In conclusion, Cisco CML Refplat is a powerful virtualized networking platform that can help streamline your network administration and engineering tasks. By following the steps outlined in this article, you can download the CML Refplat ISO, install and configure the platform, and start creating virtual network topologies in no time. With its robust features, intuitive interface, and extensive community support, CML Refplat is an excellent choice for network administrators and engineers looking to take their skills to the next level.
For production or larger-scale environments, you might install CML directly on supported Cisco UCS hardware.
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The RefPlat file is downloaded as a ZIP archive (e.g., refplat-20241016-fcs-iso.zip ). Before you can copy it to CML, you must extract the ISO file itself from the ZIP archive. After extraction, you will have a file that ends with .iso . cisco cml refplat iso download new
Even with a new ISO, users encounter problems. Here are solutions for the top 5 issues related to the download/install process:
Copy the or SHA512 checksum listed on Cisco’s download page. Run a hash check on your local machine:
Cisco does not distribute the REFPLAT ISO through public torrents or third-party websites. You must have a valid entitlement. There are two primary legal ways: In conclusion, Cisco CML Refplat is a powerful
Large ISO files can sometimes get corrupted during download. For example, the 20250718 version of the supplemental reference platform ISO was known to be corrupt and was later replaced with a 20250724 version.
From recent downloads (late 2025 to 2026), the RefPlat ISO files for CML follow a consistent naming convention that makes it easy to identify their purpose and age. A typical filename for the standard ISO is refplat-20241016-fcs.iso , and for the supplemental ISO, it's refplat-20240322-supplemental-iso.zip .
The RefPlat ISO I downloaded is corrupt or incomplete. If you share with third parties, their policies apply
┌──────────────────────────────────────┐ │ Cisco Modeling Labs (CML) │ │ ┌─────────────────┐ ┌────────────┐ │ │ │ Controller App │ │Refplat ISO │ │ │ │ (Dashboard, UI) │ │(IOSv, NXOS)│ │ │ └────────┬────────┘ └─────┬──────┘ │ └───────────┼────────────────┼─────────┘ ▼ ▼ [Functional Virtual Lab Environment] What is Included in the New Refplat ISO Layout?
As mentioned, some releases (like 2.7) divide images between a standard ISO and a supplemental ISO to manage download size.
The new CML RefPlat ISO is available through Cisco’s official portal to entitled users. Always verify file integrity, check release notes for version-specific changes, and ensure your subscription is active before attempting download. For lab continuity, archive the ISO and its matching device import package.