When configuring the client's RTS treshold...

"Setting this parameter to a small value causes RTS packets to be sent more often. 
When this
occurs, more of the available bandwidth is consumed and the throughput of other 
network packets is
reduced. However, the system is able to recover faster from interference or collisions 
that may be
caused from a high multipath environment characterized by obstructions or metallic 
surfaces."

The client driver will look at the RTS retries to determine if in "distress" (i.e. not 
associated
to an AP).  A scan is initiated to look for available APs.

This is what we like to call "Distress Roaming".


--- Lalit Kotecha <[EMAIL PROTECTED]> wrote:
> Rupert,
> 
> May I request you to elaborate in little more details about this roaming
> feature?
> 
> Thanks
> Lalit 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Rupert Wever
> Sent: Saturday, February 21, 2004 10:13 AM
> To: balan h; [EMAIL PROTECTED]
> Subject: Re: [BAWUG] RTS threshold question
> 
> Balan,
> 
> Some (if not most) 802.11 NIC clients use this RTS treshold
> to make roaming decisions.  Perhaps that's the reason?
> 
> -RW
> --- balan h <[EMAIL PROTECTED]> wrote:
> > Hi,
> >  The RTS threshold value in many Access ports is set
> > to 2300+ bytes as default value. This is apparently to
> > disable RTS/CTS exchanges. I dont understand why we do
> > this.
> >  Isnt the RTS/CTS exchange used only in the
> > 'Contention Period' of 802.11 where the Access point
> > does no polling? Then shouldnt we enable RTS/CTS
> > exchange most of the time by setting RTS threshold to
> > a low value, to avoid collisions?
> > 
> > 
> > balanh
> > 
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