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802.11n Flags and description

Posted: Mon Jun 10, 2013 2:00 pm
by zero_one_zero
Hi,

I am using the latest version of Omnipeek with OmniWifi Dongle and I see a bunch of 802.11n Flags like STBC, Short Guard, etc, Where do I find the description/explanation for these flags in Omnipeek ? I couldn't find it in the help.

For Example:
802.11n flag for STBC is set to 1. Does this mean the frame was captured as STBC frame or it was captured with Rx STBC of 1?

TiA
Zero One Zero

Re: 802.11n Flags and description

Posted: Mon Jun 10, 2013 3:47 pm
by DJWP
Here is a link to the 802.11n draft by the WiFi Alliance which will contain explanations of all the 802.11n flags:

http://www.wi-fi.org/files/kc/WFA_802_1 ... June07.pdf

If the STBC bit is set in a beacon, it just means the AP is capable of using that feature.

Re: 802.11n Flags and description

Posted: Mon Jun 10, 2013 3:57 pm
by zero_one_zero
Hi DJWP,

Thanks for the reply and the link. However, my question is related to Omnipeek's 802.11n Flags field.

I would like to know what the bit fields represent in 802.11n Flags in Omnipeek. It is a 32 bit field and the LSB bit0 when set indicates 20MHz Lower and bit 5 is set when Long GI (Guard Interval) is set.

Where are the descriptions for other bit field values ?

Nishanth

Re: 802.11n Flags and description

Posted: Tue Jun 11, 2013 8:01 am
by DJWP
That information is too large for a forum reply. Please contact Technical Support directly:

http://www.wildpackets.com/support/contact