From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out5.uio.no (mail-out5.uio.no [IPv6:2001:700:100:10::17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 4378A21FD3E for ; Fri, 7 Aug 2015 03:55:08 -0700 (PDT) Received: from mail-mx4.uio.no ([129.240.10.45]) by mail-out5.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1ZNfIn-0004sZ-Sn; Fri, 07 Aug 2015 12:55:05 +0200 Received: from boomerang.ifi.uio.no ([129.240.68.135]) by mail-mx4.uio.no with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) user michawe (Exim 4.80) (envelope-from ) id 1ZNfIn-0006Pc-ES; Fri, 07 Aug 2015 12:55:05 +0200 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2102\)) From: Michael Welzl In-Reply-To: Date: Fri, 7 Aug 2015 12:55:04 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <67652840-BB23-454F-935B-1BCAA8A8766B@ifi.uio.no> References: <55BFBBF1.4080709@lena.im> <20150805125746.GR25597@medion.lan> <55C47A29.5010402@ftw.at> To: Dave Taht X-Mailer: Apple Mail (2.2102) X-UiO-SPF-Received: X-UiO-Ratelimit-Test: rcpts/h 3 msgs/h 2 sum rcpts/h 9 sum msgs/h 3 total rcpts 31818 max rcpts/h 54 ratelimit 0 X-UiO-Spam-info: not spam, SpamAssassin (score=-6.0, required=5.0, autolearn=disabled, RP_MATCHES_RCVD=-1.05, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: 5BAA431491EF7550B11BF31FDAAE2D6538953E7E X-UiO-SPAM-Test: remote_host: 129.240.68.135 spam_score: -59 maxlevel 80 minaction 2 bait 0 mail/h: 2 total 7493 max/h 17 blacklist 0 greylist 0 ratelimit 0 Cc: make-wifi-fast@lists.bufferbloat.net Subject: Re: [Make-wifi-fast] Fwd: [Battlemesh] BSS load element patch X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Aug 2015 10:55:37 -0000 Hi, I find this intriguing: > On 07 Aug 2015, at 12:09, Dave Taht wrote: >=20 > ---------- Forwarded message ---------- > From: Paul Fuxjaeger > Date: Fri, Aug 7, 2015 at 11:28 AM > Subject: Re: [Battlemesh] BSS load element patch > To: Battle of the Mesh Mailing List >=20 >=20 > On 05.08.15 14:57, Bastian Bittorf wrote: >=20 >> Does e.g. a client gets informed about a congested network >=20 > Exactly. > It allows nearby clients/nodes to make MUCH better decisions. [1] Does anybody have information about how this is being used? Any = examples? Cheers, Michael >=20 >> or in other words: does it solve a problem? >=20 > ### > Essentially, very small local channel utilization measurement reports > are broadcasted to all direct neighbors by piggybacking them onto > IEEE802.11 beacons. [2] > ### >=20 > 1) Maintainers could better distinguish causes of link problems [3] > 2) Our current algorithms for rate control, routing and > network-selection could make better decisions if they have access this > "remote channel load" statistic. >=20 > So, we think this feature could be really helpful. It increases the > networks capability to self-regulate, for a small price. [4] >=20 >=20 > -paul >=20 > PS: Arthur did all the hard work, I'm just doing the cheap talking. >=20 >=20 >=20 >=20 >=20 >=20 > [1] that is probably the reason for recent AP models in the enterprise > segment already broadcasting it. >=20 > [2] channel utilization measured at the receive antenna port of the > device that is sending that beacon. >=20 > [3] if LTE-U/LAA/muLTEfire becomes widespread :( we need a way to = detect > that such a nearby non-IEEE80211 source is blocking the channel. >=20 > [4] Currently, OpenWRT sends around 200bytes PSDUs per beacon = (depending > on mode etc). Assuming a 100ms beacon interval and 1Mbit/s, adding > these 7 bytes to them would increase the channel utilization each > beaconing node is generating by less than 0.06% of total airtime. >=20 > _______________________________________________ > Battlemesh mailing list > Battlemesh@ml.ninux.org > http://ml.ninux.org/mailman/listinfo/battlemesh >=20 >=20 > --=20 > Dave T=C3=A4ht > worldwide bufferbloat report: > http://www.dslreports.com/speedtest/results/bufferbloat > And: > What will it take to vastly improve wifi for everyone? > https://plus.google.com/u/0/explore/makewififast > _______________________________________________ > Make-wifi-fast mailing list > Make-wifi-fast@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/make-wifi-fast