Used as a legacy node type for light-weight service provider routing simulation. 2. Protocol and Feature Testing
The "Iosxrv-k9-demo-6.1.3.qcow2" image appears to be a demo or test version of an iOS or macOS variant. This paper aims to provide an overview of the image's contents and potential significance.
Newer "XRv 9000" images require 16GB+ of RAM. The classic XRv (6.1.3) runs smoothly on 3GB, allowing you to run 10+ routers on a standard laptop.
: QEMU Copy On Write version 2. This is the native disk image format for the QEMU/KVM hypervisor. It is highly optimized for virtualization, supporting dynamic expansion, snapshots, and copy-on-write optimizations. Key Capabilities and Use Cases Iosxrv-k9-demo-6.1.3.qcow2
Whether you need help or console access issues.
The file is a virtual machine image for the Cisco IOS XRv router. Unlike the newer, more resource-intensive IOS XRv 9000
: The specific software release version. While older than current 64-bit IOS XR7 or XR9 releases, the 6.1.x train remains highly relevant for legacy environment replication, basic routing protocol certification study (like CCIE Service Provider), and classic architecture validation. Used as a legacy node type for light-weight
Testing Python or Ansible scripts against the XR API.
For the demo-locked image, there is a crucial caveat: the operating system comes with pre-configured, hard-coded usernames and passwords. The standard credentials for the iosxrv-k9-demo images are:
: Verify SSH is enabled. Default XR config requires: This paper aims to provide an overview of
Your host computer's (RAM and CPU count).
Using QEMU > 4.2 may cause console lockups due to changes in serial device emulation. Use qemu-system-x86_64 -machine pc-i440fx-2.7 for compatibility.
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:
RP/0/RP0/CPU0:iosxr# configure terminal RP/0/RP0/CPU0:iosxr(config)# interface Management0/RP0/CPU0/0 RP/0/RP0/CPU0:iosxr(config-if)# ipv4 address 192.168.1.50 255.255.255.0 RP/0/RP0/CPU0:iosxr(config-if)# no shutdown RP/0/RP0/CPU0:iosxr(config-if)# exit RP/0/RP0/CPU0:iosxr(config)# crypto key generate rsa RP/0/RP0/CPU0:iosxr(config)# ssh server v2 RP/0/RP0/CPU0:iosxr(config)# commit Use code with caution. Known Limitations of the Demo Image
At its core, iosxrv-k9-demo-6.1.3.qcow2 is a pre-installed disk image file for the . The "XRv" stands for "IOS XR virtualized," and it is a virtual machine (VM) that runs the same Cisco IOS XR operating system found on Cisco's high-end carrier-grade routers. The qcow2 format (QEMU Copy-On-Write version 2) is a disk image format used by the KVM (Kernel-based Virtual Machine) hypervisor. As noted in Cisco’s installation guide: "The qcow2 disk image has an instance of the Cisco IOS XRv 9000 Router pre-installed". This means the image is ready to boot, reducing the setup time significantly.
