The most significant new helpful feature related to the Cisco Modeling Labs (CML) "refplat" (Reference Platform) ISO is the . This allows you to run routers and switches as lightweight processes rather than full virtual machines (VMs), drastically reducing CPU and memory consumption while enabling faster boot times. Key Features of New Refplat ISO Releases
Log in with your Cisco.com credentials (linked to a Smart Account).
Search for "Cisco Modeling Labs" or "CML".
Filter by “OS: ISO” and look for the latest release, e.g., cml-refplat-2.7.2.iso.
Click Download. (File size typically 8–12 GB).
Supported deployment targets
Performance Overhaul – The new REFPLAT uses a more efficient virtualization layer, reducing CPU overhead by up to 30% in large topologies (e.g., 100+ nodes).
UI Redesign – The new HTML5 web interface is faster, offers dark mode, and has an improved topology editor.
Native Automation Support – Pre-installed cmlpy (Python library) and updated Postman collections for interacting with the API.
External Connectivity – Easier setup for bridging labs to physical networks via macvlan or tap interfaces.
Security Updates – Newer Linux kernel, hardened SSH, and updated certificate management.
Edge Node Support – Improved for integrating with public cloud instances (AWS, Azure) using VPN tunnels.
What is Cisco CML and Why Does the REFPLAT ISO Matter?
Navigate to Cisco Software Central and log in with your CCO ID.
Go to VM Settings → System → Processor → Enable VT-x/AMD-V and Nested Paging.
1. Log into Cisco Software Central
Use the ISO file in CML:
Cisco Cml Refplat Iso Download New [repack] -
introduction of native IOS on Linux (IOL) images
The most significant new helpful feature related to the Cisco Modeling Labs (CML) "refplat" (Reference Platform) ISO is the . This allows you to run routers and switches as lightweight processes rather than full virtual machines (VMs), drastically reducing CPU and memory consumption while enabling faster boot times. Key Features of New Refplat ISO Releases
Log in with your Cisco.com credentials (linked to a Smart Account).
Search for "Cisco Modeling Labs" or "CML".
Filter by “OS: ISO” and look for the latest release, e.g., cml-refplat-2.7.2.iso.
Click Download. (File size typically 8–12 GB).
Supported deployment targets
Performance Overhaul – The new REFPLAT uses a more efficient virtualization layer, reducing CPU overhead by up to 30% in large topologies (e.g., 100+ nodes).
UI Redesign – The new HTML5 web interface is faster, offers dark mode, and has an improved topology editor.
Native Automation Support – Pre-installed cmlpy (Python library) and updated Postman collections for interacting with the API.
External Connectivity – Easier setup for bridging labs to physical networks via macvlan or tap interfaces.
Security Updates – Newer Linux kernel, hardened SSH, and updated certificate management.
Edge Node Support – Improved for integrating with public cloud instances (AWS, Azure) using VPN tunnels.
What is Cisco CML and Why Does the REFPLAT ISO Matter?