On Mon, Apr 26, 2010 at 5:25 PM, Luis R. Rodriguez <mcgrof@xxxxxxxxx> wrote: > On Mon, Apr 26, 2010 at 5:12 PM, John W. Linville > <linville@xxxxxxxxxxxxx> wrote: >> On Tue, Apr 27, 2010 at 01:30:02AM +0200, Felix Fietkau wrote: >>> On 2010-04-27 1:23 AM, John W. Linville wrote: >>> > On Tue, Apr 27, 2010 at 01:23:35AM +0200, Felix Fietkau wrote: >>> >> This is used to configure APs to not bridge traffic between connected stations. >>> >> >>> >> Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx> >>> > >>> > Is this useful? >>> Yes, if you have an AP with lots of users that aren't expected to >>> communicate with each other (e.g. only for internet access), it can save >>> a lot of airtime by not forwarding every broadcast message emitted from >>> any station. >>> I'm sure there are a more situations where this can be useful. >> >> Ah, OK -- I suppose that makes sense. > > In fact technically IEEE-802.11 2007 section 11.7 states "STAs are not > allowed to transmit frames directly to other STAs in a BSS and should > always rely > on the AP for the delivery of the frames", with the exception being > using DLS direct links for QoS STAs. This would prevent the STAs from > going into PS mode for as long duration of the stream. > > If the AP does not support this it would just set the result code for > DLS requests to "Not allowed in the BSS". It does not seem the > standard has a way for an AP to teardown an existing DLS links though > (at no reason code for it), so I guess if we ever support DLS we won't > be able to enable this option if a direct links is already > established. Now that I think about it, why is this even required, why not just enforce this all the time and have an option to disable DLS? Are there ways to enable direct STA <--> STA communication on a BSS other than DLS? Luis -- 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
