[Click] 802.11 tunning

[dfuste@ac.upc.edu]

Hi John,
thanks a lot for your extra information about the madwifi driver.
I will post how to solve this problem when I have the solution.

david

Mensaje citado por John Bicket <jbicket at gmail.com>:

> Hi David,
> Those are just constants defined in the ieee 802.11 specs and changing
> them won't  do what you want; they are mainly used for calculating the
> duration of packets, but otherwise have no affect on the actual values
> used by wireless hardware.  Some cards allow you to change the mac
> level parameters; I know the madwifi driver has some mechanisms for
> changing difs and sifs to make long distance links function.
> 
> John
> 
> 
> On 4/25/06, David Fuste <dfuste at ac.upc.edu> wrote:
> > Hi all,
> > Currently, I am doing research in the area of wireless ad-hoc networks
> > and more exactly, in some improvements to achieve better operation and
> > functioning of these networks.
> > One of my needs is to be able to "tune" the values of DIFS, SIFS, NAV...
> > parameters of the 802.11 standard. In Click Modular Router, I've found
> > these parameters in "clicknet/wifi.h".
> > So, I just want to know if these parameters (constants in wifi.h) are
> > beared in mind by the kernel (or wireless iface) when click starts to
> > run, or simply are values never used by the kernel of linux (so, they
> > are only nomenclature in wifi.h).
> > I mean, if I change the value of the SIFS for example, will it cause
> > changes in the time that the wireless interface wait for sending ACKs or
> > not? So, does Click can really change the value of the Short Inter Frame
> > Space of the wireless interface?
> >
> > Thanks a lot!
> > _______________________________________________
> > click mailing list
> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >
> >
>