From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.22]) (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 50AE13CB35 for ; Mon, 13 May 2019 05:16:16 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1557738972; bh=uJOS9E8Iv76qBTR+yKBliMPa+zOPDYoAqQXuNGO3evo=; h=X-UI-Sender-Class:From:Subject:Date:References:To:In-Reply-To; b=G5jLpYz65GF0+Cg0V32ttN0INcMES9nnft70Z0SITShf52xNvGhqk/qdzbiJ1r/N1 5lIiyS4DmVapACI8/p0KFmU3TWNM5EZ0qKpM95qPY70w2qp/fjiXeWhMRXJXCYmJsK rU1SAiDBtsQhqBqNhTeMSbJD3+Q5WBmV4JVOPtI0= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [10.11.12.12] ([134.76.241.253]) by mail.gmx.com (mrgmx102 [212.227.17.168]) with ESMTPSA (Nemesis) id 0Mb31L-1h6fR92thL-00Ke1K; Mon, 13 May 2019 11:16:12 +0200 From: Sebastian Moeller Content-Type: multipart/alternative; boundary="Apple-Mail=_F2761B88-3DD0-4A49-923C-2B119B0D4310" Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\)) Date: Mon, 13 May 2019 11:16:12 +0200 References: To: bloat , Neal Cardwell In-Reply-To: Message-Id: X-Mailer: Apple Mail (2.3445.104.8) X-Provags-ID: V03:K1:SQd5kMGKuJnEF57Ipzcl6eYRsT9P+IDPu290E/SRN/t14Y1GAiA lg96U4ud5Y1Ayj+df6WX032jhSUczMdz2aDR7WTVI6O71lL5TobdxclyJFdZHCt13QCnmX0 u3ybmcI4ylrEdV29mES+UorS2H5ycapya4aS/Pu1yTS476r1CuMKlKAD72/Q3I9tf9JmLaB SCatw0wlEQr1K3ZgByGAA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:A3OhGyFIeXw=:SvGkIbRwZNA6Ma16fg93dn 9iEYvXK3VU59OlrmwRUJFWw/nLHw09rf/fqs23Q0hjrTNtM9XE3dxSkVLnOu24I4C7AuzZJp5 aFWR69/2wY+4FwQ2Znsrwi+PgACYTSlCx9FEulsYOiL77aRyeVoyjVJakfcK85+Gt9RvrOJnW zzYSiKhqPVjawOXDBMXFO1Tu3z6QLnsMjn/2LuKIL7FVPtfM2wWhCsspR3iwTK7STV5audRne jQPC9atIEUQbMTwwpLYvc6UrkynU1w9ND7SM1W8cHB1LvP9N3SHd5mMP0ozrjdmwFo9VixLQw 69tBwSUWj2j5q2GXhSVds1mT+f8gCnDAda0t8uJ6lH83mmE7BYj8vll/fpe5dZC6c6LVrho1p 8mM5Q8exB8Q5B4yjOq5m0a8jIwnOAvPV8FpYqevpFPJG1RTN+NxW7r0uKGzipcpUj/BKxa45t ibndZMBvRSbW9sD9hmdNH66b4y/DuficiL6Me0DIKVbQaYZlaO7/BzGWDF1lT7CMqKQWStTww yys/2QGRXx8RQfnaednqJJuV+fTMiNInfurV+c0Pk/tSZbF/oDlVeOgXsOnJ4dVTb6+qUWwTO G+s3uJKDEAPKQh92QxWsN71sy3oWNd4zcy2+pPugPvgTgPWRecHT5d2V3O+iaoPY7CcNhsQBV A+AOcYpxNslCSwhSUC7qpLVYdfATeXR+YLeh2tYH2jsQohZJHdY93q6pPepoin91/+Vg3M9w4 u5FQ6Zj0Gdch3+JDn3c12kuOxeXM1vdnxDMRD3zmgdc4Q84bnpzHyhXcvhczZUQyz0u5oTMm4 7g2Zp87k+91wVJGMHGk8tA+uVueLCkJB16YF8T+eGwPXPm5GS+zA7TVvJ2mMnMSzPmI0JaPPP ueEo3ufdgrledf7Anb9OmSYtP2DfpowjZ92Vlzv50kOOtNoXUiNO4GCNeAMnAzYeoXqI6qjYA zH8Pwaw88FQ== Subject: Re: [Bloat] DOCSIS cable modems that support PIE? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 May 2019 09:16:16 -0000 --Apple-Mail=_F2761B88-3DD0-4A49-923C-2B119B0D4310 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi Neal, As far as I can tell the PIE aqm is mandatory in all DOCSIS 3.1 CPEs, do = Al you need is a modem certified for 3.1 and probably also an DOCSIS ISP = supplying 3.1 services (I assume the AQM will only be engaged in a = docsis 3.1 environment), as in DOCSIS the ISP basically has control over = the CPE, so you would need their cooperation. Not every DOCSIS ISP will = provision any customer modem, but I assume you have enough leverage to = make this happen. Anyway according to the spec sheets: AVM Fritzbox 6591 Netgear CM1000-1AZNAS Arris SB8200 Motorola MB8600 should give you what you want. Best Reards Sebastian P.S.: I would love to hear your results, as information about the = effects of docsis pie in the wild is quite limited... On May 12, 2019 11:24:50 PM GMT+02:00, Neal Cardwell = wrote: Anyone have a pointer to a cable modem model that is available for = purchase and implements the DOCSIS 3.1 PIE mechanism? (So far, my = searches for this have only found other people asking this question, = rather than the answer. Apologies if I missed something that should be = easy to find.) I'm curious to have one for testing with BBR v2. I'm aware of the Linux = PIE implementation, but it would be nice to have the actual cable modem = version to play with as well. Thanks! neal --Apple-Mail=_F2761B88-3DD0-4A49-923C-2B119B0D4310 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
Hi Neal,

As far as I can tell = the PIE aqm is mandatory in all DOCSIS 3.1 CPEs, do Al you need is a = modem certified for 3.1 and probably also an DOCSIS ISP supplying 3.1 = services (I assume the AQM will only be engaged in a docsis 3.1 = environment), as in DOCSIS the ISP basically has control over the CPE, = so you would need their cooperation. Not every DOCSIS ISP will provision = any customer modem, but I assume you have enough leverage to make this = happen.

Anyway = according to the spec sheets:
AVM Fritzbox = 6591
Netgear CM1000-1AZNAS
Arris SB8200
Motorola MB8600
should give you = what you want.

Best Reards
Sebastian

P.S.: I would love to hear your = results, as information about the effects of docsis pie in the wild is = quite limited...


On May 12, 2019 = 11:24:50 PM GMT+02:00, Neal Cardwell <ncardwell@google.com> wrote:
Anyone have a pointer to a cable modem model = that is available for purchase and implements the DOCSIS 3.1 PIE = mechanism?  (So far, my searches for this have only found other = people asking this question, rather than the answer. Apologies if I = missed something that should be easy to find.)

I'm curious to have one for testing = with BBR v2. I'm aware of the Linux PIE implementation, but it would be = nice to have the actual cable modem version to play with as = well.

Thanks!
neal

= --Apple-Mail=_F2761B88-3DD0-4A49-923C-2B119B0D4310--