I found the problem, thanks for all the help (I learned a lot again!).

The problem?  I was running the Folding@Home program under Linux emulation.

Now, I don't know -why- this was the problem, because this machine is a
1.1 GHz Athlon with 1G of ECC memory.  And when I run setiathome in the
background at priority 20, it basically only soaks up unused cycles.

Things like nttcp and netstat -in -I epic0 showed no errors, just slow
performance.

I'm not sure where to go with this at this time...

-Mike


p.s. Now A's througput is also now 950KBytes/sec on 10 Mb/s LAN.

On Tue, 14 Jan 2003, Steven M. Bellovin wrote:

> In message <20030114080250.GA10566@mud.stack.nl>, Martijn van Buul writes:
> >Mike Cheponis wrote:
> >> I have 3 NetBSD machines, all connected with 10 base-T, call them A, B,
> >> and C.
> >>
> >> A's FTP throughput get (bits going into machine) 110 KB/sec
> >>                    put (bits leaving machine)     60 KB/sec
> >>
> >> B's is around 950KB/sec, get or put
> >> C's is around 560KB/sec, get or put
> >
> >This reminds me of a problem I had myself. I had 4 machines on a hub,
> >and throughput between A and B was dead slow (4 KB/s, if at all). However,
> >A-C, A-D, B-C and B-D was going as expected. I even managed to get things
> >worked around by screwing up A and B's netmask, and having them route
> >everything through my router.
> >
>
> That sometimes indicates a full/half duplex mismatch.
>
> 		--Steve Bellovin, http://www.research.att.com/~smb (me)
> 		http://www.wilyhacker.com (2nd edition of "Firewalls" book)