Re: [LINK] RFI: Boomerang Traffic
Mmmm, In theory the any given data path should correspond with the lowest hop-count, but this rarely applies in today's modern and private networks. I used to note that my traffic to the US and Europe got routed through West Australia and the Indo-Chinese/Japanese routers when I was with iiNet, Telstra favours the Pacific route and other providers presumably try to route their international traffic through whatever pipes they own/lease/control. In country, various peering and other alliances and arrangements can also result in seemingly illogical routes and higher hop counts ... with monotonous regularity. I've had e-mail (probably the easiest protocol to route check) from here in Victoria routed through Sydney, and mail-servers seem to change change network locations with monotonous regularity. It's strange that a mail item to a bloke down at Rosebud from here in Rye (6 or 7 miles away geographically) can be routed through Sydney ... but it has happened. Network and geographic locations only rarely correspond. And mail servers can be sited anywhere. I'm guessing that business exigencies and economies, ISP contracts and agreements with providers 'down the line', peering arrangements, and a whole heap of other commercial realities get in the way of how TCP/IP and its various application protocols are supposed to work which is probably not surprising. That said, I can't think of ANY commercial or physical reason to route local Australian traffic through any other country ... especially given the huge fees and charges the US end of the equation adds for traffic. MountainView and other mega-nodes in the US used to be (and probably still are) critical to getting Australian traffic to the world ... but there's no commercial or technical reason I can think of to route purely domestic Australian traffic through them. I could of course be badly mistaken, but I'm assuming that some of the variables mentioned above apply to Canada (and am sure that they apply in Europe). Especially given their close geographic and network locations to each other. Some of that ex-country traffic may be a simple exercise of the routers determining traffic through an another country's routers would be faster than an alternate domestic route, but a lot of it may be forced by the provider or telco. In these days of multinational corporates and transnational operations and agreements there are any number of reasons why internal network traffic could cross international borders ... ranging from network exigencies, business priorities, economics, corporate tax evasion ... Nope, No VAT is due on that purely international transaction, business relationships and arrangements with peers, spying (as Snowden and others have pointed out) or even be routed for more nefarious purposes. Just my 2 cents worth ... --- On 29 Apr 2014, at 8:49 am, Roger Clarke roger.cla...@xamax.com.au wrote: A colleague in Canada has conducted an interesting project on: Data Privacy Transparency of Canadian ISPs: http://ixmaps.ca/transparency.php Among other things, it co-opts the 'boomerang' concept: A boomerang route is a data packet path that starts and ends in Canada, but travels through the USA for part of the journey. Angela Merkel's Schengen Net notion addresses the same issue from a European perspective. He's asked me about the Australian situation. To what extent does traffic from an end-point in Australia to another end-point in Australia travel outside Australia? Is that only via the USA, or are there intermediaries in Asia as well? And to what extent does traffic from an end-point in Australia to another end-point in Australia travel entirely within Australia but pass through one or more devices controlled by companies that are subject to extra-territorial reach by another government? (Naturally there's the USA, with its PATRIOT Act, FISAA and now search-warrant-based demands on all US companies operating everywhere. But there's also Singtel Optus, and there's Huawei. And maybe other instances?). -- Roger Clarke http://www.rogerclarke.com/ Xamax Consultancy Pty Ltd 78 Sidaway St, Chapman ACT 2611 AUSTRALIA Tel: +61 2 6288 6916http://about.me/roger.clarke mailto:roger.cla...@xamax.com.auhttp://www.xamax.com.au/ Visiting Professor in the Faculty of LawUniversity of N.S.W. Visiting Professor in Computer ScienceAustralian National University ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
[LINK] Flash drives in the sea?
YESTERDAY, the aerial search for floating debris from Malaysia Airlines Flight 370 was called off, and an underwater search based on possible locator beacon signals was completed without success. Although efforts to find the missing aircraft have not been abandoned, Angus Houston, the man in charge of finding the plane, said, “We haven’t found anything anywhere.” The more than 50-day operation, which the Australian prime minister, Tony Abbott, calls “probably the most difficult search in human history,” highlights a big technology gap. We live in the age of “the Internet of Things,” where everything from cars to bathroom scales can be connected to the Internet, but somehow, airplane data systems are barely connected to anything. Investigators discovered Flight 370’s path into the Indian Ocean using an unorthodox analysis of data from the plane’s Aircraft Communications Addressing and Reporting System, or Acars, which was invented in the 1970s and is based on telex, an almost century-old ancestor of text messaging made essentially obsolete by fax machines. The Acars aircraft system was not designed for locating planes. The black box flight data recorders that are the focus of the search for Flight 370 are little more than super-tough memory sticks with locator beacons. When so much is connected to the Internet, why is the aerospace industry using technology that predates fax machines to look for flash drives in the sea? http://www.nytimes.com/2014/04/29/opinion/finding-a-flash-drive-in-the-sea.html? -- Cheers, Stephen ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
Re: [LINK] Flash drives in the sea?
At 08:42 PM 29/04/2014, Stephen Loosley wrote: When so much is connected to the Internet, why is the aerospace industry using technology that predates fax machines to look for flash drives in the sea? Good question. Answer: the same reason they didn't switch to long-life batteries after the French crash in the Atlantic - cost. Most airlines are broke and running on the smell of an oily rag. Add anything to the cost that isn't required by regulation and they freak out. Keep in mind they type of people who are CEOs of these things. Put the face of Alan Joyce on there and you'll understand. Plus airflight has been the safest in history in the last 4 years, so to even think about the need for anything that adds cost will get sneered at. My $.01 (won't compete with Frank) Jan Melbourne, Victoria, Australia jw...@janwhitaker.com Sooner or later, I hate to break it to you, you're gonna die, so how do you fill in the space between here and there? It's yours. Seize your space. ~Margaret Atwood, writer _ __ _ ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
Re: [LINK] Flash drives in the sea?
On 29 April 2014 20:42, Stephen Loosley step...@melbpc.org.au wrote: The more than 50-day operation, which the Australian prime minister, Tony Abbott, calls “probably the most difficult search in human history... Probably one of the more ridiculous bits of hyperbole to be emitted from the mouth of an Australian politician in recent days. John Franklin's search for the North West Passage when the entire ships crew perished after two years despite resorting to cannibalism doesn't rate? The search for the great south land? ... :) Jim ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
Re: [LINK] Flash drives in the sea?
On Wed, Apr 30, 2014 at 09:48:10AM +1000, Jim Birch wrote: John Franklin's search for the North West Passage when the entire ships crew perished after two years despite resorting to cannibalism doesn't rate? The search for the great south land? ... The search for evidence of the fate of the Franklin expedition, and the determination after 150 years that it was the lead that dissolved into the food from solder in the cans that did them in? Lasseter's reef? ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
Re: [LINK] Flash drives in the sea?
On 30 April 2014 12:47, Chris Maltby ch...@sw.oz.au wrote: Lasseter's reef? The Higgs boson? (Like 40 years and €7.5B) ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
Re: [LINK] Flash drives in the sea?
On 30/04/2014 1:31 PM, Jim Birch wrote: On 30 April 2014 12:47, Chris Maltby ch...@sw.oz.au wrote: Lasseter's reef? The Higgs boson? (Like 40 years and €7.5B) Noah's ark? Of course it might not exist, in which case the search will probably go on and on and on -- Regards brd Bernard Robertson-Dunn Sydney Australia email: b...@iimetro.com.au web: www.drbrd.com web: www.problemsfirst.com Blog: www.problemsfirst.com/blog ___ Link mailing list Link@mailman.anu.edu.au http://mailman.anu.edu.au/mailman/listinfo/link
