Nxosv-final.7.0.3.i7.4.qcow2 Download Page
If you cannot obtain this exact image, consider these options:
| Alternative | Pros | Cons | | :--- | :--- | :--- | | NXOSv 9.3.x | Newer features, better Python 3 support | Higher memory (6GB+), slower boot | | Cisco CSR1000v | Better routing (IOS-XE), widely available | Not data-center focused (no VXLAN EVPN) | | Arista vEOS | Similar CLI, easier to obtain (free community edition) | Not Cisco – different commands for CCNP labs | | SONiC (Software for Open Networking in the Cloud) | Free, open source, used in large DCs | Not NX-OS; learning curve for Cisco engineers |
The only legal source is Cisco’s official download portal. Nxosv-final.7.0.3.i7.4.qcow2 Download
| Issue | Workaround |
|-------|-------------|
| High CPU usage at idle | Reduce to 1 vCPU, disable unneeded features |
| No hardware forwarding | Acceptable for control-plane testing only |
| Interface counters may be inaccurate | Use show hardware internal counters instead |
| Slow boot time (~3-5 minutes) | Use suspend/resume instead of rebooting |
| VXLAN scaling limited to ~16 tunnels | Do not use for performance benchmarking |
copy running-config startup-config
Problem: VM fails to boot – "Boot device not found"
Solution: Ensure the .qcow2 file is not corrupted. Verify SHA256:
sha256sum nxosv-final.7.0.3.i7.4.qcow2 (compare with Cisco's published hash)
Problem: Management interface won't come up
Solution: In KVM, ensure the NIC model is virtio (not e1000). In VMware, set the NIC to VMXNET3. If you cannot obtain this exact image, consider
Problem: Serial console shows gibberish
Solution: Use 9600 baud, 8 data bits, no parity, 1 stop bit (8N1). In KVM, use virsh console or minicom.
For context, here is what makes this specific version valuable: Problem: VM fails to boot – "Boot device
Note: This version does not support:
NXOSv is a virtualized form factor of Cisco NX-OS. It is designed to run on x86 hardware using Type 1 or Type 2 hypervisors (like KVM, VMware ESXi, or even GNS3/EVE-NG). It enables: