Thanks for the heads up on this. We use some of these with dot1x. For reference to others, if you still have any 5500-SIs, that were discontinued years back, they do today run 5500-EI code with all features. Many folks still run these with old software because they do not know that this is the case. Original 3Com announcement: http://web.archive.org/web/20101009093205/http://3com.com/products/en_US/end... Paul