There was a tweet on Friday that some may have missed, but it is one that you do not want to miss. It was a subtle little announcement from @CiscoIOSXR about IOS XRv!

Your wait for IOS XR is over! Download IOS XRv here! 🙂 http://t.co/0WVMAuHqU1 #IWantIOSXR #IOSXR
— IOS XR (@CiscoIOSXR) February 7, 2014

Note:  On Tuesday, February 11th there was an update that they are still working on the entitlement issue.  Tweet is included below as well.

@fryguy_pa @steve We have a plan to resolve the entitlement checking issue, but this means images will be pulled off CCO for 3 days 🙁
— IOS XR (@CiscoIOSXR) February 11, 2014

 So yes, that is a V as in Virtual!  Finally, IOS XRv has been released –  and on the latest IOS-XR code, 5.1.1!

So a few things about IOS XRv –  first of all, it is a 32–bit softwrae version running on the QNX microkernel.  The VM contains a single RP and a some LC Interfaces.
The demo version of the software is FREE for users, has AAA hard-coded users in it, and is rate-limited to 2 Mbps.   There is also a Simulation Image available and has no hard-coded users and is rate-limited to 50 Mbps.  Finally there is a Production Image that has no hard-coded users and no rate-limit.
To run the IOX XRv Router you will need: