To run version 5.2.2 efficiently, your virtualization environment should meet these minimum specifications: 1 core (supports up to 8 for demo purposes).
The IOS XRv is a 32-bit virtualized version of Cisco's carrier-grade software, built on a QNX microkernel. The "demo" designation indicates it is intended for education, simulation, and configuration staging rather than production use. iosxrv-k9-demo-5.2.2.ova
Primarily uses Intel E1000 or VirtIO for traffic passing. Installation and Usage To run version 5
3 GB (3072 MB) is the standard minimum, though 4 GB is often recommended to avoid stability issues. Storage: At least 2 GB for the primary virtual disk. Primarily uses Intel E1000 or VirtIO for traffic passing
The .ova format is a pre-packaged Open Virtualization Archive that simplifies the "import" process. Release Notes for Cisco IOS XRv
Combines the Route Processor (RP) and Line Card (LC) functionality into a single virtual card for simplified deployment. System Requirements