A complete CML installation relies on two distinctly separate software components:

Use a checksum utility (like Windows PowerShell Get-FileHash or Mac/Linux shasum ) to calculate the hash of your downloaded file.

If you are looking to get the latest , we have put together a comprehensive guide to walk you through the process, requirements, and best practices. What is Cisco CML and Why Do You Need the Refplat ISO?

If your calculated hash matches the one on the Cisco website, your file is perfectly intact. If it doesn't, you must re-download the ISO. How to Apply the New Refplat ISO in CML

The Refplat ISO is massive, and an incomplete or corrupted download will lead to deployment failures when you attempt to spin up virtual routers.

Copy the or SHA512 checksum listed on Cisco’s download page. Run a hash check on your local machine:

). Verify your CML VM has enough storage allocated before upgrading, especially when including supplementary ISOs.

Always download both the controller and the platform images:

Unzip the downloaded file. Inside, you will find the actual .iso file. Mount this .iso file to your CML VM, not the .zip file.

: Enterprise-grade routing and SD-WAN platforms.