> From: linux-wireless-owner@xxxxxxxxxxxxxxx [mailto:linux-wireless- > owner@xxxxxxxxxxxxxxx] On Behalf Of Pat Erley > Sent: zaterdag 24 september 2011 17:35 > > On 09/23/2011 11:30 PM, James wrote: > > $ iw dev wlan0 scan > > > > printed this for my N (only) router: > > > > Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 > > Extended supported rates: 6.0 9.0 12.0 48.0 > > > > Why doesn't it print the higher N rates? > > I may be WAY off base here, but I believe iw dev wlan0 scan reports > what's shown in the beacons, and not what rates are actually > negotiable. > Beacons only directly advertise 'pre-n' rates (the basic 802.11abg > rates). I think you pretty close to base here ;-) > If you look at more of the scan results, you should see something like: > > HT capabilities: > Capabilities: 0x11ce > HT20/HT40 > SM Power Save disabled > RX HT40 SGI > TX STBC > RX STBC 1-stream > Max AMSDU length: 3839 bytes > DSSS/CCK HT40 > Maximum RX AMPDU length 65535 bytes (exponent: 0x003) > Minimum RX AMPDU time spacing: 8 usec (0x06) > HT TX/RX MCS rate indexes supported: 0-15 The 11n rates are expressed in MCS (Modulation and Coding Scheme) rate indexes, which translate to a bitrate. So it also advertises 11n rates albeit in a slightly different format. Gr. AvS -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
