Top: Iosxrvk9demo613qcow2

If your lab runs primarily on a VMware platform (such as ESXi, Workstation, or VMware Fusion), you must transform the QEMU-formatted disk into a Virtual Machine Disk ( .vmdk ).

The string refers to a specific virtual disk image file for the Cisco IOS XRv 9000 router. The filename can be broken down as follows: iosxrv : Indicates the Cisco IOS XRv platform.

This comprehensive guide breaks down everything required to find, deploy, configure, and optimize the iosxrv-k9-demo-6.1.3.qcow2 image within modern network simulation topologies. What is the iosxrv-k9-demo-6.1.3.qcow2 Image? iosxrvk9demo613qcow2 top

If you allocate less than 12–16 GB of memory to this specific 6.1.3 image, the virtual router will continuously swap memory to its virtual disk ( hda.qcow2 ). This causes disk I/O bottlenecks that look like high CPU lag in your lab environment. Feature Summary of IOS XRv 6.1.3 Operational Area Supported in 6.1.3 Demo BGP, OSPFv2/v3, IS-IS, RIP Fully operational for multi-area topologies MPLS & Segment Routing SR-MPLS, SRv6 (basic), L3VPN Ideal for modern Service Provider lab prep Automation NETCONF, YANG models, gRPC Great for testing Ansible or Python scripts Throughput Limited/Throttled The demo image artificially caps data-plane speeds

Ensure your hypervisor host is using Intel VT-x or AMD-V hardware acceleration. If deploying via bare KVM, pin the specific QEMU processes of the iosxrvk9demo613qcow2 node to distinct physical CPU cores. This prevents thread thrashing across different physical CPU sockets (NUMA nodes). Allocate Sufficient RAM If your lab runs primarily on a VMware

The image itself is approximately 429 MB, but the virtual disk should be allocated at least 3 GB. Hypervisor: Requires KVM support. It is best used within a environment. Installation Guide 1. Using with EVE-NG Create Directory:

Use legitimate sources like Cisco DevNet or CML. Once deployed, master top on the hypervisor and show processes cpu inside the VM to keep your virtual routing lab running smoothly. This comprehensive guide breaks down everything required to

, this older 6.1.3 image may lack support for newer data-plane features like Segment Routing MPLS Traffic Engineering compared to the newer IOS XRv 9000 import this image into EVE-NG or GNS3

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Once booted, verify the data plane:

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