Nxosv9k-7.0.3.i7.4.qcow2 Plugin
qemu-system-x86_64 -enable-kvm -m 16384 -smp 4 \
-drive file=nxosv9k-7.0.3.i7.4.qcow2,if=virtio,format=qcow2 \
-netdev tap,id=net0,ifname=tap0,script=no,downscript=no -device virtio-net-pci,netdev=net0 \
-nographic -serial mon:stdio
The most common environment for this plugin is EVE-NG Community or PNETLab. Here is a step-by-step guide.
If you are studying for your CCIE Data Center or testing EVPN multi-homing, the 7.0.3.I7.4 image paired with the correct plugin is the most reliable virtual Nexus you can run today.
Just remember: The .qcow2 is the engine, but the plugin is the chassis. Don't neglect it.
Have you hit a brick wall with a newer NXOS version? Drop a comment below—let's debug those PCI bus errors together.
The nxosv9k-7.0.3.i7.4.qcow2 file is a virtual disk image for the Cisco Nexus 9000v (NX-OSv 9000) switch, designed for network simulation environments like EVE-NG, GNS3, and PNETLab. It allows network engineers to simulate a Data Center switch environment to test features like VXLAN, OTV, and NX-API without physical hardware. Installation Guide for EVE-NG
To use this image in EVE-NG, you must follow specific directory and naming conventions.
Prepare the Directory: Create a folder on your EVE-NG server with the exact required prefix: mkdir /opt/unetlab/addons/qemu/nxosv9k-7.0.3.I7.4 nxosv9k-7.0.3.i7.4.qcow2 plugin
Upload and Rename: Transfer the .qcow2 file to this directory and rename it to sataa.qcow2 (or virtioa.qcow2 depending on version requirements): mv nxosv-final.7.0.3.I7.4.qcow2 sataa.qcow2
Fix Permissions: Run the EVE-NG permission utility to ensure the platform can execute the image: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions Hardware Requirements:
RAM: At least 8 GB (8192 MB) is recommended for stable operation. CPU: 1–2 vCPUs. Initial Boot & Configuration
When you first start the node, it will prompt for several setup options.
Abort Auto Provisioning: Answer yes to skip POAP (PowerOn Auto Provisioning) and enter normal setup.
Secure Password: You can choose no to use simpler passwords for lab environments. qemu-system-x86_64 -enable-kvm -m 16384 -smp 4 \ -drive
Default Credentials: The default login is typically admin / admin.
Set Boot Variable: After the first login, verify the internal binary name and set the boot variable so it reboots correctly:
dir bootflash: (Find the .bin file, e.g., nxos.7.0.3.I7.4.bin) conf t boot nxos bootflash:nxos.7.0.3.I7.4.bin copy running-config startup-config Key Use Cases Cisco Nexus 9000v switch - - EVE-NG
For deploying the Cisco Nexus 9000v (specifically the nxosv9k-7.0.3.i7.4.qcow2 image) in a virtual lab environment like
, you can use the following technical guide. This image is a resource-intensive virtual switch designed for simulating data center networking features like VXLAN and MP-BGP EVPN. 1. Resource Requirements
The Nexus 9000v is a "heavy" node and requires significant host resources. Using fewer than the recommended specs may cause the image to fail during boot or crash frequently. , Recommended (for basic boot), Recommended 8GB - 12GB for feature-rich labs. CPU Feature The most common environment for this plugin is
: Requires physical CPU cores rather than just threads for optimal performance. 2. EVE-NG Setup Procedure To add this specific image to , follow these directory naming and file preparation steps: Create the Image Directory
Log in to your EVE-NG CLI (via SSH) and create a directory following the exact naming convention: mkdir /opt/unetlab/addons/qemu/nxosv9k-7.0.3.I7.4/ Upload and Rename Upload the nxosv-final.7.0.3.I7.4.qcow2 file to the new directory using a tool like Rename the file to exactly sataa.qcow2 virtioa.qcow2 depending on your version, though is standard for 7.x). mv nxosv-final.7.0.3.I7.4.qcow2 sataa.qcow2 Fix Permissions
Run the following command to ensure EVE-NG can execute the file: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions 3. First Boot Configuration
On the first power-on, the device will prompt for initial setup. Use these responses to bypass auto-provisioning and enter the CLI quickly: Abort Auto Provisioning? Enforce secure password? Admin Password : Set your own (e.g., Enter basic configuration dialog? 4. Critical Boot Variable Fix To ensure the node boots correctly after a restart, you set the boot variable in global configuration mode: switch# conf t switch(config) # boot nxos bootflash:nxos.7.0.3.I7.4.bin switch(config) switch# copy run start Use code with caution. Copied to clipboard 5. Troubleshooting Common Issues : If the image loops, ensure you have allocated at least 8GB of RAM Grayed Out Node
: If the node is grayed out in the EVE-NG "Add Node" list, the folder name or filename ( sataa.qcow2 ) is likely incorrect. No Console Output
: Ensure you are using the correct console type (Telnet) and that the image has finished its initial long boot process (can take 3-5 minutes). VXLAN or vPC topology configuration to test on this specific image version? Cisco Nexus 9000v switch - - EVE-NG
Here’s a solid, technical post about the nxosv9k-7.0.3.i7.4.qcow2 plugin, written as if for an internal wiki, DevOps forum, or lab documentation.
While 7.0.3.I7.4 is excellent, the networking world evolves. Should you upgrade?