From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.taht.net (mail.taht.net [IPv6:2a01:7e00:e000:2d4:f00f:f00f:b33b:b33b]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id B868E3CB35 for ; Fri, 17 Sep 2021 23:44:07 -0400 (EDT) Received: by mail.taht.net (Postfix, from userid 1011) id 2CAE822C07; Sat, 18 Sep 2021 03:44:06 +0000 (UTC) Date: Sat, 18 Sep 2021 03:44:06 +0000 From: George Burdell To: Ulrich Speidel Cc: starlink@lists.bufferbloat.net Message-ID: <20210918034406.GA30094@mail.taht.net> References: <008dae7a-6c88-1abf-7281-2b6f189fe5c7@cs.auckland.ac.nz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <008dae7a-6c88-1abf-7281-2b6f189fe5c7@cs.auckland.ac.nz> User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [Starlink] Some comparison data from New Zealand X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Sep 2021 03:44:08 -0000 This paper went by again today, which compared real fiber latencies around the world against an ideal c-latency. https://arxiv.org/pdf/1505.03449.pdf On Fri, Aug 13, 2021 at 10:52:59PM +1200, Ulrich Speidel wrote: > Just to make sure we're fairly comparing technologies rather than the bad > shape regulation has left their delivery in North America in... Here are > some speedtest.net measurements from today (Friday New Zealand time), using > a selection of servers around the world (with an unashamed selection bias > towards the Pacific): > > 1) Between 5 and 6 pm from my docked laptop at work (UoA), on GbE with fibre > backhaul: > > Location Server Down Up RTT > Auckland WorldNet 831.45 914.17 1 > Auckland Vodafone 881.13 930.93 3 > Sydney Optus 904.4 335.73 29 > Sydney Vodafone Hutchinson 803.63 683.94 27 > Hong Kong HKIX 101.04 73.39 284 > Hong Kong i3D.net 86.42 39.58 174 > Tokyo OPEN Project (via 20G SINET) 26.31 30.51 256 > Tokyo i3D.net 326.54 15.69 140 > Los Angeles i3D.net 342.85 149.84 158 > Los Angeles 2degrees 388.95 187.5 125 > Rarotonga Vodafone Cook Islands 75.1 0.31 280 > Apia, Samoa > Digicel Samoa 736.72 289.8 76 > Bairiki, Kiribati > ATHKL 20.41 3.07 333 on satellite (SES/O3b MEO) > New York Atlantic Metro 481.01 120.29 197 > London UK Dedicated Servers 114.37 83.21 272 > Frankfurt Deutsche Telekom 194.7 77 299 > > 2) Between 8:30 and 9:30 pm from my residential home fibre connection (bog > standard suburban Auckland install). I did a traceroute on a couple of them > to show that the path isn't always obvious or anywhere near shortest. A lot > of traffic that should really stay on the western side of the Pacific makes > its way all the way to the US mainland: > > Location Server Down Up RTT > Auckland WorldNet 868.67 476.85 3 > Auckland Vodafone 894.84 458.47 2 own ISP > Sydney Optus 713.48 109.84 31 > Sydney Vodafone Hutchinson 528.21 166.57 33 > Hong Kong HKIX 119.29 26.84 266 traceroute goes via Hurricane Electric > in LAX > Hong Kong i3D.net 120.66 7.75 265 also via HE in LAX > Tokyo OPEN Project (via 20G SINET) 130.87 38.63 235 > Tokyo i3D.net 61.02 31.18 241 > Los Angeles i3D.net 295.05 65.19 128 > Los Angeles 2degrees 544.75 59.69 127 > Rarotonga Vodafone Cook Islands 43.99 1.09 248 These guys are on the > Manatua cable from Samoa to Tahiti. Going by the traceroute, the traffic > goes from NZ to Hurricane Electric in LAX (either via Hawaiki or Southern > Cross Cable)and from there down on the Hawaiki cable to American Samoa, from > there to Western Samoa and onto the Manatua cable from there. Must have a > chat to their CEO to find out what is going on there. > Apia, Samoa > Digicel Samoa 365.01 7.45 79 I'm not sure what is going on there with > their inbound connection. Tide out? > Bairiki, Kiribati > ATHKL 12.49 2.04 489 on satellite (SES/O3b MEO) > New York Atlantic Metro 412.56 0 230 no upload for some odd reason > London UK Dedicated Servers 45.39 31.9 262 > Frankfurt Deutsche Telekom 183.99 23.36 270 > > Rates in Mb/s, RTT in ms. > > So working from home's just marginally worse in terms of Internet here in > Auckland than being at uni. And they haven't even connected the Southern > Cross Next cable yet. I pay about US$73 / month, which includes a static > public IPv4 address and home phone. > > As for the islands, the only satellite-connected place with a speedtest > server I could find was Bairiki, which is part of Tarawa Atoll in Kiribati, > where one of the ISPs uses SES/O3b MEO (the rest use GEO). It still has a > whoppingly large RTT (probably around 130-140 ms pure MEO link, without > queue sojourn times). I've also observed dozens of milliseconds of delay > INSIDE Tarawa in the past, so quite whether there's a segment of old coconut > telegraph in there that hasn't been upgraded yet, I don't know. People on > GEO in this part of the world would be well advised not to host speedtest > servers - it would eat through their data caps in no time and make them > deeply unpopular with their fellow locals. > > > -- > **************************************************************** > Dr. Ulrich Speidel > > School of Computer Science > > Room 303S.594 (City Campus) > Ph: (+64-9)-373-7599 ext. 85282 > > The University of Auckland > ulrich@cs.auckland.ac.nz > http://www.cs.auckland.ac.nz/~ulrich/ > **************************************************************** > > > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink