On 2/14/09, Chris <[email protected]> wrote: > Thanks loads for the quick replies. I'll try and respond individually. > Lee > I recently disabled tcp_window_scaling and it didn't solve the > problem. I don't know enough about it. Should I enable it again ? Settings > differing from defaults are copied in my first post.
I don't know if the tcp window size makes any difference when the box is acting as a router. But when UDP works as expected & each additional TCP connection gets 300-600kbps the first thing I'd look at is the window size. If it was a duplex mismatch additional TCP connections would make things worse instead of each getting 3-600Kb bandwidth. > The only other change to the box is that over Christmas IPtables > (ip_conntrack and its associated modules mainly) was loaded into the kernel If all else fails, backing out recent changes usually works :) Regards, Lee

