Hello There, This is a bit boring question, I must admit, but try to read through ... I have a requirement to connect over the weekend, a Cat 6509 to 2 'core' switches cat 5000. This is the 1st 6509 that will be in the network, and the switches acting as core are 'a bit old'. Also, we won't be using the GE connections now, as these core switches do not have such connectors. My concern is which software should be run on the 6509, and is there anybody out there that had the same funny setup ? Anybody heard about some kind of incompatibilities ? Here are the specs : The 2 Catalysts 5000 are running 3.2(5), with Sup I WS-X5509 10/100 M Fast Switching Module WS-X5213A RSM WS-X5302 running 11.2.13P The Catalyst 6509 is running what ever will seem the best, with Sup I with 2 GE WS-X6K-SUP1A-2GE Ethernet Module WS-X6248-RJ45 Thank you for your help ... ===== We are NOT Cisco Inc. __________________________________________________ Do You Yahoo!? Send instant messages & get email alerts with Yahoo! Messenger. http://im.yahoo.com/ ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]