Netsim Network Simulator 📥

. Researchers use it to test new protocols and "what-if" scenarios in a virtual environment at a lower cost than hardware prototypes. Boson NetSim

A modern use case for is practicing Python Network Automation (Netmiko, NAPALM, Ansible). Because Netsim provides a fully functional TCP/IP stack on the localhost (via local loopback ports), you can actually SSH into a Netsim router from your host PC’s terminal. netsim network simulator

Boson provides hundreds of pre-built labs with "grading" features to track progress. netsim network simulator