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ftp xfers slow

From: bv@wjv.com (Bill Vermillion)
Subject: Re: FTP problem
References: <a0hc8o$7sd$1@fe2.cs.interbusiness.it> 
Date: Fri, 28 Dec 2001 16:40:29 GMT

In article <a0hc8o$7sd$1@fe2.cs.interbusiness.it>,
Archetti Luciano <lucarc@provincia.brescia.it> wrote:
>I have UNIX SCO 5,0,5.
>If I make ftp from a PC the serveur UNIX I go to 1000 kb/s.
>If I make ftp from PC serveur UNIX I go to 50 kb/s.
>What could be?

Anyone of a dozen or more things - which could vary from the brand
of NIC being used, settings on the NIC, wiring, hub/switch problem,
and so on.

If your card is set to automatically configure parameters based on
what is sees on the cable, then fix it to the known methods your
system can support.   One major problem is the auto-negotiation
which sets the full/half duplex - and while you can get data
flowing between mixed duplex setups at time - it will be slow.

The other is the auto-sense, which tries to determine the speed
of the network whether you are running at 10Mbs or 100Mbs second.

Lock all settings to start with and go from there.

Some NIC cards are really flaky too.  And you gave no indication of
what that might be.

For anyone who wants to more than they really need, you can see
that even the major vendors note that there are complex issues.

http://www.cisco.com/warp/public/473/46.html

It has to do with problems you may encounter with the Cicso
switches and has a lot of information.

Comments?

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