__top__ | Iosxrvk9demo613qcow2

: By default, unlicensed demo images are heavily rate-limited to 200 Kbps , making them unsuitable for significant traffic throughput testing. Feature Constraints : It does not support hardware-specific configurations.

Notice the separating tokens. Your keyword iosxrvk9demo613qcow2 has no separators except the final dot. This violates several naming best practices:

qemu-img info iosxrvk9demo613qcow2

Rename the file to virtioa.qcow2 inside EVE-NG so that the underlying hypervisor recognizes it as the primary boot disk.

: It provides a similar "look and feel" to physical Cisco ASR 9000 Series Routers , including support for control plane and management plane features. iosxrvk9demo613qcow2

Knowing this, I can provide the specific steps to optimize your node configuration (CPU/RAM settings) or help you fix common boot issues if you encounter them.

For older versions, you may need to manually define the image. Access to the latest images typically requires a valid Cisco account and software entitlement (e.g., through a VIRL/CML Personal Edition subscription). Users have reported that defining the image manually can be complex but is feasible for advanced users. : By default, unlicensed demo images are heavily

| Component | Meaning | Significance | | :--- | :--- | :--- | | | IOS XRv Router | This identifies the virtualized version of Cisco’s IOS XR operating system. Unlike traditional Cisco routers that run on specialized hardware, IOS XRv is designed to run on standard x86 servers. | | k9 | Encryption (3DES/AES) | The "k9" designation indicates that the image includes strong encryption capabilities (3DES and AES), which are required for secure VPN connections, SSH, and other cryptographic functions. Images without this marking may have encryption limited or removed due to export restrictions. | | demo | Demo / Trial Version | This marks the image as a demonstration or evaluation copy. Demo images are typically free to download and use for learning, but they come with limitations such as throughput caps (e.g., 2 Mbps) or restricted feature sets. Full-production images require a paid license. | | 613 | Version 6.1.3 | This refers to Cisco IOS XR software release 6.1.3. Version numbers follow Cisco’s standard scheme where the first digit (6) indicates the major release, the second digit (1) indicates the minor release, and the third digit (3) is the maintenance or patch level. | | qcow2 | File Format | QEMU Copy-On-Write version 2—the native disk image format for KVM/QEMU virtualization. QCOW2 supports features like snapshots, compression, encryption, and thin provisioning, making it ideal for virtual machine management. |

The IOS XR 6.1.x branch introduced robust Segment Routing (SR-MPLS) support. With , you can build a small SR domain: Knowing this, I can provide the specific steps