On 6/26/11, Geoff Galitz <geoff at galitz.org> wrote: > In short, the entire path from origin to destination must be configured to > support jumbo frames. If not, then the devices at various points in the > path will attempt to scale and you'll end up getting fragmentation and > higher overhead in the devices leading to worse overall performance. > > Have you verified this is the case? I believed so everything along the path supports the MTU size I was testing with. The test path is short, basically NIC -> Lan Cable -> HP 1910 -> Lan Cable -> NIC. The switch is spec'd to support up to 9K jumbo frame, enabled by default based on a FAQ I found on 3Com/HP when trying to figure out where do I turn it on. > Of course, the quality of the driver for your NIC will also play a role. This I have no idea which was why I was wondering about the elrepo driver.