In the world of network virtualization and Cisco Virtual Internet Routing Lab (VIRL) / Cisco Modeling Labs (CML), file names like Vios-adventerprisek9-m.spa.159-3.m6.qcow2 are the gold standard for testing enterprise-grade routing features.
Full Layer 3 Functionality: Unlike some lighter images, this version supports complex routing and advanced features like MPLS and VRF.Stability: As a later maintenance release of the 15.x train, it has most major bugs patched.Resource Efficiency: It is designed to be lightweight, allowing you to run multiple instances on a standard laptop or server without exhausting RAM.CML Compatibility: This image is a standard part of the Cisco Modeling Labs distribution. How to Use the Image in Your Lab Download Vios-adventerprisek9-m.spa.159-3.m6.qcow2
: You must have a paid account. According to community discussions on , a CML license (formerly VIRL) typically costs around The Reference Platform ISO : Once you have a CML subscription, download the Reference Platform (RefPlat) ISO Extraction : Mount the ISO on your machine. The In the world of network virtualization and Cisco
Select the Vios-adventerprisek9-m.spa.159-3.m6.qcow2 file when prompted for the disk image. Set the RAM (usually 512MB to 1024MB is sufficient). EVE-NG (Emulated Virtual Environment Next Generation) According to community discussions on , a CML
Create a specific directory: /opt/unetlab/addons/qemu/vios-15.9-3-m6/. Upload the .qcow2 file into this directory. Rename the file to virtioa.qcow2 so EVE-NG recognizes it.