Re: fragmentation threshold support

I forgot something: i'm using broadcasted frames so
RTS/CTS mechanism is not used and therefore setting
RTSThreshold does not help.

Laurent

> if I let the default mtu=1500 and I try to send
> fragments of 1800 bytes then it looks like no frame
> at
> all is transmitted.
> 
> if I change the mtu with ifconfig wlan0 mtu=2000 and
> then I try to send 1800 bytes long frames I get:
>  hfa384x_usbin_callback: wlan0 rx pipe stalled:
> requesting reset
>  hfa384x_usbin_ctlx: Could not match IN
> URB(0x0001,-75) to CTLX - ignored
>  wlan0 rx pipe reset complete.
> 
> I set the RTSThreshold to 1000 but I could still
> send
> fragments of 1500 bytes as before. Actually I don't
> really understand why you mentionned this
> mibattribute. Thus I also set
> mibattribute=FragmentationThreshold=1000 but once
> again I could still send frames with 1500 bytes
> payload. 
> 
> I send frames using a SOCK_RAW socket.
> 
> any idea?
> 
> Laurent
> 
> > > I'm using wlan-ng 0.2.1 pre26.
> > > I'd like to control the length of the frames I
> > > send(to set a fragmentation threshold). 
> > 
> > wlanctl wlan0 dot11req_mibset
> > mibattribute=dot11RTSThreshold=<whatever>
> > 
> > > frames. But at the same time i can't send frames
> > > much longer than 1500 bytes. 
> > 
> > ifconfig wlan0 mtu <whatever>
> > 
> > mtu is not the same thing as dot11 fragmentation;
> if
> > you're bridging to 
> > ethernet anywhere you'll want to leave it no
> greater
> > than 1500.
> > 
> 
> 
> 
> 
> 	
> 
> 	
> 		
>
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