From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.21]) (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 F00A83B2A4 for ; Thu, 21 Jun 2018 07:14:56 -0400 (EDT) Received: from [172.16.11.169] ([134.76.241.253]) by mail.gmx.com (mrgmx103 [212.227.17.168]) with ESMTPSA (Nemesis) id 0MRGvT-1fcw6a1P0J-00UWhM; Thu, 21 Jun 2018 13:14:55 +0200 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.4 \(3445.8.2\)) From: Sebastian Moeller In-Reply-To: <03A702AD-5CC1-42CD-A9BF-783E3183AEF5@gmail.com> Date: Thu, 21 Jun 2018 13:14:54 +0200 Cc: bloat Content-Transfer-Encoding: quoted-printable Message-Id: References: <03A702AD-5CC1-42CD-A9BF-783E3183AEF5@gmail.com> To: Rich Brown X-Mailer: Apple Mail (2.3445.8.2) X-Provags-ID: V03:K1:MuICPhPXcfF0CwCy11UmtE8a35OexheRDk89nEx/ejErOdDMOvH yokFGUo9KEif+AssrFDkR3ecc2vqjEhY2wA97mZAczN7FKx15FqFaz+W2Np3UQQnZJcxyiB +jOGBrkYrQ3OWRVKtm9Fe/PzRjcAW7OFDfN4rnZzeZVqBcsqDrCeR9g6oyEvnQVzX/8zIRp 5SfDCy3IR6hKPp1Jdg2lg== X-UI-Out-Filterresults: notjunk:1;V01:K0:HVPjKP3II44=:KsSAR/vNLPap12Wsrkyz9x Wr+TbseqEgo4PjeTzcXfnQk6OmmnFsvlqwR1cwVBx/G5Txl2AAOQpMKzNKBiqs5yKLdPazuEw XmIPMfHJYIXntLpdxw2j6QJQ20BWtwDCrCrv3FO0Tn2JSl2ASWRDnn7VcCf5NgLGAwb72jhDw 4mlr7I7gUzd9lna58wbvu3rfvwSzTKJRQqK4Ybp79fRlKtdqzjxR5oc+QpLAnmd0xyklJaSe1 Xz2J649OzlyEyEEEGh1FNrNayhvYsfzCzQBAjJmcj4woiGoGeRKrvJswEVCw/JfKyqvnipQcZ KbbVS3LnNGkdklOXJ1NXXNTxdTr540D14XFPMczO2CW+Dpg1oLqknc+MZIrUlD3dOlelIXELq qYZmvsozOuebcY54+y31Yt5DcnViuIrgD018MWd8HGUcEDWQGF2CeKKAL7uCPc3v6doW1+4tl WPN5uyodM5fK/F5XAoa0XGbqOE7Gjz3y/HPMu7oht2xUyBIRBYb8kI74tDds6oyj4/3s0drH6 iFaABFZ/Sx8Lmiqhvxo2wfl7OMA6JE+XqZl2XymEGPUlOt7u+M2DGt0nC2j1CfT8voVOLp5uZ ZZTbY9/6VuMagtnOgd2xyhv2/UqkYrQBsTU6ksPwomwUOiarFjx1sIEolXjGDWs2q2tK8uC8a Mtg/meON/ycgQVD76ITkKgGYdQ/frhCK/BXjVeCNuF1tBydnC5WOJ2aMpoZvfkbqHXufemGAL ATQFkYaTnA1DP+rbdY6fxHFF3bxFgmnteZreu3o5KqNUen6i68gIWAPSETpSFo0Wj05fOWmnT sz0IuI1 Subject: Re: [Bloat] SQM Settings for Bonded DSL? 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: Thu, 21 Jun 2018 11:14:57 -0000 Hi Rich, > On Jun 21, 2018, at 13:08, Rich Brown wrote: >=20 > Hi folks, >=20 > Our local DSL ISP (Consolidated Communications, Inc, formerly = Fairpoint) recently installed a Smart/RG SR555ac = (https://www.smartrg.com/sr555ac) bonded ADSL2 modem. >=20 > I seem to remember earlier messages stating that the dual queues in = the DSL modem screwed up (or, de-optimized) the SQM in the router.=20 As far as I can see this should not really cause an issue = (besides that latency for single packets will be limited by the fact = that you have two half-total-bandwidth links) except maybe that there = might be additional overhead for the bonding on the link, but I have = never looked at channel bonding so this is pure spekulation. I assume = here that your Modem handles the bonding transparently. I could envision = that running an non-transparent load-balancer (like with mwan3 under = openwrt) might introduce issues for sqm, but if all you see is one = ethernet link to the modem I do not expect any major quirks (except = latency not being in line with the expectancy from total bandwidth). >=20 > The web GUI does provide info on SNR, sync rates, etc. Any advice for = SQM beyond the standard, "measure the no-SQM speed, then start at 5% = below..."? Thanks. I am curius myself and would like to ask you to keep me/the list = posted on whatever you find out about the applicability of sqm to = bonding. Best Regards Sebastian >=20 > Rich > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat