Network virtualization has transformed how engineers design, test, and validate data center topologies. At the heart of modern data center network simulation is the Cisco NX-OSv 9000 (NX-OSv 9K). To run this powerful platform inside virtual lab environments like GNS3, EVE-NG, or Cisco Modeling Labs (CML), you need a specific virtual disk image and configuration profile.
Move the .qcow2 file into that folder and rename it to sataa.qcow2 .
The plugin isn't just a file—it's a script or binary that handles:
is a "heavy" image. Ensure your machine has enough RAM and CPU.
is recommended to avoid performance issues when enabling multiple features. physical CPU cores rather than threads for stability. Disk Interface: nxosv9k-7.0.3.i7.4.qcow2 plugin
By understanding and using this powerful virtual platform, you are not just learning networking; you are preparing for its future.
If the interfaces in the CLI do not map correctly to the topology interfaces in your lab:
Future work on the Cisco NX-OSv 9K plugin could include:
The nxosv9k-7.0.3.i7.4.qcow2 platform remains a reliable tool for data center engineers looking to master NX-OS without access to physical Nexus switches. By adhering to the memory allocations and ensuring correct template setups in EVE-NG or GNS3, you can build complex, automated spine-and-leaf topologies right from your laptop or lab server. Move the
GNS3 utilizes an appliance marketplace template to simplify the installation of the nxosv9k-7.0.3.i7.4.qcow2 image.
Supports REST and SOAP APIs for network automation and programmability.
When prompted for "Abort Auto Provisioning and continue with normal setup?", type .
cd /opt/unetlab/addons/qemu/nxosv9k-7.0.3.I7.4/ mv nxosv-final.7.0.3.I7.4.qcow2 sataa.qcow2 is recommended to avoid performance issues when enabling
It is common for the virtual Nexus 9K to consume 100% of its assigned vCPU capacity during the first 5 minutes of booting. However, if CPU usage stays at 100% permanently, verify the following:
⚠️ Do distribute the .qcow2 directly – only download from Cisco.
: Access to NX-API, Python, Ansible, and Puppet integrations. System Requirements for the Virtual Appliance
: VXLAN EVPN basics, VXLAN bridging, and routing.