Ahh.,..  I see.  I have Cisco AP's currently and was in the process of 
Beta testing APPro's..  so didn't have that insite yet.  That is a 
SERIOUS need.  SB?  Can you add that to the wish list?



-----Original Message-----
From: phantam <[EMAIL PROTECTED]>
To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
Date: Mon, 23 Jun 2003 18:15:27 -0400
Subject: RE: [smartBridges] speed

> Missing Feature I have been complaining about since day 1 was a minut
> problem but atleast I'm not the only one with questions in terms of it.
> The
> thing is on the AP it doesn't tell you what speed each client is
> connected
> to it at only that they are connected and at what quality but I can't
> tell
> if it's a 1mb high quality link or an 11mb high quality link I'm
> talking
> wire speed not throughput.
> 
> Chris
> 
> -----Original Message-----
> From: Oliver Leamy [mailto:[EMAIL PROTECTED] 
> Sent: Monday, June 23, 2003 6:03 PM
> To: [EMAIL PROTECTED]
> 
> Sorry, cannot agree with that statement.  Just because a system uses
> half-duplex does not mean that the speed is halved.  It will only be
> halved if the acknowledgement packets are of the same length as the
> transmission packets and this is very rarely the case.  For example, if
> you send blocks of 10k and the acknowledgement packet is only 0.1k then
> the time spent transmitting will be about 100 times longer than the
> time
> spent receiving (even considering the time spent switching between
> transmit and receive and the overhead in synchronizing.
> 
> We did a lot of tests on this matter to try and determine some rule of
> thumb that we could use.  We had heard that 60% would be a suitable
> value to use, but in our tests we never got above 40% i.e 4Mbps for
> 802.11b but and 20Mbps for 802.11g
> 
> The above tests were all carried out in a single room with no other
> 2.4GHz equipment turned on within miles (tests were done on islands).
> We were getting nearly 100% in terms of signal strength and link
> quality.  However, there was the possibility of reflections from the
> walls of the room causing problems which we had no way of
> investigating.
> Last week-end we miraculously got in excess of 40Mbps in an outdoor
> environment using 'g' equipment over a distance of about 100 meters.
> This was noted as an 'accidental' sidebar to a bigger test and we have
> not yet had a chance to re-check the figures.
> 
> Hope my ramblings are of some help and did not sow seeds of confusion.
> 
> Oliver Leamy
> 
> Ogenek Teoranta, Ballingeary, Macroom County Cork
> +353 (26) 47808 ; +353 (86) 8337664
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Company 2210
> Sent: 23 June 2003 21:56
> To: [EMAIL PROTECTED]
> Subject: Re: [smartBridges] speed
> 
> Yep. Wireless is half duplex, so whatever your getting divide by 2 to
> get
> realistic full duplex throughput.
> 
> ----- Original Message -----
> From: "Roger Howard" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, June 23, 2003 9:49 PM
> Subject: [smartBridges] speed
> 
> 
> > Is there any way to tell what speed an airBridge is connected at
> without
> > doing a speed test? If it's connected at 1Mbps am I right in assuming
> that
> > the actual throughput will be about half that?
> >
> > Thanks,
> > Roger
> >
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