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(These are typical guidance values — always check the specific CML release notes for exact minimums.)
| Issue | Solution | |-------|----------| | No REFPLAT visible in portal | Verify CML license assignment in Smart Account | | Boot fails after ISO mount | Increase VM RAM to 4+ GB, enable virtualization extensions | | License not recognized | Re-license via license smart register or local file |
Compare the output string to the hash listed on Cisco’s website. If they match, your download is safe to use. How to Install and Mount the New Refplat ISO
, formerly known as VIRL, is the industry-standard network simulation platform for network engineers, architects, and students pursuing certifications like CCNP and CCIE. The core of CML’s capability lies in its Reference Platform ISO (refplat ISO) —a massive collection of pre-packaged network OS images (IOSv, NX-OS, IOS-XR, Catalyst SD-WAN, etc.) required to build virtual topologies. cisco cml refplat iso download new
"Failed: Error importing topology file: Node n0 R1 definition iosv not found" or similar node not found errors when trying to start a lab.
: Search for "Modeling Labs" or follow the path: Cloud and Systems Management > Network Modeling > Modeling Labs .
: Navigate to My Account > My Orders and find your active CML subscription (Personal, Personal Plus, or Free). (These are typical guidance values — always check
You must have an active CML-Personal or CML-Enterprise license.
Enterprise and Personal tiers. Includes full enterprise routing and switching nodes (CAT9000v, IOS XRv, NX-OS 9000). ( refplat-YYYYMMDD-freetier-iso.zip ) Significantly smaller
Here are some additional tips and tricks to help you get started with CML Refplat: The core of CML’s capability lies in its
Top Rated Answers. Karlo Bobiles. 6 years ago. Hello chris.happel-home, Please log into your Cisco Learning Network Store Account: Cisco Learning Network Downloading Cisco Modeling Labs reference platform ISO file
Always download both the controller and the platform images:
When you download a RefPlat ISO, you are getting a collection of pre-configured virtual machine (VM) images for various Cisco devices, including routers (IOSv, IOS XRv), switches (IOSvL2), firewalls (ASAv), and more. Without these images, you cannot start any lab simulations in CML—you would only see basic nodes like "Unmanaged Switch" and "External Connector". The RefPlat ISO is a mandatory component that must be attached to your CML server during the initial setup.
Within the CML download section, you will see various files available, including: CML ISO / OVA (The base installation) (The images you need) Step 4: Download the File
