windows/linux ftp question... ws_ftp/proftpd

Les Mikesell lesmikesell at gmail.com
Sun Jun 11 21:37:54 UTC 2006


On Sun, 2006-06-11 at 15:58, bruce wrote:

> i was able to get (once) a throughput of ~600-700KBs for a few of the files.
> (i'm moving some ISO files) however, for the most part, i can only get up to
> ~65KBs on a consistent basis...

Usually that kind of speed problem comes from a full/half duplex
mismatch on a switch port somewhere between the systems.  If one
side is forced to full and the other is left at auto, the one on
auto will see the failure to negotiate and fall back to half.
This will drop packets randomly which the TCP layer has to fix
with retries. Old equipment often had to be set manually - and
you'll still find advice recommending that. These days if
something doesn't get it right on auto you should throw it out.

-- 
  Les Mikesell
    lesmikesell at gmail.com





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