Scott,
Isn't this exactly what we are talking about on the other thread ?
For this discussion AP = Access Point rather than APO etc
AP > client
Your client does not hear many other client transmissions cos its got
directional antenna pointing towards AP, or not many clients nearby etc. So
when AP transmits, it can hear it no probs, no retries. Good bandwidth
Client > AP
AP hears all the clients - thats its job. When your client transmits it
doesn't know that others are also transmitting to it ("hidden nodes" as far
as your client is concerned), the AP does not ACK. the packet is retried.
Poor bandwidth due to retries.
Suggest you check retied packet stats at the client. Does reducing the
value of RTS help ? Say to 200 ? Need to find the balance possibly
----- Original Message -----
From: "Scott" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 26, 2003 5:22 PM
Subject: Re: [smartBridges] upload vs download
> I really hate "me too" emails but we've experienced the exact same
> behaviour. I'm wondering how many people have witnessed this happening.
> This is an ABO to AP link and SimpleNMS shows the following:
>
> The AP client table shows RSSI 92% -17dbm and a link quality of 90%
> The ABO statistics show RSSI 60% -42dbm and link quality 72%
>
> If I understand this properly you would _think_ that you would get higher
> bandwidth from the ABO to the AP (am I right here theoretically ?) but
this
> is exactly the opposite.
>
> This is a 14 mile link which is very stable. From the ABO, download is
over
> 1Mbps but upload is probably 250kbps.
>
> Running 1.4j.6 and 0.01.08
>
> Scott
>
>
> > I have seen this also in some cases so you are not alone. Anyone with a
> > clue as to what is happening here?
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] Behalf Of shoffman
> > Sent: Tuesday, November 25, 2003 6:43 PM
> > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> > Subject: [smartBridges] upload vs download
> >
> >
> > Hi all,
> >
> > Know this has been discussed several times.. hate to repeat an old
topic.
> >
> > Here is scenario:
> >
> > Customer has ABTotal. RSSI 75%, Link quality 95% on its reading. Long
> > Preamble, 5 MBps auto (also tried at 11 Mbps auto).
> >
> > Frag set at two different levels: 512 and 2336 (off)
> > RTS set at two different levels (4combos in all): 128 and 2337 (off)
> >
> > Ethernet card at 10 - 1/2 duplex
> >
> > AP is Cisco 350 - RTS Off, Frag 2336. Signal Strength at 50%.
> >
> > In all cases: Download 600-800 kbps, upload (best with RTS off) 36 kbps,
> > with RTS 8 kbps.
> >
> > Network has RTS on all other devices pointed at that AP at 128.
> >
> > So... thoughts? We are going to re-terminate...go with an outdoor and
> > parabolic.. But is this interfernce? SB device see no other signal,
> > have not sent out an SA yet. All other clients are doing pretty good on
> > this network. We will send an SA out to be sure, but still.....
> >
> >
> > Thoughts
> >
> > Scott
> >
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