in our fabric are still devices from FOS V 6.2.2f (4Gb) to V 8.1.a (32Gb) but it works together with BNA V 14.0 0 installed. Recently we got new switches G620 to replace the older ones. They come with V 8.2. One problem is that the compatilibily matrix says you can't mix versions older than V 7.4 with 8.2.. Should I downgrade V 8.2 to 8.1, so that all works together and replace the older switches ? Next problem is our BNA-Version V 14.0.0, we can't upgrade because the newer versions doesn't recognize the 4 GB switches anymore. So we've to wait until replacement is finished. Am I right or should I do something else?