If you are deploying CML for the very first time using VMware Workstation or ESXi, you can map the ISO directly to the virtual machine before powering it on.
: Enterprise-grade routing and SD-WAN platforms.
Starting around CML 2.7, standard ISOs include IOL nodes (L3 router and L2/L3 switch) running IOS XE 17.12.01. cisco cml refplat iso download new
In most cases, you will need to download both the "normal" and "supplemental" refplat ISOs. You can copy them to your CML instance sequentially. CML is intelligent enough to merge the node definitions and images from all mounted ISOs onto its local disk, giving you a complete palette of devices to work with.
The free version of CML also relies on a refplat ISO, though it includes a curated set of images like IOL, IOL-L2, and ASAv, perfect for learners. CML-Free is limited to 5 concurrent nodes, but it's a fantastic way to get started. If you are deploying CML for the very
: Files are available via the Cisco Learning Network Store under your active order or through the Cisco Software Central site.
Choose the most recent version available (e.g., or higher) from the left-hand menu. In most cases, you will need to download
If you go directly to software.cisco.com and search for "Cisco Modeling Labs," you will likely see the CML-Enterprise page and get a " service contract required " error. This is a very common mistake. For CML-Personal, you must be redirected via the Learning Network Store.
: This can happen if the ISO was corrupted during download (hash mismatch) or if your system lacks the RAM/CPU capacity to provision the node. Verify your file hash and check the CML Dashboard to ensure you haven't exhausted your host's physical memory resource pools.