Hello. I am looking to try and improve, as much as possible, the throughput for some of our office users, who are connecting to Cat 5 infrastructure cabling through the walls (until it can be upgraded to Cat 6). The speeds of the backups for some of the users are extremely slow, and are not able to be completed due to the slow speed. So my goal is to configure the Cisco Catalyst switch they are on to the best possible port speed, and then make sure the computers are configured as well to recognize the fastest speed for data transfer - up and down. So - I know there is an MTU rate that can be set on the switch. From what I'm reading so far, it looks like there is a "Global" setting and then a "System" setting. My first question is 1) how can I tell the current MTU status of the switch? 2) Can the switch be set to a global, port-wide 9000 jumbo setting, without affecting those computers that are NOT set to "jumbo" MTU (still at 1500). and 3) Can the jumbo packet setting be used on only select computers going thru the switch? Additionally - I'm all ears for any other tips on how to increase the throughput for a client workstation through a switch, besides setting it to jumbo packets.