The extended rates element is only needed if there are more than 8 rates to report - which is normal for G operation, but not necessary. It only exists because a particularly popular old 11b MAC codebase crashed when the normal rate element had more than 8 elements, and this hurt interoperability with early G AP implementations - so the spec was changed.
Simon -----Original Message----- From: Michael Wu [mailto:[EMAIL PROTECTED] Sent: Saturday, September 16, 2006 10:05 AM To: mabbas Cc: Simon Barber; netdev@vger.kernel.org Subject: Re: [d80211] connecting to B-mode AP On Friday 15 September 2006 19:50, mabbas wrote: > I see your point here, although some one will file some bugs against > the driver about showing G while associating with B-mode AP. By the > way how can you figure if the AP is B/G other than the rates? > IIRC, only 802.11g APs will send the extended rate information element, though I don't know if forcing 802.11b on the AP will cause it to stop sending that. (but it might still be okay if it doesn't - it's still a 802.11g AP, with the faster speeds turned off..) -Michael Wu - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
