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RE: [Karlnet] Strange retransmit problem

To: <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] Strange retransmit problem
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
Reply-to: karlnet@WISPNotes.com
Date: Sat, 14 Dec 2002 13:44:56 -0500
List-post: <mailto:karlnet@WISPNotes.com>
Kevin,

What can we look at to determine if this is the case? Does "In Discards"
or "FCS Errors" help?

I have a setup in which I can simulate the problem if you would like to
look at it.

Thanks,


Dan Metcalf
Wireless Broadband Systems
http://www.wbsysnet.com/
877-685-0578
dan.metcalf@wbsysnet.com


> -----Original Message-----
> From: karlnet-admin@WISPNotes.com [mailto:karlnet-admin@WISPNotes.com]
On
> Behalf Of Demarc (tony) 908-996-7995
> Sent: Saturday, December 14, 2002 1:37 PM
> To: karlnet@WISPNotes.com
> Subject: RE: [Karlnet] Strange retransmit problem
> 
> Kevin
> > We could, theoretically, change TurboCell so that it does not
> > wait for a satellite with problems such as noise, but moves
> > on to others if it can't transmit in say 5 or 10 trials.
> 
> Is there any reason not to have the system default to this setup?
Maybe
> have an option to modify the retry attempts before moving on?
> 
> Sincerely
> Tony Morella
> Demarc Technology Group
> Office: 908-996-7995
> Cell: 908-246-9170
> Fax: 908-847-0202
> email: tony@demarctech.com
> http://www.demarctech.com
> Open Chat Server http://www.demarctech.com:8000
> Yahoo IM: tonymorella
> Wireless Solution Provider
> 
> 
> > -----Original Message-----
> > From: karlnet-admin@WISPNotes.com
> > [mailto:karlnet-admin@WISPNotes.com] On Behalf Of Kevin Knuth
> > Sent: Saturday, December 14, 2002 8:42 AM
> > To: karlnet@WISPNotes.com
> > Subject: RE: [Karlnet] Strange retransmit problem
> >
> >
> > All,
> >
> > I waited for a response from our engineers before I made
> > comment about this issue. Here is what I found out:
> >
> > Most likely there is a noise issue with a particular
> > satellite and thus the transmit/receive has problems and
> > TurboCell keeps polling the same satellite until it can send
> > its packet out. This could be due to an outside noise source.
> > When you lower the speed then the radio's sensitivity
> > increases and it can receive better.
> >
> > We are often asked why the numbers in the Wireless Link test
> > and TurboCell station entries are different.  This is because
> > the Warless Link test is an 802.11 test and the radios can do
> > auto-fallback which causes the link to report a stronger
> > signal than TurboCell can as we disable auto-fallback.  So
> > even though the Wireless link test could show a very strong
> > signal, it may only be set at 1!
> >
> > TurboCell tries to keep all satellites online and not lose packets.
> >
> > We could, theoretically, change TurboCell so that it does not
> > wait for a satellite with problems such as noise, but moves
> > on to others if it can't transmit in say 5 or 10 trials.
> >
> >
> >
> >
> > -----Original Message-----
> > From: karlnet-admin@WISPNotes.com
> > [mailto:karlnet-admin@WISPNotes.com]On
> > Behalf Of Dan Metcalf
> > Sent: Friday, December 13, 2002 11:29 PM
> > To: karlnet@WISPNotes.com
> > Subject: RE: [Karlnet] Strange retransmit problem
> >
> >
> > Fade margin is key, but when you add polling, the radio's
> > don't give any real throughput unless your at 5.5
> >
> > Dan Metcalf
> > Wireless Broadband Systems
> > http://www.wbsysnet.com/
> > 877-685-0578
> > dan.metcalf@wbsysnet.com
> >
> >
> > > -----Original Message-----
> > > From: karlnet-admin@WISPNotes.com
> > [mailto:karlnet-admin@WISPNotes.com]
> > On
> > > Behalf Of Scott
> > Stevens
> > > Sent: Thursday, December 12, 2002 11:02 PM
> > > To: karlnet@WISPNotes.com
> > > Subject: Re: [Karlnet] Strange retransmit problem
> > >
> > > 3 years ago we decided to try turning it down from 11 to 5, little
> > > better...
> > >
> > > I can tell you that myself and MANY other folks out there
> > benefit from
> > > 1-2mbit rates standard, wastes less radio time and let's be
> > honest...
> > In
> > > an
> > > outdoor environment it's not higher speed, it's FADE MARGIN!!!
> > >
> > > --
> > > Scott Stevens
> > > DefactoWireless.com
> > > AIM: wirelesscott
> > > Mobile: 970-274-3070
> > >
> > > "Every product imaginable at fair prices!"
> > >
> > >
> > >
> > > _______________________________________________
> > > Karlnet mailing list
> > > Karlnet@WISPNotes.com
> > > http://lists.wispnotes.com/mailman/listinfo/karlnet
> > > ---
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> >
> >
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> >
> > _______________________________________________
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> > Karlnet@WISPNotes.com
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> >
> >
> > _______________________________________________
> >
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> > Karlnet@WISPNotes.com
> > http://lists.wispnotes.com/mailman/listinfo/ka> rlnet
> >
> 
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