Iosxrvk9demo613qcow2

Unlike heavy, containerized modern OS footprints that require 16GB+ RAM per node, the 6.1.3 XRv demo image is exceptionally lightweight. This makes it possible to run large-scale topologies (10 to 20 routers) on a single high-tier consumer workstation or mid-range server.

| 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. | iosxrvk9demo613qcow2

These limits are not enforced by hard cod in the image but result from the software‑forwarding nature of IOS XRv compared to hardware ASICs. | Re‑download the image and verify its checksum

Once logged in, enter the configuration mode: | Ensure --console pty,target_type=serial is used

: The precise software release version. Version 6.1.3 is popular because it strikes a balance between low RAM usage and support for modern features like basic Segment Routing, BGP-EVPN, and OSPF/IS-IS.

These limits are not enforced by hard cod in the image but result from the software‑forwarding nature of IOS XRv compared to hardware ASICs.

Once logged in, enter the configuration mode: