images needed for its labs, without requiring additional licensing of those materials. Listed lab packs cost $29 a year and include 10 or 16 guided labs. Certification plans cost $179 a year and list between 70 and 101 guided labs. Online licenses last one year from purchase and can be used without usage limits during that period.