In the dimly lit glow of a basement lab, stared at the flickering cursor on his terminal. Before him sat the prize of weeks of digital hunting: iosxrv-k9-demo-6.1.3.qcow2
Suddenly, the virtual topology on his second monitor turned green. The phantom loop was gone. The packets flowed with perfect, rhythmic precision. Elias leaned back, watching the traffic counters climb. In that tiny .qcow2 file, he had found order in the chaos. It was only a demo, a temporary simulation, but for tonight, the network was alive, and it was perfect.
Due to the "demo" designation, this image has very limited packet-forwarding throughput. It is meant for control plane testing , not traffic-forwarding performance tests.
"Iosxrv-k9-demo-6.1.3.qcow2" might be a demo image of an iOS or macOS variant, possibly a virtual machine running a pre-release or special version of the operating system. Iosxrv-k9-demo-6.1.3.qcow2
The iosxrv-k9-demo-6.1.3.qcow2 image remains a foundational tool for network engineers mastering the Service Provider space. Whether you are learning the IOS XR CLI, testing automation scripts, or preparing for advanced certifications, this image provides a stable, free, and accessible environment to sharpen your skills.
Download the appliance template from the official GNS3 Marketplace.
Newer "XRv 9000" images require 16GB+ of RAM. The classic XRv (6.1.3) runs smoothly on 3GB, allowing you to run 10+ routers on a standard laptop. In the dimly lit glow of a basement
Later versions (7.x) require massive RAM (16-32GB per node) and multiple vCPUs. Version 6.1.3 can operate with 4GB-6GB of RAM and 2 vCPUs, making it ideal for modest EVE-NG or GNS3 setups.
Why would someone still look for this specific file today?
The data plane throughput is limited. It is meant for control-plane validation and configuration testing, not for high-throughput traffic testing. The packets flowed with perfect, rhythmic precision
Which you plan to use (EVE-NG, GNS3, or CML).
Getting hands-on experience with the IOS XR CLI, which differs significantly from traditional Cisco IOS XE.
