From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-x229.google.com (mail-ig0-x229.google.com [IPv6:2607:f8b0:4001:c05::229]) (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 0028A21F1CA for ; Tue, 15 Apr 2014 14:30:58 -0700 (PDT) Received: by mail-ig0-f169.google.com with SMTP id h18so324533igc.4 for ; Tue, 15 Apr 2014 14:30:58 -0700 (PDT) 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=90ZMo1AAK1qzpyu1CJ+3GObGPRldhKxEC8aRRC2CT4Q=; b=WDf22jUVWuPdrv+6M1TQ5Pv21BC8vW83JfiPVejaQmte1yNqMKv/j8dsa7XpUKzyBb elekjzr0UX+bWV3CeWOgrlzpHMSbesEw1RdwRO23I+G7CUq+KRHUYKiQdRedQIVFmZYk Mh51ZvGZec3g9FQrFVq3gRMmNv4084p/+Ft6u1Upm1N2V7kxZNs6p/u6yEmzuRcOIXFd ltFFrC1tvhCfZW5LegwztLFfuTsUPvotzU5suF7iWzA/HJKwkdgfvU5zJkkfsCtMTwMc pHwfzSIXzJgJoE3ht1M5JpDhr3N/1hD29ayF5BceI4OO2kIevyfOiFyBAo3Q8pR7vIBb mpGw== MIME-Version: 1.0 X-Received: by 10.50.12.100 with SMTP id x4mr610698igb.15.1397597458202; Tue, 15 Apr 2014 14:30:58 -0700 (PDT) Received: by 10.64.238.70 with HTTP; Tue, 15 Apr 2014 14:30:58 -0700 (PDT) In-Reply-To: References: Date: Tue, 15 Apr 2014 23:30:58 +0200 Message-ID: From: Aaron Wood To: Dave Taht Content-Type: multipart/alternative; boundary=089e0118238a09085704f71b84de Cc: Frits Riep , "cerowrt-devel@lists.bufferbloat.net" Subject: Re: [Cerowrt-devel] Network behavior of Moca bridges 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: Tue, 15 Apr 2014 21:30:59 -0000 --089e0118238a09085704f71b84de Content-Type: text/plain; charset=UTF-8 In about 2 months, I'll have my hands on some HomePlugAV devices that I can do extensive testing with. My previous tests were showing very, very large bufferbloat, when used on poor links (2000ms of buffering and growing over a 1-2 minute rrul test that wasn't able to get over 10Mbps due to SF Victorian wiring issues). -Aaron On Tue, Apr 15, 2014 at 11:05 PM, Dave Taht wrote: > I'd like to note that I've got several private reports of really bad, > oft bufferbloated and (also underbuffered!) behavior on moca bridges, > and if you are in a position to benchmark such, more public data on > the problems would be nice. > > It generally looks like the same folk that designed homeplug products > were involved in moca, with similar behaviors as described below with > hardware flow control and the like, in addition to possible > underbuffering and issues with shared media backoffs... > > http://caia.swin.edu.au/reports/130121A/CAIA-TR-130121A.pdf > > http://caia.swin.edu.au/reports/130417A/CAIA-TR-130417A.pdf > > But we lack hard public data on how the moca devices actually work or > public testing. > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel > --089e0118238a09085704f71b84de Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
In about 2 months, I'll have my hands on some HomePlug= AV devices that I can do extensive testing with. =C2=A0My previous tests we= re showing very, very large bufferbloat, when used on poor links (2000ms of= buffering and growing over a 1-2 minute rrul test that wasn't able to = get over 10Mbps due to SF Victorian wiring issues).

-Aaron

=

On Tue, Apr 15, 2014 at 11:05 PM, Dave T= aht <dave.taht@gmail.com> wrote:
I'd like to note that I've got sever= al private reports of really bad,
oft bufferbloated and (also underbuffered!) behavior on moca bridges,
and if you are in a position to benchmark such, more public data on
the problems would be nice.

It generally looks like the same folk that designed homeplug products
were involved in moca, with similar behaviors as described below with
hardware flow control and the like, in addition to possible
underbuffering and issues with shared media backoffs...

http://caia.swin.edu.au/reports/130121A/CAIA-TR-130121A.pdf<= /a>

http://caia.swin.edu.au/reports/130417A/CAIA-TR-130417A.pdf<= /a>

But we lack hard public data on how the moca devices actually work or
public testing.
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