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RE: [Karlnet] KN50 Problem with 8.x firmware

To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] KN50 Problem with 8.x firmware
From: "Kevin Knuth" <kknuth@karlnet.com>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Mon, 24 Nov 2003 18:04:24 -0500
List-post: <mailto:karlnet@WISPNotes.com>
Yes I do!

I will forward this to engineering RIGHT AWAY!

Kevin

**************************************
Kevin R. Knuth
Business Development Manager
North America
260-424-9690 Regional Office
614-822-5275 Corporate Office
kknuth@karlnet.com
www.karlnet.com
**************************************
 


-----Original Message-----
From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com] On Behalf Of Bob Hrbek
Sent: Monday, November 24, 2003 3:23 PM
To: Karlnet Mailing List
Subject: Re: [Karlnet] KN50 Problem with 8.x firmware


I've seen the same exact think on my first 3 KN-50 installs.   I
replaced
the Dell cards all three times with older silvers and the links went
from marginally working to working perfectly.

Karlnet....you got your ears on?


-bob
----- Original Message -----
From: "Timothy J. Steele" <tsteele@e-isco.com>
To: <karlnet@wispnotes.com>
Cc: <support@karlnet.com>
Sent: Monday, November 24, 2003 2:10 PM
Subject: [Karlnet] KN50 Problem with 8.x firmware


> Last month there was a post to a thread from Mark McKibbin (see 
> http://lists.wispnotes.com/pipermail/karlnet/2003-October/003153.html
> <http://lists.wispnotes.com/pipermail/karlnet/2003-October/003146.html
> >
> ) in regards to the KN50 "Blackbird" units.  His questions were in
> regards to the poor link quality of the Orinoco Gold cards and other
> cards that have been included with the units.  We have been
experiencing
> similar problems (our units were purchased with Dell TrueMobile Radios
> (Agere chipset Firmware rev. 8.10.1)).  I have been running tests on a
> number of different cards with the KN50.  The following are the
results:
>
> NOTE:  These tests were conducted on live point-to-multipoint 
> connections.  We used all the same hardware for our testing; the only 
> change was the radio card for each test.  The KN50 board was 
> classified as a SOHO CPE with product v1.00-00-073017.  Our average 
> connection speed with a 1024k key is around 700-900k.  The Base units 
> we used for testing are using software versions 4.43 and 4.44.  They 
> have a varied number of subscribers, from 4 (a new site) up to 50+ 
> (our oldest site). On all these tests, the SNR was between 12dB and 
> 18dB upstream to Base and 21dB to 30dB downstream from Base.
>
> Dell Radio:
> Chipset:  Agere
> Firmware ver.: 8.10.1
> PING test (a standard IP tools PING test from a PC through the Base to

> the CPE (100 packets)):  73% of the packets lost Throughput test (5 
> bandwidth tests from 2wire.com and dslreports.com): 278, 112, 245, 
> 237, 298 (speed measured in kilobits)
> NOTE:  The packets lost in the PING test are RARELY noted on the 
> client side (i.e. surfing the Internet, Web Page comes up 
> unavailable).  They just notice a significant slowdown.
>
> Orinoco Gold:
> Chipset:  Agere
> FW ver:  8.72.1
> PING test:  64% lost
> Throughput:  451, 368, 519, 259, 311
>
> Orinoco Silver:
> Chipset:  Agere
> FW ver:  6.6.1
> PING test:  0% lost
> Throughput:  676, 574, 481, 625, 616
>
> Avaya Radio:
> Chipset:  Agere
> FW ver:  6.8.1
> PING test:  0% lost
> Throughput:  550, 447, 380, 571, 561
>
> Wave Wireless Radio:
> Chipset:  Agere
> FW ver:  6.8.1
> PING test:  1% lost
> Throughput:  515, 660, 674, 553, 622
>
> Demarctech Prism Radio:
> Chipset:  Intersil (800C)
> FW ver:  1.3.6
> PING test:  3%
> Throughput 591, 745, 652, 733, 725
>
> At the location where we were doing the final throughput tests, an 
> NDIS install in a local server has the following results: PING test:  
> 1% lost
> Throughput:  725, 989, 867, 967, 802
>
> I realize that the PING test is hardly conclusive, but it definitely 
> coincides with the lower bandwidth connections.  Does anyone else have

> similar findings?  One other point of note is that the PING test on a 
> unit connected to a highly utilized Base has significantly more 
> dropped packets on the Dell and Orinoco Gold cards (i.e.  The cards 
> are noted with a 73% and 64% loss on a Base with 40+ subscribers, 
> these numbers drop to 35% and 23% on a Base with 20 or less clients).

> This would indicate Base unit over saturation, but we can connect a 
> standard NDIS
> (radio) client or a KN100 board and the PING tests and throughput
tests
> are excellent (0% loss, avg. 880k throughput).
>
> It appears that cards running older versions of firmware (6.x.x) do 
> not have the problems that newer firmware (8.x.x) have; at least in 
> regards to the KN50.  I have upgraded the Orinoco Silver card to 
> v8.7.5 firmware and it exhibits the same problems.  I downgraded the 
> firmware and the problem goes away.  Our only option, at this point, 
> is to downgrade the firmware on the newer cards or try to find older 
> silver cards with the external antenna attachment (seeing as how the 
> new silvers do not have them anymore).
>
> I tested the Orinoco Gold and the Dell Radio in a KN100 board with the

> following results:
>
> OG:
> PING test: 0% lost
> Throughput:  714, 784, 987, 966, 908
>
> Dell:
> PING Test:  1% lost
> Throughput:  837, 664, 843, 767, 813
>
> This looks like a problem with the KN50's and newer Agere firmware. 
> Anytime you install 8.x firmware on any radio in the KN50, performance

> is significantly reduced and there is a high amount of IP packet 
> failure.  Our research team would like to know if anyone else concurs 
> with these findings and is there a solution in the works.  If not, is 
> there anymore testing you would like from our end to get this issue 
> resolved?
>
>
> Tim Steele & Marcus Rudd
> Wireless Networking Engineers
> e-ISCO Internet
> www.e-isco.com <http://www.e-isco.com/>
>
> _______________________________________________
> Karlnet mailing list
> Karlnet@WISPNotes.com 
> http://lists.wispnotes.com/mailman/listinfo/karlnet
>

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