Iosxrv-k9-demo-6.1.3.qcow2 Fixed 〈Essential — 2026〉
iosxrv-k9-demo-6.1.3.qcow2 is a demo-licensed virtual image for Cisco IOS XRv , a cloud-optimized version of Cisco's high-end IOS XR software designed for service provider networks. Cisco Community File Overview (QEMU Copy-On-Write), commonly used with the hypervisor.
This file is a disk image (hard drive) for a virtual router, not an ISO installer. Iosxrv-k9-demo-6.1.3.qcow2
- show version
- show running-config
- show interfaces brief
- show bgp ipv4 unicast summary
- show ospf neighbor
- show route
- show controllers and show processes
- iosxrv: This indicates the IOS-XR Virtual platform. Unlike classic IOS (used on enterprise switches and ISR routers) or IOS-XE (used on ASR 1000 series), IOS-XR is a completely different operating system. It is a microkernel-based, distributed OS designed for massive scale, high availability, and carrier-grade routing. It runs on the ASR 9000, NCS 5000/6000, and CRS core routers.
- k9: In Cisco nomenclature, "k9" generally denotes cryptographic (encryption) capability. This image supports SSH, IPSec, and other secure protocols, making it suitable for realistic VPN and control-plane security labs.
- demo: This is the most critical qualifier. The "demo" image is a special, lightweight version of IOS-XRv. The full commercial IOS-XRv requires a license and substantial RAM (often 8GB+ per node). The demo variant is stripped down to run on a single CPU core and limited RAM (typically 2-4GB). It lacks some advanced features like MPLS TE or high-scale BGP tables but is perfect for learning fundamentals.
- 6.1.3: This is the software version. IOS-XR release 6.1.3, part of the 6.1.x train, is a mature, stable release. It introduced features like Segment Routing (SR) and EVPN improvements. For labbing, version 6.1.3 is ideal because it is modern enough to support current routing protocols (OSPFv3, ISIS, BGP with SR) but not so heavy that it chokes a standard laptop.
- .qcow2: This stands for QEMU Copy-On-Write version 2. It is the native disk image format for QEMU and KVM (Kernel-based Virtual Machine). Unlike a flat
.img file, QCOW2 supports snapshots, compression, and backing files. This format is the industry standard for OpenStack, Proxmox, and GNS3/EVE-NG virtualization.
Note: This image is legally available through Cisco CCO (Cisco Connection Online) with a valid service contract, or via VIRL (Cisco Modeling Labs) subscriptions. We assume you have legitimate access. iosxrv-k9-demo-6
Run show ipv4 interface brief to verify. show version show running-config show interfaces brief show
In the world of IOS XR, nothing is real until you commit the configuration. The terminal paused. The fan of his workstation whirred louder, a mechanical sigh. Building configuration... [OK]
new feature
Since you asked to "come up with a feature" — I assume you want to invent or suggest a for this platform (or for a hypothetical demo image like this). If you meant something else (e.g., extract existing features, enable a feature), let me know.