From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp129.dfw.emailsrvr.com (smtp129.dfw.emailsrvr.com [67.192.241.129]) (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 4659421F2BF for ; Tue, 17 Mar 2015 21:34:33 -0700 (PDT) Received: from smtp25.relay.dfw1a.emailsrvr.com (localhost.localdomain [127.0.0.1]) by smtp25.relay.dfw1a.emailsrvr.com (SMTP Server) with ESMTP id B6C7B380107; Wed, 18 Mar 2015 00:34:32 -0400 (EDT) Received: by smtp25.relay.dfw1a.emailsrvr.com (Authenticated sender: dpreed-AT-reed.com) with ESMTPSA id 2D4963800FF; Wed, 18 Mar 2015 00:34:32 -0400 (EDT) X-Sender-Id: dpreed@reed.com Received: from [100.102.60.36] (14.sub-70-197-10.myvzw.com [70.197.10.14]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA) by 0.0.0.0:465 (trex/5.4.2); Wed, 18 Mar 2015 04:34:32 GMT User-Agent: K-@ Mail for Android X-Priority: 3 In-Reply-To: <123130.1426635142@turing-police.cc.vt.edu> References: <20150316203532.05BD21E2@taggart.lackof.org> <123130.1426635142@turing-police.cc.vt.edu> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----014BUKZ5CF61DP46Z160GV9Q7R5OUC" Content-Transfer-Encoding: 7bit From: "David P. Reed" Date: Tue, 17 Mar 2015 21:34:30 -0700 To: Valdis.Kletnieks@vt.edu,Matt Taggart Message-ID: Cc: cerowrt-devel@lists.bufferbloat.net Subject: Re: [Cerowrt-devel] DOCSIS 3+ recommendation? 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: Wed, 18 Mar 2015 04:35:02 -0000 ------014BUKZ5CF61DP46Z160GV9Q7R5OUC Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable It is not the cable modem itself that is bufferbloated=2E It is the head en= d working with the cable modem=2E Docsis 3 has mechanisms to avoid queue bu= ildup but they are turned on by the head end=2E I don't know for sure but = I believe that the modem itself cannot measure or control the queueing in t= he system to minimize latency=2E You can use codel or whatever if you boun= d you traffic upward and stifle traffic downward=2E But that doesn't deal w= ith the queueing in the link away from your home=2E On Mar 17, 2015, Vald= is=2EKletnieks@vt=2Eedu wrote: >On Mon, 16 Mar 2015 13:35:32 -0700, Matt Ta= ggart said: >> Hi cerowrt-devel, >> >> My cable internet provider (Comcast)= has been pestering me (monthly >email >> and robocalls) to upgrade my cabl= e modem to something newer=2E But I >_like_ >> my current one (no wifi, bat= tery backup) and it's been very stable >and can >> handle the data rates I = am paying for=2E But they are starting to roll >out >> faster service plans= and I guess it would be good to have that option >(and >> eventually they = will probably boost the speed of the plan I'm paying >for)=2E >> So=2E=2E= =2E >> >> Any recommendations for cable modems that are known to be solid a= nd >less >> bufferbloated? > >I've been using the Motorola Surfboard SB6141= on Comcast with good >results=2E >Anybody got a good suggestion on how to = test a cablemodem for >bufferbloat, >or what you can do about it anyhow (gi= ven that firmware is usually >pushed >from the ISP side)? > > >------------= ------------------------------------------------------------ > >___________= ____________________________________ >Cerowrt-devel mailing list >Cerowrt-d= evel@lists=2Ebufferbloat=2Enet >https://lists=2Ebufferbloat=2Enet/listinfo/= cerowrt-devel -- Sent with K-@ Mail - the evolution of emailing=2E ------014BUKZ5CF61DP46Z160GV9Q7R5OUC Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable It is not the cable modem itself that is bufferblo= ated=2E It is the head end working with the cable modem=2E Docsis 3 has mec= hanisms to avoid queue buildup but they are turned on by the head end=2E
I don't know for sure but I believe th= at the modem itself cannot measure or control the queueing in the system to= minimize latency=2E

You can use cod= el or whatever if you bound you traffic upward and stifle traffic downward= =2E But that doesn't deal with the queueing in the link away from your home= =2E

On Mar= 17, 2015, Valdis=2EKletnieks@vt=2Eedu wrote:
On Mon, 16 Mar 2015 1=
3:35:32 -0700, Matt Taggart said:
Hi cerowrt-devel,

My cable internet provider (Comcast) has been pestering me (mon= thly email
and robocalls) to upgrade my cable modem to so= mething newer=2E But I _like_
my current one (no wifi, ba= ttery backup) and it's been very stable and can
handle th= e data rates I am paying for=2E But they are starting to roll out
faster service plans and I guess it would be good to have that op= tion (and
eventually they will probably boost the speed o= f the plan I'm paying for)=2E
So=2E=2E=2E

Any recommendations for cable modems that are known t= o be solid and less
bufferbloated?

I've been using the Motorola Surfboard SB6141 on Comcast with goo= d results=2E
Anybody got a good suggestion on how to test= a cablemodem for bufferbloat,
or what you can do about i= t anyhow (given that firmware is usually pushed
from the = ISP side)?

=

Cerowrt-devel mailing list
Cerowrt-dev=
el@lists=2Ebufferbloat=2Enet
https://lists=2Ebuf=
ferbloat=2Enet/listinfo/cerowrt-devel

-- Sent with K-=
@ Mail - the evolution of emailing=2E


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