Cisco Cml Refplat Iso Download New May 2026

After downloading:

# Mount ISO
mount -o loop cml-refplat-2.8.1.iso /mnt

Last updated: October 2025 – reflects CML REFPLAT version 2.7.2.




By following this guide, you are now equipped to securely download, install, and run the new Cisco CML REFPLAT ISO. Happy labbing


The Cisco Modeling Labs (CML) Reference Platforms (RefPlat) ISO is the backbone of any serious network simulation environment. This file contains the actual Cisco IOS images—such as IOSv, NX-OS, and ASAv—that run on top of the CML engine. If you are looking for the latest "cisco cml refplat iso download new" options, this guide covers everything from access requirements to installation. Why the RefPlat ISO is Essential


CML is sold as a platform (the dashboard and engine) and the node definitions (the software images). Without the Reference Platform ISO, your CML installation is just an empty shell. The "new" versions of this ISO are significant because they include: Updated IOS-XE (Cat8000v) images. New SD-WAN controller nodes. Optimized NX-OS 9000v footprints. Security patches for ASAv and Firepower (FTDv). How to Access the Latest Download


To get the official, newest RefPlat ISO, you must follow the authorized Cisco channels.


Cisco Learning Network Store: Most individual users obtain CML through a Personal or Personal Plus license. Once purchased, your access is tied to your Cisco Connection Online (CCO) ID.


Software Central: Navigate to the Cisco Software Download portal. Search for "Cisco Modeling Labs" and look for the "Reference Platforms" section.


Check the Version: Ensure the ISO version matches your CML controller version (e.g., CML 2.7 requires the 2.7.x RefPlat ISO for full compatibility). Step-by-Step: Adding the New ISO to CML cisco cml refplat iso download new


Once you have downloaded the large .iso file (often exceeding 30GB), you need to mount it to your CML virtual machine. For VMware ESXi/Workstation: Upload the ISO to your datastore or local folder. Edit the CML VM settings. Select the CD/DVD drive and "Connect at Power On." Path the drive to your new RefPlat ISO. For Bare Metal:


Copy the ISO to the /var/local/virl2/dropfolder directory via SCP.


Use the CML system administration cockpit (port 9090) to mount the file permanently to the /var/local/virl2/refplat directory. What’s New in Recent RefPlat Releases?


Cisco has transitioned from the older "VIRL" style images to modern, 64-bit virtual platforms. The newest downloads typically feature: IOSv & IOSv-L2: Stable images for R&S labs. CML-IOS-XRv 9000: For service provider simulations.


Ubuntu Nodes: Pre-configured Linux nodes for testing automation scripts (Python, Ansible) within the topology.


Unmanaged Switches: Low-resource nodes for simple connectivity. Troubleshooting Common Download Issues


Slow Download Speeds:The RefPlat ISO is massive. Use a download manager that supports multi-threading or "resume" capabilities, as Cisco’s servers may timeout on standard browser downloads.


Verification:Always check the SHA512 checksum provided on the Cisco download page against your local file. A corrupted ISO will cause "Node Definition" errors inside CML, preventing your virtual routers from booting. After downloading: # Mount ISO mount -o loop


Disk Space:Ensure your CML host has at least 50GB of free space before attempting the download and extraction. The ISO stays mounted, so it consumes storage permanently.


By keeping your CML Reference Platform ISO updated, you ensure that your lab environment mirrors the latest features and command syntax found in modern production data centers and enterprise networks.




The new CML RefPlat ISO is available exclusively 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.




Attachments (not shown):



Next action: If download fails despite valid subscription, open TAC case under “CML – Licensing & Download” component.


Cisco Modeling Labs (CML) requires a Reference Platform (refplat) ISO


to provide the virtual machine images (such as IOS, ASA, and Ubuntu) used in lab simulations. For current deployments (e.g., version 2.9), you must download this ISO alongside the controller OVA or bare-metal image. How to Download the New Refplat ISO


The download path depends on whether you are using the Personal, Enterprise, or the newer Free Tier version. For CML-Personal: Log in to your account at the Cisco Learning Network Store Find your active order in This redirects you to a specific page on software.cisco.com that bypasses general service contract requirements. Select the latest release (e.g., v2.9) and locate the Cisco Modeling Labs reference platform .iso file For CML-Free Tier: Register at the CML-Free Sign-up page Cisco Software Central and log in with your CCO ID. Search for "Modeling Labs" and select the Download the reference image ISO file (often provided as a that must be unzipped before use). For CML-Enterprise/Education: Navigate directly to Cisco Software Central (SWC) Cloud and Systems Management Network Modeling Modeling Labs Choose the latest release to find the ISO. Recent Updates in Refplat ISO (v2.9) By following this guide, you are now equipped


The latest reference platform images introduced significant additions for network testing: New Node Types: Includes support for IOL (IOS on Linux)


images, which are more resource-efficient than traditional virtual images. Expanded Library: The supplemental ISO now includes Catalyst 9800-CL Cloud Wireless Controller, Splunk Enterprise Docker Support:


Newer versions now facilitate the use of container images within labs. Installation Best Practices Copy Refplat ISO to Disk - Cisco Modeling Labs v2.9


Before attempting to download, ensure you have the following:







After booting, you must license CML.




  • Once licensed, navigate to System → Images. You will see that no node images are installed yet. You must separately download IOSv, IOSvL2, ASAv, etc. from Cisco Software Central.
    • 

  • Add node images via the web UI: Images → Add Image → Upload QEMU image file (e.g., iosv-156-2T.bin).
    • 


    Now you are ready to build your first lab.
    

    

    In the world of network engineering, certification, and infrastructure design, having a reliable virtual lab environment is no longer a luxury—it’s a necessity. Cisco’s Cisco Modeling Labs (CML), formerly known as VIRL (Virtual Internet Routing Lab), stands as the gold standard for network simulation. At the core of this powerful platform lies the REFPLAT ISO (Reference Platform Image).
    

    If you have recently searched for the term "cisco cml refplat iso download new" , you are likely looking for the latest version of this foundational image. Whether you are a CCIE candidate, a network architect, or a DevOps engineer testing automation, understanding how to obtain, deploy, and manage the new CML REFPLAT ISO is critical.
    

    This article provides a deep dive into everything you need to know: what the REFPLAT ISO is, what is new in the latest release, where to legally download it, system requirements, installation steps, and troubleshooting tips.
    

    


  • When integrating with real network gear, consider VLAN tagging, physical NIC bonding, and firewall/NAT policies to avoid address collisions.
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