Re: fragmentation threshold support

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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