I have confussion.I want to learn about IOS-XR and want to buy a router that runs it. I read documentation that 12000 XR router and run XR software. My question is that does 12000 come in 2 flavors, 12000 and 12000 XR? which one should i get?
also when I look at the download center, i do not see any place where it says download code for 12000 XR, but i see a place where it days download XR software, but the file name has CRS-1 in it. can the same XR code run on 12000 XR as well.