The nxosv-final.7.0.3.i7.4.qcow2 image is a virtualized version of the Cisco Nexus 9000 series switch, often used in lab environments like EVE-NG or GNS3. One of its most interesting and powerful features is the Guest Shell. The Feature: Guest Shell (NX-OS Release 7.0(3)I)
The Guest Shell is a secure, isolated Linux container (LXC) that runs alongside the NX-OS software. It allows you to run standard Linux applications and scripts directly on the switch without affecting the core network operating system.
Python Integration: It comes pre-installed with Python, allowing you to write scripts that interact directly with the switch's hardware and state using the NX-API.
System Access: From within the Guest Shell, you have access to the switch's bootflash and networking stack, making it an ideal tool for on-box automation and custom monitoring.
Resource Efficiency: In this specific release branch, the Guest Shell is lightweight, typically occupying only about 35 MB of RAM and 350 MB of bootflash when enabled.
Package Management: It includes a package manager (like yum or dnf depending on the underlying CentOS/Fedora base), so you can install additional Linux utilities for troubleshooting or data collection. Implementation Note for Lab Users
If you are deploying this specific image in EVE-NG, remember to rename the file to sataa.qcow2 and place it in a directory named nxosv9k-7.0.3.I7.4 to ensure the hypervisor recognizes it correctly. Cisco Nexus 9000v switch - - EVE-NG
The nxosv-final.7.0.3.I7.4.qcow2 file is a virtual disk image for the Cisco Nexus 9000v (N9Kv) switch. This specific version is a widely used reference platform for simulating Cisco’s Data Center Operating System (NX-OS) in virtual environments like EVE-NG, GNS3, or Cisco Modeling Labs (CML). 1. Image Specifications & Requirements Filename: nxosv-final.7.0.3.I7.4.qcow2 Platform: Cisco Nexus 9000v (N9Kv) Resource Requirements:
RAM: Minimum 8 GB (8096 MB) is recommended for stable performance. CPU: At least 2 vCPUs.
Disk Interface: Typically requires SATA or VirtIO depending on the hypervisor; EVE-NG specifically requires renaming it to sataa.qcow2. 2. Official Download Methods
The only legal and authorized way to obtain this image is through Cisco’s official channels: NX-OS - Cisco Modeling Labs v2.9
To use the Nxosv-final.7.0.3.i7.4.qcow2 image, you typically need to deploy it within a network simulation environment like EVE-NG or GNS3. This image is a virtualized version of the Cisco Nexus 9000v switch. 1. Obtain the Image
Cisco does not provide direct public download links for these images without a valid contract, but they are available to users with a Cisco.com account.
Official Source: Log in to the Cisco Software Download portal.
Search for: "Nexus 9000v" and select the 7.0(3)I7(4) release. Nxosv-final.7.0.3.i7.4.qcow2 Download
Format: Ensure you download the .qcow2 version, as it is specifically designed for KVM/QEMU environments. 2. Setup Guide for EVE-NG
EVE-NG is a popular platform for running this specific image. Follow these steps to integrate it:
Create the Directory: Log into your EVE-NG CLI (via SSH) and create a directory for the image.mkdir -p /opt/unetlab/addons/qemu/nxosv9k-7.0.3.I7.4/
Upload the Image: Use an SFTP client (like WinSCP) to upload nxosv-final.7.0.3.i7.4.qcow2 into the directory created above.
Rename the File: The image must be named sataa.qcow2 for EVE-NG to recognize it.cd /opt/unetlab/addons/qemu/nxosv9k-7.0.3.I7.4/mv nxosv-final.7.0.3.I7.4.qcow2 sataa.qcow2
Fix Permissions: Run the EVE-NG utility to ensure the system can execute the file./opt/unetlab/wrappers/unl_wrapper -a fixpermissions 3. First Boot Configuration
When you first start the node in your lab, you must complete the initial setup:
Abort Auto Provisioning: When prompted with Abort Auto Provisioning and continue with normal setup? (yes/no), type yes.
Secure Password: For Do you want to enforce secure password standard?, type no.
Admin Password: Set the password for the admin user (e.g., admin or Cisco123). Basic Config Dialog: When asked, type no. 4. Hardware Requirements
The Nexus 9000v is resource-intensive. Ensure your host machine meets these minimums: vCPUs: 2 (minimum)
RAM: 8 GB (recommended for stable operation, though some versions run on 4 GB or 3 GB) Disk: ~8 GB Cisco Nexus 9000v switch - - EVE-NG
Nxosv-final.7.0.3.i7.4.qcow2 a virtual disk image for Cisco's
, a virtualized platform designed to simulate the Nexus 7000/9000 switch operating system The nxosv-final
. It is primarily used by network engineers within simulation environments like GNS3, EVE-NG, or Cisco Modeling Labs (CML). Key Technical Specifications Operating System: Cisco NX-OS (Nexus Operating System). 7.0(3)I7(4).
QCOW2 (QEMU Copy-On-Write), optimized for KVM-based hypervisors. Resource Requirements: Typically requires a minimum of to boot reliably in a virtual environment. Deployment Context This specific image is often sought for: Learning & Certification:
Practicing NX-OS specific features like vPC (virtual PortChannel), VXLAN, and OTV for CCNP or CCIE Data Center exams. Topology Testing:
Validating configuration scripts or network designs before deploying them to physical Nexus hardware. Automation Development:
Testing Ansible playbooks or Python scripts against a programmable Cisco interface. Download and Compliance Note
Cisco NX-OSv images are proprietary software. To obtain them legally and ensure you have the necessary dependencies (like specific OVMF or BIOS files for booting): Cisco Modeling Labs (CML): The most direct legal method is purchasing a CML subscription , which includes a library of verified QCOW2 images. Cisco Software Central:
Users with a valid service contract (SmartNet) can sometimes download standalone virtual images via the Cisco Software Download
Using images from third-party "mirror" sites is generally discouraged due to security risks (potential malware) and licensing violations. for a platform like EVE-NG or GNS3?
For pure KVM using virt-manager or command line:
# Create a new VM
virt-install --name nxosv-lab1 \
--vcpus 2 --ram 4096 \
--disk path=/path/to/nxosv-final.7.0.3.i7.4.qcow2,format=qcow2 \
--import --os-variant generic \
--network bridge=virbr0,model=virtio \
--console pty,target_type=serial
Critical KVM Tuning for NXOSv:
Add the following to the VM’s XML configuration (using virsh edit <vm-name>):
<cpu mode='host-passthrough'/>
<features>
<acpi/>
<apic/>
<pae/>
</features>
Otherwise, the NXOSv kernel may panic.
The nxosv-final.7.0.3.i7.4.qcow2 image is an invaluable tool for anyone needing a virtual Cisco Nexus switch for learning, testing, or automation. While not suitable for production traffic forwarding, it provides an authentic NX-OS environment that behaves almost identically to physical hardware for control plane operations.
Best Practice: Always download directly from Cisco, keep your lab isolated from production, and regularly back up your VM state.
Last updated: 2026-04-13
Write-up based on Cisco NX-OS 7.0(3)I7(4) documentation and community experience. Option 2: Deploy on Linux KVM (libvirt) For
The file Nxosv-final.7.0.3.i7.4.qcow2 is a virtual disk image for the Cisco Nexus 9000v (NX-OSv 9000) switch. It is primarily used in network simulation environments like EVE-NG and GNS3 to test data center configurations without physical hardware.
Based on the capabilities of NX-OS Release 7.0(3)I7(4), here are several features and use cases you can implement with this download: 1. Programmability & Automation
Guest Shell: Leverage a built-in Linux container environment (CentOS-based) to run Python scripts or install custom Linux tools directly on the switch.
NX-API: Enable REST-based management to interact with the switch using JSON or XML, making it compatible with automation tools like Ansible or custom Python frameworks.
POAP (PowerOn Auto Provisioning): Test zero-touch deployment scripts to automate the initial configuration of new switches in a fabric. 2. Advanced Networking Simulations Cisco Nexus 9000v switch - - EVE-NG
It was a typical Monday morning for John, a network engineer at a large corporation. He was sipping his coffee and checking his emails when he received a message from his colleague, Michael. The email was simple, yet urgent: "Hey John, I need your help with a project. Can you download the latest Nxosv image for me?"
John knew that Nxosv was a virtualized version of the Cisco Nexus operating system, and it was used for testing and validation purposes. He also knew that the image was quite large, and it required a specific format, .qcow2.
He quickly opened his web browser and navigated to the Cisco website. After logging in, he searched for the Nxosv image and found the one that Michael needed: Nxosv-final.7.0.3.i7.4.qcow2. The file size was over 2 GB, and John knew it would take some time to download.
As the download progressed, John thought about the project that Michael was working on. It was a complex network migration, and the Nxosv image was required for testing the configuration. John was impressed by Michael's attention to detail and his commitment to delivering high-quality results.
Finally, after 20 minutes, the download was complete. John sent an email to Michael, informing him that the file was ready. Michael replied immediately, thanking John and asking him to transfer the file to the shared drive.
John uploaded the file to the shared drive and sent Michael a link. A few minutes later, Michael confirmed that he had received the file and was able to boot up the Nxosv virtual machine.
The project was back on track, thanks to John's quick response and technical expertise. As he closed his laptop and headed to his next meeting, John felt a sense of satisfaction, knowing that he had helped his colleague and contributed to the success of their team.
In the world of network engineering, few names carry as much weight as Cisco’s NX-OS. The operating system that powers the data-center-centric Nexus switch series is the gold standard for high-performance, low-latency, and highly available networking. However, physical Nexus switches can cost tens of thousands of dollars, creating a significant barrier to learning and labbing.
Enter NXOSv (Nexus OS Virtual). This is Cisco’s virtualized version of the NX-OS software, designed to run on hypervisors like KVM (Kernel-based Virtual Machine), VMware ESXi, and Proxmox. One of the most stable and widely sought-after builds in the community and enterprise lab environments is the file named:
nxosv-final.7.0.3.i7.4.qcow2
This article will serve as your definitive guide to understanding what this file is, why version 7.0.3.I7.4 is significant, where to legally obtain it, and how to deploy the .qcow2 image successfully.