Iosxrv-k9-demo-6.1.3.qcow2 -
F. Throughput check (data-plane)
Here is a sample paper based on my analysis:
When you fire up Iosxrv-k9-demo-6.1.3.qcow2 in a hypervisor (like KVM/QEMU), the file acts as a "base image."
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. Iosxrv-k9-demo-6.1.3.qcow2
Run show ipv4 interface brief to verify.
Since the image is in QEMU format, it needs conversion.
The software version. While newer versions exist, 6.1.3 remains a stable, functional choice for studying fundamental XR concepts. Run show ipv4 interface brief to verify
.qcow2 (QEMU Copy-On-Write), natively supported by KVM and QEMU . Size: Approximately 429 MB . MD5 Hash: 1693b5d22a398587dd0fed2877d8dfac . System Requirements
For a long time, the availability of this image was a grey area. It was freely distributed by Cisco for a time as a "virtual router" trial, then pulled, then re-released under different licensing schemes.
While this is a "demo" image with throughput limitations (often capped at around ~1.35 Mbps), it supports nearly all the core IOS XR software features required for professional certifications: While newer versions exist, 6
A qemu-img disk image format, which is the native format for KVM virtualization and easily convertible for VMware. Key Features and Use Cases
While the .qcow2 file appears small (~500MB compressed), it expands on first boot. The demo image includes a limited flash file system. Always allocate at least 4GB of disk space per instance.
RP/0/RSP0/CPU0:iosxrv(config)# crypto key generate rsa ... choose key modulus size (e.g., 2048) ... RP/0/RSP0/CPU0:iosxrv(config)# ssh server v2 Use code with caution. Step 4: Committing the Changes