[Soekris] Weird Problem on eth0 with 4521

Soren Kristensen soren at soekris.com
Wed Nov 27 05:23:15 UTC 2002

Hi Jim,

Jim TerWee wrote:
> I ran into a weird problem with the 4521 board today as we setting up a
> new tower. I was going to use two 4521 boards in a wireless installation
> tied together though the eth0 port. The bandwidth between the boards
> though the eth0 ports is terrible on one direction 2-3 kbs but will run
> 17mb the other direction tested both with a crossover cable, switch and
> a hub. Not a big deal probably had a bad board being in a rush pulled
> the flash disks popped in two new board's reinstalled flash disks same
> problem as before. So now, we go back to the office set up two more 4521
> boards' different flash disks different cable different switch etc. same
> problem. Now I took two 4511's off the shelf used the same flash disks I
> used in the 4521's and see 35mb plus both ways in the 4511. Going
> further I tried one 4521 hooked to a 4511 works great. Tried several
> windows boxes testing to the 4521 works great. The only time I have a
> problem is when I hook two 4521's together though the eth0 ports. I
> probably have 20 plus 4521's in the field with eth0 servicing the
> network in the building and not seen a problem either.
> Any Ideas??

Sounds like the "short cable issue" described on the soekris website....



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