Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:50683 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755165AbZCZIy5 (ORCPT ); Thu, 26 Mar 2009 04:54:57 -0400 Subject: Re: wireless powersaving (in NM?) From: Johannes Berg To: "Luis R. Rodriguez" Cc: Dan Williams , "Guy, Wey-Yi W" , linux-wireless , Kalle Valo , Matthew Garrett , Marcel Holtmann , Jouni Malinen In-Reply-To: <43e72e890903260139k29d9e9a0ub418cdfbaef03418@mail.gmail.com> (sfid-20090326_093918_011896_56866168) References: <1237891149.4320.73.camel@johannes.local> <1237910398.9082.7.camel@localhost.localdomain> <1237979070.4320.156.camel@johannes.local> <1237995072.18896.9.camel@localhost.localdomain> <1237996137.4320.161.camel@johannes.local> <43e72e890903260100w75896d0fi9121f227cc7ca8dc@mail.gmail.com> <1238055060.4331.1.camel@johannes.local> <43e72e890903260139k29d9e9a0ub418cdfbaef03418@mail.gmail.com> (sfid-20090326_093918_011896_56866168) Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-qbbx1pLMY3Oegggk0vBp" Date: Thu, 26 Mar 2009 09:54:21 +0100 Message-Id: <1238057661.4331.16.camel@johannes.local> (sfid-20090326_095517_535881_28019CD0) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-qbbx1pLMY3Oegggk0vBp Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2009-03-26 at 01:39 -0700, Luis R. Rodriguez wrote: > > We talked about that briefly yesterday -- it's not very easy to > > determine this because of the various ways things break: > > > > * one AP sets the broadcast/multicast bit one beacon too late (after > > having already sent the frames) > > * one AP doesn't buffer frames at all > > * one AP doesn't respond to PS-poll frames >=20 > It sounds like all 3 things can be tested for. Yes, but how complicated does it get, and is it worth it to invest that much work for these (hopefully few) ancient APs? johannes --=-qbbx1pLMY3Oegggk0vBp Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJJy0K6AAoJEKVg1VMiehFYcvoQAJ7hc4N92JRIUjOVZILq6zXr kLa0iHl0UiDBqdj+1wB0UBC+GsRItZhHEGg0y6p1gbPg+U7WTQq1Hf3q9z2YtdgP q672ZDbUIl+Qg3cdODzNhRxEHGQMNxRGpg1rs+BnGrj/4uD/AhdDzMbOj4Xy1Xmk PkrnHDAXuiWe8/6i5c6MyWB1J+mKuMdxHEnQxltMWDy/bWCKhUx/pI65tZHheuFN W7VzfBd/Wc/5sAitkTiX/rUFyBb/k8ydbgefY+Pnpsx9tnYFNhG90Z8LP9SkTHqp SCtRZd4QgfomJpb/AqoGaZggeuVHbf0P3UbjKPdvgrOqNmS9QeCIxz1U5XFQzHSe IrU9pxxjnwwKCFACRJRwwrexlTx6lFl78e9TdvM+V4iuNpuLsbIuPOykuIIuJh5n 3ifENYwG4e0uGCbSZvtef2ahUvHUjjINdfLzPUr5dmAnTSzk1/6fmdazmV0KemlP YFKuh2I8gMGOFiTx/t0He2XbeB/woy1Htrc7Ynb/iqMgxukW6ABNPKZwpzAjPCfm Ns4Au5v9VMkyunseILKvrD7sxZttg+oZhWH35r63Ky2SOdYwR7AHo3zWrkb8dqjB ND9M7G4ycZQedrJcO6P3ToHux8yBEh1jRJ8ZYlG0YYOU2fApYIepm8jxbPaDZf1t 8Bi3m5M9ub4uWx+tiKQG =s5Vo -----END PGP SIGNATURE----- --=-qbbx1pLMY3Oegggk0vBp--