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SubjectRe: Very poor TCP/SACK performance
Date
> Maybe Linux should reduce the window size if it detects a
> lot of out-of-order packets coming in. If the TCP code has
> a way of knowing the properties of the connection networking
> is done over, it might be able to set these flags itself.
>
> ie: if(small_buffer_other_side && lots_out_of_order()) size--;
>
> Networking guys, what about this?

The solution you describe required an additional telepathic link
between the two modems so you can tell queue drops from lost frames
it also assumes the only bottle neck is the last hop and that the transit
path has a low bandwidth*delay product.

Alan



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