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<TITLE>RE: Multicast throughput limited</TITLE>
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<P><FONT SIZE=2>Thank you dave,</FONT>
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<P><FONT SIZE=2>I've tried the iwpriv command to decrease the beacon period but I got the following:</FONT>
<BR><FONT SIZE=2># iwpriv wlan0 prism2_param wlan0 dtim_period</FONT>
<BR><FONT SIZE=2># Interface doesn't accept private ioctl</FONT>
<BR><FONT SIZE=2># prism2_param (8BE0): Operation not supported</FONT>
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<P><FONT SIZE=2>I'm using the following Linksys PCI WMP11, hostap-2002-09-12, wireless-tools-25-1.</FONT>
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<P><FONT SIZE=2>Do you know how can I get the AP firmware ?</FONT>
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<P><FONT SIZE=2>Guilaume</FONT>
<BR><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: Dave Edwards [<A HREF="mailto:Dave.Edwards@abicom-international.com">mailto:Dave.Edwards@abicom-international.com</A>] </FONT>
<BR><FONT SIZE=2>Sent: Friday, November 22, 2002 6:36 PM</FONT>
<BR><FONT SIZE=2>To: Bichot Guillaume (Princeton)</FONT>
<BR><FONT SIZE=2>Cc: hostap@shmoo.com</FONT>
<BR><FONT SIZE=2>Subject: Re: Multicast throughput limited</FONT>
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<P><FONT SIZE=2>Hi Guillaume,</FONT>
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<P><FONT SIZE=2>I've seen the same thing with a PrismII card running in hostAP mode (not using hostap code). I'm fairly sure that this is related to the card firmware, as it appears that broadcast and multicast traffic are delayed until the next beacon frame. The AP firmware has the ability to overcome this limitation but the standard Station firmware does not.</FONT></P>
<P><FONT SIZE=2>If you try decreasing the period between frames, does the throughput increase?</FONT>
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<P><FONT SIZE=2>Hope this helps</FONT>
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<P><FONT SIZE=2>Dave</FONT>
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<P><FONT SIZE=2>Bichot Guillaume (Princeton) wrote:</FONT>
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<P><FONT SIZE=2>Hi all, </FONT>
<BR><FONT SIZE=2>I've detected that multicast traffic is limited by the access point (hostap-2002-09-12 + PCI Linksys WMP11). </FONT>
<BR><FONT SIZE=2>Does it come from the firmware or the driver ? </FONT>
<BR><FONT SIZE=2>Guillaume Bichot </FONT>
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