Sometimes, this string appears in changelogs for network simulation software (like EVE-NG or GNS3 templates). When those platforms release a new template version, they might list the change as "iosxrvk9demo613qcow2 updated," meaning:
"We have updated our template to support the IOS XRv 6.1.3 qcow2 image."
This is critical because older templates might try to launch the VM with the wrong RAM or CPU settings, or the wrong network adapter type (e.g., using E1000 instead of VirtIO), causing the router to crash. The "update" signifies that the software now supports that specific version natively.
If you want, tell me your hypervisor (KVM, VMware, VirtualBox, or cloud) and the image format (qcow2, OVA, ISO) and I’ll provide exact commands/steps for that environment.
However, if you're looking for information on a specific iOS demo or a similar topic, here are some general suggestions on how to approach it:
If you could provide more context or clarify your interest, I'd be more than happy to try and assist further!
virtual router image, specifically version 6.1.3, in the .qcow2 file format. Identity of the Image
Platform: This file belongs to the Cisco IOS XRv family, a virtualized platform for the Cisco IOS XR operating system designed for simulation and testing environments like CML (Cisco Modeling Labs), GNS3, and EVE-NG.
Version 6.1.3: This specific version is a legacy 32-bit "classic" release. While it remains functional for basic network topology testing, it has been largely superseded by the 64-bit IOS XRv 9000 (often referred to as "Sunstone").
File Format (.qcow2): This format is standard for use in KVM (Kernel-based Virtual Machine) and OpenStack environments. Status and Limitations
Demo-Locked: The "demo" designation indicates this image is for evaluation and testing. It typically includes hard-coded default credentials (such as admin/admin or cisco/cisco) that cannot be changed.
Lifecycle Status: IOS XRv version 6.x images are currently deprecated. Cisco has issued End-of-Life (EoL) notices for these demo images, meaning they no longer receive official technical support or new feature updates. iosxrvk9demo613qcow2 updated
Functionality Gaps: Because it is an older 32-bit image, it may lack support for modern features like Segment Routing or newer EVPN implementations that are standard in later versions like 7.x or the current 24.x/25.x releases. Update Implications
When this image is described as "updated," it usually refers to:
Understanding the Updated iosxrvk9-demo.6.1.3.qcow2 Virtual Image
The iosxrvk9-demo.6.1.3.qcow2 file is a virtual disk image representing the Cisco IOS XRv software. It is primarily used by network engineers and students for testing, simulation, and training in virtualized environments. While newer versions of the software—such as the Cisco IOS XRv 9000—are now available, the 6.1.3 demo image remains a standard starting point for many legacy lab scenarios. What is IOS XRv?
IOS XRv is a virtualized instance of Cisco’s high-end IOS XR operating system, which is typically used on massive service-provider-grade routers like the Cisco ASR 9000 Series. Unlike traditional physical hardware, this virtual image runs on generic x86 servers using a hypervisor. Key Specifications for the 6.1.3 Demo Image
The .qcow2 format is specifically designed for the QEMU/KVM hypervisor, though it is frequently used within network simulation tools like GNS3 or EVE-NG. Virtual Disk Format: QCOW2 (QEMU Copy-On-Write). Version: 6.1.3.
Intended Use: Demonstration, feature testing, and education.
Memory Requirement: Typically requires at least 3GB to 4GB of RAM per instance to boot successfully in a virtual environment. Why Update Your Image?
When users search for the "updated" version of this keyword, they are typically looking for two things: stability fixes or compatibility with newer simulation tools.
This phrase refers to the Cisco IOS XRv 9000 (Demo version) virtual disk image, specifically version 6.1.3 in the QCOW2 format. This image is commonly used by network engineers in virtual labs like GNS3, EVE-NG, or PNETLab to simulate high-end Cisco routers. Technical Breakdown
iosxrvk9: Represents the IOS XRv 9000 platform, which is the virtualized version of Cisco's service provider operating system. Sometimes, this string appears in changelogs for network
demo: Indicates this is a trial/evaluation version. While it provides full control plane features, it usually has significant throughput throttling (e.g., 100 Kbps to 1 Mbps) and lacks a production license. 613: Corresponds to software version 6.1.3.
qcow2: The standard disk image format for QEMU/KVM virtualization environments. Implementation Guide
To get this specific image "updated" and running in a lab environment, follow these standard steps:
Resource AllocationThis image is resource-heavy. Ensure your host machine or server meets the minimum requirements per instance: CPU: 4 vCPUs.
RAM: 16 GB (8 GB is often the absolute minimum for booting, but 16 GB is recommended for stability). Disk: ~4 GB of initial space. Environment Setup
EVE-NG: Create a folder named iosxrvk9-6.1.3 in the /opt/unetlab/addons/qemu/ directory. Rename the file to virtioa.qcow2 before starting the node.
GNS3: Use the GNS3 Cisco IOS XRv 9000 appliance template to ensure the correct QEMU flags (like -machine type=pc-1.0,accel=kvm) are applied automatically.
Booting & Initial ConfigThe first boot can take 5–10 minutes. Once you reach the prompt, you must create a root user immediately:
!!! NO root-system username/password configured !!! Enter username: admin Enter password: Use code with caution. Copied to clipboard
VerificationConfirm the version and "updated" status using the Cisco CLI: show version: Displays the 6.1.3 release info.
show install active: Lists any installed patches or Software Maintenance Upgrades (SMUs). "We have updated our template to support the IOS XRv 6
The phrase "iosxrvk9demo613qcow2 updated" refers to a specific event in the network engineering and DevOps community involving the distribution of Cisco's virtual routing software.
Here is the full story behind that filename and what the "updated" status signifies.
This specific file refers to a virtual machine image for the Cisco IOS XRv
(demo version 6.1.3). This 64-bit operating system is used on carrier-grade platforms like the NCS-6000 and is a staple for network engineers building complex lab environments.
Here is an "interesting guide" to getting this powerhouse running in your virtual lab. 🚀 What is this image? iosxrv-k9-demo-6.1.3.qcow2 QEMU Copy-On-Write
disk image. It allows you to simulate high-end Cisco service provider hardware on your own server or PC using tools like 🛠️ Hardware Prerequisites
Before you hit "Power On," check your specs. IOS XRv is famously resource-heavy: Minimum 1 (4 recommended for the XRv 9000 variant). This specific 6.1.3 demo usually needs 3GB to 4GB of RAM, though newer versions (XRv 9000) can demand up to Hypervisor: enabled on your host machine. 🚦 Quick-Start Setup (EVE-NG Style)
If you're using EVE-NG, follow these "secret sauce" steps to ensure it boots: Create the Directory: SSH into your EVE-NG server and create a folder named xrv-k9-6.1.3 /opt/unetlab/addons/qemu/ Upload & Rename: Upload your file to that folder and rename it to virtioa.qcow2 Fix Permissions: Always run the magic command: /opt/unetlab/wrappers/unl_wrapper -a fixpermissions The default credentials are typically admin/admin cisco/cisco 💡 Pro-Tips for Success The "Slow Boot" Warning:
Don't panic if it looks stuck. The initial boot can take 5–10 minutes as the OS initializes its internal databases. Demo Mode Limits: Because this is the "demo" version, it is typically rate-limited
(often to 200 Kbps) and may have limitations on certain data plane features. Commit Your Changes: IOS XR uses a two-stage configuration. You must type after your commands, or they won't take effect!
What specific network topology are you planning to build with this router? Cisco IOS XRv 9000 - GNS3