I am in the planning phases of a network infrastructure upgrade. We are about to replace our access layer switches which are all 10/100 to newer cisco kit. All the new switch ports are 10/100/1000 capable. I have about 300 connections in the access layer that are going to be used for workstation end user connections. All of the end user workstation machines have gig capable nic cards. My question is do I just leave all the ports to auto and allow the worksations to negotiate to a gig speed which will most likely be the result from an auto/switch, auto/user setting? I know it will be less administration going with auto/auto scenario but what makes more sense from a capacity point of view. Do my end users really need 1000 speed on the network? and if they are all given this capability does this put the network in jeapordy by giving the users ability to saturate links, such as trunks to the core etc...???
What also makes more sense from a design point of view?