Jumbo Frame Support
The DGS-2208 switch supports Jumbo Frames up to (9K) in size. Jumbo Frame support is designed to improve network throughput and significantly reduce the CPU utilization of large file transfers such as multimedia files or large data files by enabling more efficient larger payloads per packet.
I just posted the above quote because I disagree with some of the posts in this thread.
I move large file transfers on my home local network, I do see better performance both in transfer speeds and reduction of load on servers at both ends of the transfer. I post this to point out what D-Link thinks, and my experience, so try for yourself. Enable jumbo frames, try it, see if it helps you. It helps me on my home network.