The reason is cause 2.0 and 2.1 are different chains, which means that a version of 2.0 is not necessarily older than a 2.1 version (One release does not discontinue the other).
The idea is not to force customers to do a major upgrade. For example in 2.1 Default Zoning is not supported anymore and that might be a reason why you would not like to move to 2.1 but instead do a upgrade to a newer version of 2.0 were that feature still works but fixes a specific bug, for example.
That is the reason why our bug´s documentation usually say "fixed in: 2.0x and 2.1x "
I hope I made my point.
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Thanks Kenny !
The real question: which version do I use, to get drivers for W2012 R2 ? I think this is rather confusing for any customer ?
Then the question is ... what version are you running? that will determine what drivers you will download.
Even better, you may use this tool to tell you
One trick we use is that we "open" the .iso file and we check to compare with the link I posted above
sorry, but do I have to download 2 different containers of 2 resp 1 GB, to find out where I can get
Adapter Driver = 188.8.131.52 (FNIC) / 184.108.40.206 (ENIC)
Adapter Firmware = 2.1(3)
Not very user friendly, and not logically ;-)
You will not have to download a bundle that is not in the same chain you use. Why would download the 2.0 bundle if you are running 2.1 ???? That was my point.
OK, thanks Kenny !
btw. I think this is the first time, that there are 2 different chains for B-Series, which was creating this unnecessary thread !
Actually not, we have always done it in the same way... you can actually see in cisco.com how we even released the last version of UCSM 1.4 at the beginning of the year.
The firmware updates are, at some point, discontinued to move on with the newer versions.