Re: file transfer times


Subject: Re: file transfer times
From: civileme (civileme@mandrakesoft.com)
Date: Tue Apr 02 2002 - 11:47:59 AKST


On Tuesday 02 April 2002 11:19 am, Peter Q. Olsson wrote:
> Hello all-
>
> I have a lan sitting behind a firewall that consists of several linux boxen
> and a Sun ultra2 running solaris. I have found a great disparity between
> file transfer rates among various boxes.
>
> For example, transfering the same 1.2 MB file btwn box A and box B:
>
> going in the direction A -> B I get a transfer rate of ~2000 kB/s
> going in the opposite direction, B->A, I get a transfer rate of ~50 kB/s
>
> This is quite a repeatable result, though of course the numbers vary
> somewhat each time. Still the order of magnitude difference is the same.
>
> Other combinations of boxes show intermediate results ~200-400 kB/s either
> direction. scp also shows similar results, about a factor of 10 btwn
> directions
>
> Any ideas as to what gives here?
>
> PQO
>
> __________________________________________________________________
>
> | Dr. Peter Q. Olsson, |
> | Chief Scientist, Alaska Experimental Forecast Facility |
> | University of Alaska Anchorage |
> | 2811 Merrill Field Drive |
> | Anchorage, AK 99501 |
> | voice: (907) 264-7449 |
> | fax : (907) 264-7444 |
> | olsson@aeff.at.uaa.alaska.edu |
> |__________________________________________________________________|
Hmmm,

Any chance you can swap out the switch and try again?

Civileme



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