Cisco Cml Refplat Iso Download New [top] Jun 2026

| Issue | Likely Cause | Solution | |-------|--------------|----------| | | High demand, CDN throttling | Use a download manager like wget -c on Linux or Download Master on Windows. | | ISO fails checksum | Corrupted download | Verify SHA256 hash from Cisco download page. Re-download if mismatch. | | "No bootable device" after install | BIOS boot order wrong | In hypervisor, ensure hard disk is first boot device, remove ISO. | | Web UI unreachable (HTTP 502) | Memory insufficient | Increase VM RAM to 16+ GB or reduce lab size. | | Node images won't start – KVM error | Nested virt disabled | For VMware: enable “Hardware Virtualization” in VM options. For VirtualBox: enable Nested VT-x. |

The latest version of Cisco Modeling Labs (CML) is , released in mid-2025. To get your lab environment running, you must download two separate components: the CML Controller (OVA) Reference Platforms (refplat ISO) Cisco DevNet Where to Download the Latest Files cisco cml refplat iso download new

: Because refplat ISO files are large, always verify the checksum before installation to avoid corrupted image deployments. | Issue | Likely Cause | Solution |

: CML-Free supports up to 5 nodes without a paid license. Paid versions require a Registration Token found in your Cisco account. Cisco Modeling Labs - Free - Cisco DevNet | | "No bootable device" after install |

: There is a "normal" Refplat (standard images) and a "supplemental" Refplat (SD-WAN, FMCv, FTDv). Most users need the normal version first. Quick Setup Checklist

for paid versions to manage large image sizes and specialized deployments: Cisco Learning Network Standard Refplat ISO : Includes core routing and switching images like IOSv, IOSv-L2, ASAv , and standard Linux host images. Supplemental Refplat ISO : Now includes images for Catalyst 9800-CL (Wireless Controller), Identity Services Engine (ISE) Splunk Enterprise Catalyst SD-WAN (formerly Viptela). Specialized ISE ISO : A dedicated ISO specifically for larger Cisco DevNet Key Platform Enhancements Docker Container Support