Hi Group I am about to buy a 2901 switch,but the seller said he had installed a supervisor I on a chassis marked as 2902 series and it does boot up without any pain? does any one know whether or how much the 2901/2902's chassis is compatible with 5000 series modules ,say , install a supervior III to 2902/2901's chassis ,possible???? Thanks ___________________________________ 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]