The iosxrv-k9-demo-6.1.3.qcow2 image is a virtualized instance of Cisco’s IOS XR software, specifically designed for simulation and testing in environments like GNS3, EVE-NG, and Cisco Modeling Labs (CML). Technical Overview
The 6.1.3 demo version represents a specific milestone in the transition of IOS XR toward a more modular, Linux-based architecture. While modern production networks often use IOS XR 7.x (64-bit/eXR), the 6.1.3 demo remains a staple for learning the fundamental control plane operations of service provider routing. Architecture and Core Specifications
To run this image effectively, the following technical requirements must be met:
Virtualization Format: QCOW2 (QEMU Copy-On-Write), optimized for KVM-based hypervisors.
Resource Allocation: Minimum 3072 MB (3GB) RAM is required for stable boot and CLI responsiveness. iosxrvk9demo613qcow2 updated
CPU: Requires a 64-bit architecture with VT-x/AMD-V virtualization extensions enabled.
Boot Firmware: Legacy BIOS is typically used for this specific 6.1.x demo series. Deployment in Lab Environments
The deployment process varies slightly depending on your chosen simulation platform:
EVE-NG: The image must be placed in a specifically named directory (e.g., /opt/unetlab/addons/qemu/xrv-k9-6.1.3/) and the filename must be changed to virtioa.qcow2 or hda.qcow2 for the emulator to recognize it. The iosxrv-k9-demo-6
GNS3: Users can utilize the GNS3 Appliance File to automate the import process, ensuring correct NIC drivers (usually e1000 or virtio-net-pci) are mapped.
Vagrant/Libvirt: This version is frequently used to build automated Vagrant boxes for "Infrastructure as Code" (IaC) testing. Operational Characteristics
Two-Stage Configuration: Unlike standard IOS, IOS XR uses a "target configuration" model. You must enter commands and then explicitly use the commit command to apply them to the running configuration.
Demo Limitations: As a demo image, it is typically rate-limited (throughput often capped at ~2-10 Mbps) and lacks full hardware-accelerated data plane features. It is intended for control plane testing (BGP, OSPF, ISIS, MPLS) rather than performance benchmarking. Enable mode: XR-vm# show version
Default Credentials: Most demo images default to admin/admin or prompt for a user creation on the first boot. Modern Considerations
While 6.1.3 is highly stable for basic routing labs, it lacks support for newer features like advanced Segment Routing (SRv6) or certain Model-Driven Telemetry capabilities found in newer 7.x releases. For developers focused on automation, the image supports basic XML and NETCONF interfaces, making it a viable entry point for learning Cisco Programmability.
The most common platform for the iosxrvk9demo613qcow2 updated is EVE-NG. Here is the exact updated procedure.
Upon boot, the updated image will automatically generate SSH keys. Wait 3-5 minutes. Access the console:
Username: demo
Password: demo
Enable mode:
XR-vm# show version
You should see: Cisco IOS XR Software, Version 6.1.3[Updated]