Build, edit, and operate Cisco Modeling Labs (CML) virtual network topologies through the CML MCP server. Use whenever the user wants to create or modify a CML lab, add or connect network devices (routers, switches, firewalls, hosts), apply device configurations, start or stop nodes, run CLI commands against simulated devices, or arrange a topology on the canvas — even when phrased loosely as "build me a lab," "spin up a network," "set up an OSPF practice topology," or referencing an existing CML/VIRL lab. Prefer this skill over recalling CML API models from memory; the tool argument conventions are easy to get wrong.
2026-07-09