Subject: Re: ftp at 4KB/s over 10/100 E-net ?!?
To: None <oinkfreebiker@att.net>
From: Robert Elz <kre@munnari.OZ.AU>
List: netbsd-help
Date: 09/18/2001 17:31:08
    Date:        Tue, 18 Sep 2001 09:53:20 +0000
    From:        oinkfreebiker@att.net
    Message-ID:  <20010918095323.XUUG21828.mtiwmhc24.worldnet.att.net@webmail.worldnet.att.net>

  | On laptop, doing get from tower:   4.19 KB/s
  | On laptop, doing put to tower:   941.09 KB/s
  | On tower, doing get from laptop:   1.28 MB/s
  | On tower, doing put to laptop:    35.43 KB/s

This is the kind of behaviour you expect when one end is half duplex
and the other is full.

  |    media: Ethernet autoselect (100baseTX full-duplex)

So that one is full duplex.

  |    media: Ethernet manual

and that one apparently can't be altered, so you can be pretty sure
it is half duplex (half duplex is standard ethernet, full duplex is
an optional extra...)

Force the tower into half duplex mode, you'll get collisions, and defers,
instead of smashed packets (and TCP retransmits), and everything is likely
to be much much happier.

ifconfig fxp0 media 100baseTX media-opt half-duplex

kre