From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com [IPv6:2607:f8b0:4003:c06::231]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 9498B21FD42 for ; Fri, 7 Aug 2015 03:09:21 -0700 (PDT) Received: by oiev193 with SMTP id v193so23014655oie.3 for ; Fri, 07 Aug 2015 03:09:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=QGlK0tTcIJjFI5RKzblrUfSogwEJjKMWfMjke0Z4zO8=; b=Y6khfirY79498BDVL7NfBArd5lpfaJ43lbmPyAP7CX+XeJmWtvWPHdOuHdFhHsAg+a tzKeMqeudwEk/uJDRgbQ2gjpZ/fO1pJofZQE56Ma0gXZHo8xjnFhB8eeezs9p21ZIAuE ilxj8dKQ4i2Oa7fQPTQei7/bYgyw45nTbS+/GsfRmA24cUmT0yLnetIf+aZAmiuCX53r TLrWU7xFnaUKleN/pgIXwVam3L4lTBt7qQ5BubFdn8PK/nvk9GrlGscJ9nO4016SIIDz UqU+UidKfnHNGQAL35hkUZaZq5/K7KZo/YtsSZpRkFbMTFkPFi/O05FsNxsR9Fi4OMwo 6MMA== MIME-Version: 1.0 X-Received: by 10.202.129.70 with SMTP id c67mr5657800oid.42.1438942160608; Fri, 07 Aug 2015 03:09:20 -0700 (PDT) Received: by 10.202.108.12 with HTTP; Fri, 7 Aug 2015 03:09:20 -0700 (PDT) In-Reply-To: <55C47A29.5010402@ftw.at> References: <55BFBBF1.4080709@lena.im> <20150805125746.GR25597@medion.lan> <55C47A29.5010402@ftw.at> Date: Fri, 7 Aug 2015 12:09:20 +0200 Message-ID: From: Dave Taht To: make-wifi-fast@lists.bufferbloat.net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [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 10:09:49 -0000 ---------- 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 On 05.08.15 14:57, Bastian Bittorf wrote: > Does e.g. a client gets informed about a congested network Exactly. It allows nearby clients/nodes to make MUCH better decisions. [1] > or in other words: does it solve a problem? ### Essentially, very small local channel utilization measurement reports are broadcasted to all direct neighbors by piggybacking them onto IEEE802.11 beacons. [2] ### 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. So, we think this feature could be really helpful. It increases the networks capability to self-regulate, for a small price. [4] -paul PS: Arthur did all the hard work, I'm just doing the cheap talking. [1] that is probably the reason for recent AP models in the enterprise segment already broadcasting it. [2] channel utilization measured at the receive antenna port of the device that is sending that beacon. [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. [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. _______________________________________________ Battlemesh mailing list Battlemesh@ml.ninux.org http://ml.ninux.org/mailman/listinfo/battlemesh --=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