From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-x22f.google.com (mail-wg0-x22f.google.com [IPv6:2a00:1450:400c:c00::22f]) (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 63B4321F202 for ; Fri, 1 Nov 2013 07:36:08 -0700 (PDT) Received: by mail-wg0-f47.google.com with SMTP id c11so4049361wgh.2 for ; Fri, 01 Nov 2013 07:36:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=9ep1cXoNiVn2wEWULL7Th7HQk7QfBWnJWE2bixek4rw=; b=Qx3FGCK/dNQalxiIzAufPvxAc8lDudBWs15MdVzNw6HTAjtRCJwAofGTecL4qleT8W 3QwTPRrnOWGF71SBN/85BNyQebCWiU9gx7qmg8PWymyIrte8Z+AplxMIxGO4GsWNYmHo cPbUmVnW6FEl3Vbr07fZ5K1srq/TWw1Qlq960F8FaiuFnIarsdIs4bEz+hzBEulKX/ws hwh+GcqXjZvqrS+hHw6LocH9PeJ4NXf4Ice+Gr65nsrJRKCYh0Y2E5F0SRrxdhFQbJSH 91lJAQVnVjQxvN/ktvkxSIYiDPCry9leHsxYW2ZObwgHh/qCrPJI/UqZfkqVO3F8VhoT i6Yw== MIME-Version: 1.0 X-Received: by 10.180.89.7 with SMTP id bk7mr2523030wib.32.1383316566306; Fri, 01 Nov 2013 07:36:06 -0700 (PDT) Sender: gettysjim@gmail.com Received: by 10.227.116.197 with HTTP; Fri, 1 Nov 2013 07:36:06 -0700 (PDT) In-Reply-To: <20131031054518.05622406064@ip-64-139-1-69.sjc.megapath.net> References: <20131031054518.05622406064@ip-64-139-1-69.sjc.megapath.net> Date: Fri, 1 Nov 2013 10:36:06 -0400 X-Google-Sender-Auth: Bd-VhR6iSPSYFqt_ADWcWTo6Dxo Message-ID: From: Jim Gettys To: Hal Murray Content-Type: multipart/alternative; boundary=f46d04447e738bfc1404ea1e7cdd Cc: bloat Subject: Re: [Bloat] T-Mobile LTE buffer bloat X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Nov 2013 14:36:09 -0000 --f46d04447e738bfc1404ea1e7cdd Content-Type: text/plain; charset=ISO-8859-1 On Thu, Oct 31, 2013 at 1:45 AM, Hal Murray wrote: > > > My personal record for a mobile network is 180 seconds RTT. They *really* > > *really* want to deliver the packets, and if the radio environment go bad > > they'll still buffer 400 packets (or so). > > I've seen 50 seconds on the big-bad-internet with no radio links. I assume > it was a link down and some box like my DSL modem didn't flush the queue > and/or didn't implement the corner of the RFC that says to bump the hop > count > every second.. > Heh. I've seen > 60 seconds, even on WiFi, in DC on Xfinity WiFi service. I've seen > 20 seconds over the Internet (but with a satellite link in the way) to Peru. Over the Acela wireless, I've seen > 90 seconds (their back haul is 3g or 4g, depending). > > I routinely see not-quite 4 seconds on the download side of a DSL link. > > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > --f46d04447e738bfc1404ea1e7cdd Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable


On Thu= , Oct 31, 2013 at 1:45 AM, Hal Murray <hmurray@megapathdsl.net&g= t; wrote:

> My personal record for a mobile network is 180 seconds RTT. They *real= ly*
> *really* want to deliver the packets, and if the radio environment go = bad
> they'll still buffer 400 packets (or so).

I've seen 50 seconds on the big-bad-internet with no radio links.= =A0I assume
it was a link down and some box like my DSL modem didn't flush the queu= e
and/or didn't implement the corner of the RFC that says to bump the hop= count
every second..

Heh. I've seen > 60 seconds, even on WiFi,= in DC on Xfinity WiFi service.

I've s= een > 20 seconds over the Internet (but with a satellite link in the way= ) to Peru.

=
Over the Acela wirel= ess, I've seen > 90 seconds (their back haul is 3g or 4g, depending)= .
=A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0
=A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0

I routinely see not-quite 4 seconds on the download side of a DSL link.


--
These are my opinions. =A0I hate spam.



_______________________________________________
Bloat mailing list
Bloat@lists.bufferbloat.net<= /a>
= https://lists.bufferbloat.net/listinfo/bloat

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