Demo/Lightweight (Designed to run with fewer resources than the full IOS XRv 9000). K9: Refers to the inclusion of cryptographic software.
sudo apt update sudo apt install qemu-kvm libvirt-daemon-system virt-manager bridge-utils sudo systemctl enable --now libvirtd
GNS3 provides a pre-built appliance template file ( .gns3a ) specifically written to recognize this image. iosxrvk9demo613qcow2
Unlike production images, this "demo" version is optimized for lab scenarios. While it allows full control plane configuration (routing protocols, MPLS, etc.), it typically has limitations on data plane throughput and feature support compared to full production XRv images.
The string iosxrvk9demo613qcow2 appears to be a combining valid elements ( iosxrv , k9 , qcow2 ) with ambiguous or custom elements ( demo , 613 ). It does not match any official Cisco naming scheme. Demo/Lightweight (Designed to run with fewer resources than
Depending on what you are looking for, this query could mean a few different things: Virtual lab setup (using the image in platforms like Image conversion (turning the file into other formats like or vice versa). Version capabilities
: Compatible with QEMU/KVM environments and commonly used in network emulation tools like GNS3 , EVE-NG , and Cisco Modeling Labs (CML) . Common Deployment Scenarios Unlike production images, this "demo" version is optimized
This image enables engineers to safely validate advanced Service Provider configurations—such as BGP, OSPF, MPLS, and segment routing—inside simulated sandbox environments before deploying to physical hardware. Technical Overview of the Image
| Issue | Likely Cause | Solution | |-------|--------------|----------| | VM fails to boot (“No bootable device”) | The image is corrupted or not in qcow2 format. | Re‑download the image and verify its checksum. Use qemu-img info iosxrvk9demo613qcow2 to confirm format. | | Login prompt never appears | Serial console misconfiguration. | Ensure --console pty,target_type=serial is used. Alternatively, connect via VNC. | | License expires after 60 days | Demo image limitation. | Re‑deploy from a fresh copy of the image (snapshots do not reset the timer). | | Interfaces do not come up | Missing virtio drivers or wrong model. | In virt‑install, add model=virtio to the network definition. For older images, use model=e1000 . | | High CPU usage inside VM | IOS XR data plane runs in software. | Reduce routing protocols, disable unnecessary features, or allocate more vCPUs. |
If you’ve spent time in the world of network engineering, you know that getting hands-on with high-end Service Provider gear like the can be a challenge. That’s where virtual images like iosxrvk9-demo-6.1.3.qcow2 come into play.
For the IOS XRv 9000 specifically, you may need significantly more resources than the standard XRv. Some lab environments allocate 8 GB of RAM per node or more, and the image can easily consume 30–50 GB of disk space when deployed. Unlike the standard XRv which runs a 32-bit OS, the XRv 9000 runs a 64-bit version of IOS XR, allowing it to address more memory and handle larger routing tables.