From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ew0-f43.google.com (mail-ew0-f43.google.com [209.85.215.43]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 302EE200648 for ; Sat, 21 May 2011 11:59:30 -0700 (PDT) Received: by ewy20 with SMTP id 20so2167749ewy.16 for ; Sat, 21 May 2011 12:11:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to:x-mailer; bh=wVAyrA4lPVxDvRBL7WHts4qGaDGcuuB+lx97nsf93H4=; b=wxAuOH2cYUwq6eKPzpbyqm6P0UK2DHmTcqRMPvcdrLXz9pcZhXP+LOFFnCza6j6ZAA ntWvOev6RVIjty3FG5Hg4W/vwzRkBa4xmIKKkQ20KCaqa4OHZbojJ74y+YfMCLEKRJif S4hvsk722YHvupYjSDH0C+PIQuWnjXNWP7HgU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; b=GvHtBiaUV1D6k2vFHs5jUsclxvwYEop+zbkMv4w1qCLsfaE6sPI8KImXB2j5hUmTkQ KcVL2RVw4Mx6hd6bgwUIBWsIzDmS8rxcGdHi9yoTcm9UX+LAFtMjLGmTzulaI8OgVWZV zhhNhqA63nnLtue1rKU5No522wxYpxC1BShoo= Received: by 10.14.10.130 with SMTP id 2mr271984eev.181.1306005095909; Sat, 21 May 2011 12:11:35 -0700 (PDT) Received: from [192.168.239.42] (xdsl-83-150-84-172.nebulazone.fi [83.150.84.172]) by mx.google.com with ESMTPS id y9sm3452563eeh.8.2011.05.21.12.11.34 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 21 May 2011 12:11:34 -0700 (PDT) Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset=us-ascii From: Jonathan Morton In-Reply-To: Date: Sat, 21 May 2011 22:11:32 +0300 Content-Transfer-Encoding: quoted-printable Message-Id: <694BB12A-0720-4CDB-B245-41A7C4E90363@gmail.com> References: To: Dave Taht X-Mailer: Apple Mail (2.1084) Cc: bloat Subject: Re: [Bloat] Applying RED93 in south africa 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: Sat, 21 May 2011 18:59:31 -0000 On 21 May, 2011, at 5:27 pm, Dave Taht wrote: > Experience the pain of the Internet on another continent! (note that = the gw is up on ipv6 as well) Well, it's not very fast in terms of throughput, but the latency seems = to be about as good as I get normally. But perhaps that's because I'm = starting from Northern Europe and so I'm already used to = intercontinental traffic due to the prevalence of US-based servers. I do see occasional brief stalls during the download, but these are = substantially less intrusive than what I get on my 3G modem. They = suggest that packets are being dropped at reasonably regular intervals, = but the TCP is recovering quickly. I can't tell whether RED is = triggering (without ECN) or whether these are tail-drops on a fairly = short queue. Incidentally my download is coming across IPv6, so it may be triggering = the related Linux bug. This shouldn't totally disable the negotiation = though, so more likely there's a broken router in the way. - Jonathan