From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x242.google.com (mail-lf0-x242.google.com [IPv6:2a00:1450:4010:c07::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1217B3B260; Fri, 20 May 2016 13:07:52 -0400 (EDT) Received: by mail-lf0-x242.google.com with SMTP id m64so1602433lfd.1; Fri, 20 May 2016 10:07:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HIxnn7II+nt2j+U8x+AkGjPYDUg2alZT7ZI2didPZDA=; b=FH6T+O4PLCwGo7pjN856ruTdS0bmD9hkvXr9TelfAg1P6hizbTWrahMem6eCUq4amv KgyyuNeqrLFnyqKLWIGP88cWptbBqi/JXUe6t/uS14KXkCtlwXbicJyrevZ8j5VNlkdf a6C3A+frNeEeMMW/A59GlFvyEJJrTnntfiw0xjkSzCbnnj8FBOar1Z/cGPGOFn+d36De qTkZpvLx2vco3RS7wPnrXamfA5ATe+q3g7XAP/WQd3NqBF96JVFbP3g5cMajEoV3aI58 go9iQNEW8j+KRtC9ybbpySJBAyNxGoSsH0p2Zvw5HeKJo6zMRyTOExCn6g/Ep9ggsRgl 7Jew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=HIxnn7II+nt2j+U8x+AkGjPYDUg2alZT7ZI2didPZDA=; b=iNoZmqJqqkGK/O+t0Kb/WclLp4zZKDIzdVCDvl13iGWde0OMRDy4mHzgnvuYJy+b03 Wlwwh5B3iANzW1TFLDok9SyHj7oDTlGMDgpSU+q4Z29d3HzklVBOrFSUalLp9pgFa56d 5AV/VTGYBH6LPREIV/cBrEcUkzebhXT8xMpqDUZoiGeOksMEjNBWtoKsJh5mI1QkRtkR ta0ZhtM1EM9d1zBqG7Ke9j/PFYF7QIrr/RTrIfBqUIfKTYND9qypGzbYzUuVGRqCFpRv 4w3tBuBCdwrGoaruZNHRRk0bcxwZWY12sSjUnLAwBYgOQS8Fq4dKcWL5h/QfA/zExxEe iOwA== X-Gm-Message-State: AOPr4FXz1u7Z68PLhamT+lhNp78UuWw4SB5WDm890I82TGgnlAhtRMUHNdIVW38XjThdRg== X-Received: by 10.25.218.70 with SMTP id r67mr1564281lfg.50.1463764071986; Fri, 20 May 2016 10:07:51 -0700 (PDT) Received: from bass.home.chromatix.fi (188-67-138-144.bb.dnainternet.fi. [188.67.138.144]) by smtp.gmail.com with ESMTPSA id 66sm3500347lfz.14.2016.05.20.10.07.50 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 20 May 2016 10:07:51 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Jonathan Morton In-Reply-To: <573F42DF.9010108@hpe.com> Date: Fri, 20 May 2016 20:07:49 +0300 Cc: David Lang , cake@lists.bufferbloat.net, codel@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: References: <22371476-B45C-4E81-93C0-D39A67639EA0@gmx.de> <991C8B50-192E-431A-819F-F1C5954FF64F@gmx.de> <4C5D0005-2CAA-4C90-BF0D-7177874872AC@gmail.com> <573F394B.5060009@hpe.com> <26FFB878-5E6B-47B8-8DFD-A8765421655F@gmail.com> <573F42DF.9010108@hpe.com> To: Rick Jones X-Mailer: Apple Mail (2.3124) Subject: Re: [Codel] [Cake] Proposing COBALT X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 May 2016 17:07:53 -0000 > On 20 May, 2016, at 20:01, Rick Jones wrote: >=20 > But I haven't seen that EMSGSIZE happen with netperf UDP tests - could = be though I've never run them in an environment which triggered PTMUD. It=E2=80=99s entirely possible that netperf and/or iperf3 are (ab)using = the IP_MTU_DISCOVERY socket option mentioned. - Jonathan Morton