Label Distribution Protocol (LDP), RSVP-TE traffic engineering, and segment routing basics.
Every element of the filename, iosxrv-k9-demo-6.1.3.qcow2 , provides specific information:
Show/debug commands:
Open Shortest Path First (OSPFv2/v3) and Intermediate System to Intermediate System (IS-IS).
The software version. While newer versions exist, 6.1.3 remains a stable, functional choice for studying fundamental XR concepts. Iosxrv-k9-demo-6.1.3.qcow2
Because this is a "demo" image, it is intentionally "hamstrung" by Cisco to prevent production use:
The IOS XRv Router is not an emulation of a physical router but a virtual representation. Its architecture consists of a single Route Processor (RP) responsible for control plane functionality, and a Line Card (LC) that handles network interfaces and their associated functions. While newer versions exist, 6
While highly versatile, users must keep certain architectural limitations in mind:
: Signifies the inclusion of strong cryptographic capabilities (such as SSH, HTTPS, and VPN support), subject to export control regulations. Key Specifications & Requirements
The is a virtual image for the Cisco IOS XRv router, designed primarily for network simulation, training, and early-stage control plane testing. Unlike the resource-heavy IOS XRv 9000 (which is 64-bit and requires significant RAM), this 32-bit "classic" image is a lightweight alternative for lab environments like GNS3 and EVE-NG . Key Specifications & Requirements