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RE: [Karlnet] KN-50 Problem

To: Karlnet Mailing List <karlnet@wispnotes.com>
Subject: RE: [Karlnet] KN-50 Problem
From: Peter Dordik <dordik@presov.viapvt.sk>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Fri, 23 Jan 2004 18:37:17 +0100
List-post: <mailto:karlnet@WISPNotes.com>
Hi,

may be there is big misunderstanding.

Timothy reported, that:

> The KN-50 will reflect in the management software whatever
> version is flashed to the LAN card itself.

Karlnet Support replied:

> Neither the FlashROM nor the KN-xxx overwrite the firmware of the
> card but they do tell the radio to use a version of the firmware
> other than what is currently on the card

> As you mention below the KN-50 does not do this.

So, there is essential question:


IS current KN50 device software able to load proper secondary firmware to RAM 
of Orinoco card?!


If Yes, we must know exact version of this secondary firmware.

If not, then is very important what firmware is flashed to CARD with WSU 
utility. I think, that NEW Orinoco cards are allways loaded with firmware 
incompatible with TURBOCELL.

So , all we need is to flash every Orinoco card used in KN50 with proper 
compatible firmware: 6.08, 7.52, 8.10, 8.74 (thanks for correction) via WSU 
utility. It is very simple.  

I will guess what is the problem if Orinoco card with incompatible firmware is 
used:
Card do es not have support for polling. There is support for CSMA/CA only, so 
card must wait for free medium, before is able to transmit. And this is reason 
of horrible throughput in environment, where is big interference. May be is 
then transmitting with delay and we have "hidden node problem", even if there 
is no interference. Againg, it is only guess.   
  

> The firmware versions loaded over time have been 6.08, 7.52, 8.10 and
> currently 8.74. The radio card itself could have any of the versions in
> between 6.08 and 8.75 and one of the versions mentioned above will be used.
> This also depends on the version of the software loaded to the KarlNet
> device.


Regards
       Peter Dordik

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