Cisco Modeling Labs (CML) is the solution that allows the setup of virtual network topologies for
non-production testing. It is a network simulation tool that enables users to design, build, visualize,
and launch virtual network models. This is particularly useful for testing, development, and
demonstration purposes without the need for physical hardware. CML provides an environment
where network topologies can be modeled using virtual instances of Cisco operating systems, such as
IOS, IOS-XE, IOS-XR, and NX-OS.
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•The Cisco Virtual Topology System (VTS) User Guide provides an overview of the VTS, which is
related to but distinct from CML, as it focuses on overlay management and provisioning for data
center networks1.
•Additional information about Cisco’s virtual networking solutions can be found in the Cisco VTS
User Guide, which details the provisioning of overlay networks2.
•For a comprehensive understanding of Cisco’s virtual networking capabilities, the Cisco Virtual
Topology System 2.5.2 All-in-One v1 documentation offers scenarios that include creating tenant
networks and attaching virtual machines, which are similar to the functionalities provided by CML3.
