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.
you can use the 12000 with regular IOS and also with XR IOS so I think this is the difference between 12000 and 12000 XR.
And you can use XR IOS on both platforms 12k and CRS-1 but if you want to use it on a 12k there are images which contain XR12000 in the name. For example I found this one when I was searching for software for the 12000 XR: XR12000-iosxr-3.6.1.tar
Just make sure your 12k supports XR, but XR is XR, 3.6.1 is mature version so you can play around although you will not take advantage the fail-over if you don't have dual RP. What kind of 12k do you have? What kind of PRP do you have? What kind of LC do you have?
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