RE: [d80211] connecting to B-mode AP
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
Re: [d80211] connecting to B-mode AP
On Saturday 16 September 2006 01:50, 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? I don't think this will happen. This never happened with bcm43xx, for example. The PHY description of the card is something _completely_ different than the AP's PHY. People know that G is backwards compatible to B. And people who don't even know that, don't care anyway. ;) -- Greetings Michael. - 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
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 pgpcbfmVQ6iNo.pgp Description: PGP signature
Re: [d80211] connecting to B-mode AP
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? Simon Barber wrote: But it's not the AP connection type that determines what rates are available - it's the available rate set - this is independent of whether the card is B or G. A G AP may only advertise B rates, even though it's a G AP. I still don't see any need to change the phytype. Simon -Original Message- From: mabbas [mailto:[EMAIL PROTECTED] Sent: Friday, September 15, 2006 10:19 AM To: Simon Barber Cc: netdev@vger.kernel.org Subject: Re: [d80211] connecting to B-mode AP Simon Barber wrote: Why is it necessary to set phymode to B? - a G client can connect perfectly well to a B AP. We need this information for rate scaling and we need to send the NIC different command depends on the AP connection type. Mohamed Simon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mabbas Sent: Thursday, September 14, 2006 4:25 PM To: netdev@vger.kernel.org Subject: [d80211] connecting to B-mode AP When I connect to b-mode only AP and then run iwconf it shows it as a G-mode AP. I guess when we set frequency it look through all the modes and set the mode to the first channel it founds. since B and G share the same frequencies it will set phymode to G. How can we force it to set phymode to the AP we are associating with. - 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 - 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 - 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 - 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
RE: [d80211] connecting to B-mode AP
But it's not the AP connection type that determines what rates are available - it's the available rate set - this is independent of whether the card is B or G. A G AP may only advertise B rates, even though it's a G AP. I still don't see any need to change the phytype. Simon -Original Message- From: mabbas [mailto:[EMAIL PROTECTED] Sent: Friday, September 15, 2006 10:19 AM To: Simon Barber Cc: netdev@vger.kernel.org Subject: Re: [d80211] connecting to B-mode AP Simon Barber wrote: > Why is it necessary to set phymode to B? - a G client can connect > perfectly well to a B AP. > We need this information for rate scaling and we need to send the NIC different command depends on the AP connection type. Mohamed > Simon > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of mabbas > Sent: Thursday, September 14, 2006 4:25 PM > To: netdev@vger.kernel.org > Subject: [d80211] connecting to B-mode AP > > When I connect to b-mode only AP and then run iwconf it shows it as a > G-mode AP. I guess when we set frequency it look through all the modes > and set the mode to the first channel it founds. since B and G share > the same frequencies it will set phymode to G. How can we force it to > set phymode to the AP we are associating with. > - > 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 > - > 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 > - 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
Re: [d80211] connecting to B-mode AP
Simon Barber wrote: Why is it necessary to set phymode to B? - a G client can connect perfectly well to a B AP. We need this information for rate scaling and we need to send the NIC different command depends on the AP connection type. Mohamed Simon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mabbas Sent: Thursday, September 14, 2006 4:25 PM To: netdev@vger.kernel.org Subject: [d80211] connecting to B-mode AP When I connect to b-mode only AP and then run iwconf it shows it as a G-mode AP. I guess when we set frequency it look through all the modes and set the mode to the first channel it founds. since B and G share the same frequencies it will set phymode to G. How can we force it to set phymode to the AP we are associating with. - 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 - 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 - 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
RE: [d80211] connecting to B-mode AP
Why is it necessary to set phymode to B? - a G client can connect perfectly well to a B AP. Simon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mabbas Sent: Thursday, September 14, 2006 4:25 PM To: netdev@vger.kernel.org Subject: [d80211] connecting to B-mode AP When I connect to b-mode only AP and then run iwconf it shows it as a G-mode AP. I guess when we set frequency it look through all the modes and set the mode to the first channel it founds. since B and G share the same frequencies it will set phymode to G. How can we force it to set phymode to the AP we are associating with. - 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 - 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
