From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-x22d.google.com (mail-ie0-x22d.google.com [IPv6:2607:f8b0:4001:c03::22d]) (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 4949121F13F for ; Thu, 16 Jan 2014 07:46:56 -0800 (PST) Received: by mail-ie0-f173.google.com with SMTP id e14so3843602iej.32 for ; Thu, 16 Jan 2014 07:46:55 -0800 (PST) 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 :cc:content-type; bh=ps4es9APQKiTytpH5CUL75eotwxmy0LHgjI2KaVQ3j4=; b=kVpT1NxA8ua4FdUTunPwDLu1ndxCISZHU4tFyh7MvOK1gvdk02dN2z+z3JBkEOP0mH 975vFHty5uYrp2mO8R5GqW3El4K7QJjAqyGkOOmMXoT6I1NhtgYW3gJ3OeGZHo7dzdcS sRi6nyR7dALiUsxQd4WuiSt0CvNKqd4tGJ4Y3St/fcmc3IyiR6HbGimzYK6GKjygMERE mvRluss7rQWyv0o2ctTEVIVtrQVZjL4qUw1TratenrqLiiLgSa5u0pB+nBdK4A/+SYXm rYSMXjovbqtzcFM0gwo9PVEgMdFBEOIXX0+Hqt/MtK8xIK6uOxp1fEnMwmpLc9MRSPXR VgNA== MIME-Version: 1.0 X-Received: by 10.50.154.102 with SMTP id vn6mr10133516igb.15.1389887215413; Thu, 16 Jan 2014 07:46:55 -0800 (PST) Received: by 10.64.248.70 with HTTP; Thu, 16 Jan 2014 07:46:55 -0800 (PST) In-Reply-To: References: Date: Thu, 16 Jan 2014 16:46:55 +0100 Message-ID: From: Aaron Wood To: Sebastian Moeller Content-Type: multipart/alternative; boundary=047d7bd7581ec0b1b104f0185509 Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] Managed to break 802.11n (on a 3800) X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jan 2014 15:47:05 -0000 X-List-Received-Date: Thu, 16 Jan 2014 15:47:05 -0000 --047d7bd7581ec0b1b104f0185509 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable > > > The 5GHz radio on my 3800 seems to be in a very odd state. I'm not > quire sure what state it's in, but it seems to be only doing HT20 1x1. A= nd > in a fairly broken manner at that. > > > > Running the rrul test (over wifi directly to the router as the > netserver), tcp uploads were 25Mbps or so, but download was 5Mbps. > > This is with your mac? Try rrul_noclassification, macosx (at leas= t > 10.8) will not do RRUL fair to a fast host. Why I do not know=85 it alway= s > prioritizes the upload, as if it did not see/trust the downstream marking= s > (heck maybe it is busy using all bandwidth for upstream so that it > literally never sees the markings on the downstream packets..) > > About the other issue I do not know anything... Sebastian, after sorting out the router, it's still biased, but far less so, about a 2:1 ratio between upload and download. Also, my understanding was that with rts/cts, the router was in control of that aspect of things? So the AP should be able to balance those? (or perhaps the swamped load on the router is interfering, I'd need another full-size machine on the wired side of the AP to know for sure. -Aaron --047d7bd7581ec0b1b104f0185509 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
> The 5GHz radio on my 3800= seems to be in a very odd state. =A0I'm not quire sure what state it&#= 39;s in, but it seems to be only doing HT20 1x1. =A0And in a fairly broken = manner at that.
>
> Running the rrul test (over wifi directly to the router as the netserv= er), tcp uploads were 25Mbps or so, but download was 5Mbps.

=A0 =A0 =A0 =A0 This is with your mac? Try rrul_noclassification, mac= osx (at least 10.8) will not do RRUL fair to a fast host. Why I do not know= =85 it always prioritizes the upload, as if it did not see/trust the downst= ream markings (heck maybe it is busy using all bandwidth for upstream so th= at it literally never sees the markings on the downstream packets..)

About the other issue I do not know anything...

=

Sebastian, after sorting out the router, it's still= biased, but far less so, about a 2:1 ratio between upload and download.

Also, my understanding was that with rts/cts, the route= r was in control of that aspect of things? =A0So the AP should be able to b= alance those? =A0(or perhaps the swamped load on the router is interfering,= I'd need another full-size machine on the wired side of the AP to know= for sure.

-Aaron

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