Introduction1-8Getting HelpFor additional support related to this device or document, contact CabletronSystems using one of the following methods:Before calling Cabletron Systems, have the following information ready:• Your Cabletron Systems service contract number• A description of the failure• A description of any action(s) already taken to resolve the problem (e.g.,changing mode switches, rebooting the unit, etc.)• The serial and revision numbers of all involved Cabletron Systems products inthe network• A description of your network environment (layout, cable type, etc.)• Network load and frame size at the time of trouble (if known)• The device history (i.e., have you returned the device before, is this a recurringproblem, etc.)• Any previous Return Material Authorization (RMA) numbersWorld Wide Web http://www.cabletron.com/Phone (603) 332-9400Internet mail support@cabletron.comFTP ftp://ftp.cabletron.com/LoginanonymousPasswordyour email addressTo send comments or suggestions concerning this document, contact theCabletron Systems Technical Writing Department via the followingemail address: TechWriting@cabletron.comMake sure to include the document Part Number in the email message.