
A Hole In the Net, Down Under 192
cjm_in_oz writes: "Since 4pm yesterday, Australia's leading ISP has lost 60% of its bandwidth due to either an earthquake, or as is more likely, a ship's anchor. Read more here ." Most of the entire continent's bandwidth, you see, courses through a particular manhole ... sheesh. This sure sounds like an argument for more and more fiber, along different courses.
Re:Here is the Link (Score:4)
"...circumstantial evidence suggests this species is a member of the DSL community..."
Mmmmm, high-bandwidth sharks...
Re:Timothy, puhlease... (Score:1)
Re:my insightful flamebait (Score:1)
( from http://www.aarnet.edu.a u/c orporate/history/sinclair.html [aarnet.edu.au] )
Geoff Huston, the first manager of AARNet...
After early ISPs like Connect, Western Australia's Dialix and the now-defunct RUNX in Sydney set up, and browsers and the Web kicked in to keep bandwith use growing. Telstra eventually bought out the backbone in 1995, leaving AARNet with its original universities and CSIRO.
Huston, who is now Telstra's manger of data networks...
See, they did have something nefarious happen there
Re:Big pipe? (Score:1)
Things haven't changed from the days of Telecom Australia, have they?
"Making it easy" for them to rip you off, is all they do -- and they drag their feet with all their anti-competitive acts (local loop access is the most recent example) -- and they get into bed with Rupert Murdoch (Foxtel) while still government-owned -- and I could go on...
Anyway, no real point, I just wanted to vent some at Telstra
Re:well, redundancy is *expensive* (Score:1)
Except when things like this happen, of course.
This is just a cover story... (Score:2)
Like, guess what happened! (no not really) (Score:2)
Re:The outage is 60% of Telstra, not Australia! (Score:1)
Re:my insightful flamebait (Score:1)
But a lot of ISPs probably buy bandwidth from Telstra or their resellers (if they can't get better deals elsewhere).
And don't Telstra administer AARNET? I seem to remember they took that over when connect.com.au went full-on commercial...
Re:well, redundancy is *expensive* (Score:1)
Obviously.
As Telstra is already Australia's primary telco, they already have substantial land rights and holdings. That is, they already operate most of the telephone poles and undergrond lines.
Re:you fools!!! (Score:1)
Re:I haven't noticed it at all (Score:1)
Things were a bit slow for me on the night it happened, but this was probably Telstra's router problems as well. (This is an SA ISP using Telstra's backbone). It's been fine since then... of course, I'm unsure of whether my ISP has back-up supply arrangements, they do seem to go for the multiple degrees of redundancy, belt&suspenders type approach, which is nice
The Infosphere Wants To Be In Orbit (Score:2)
Re:Not 60% of total bandwidth... (Score:1)
It cost big heap money to lay cables across big, deep oceans. Who's going to lay more than they can afford to?
Re:That's why you build STM rings (Score:2)
Hell, it's a freaking 13/14h flight from Sydney to LA or ~12 from Aukland to LA (which is odd as it's ~3h from Sydney to Aukland and they're on a similar latitude).
Bill - aka taniwha
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Re:Can someone please explain this to me... (Score:2)
Bill - aka taniwha
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the real effects... (Score:2)
Let's put it into perspective.
Telstra currently have 980Mbps of international connectivity. They have lost their largest link, 622Mbps worth, so they need to route around the problem.
It's not that simple.
The moment the link died, it wrecked havoc with BGP routes everywhere. I couldn't get outside my ISPs own network (optus) to Telstra for around one and a half hours. Yes, true, other ISPs here also have int'l bandwidth, but it hardly compares to the near gigabit that Telstra have.
Any southern-cross delivered bandwidth has yet to be utilized since customers (i.e. the ISPs) are either waiting for their connection or are still playing around with the configuration (read: playing Quake III with sub-150msec latency before the cable is loaded). Optus/CW, MCI and NZ Telecom are *shareholders* basically. They still have to purchase their own bandwidth (and line their pockets with money after a while). Telstra has got Southern Cross cable capacity too but just like the smaller ISPs who might only have a few megabits, they don't *own* the cable.
Thankfully, I'm on the optus@home cable modem service so I don't need to touch Telstra int'l bandwidth but connectivity to local sites is still erratic.
Now, stop slashdotting our link -
11 FastEthernet0-0-0.pad18.Sydney.telstra.net (139.130.249.239) * 376/383/401 (6.78) ms 9/10 pkts (10% loss)
12 * * * * * 0/5 pkts (100% loss)
13 * * * * * 0/5 pkts (100% loss)
-tsg
The outage is 60% of Telstra, not Australia! (Score:5)
And a couple of additional bits of information:
Nice work... (Score:1)
Backhoe fade at sea (Score:1)
The cause of the damage, which occurred approximately 100km from Singapore on the ocean floor, could not be confirmed. Possible causes include a ship's anchor or minor earthquake.
Now at last the truth can be told.
http://tbtf.com/pics/subhoe.jpg
_______________________________________________
Keith Dawson
Layer of ash separates morning and evening milk.
Re:Big pipe? (Score:1)
With the ownership like that, the bandwidth is also spread something like that, and the owners of each particular portion are able to sell it to whoever wants it. So my guess for the slowdown, is that the Aussie ISP is not the 40% owner and hence can't use the new Sothern Cross bandwidth.
Re:well, redundancy is *expensive* (Score:2)
Bill - aka taniwha
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Re:Porn Slick spotted off Singapore Coastline (Score:1)
Shipping is warned to avoid the slick as several ships have already gone down in the area....should read "Shipping is warned to avoid the slick as several ships have already been gone down on in the area, and are now sleeping somewhere offshore."
Going on means going far
Going far means returning
Re:my insightful flamebait (Score:1)
Do they carry more than 83% of the traffic? Well, did they, before their cable received an unauthorized vasectomy?
0.83 * 0.60 = 0.498
I'm picky.
My mom is not a Karma whore!
Not 60% of total bandwidth... (Score:2)
Re:Here is the Link (Score:1)
Here's another link, which provides a slightly less technical... erm... 'explanation'.
With cartoon.
http://obaba.shafted.com.au/ [shafted.com.au]
Re:The outage is 60% of Telstra, not Australia! (Score:1)
Re:11/19/00 19:14 Pacific Time (Score:1)
Hey, that's the requirement of one of our customers. So be it. Obviously, we don't recommend it but...it's their call.
Hence, "experienced developers"...some who've dealt with obscene constraints and succeeded.
Re:Timothy, puhlease... (Score:1)
assuming you live on the east coast. i'm in adelaide, i have a foxtel cable socket in my wall, but there ain't no way they'll sell me net access through it.
why? because optus stopped their cable rollout when they ran out of money. stupid, stupid telstra... if this were a true competitive regime, i'd be able to get access over 33.6Kbps (I have a 56k modem that doesn't work, phone line is too bad).
The cable map talks more than words. See yourself (Score:1)
Re:Now ain't that suspicious (Score:1)
The link that is damaged goes into the opposite direction (South East Asia, Middle East and then Europe). The new Southern Cross Cable that came in operation last week goes to the USA.
Re:well, redundancy is *expensive* (Score:1)
Re:Timothy, puhlease... (Score:1)
Re:well, redundancy is *expensive* (Score:2)
Disclaimer: sure, I lived in Australia for 7 years (in Queensland :/, bloody banana benders (my mom's a cockroach (dad and I are Canadian));), but that was 6 years ago (in NZ during that time) and now I'm in Canada, so my grasp of .au stats is way rusty.
Bill - aka taniwha
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Big pipe? (Score:1)
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Re:Am I missing the point re: Mission Criticality (Score:1)
Firstly, it's a whole hell of a lot easier (though still a bit of a pain) to lay terrestrial cable. Example: Qwest [qwest.com] just slapped a plow on a train car and furrowed trenches along rail lines all around the US. Stuff in cable, backfill, and you're done (more or less). You can't really do that with submarine cable. You can also do end-run tricks with microwave and laser [astroterra.com] for cheap further expansion.
Though the link was already posted, I'll post it again. It's a splendid article [wired.com] Neal Stephenson wrote for Wired, and if you want to hear more than you wanted about laying cable, read it.
So what you've got is relatively cheap terrestrial links, but when you start talking trans-oceanic, then things get hairy, both in effort and money terms. So you only have a few outbound connections from the continent, which means one anchor/earthquake/curious competitor (read the article) and there goes your connectivity.
Note that Arpanet was meant to protect the US military network in times of chaos (i.e. armageddon). It really isn't an issue that overseas connectivity is a somewhat fragile link, since in times of war, it's only the national network that matters.
As for routing issues, well, there are all sorts of wack payment issues at the backbone level. At the top level, the paths that packets take are determined by business agreements rather than efficiency. So you'd have to get on the horn to your competition and beg and plead for assistance (banks do it; they loan each other money all the time and at pretty decent rates, although telcos might enjoy raping each other when asked for help). Also you may get into weird latency issues if you route US traffic over a cable destined for, say India and then somehow on to the US (maybe).
Caveat: This could all be bullshit. Comments?
Would Peering Help? (Score:2)
I mean, I've experienced the MAE West packet loss and such, but at least my packets could move on to other ISPs.
Of course, the article was a little sketchey on details. Does anyone know?
That's why you build STM rings (Score:2)
Then again, building redundant transcontinental lines are not a trivial thing....
Oh Dear! (Score:2)
That's like there being a car wreck someplace in the U.S. and UUNet going down because of it. This reminds me though, of that article I read once, where the sharkes were eating the fiber optic cable, cause they liked the taste of the gel inside it.
(sorry don't know where a link to the story is)
Re:redundancy/shmundancy (Score:1)
Other ISPs and networks such as Optus were uncongested.
I use Optus, Australia's 2nd biggest telecommunications company. I have no problems. I also don't like Telstra all that much, so I'd be happy if this loses them some customers.
Re:my insightful flamebait (Score:2)
Fuck Telstra and avoid them like the plague. Your local calls are cheaper elsewhere, your STD calls are cheaper elsewhere, your mobile calls are cheaper elsewhere, your International calls are cheaper elsewhere, and your Internet access is not only cheaper elsewherethen their overpriced Big Pond, but is now faster, more stable and more reliable though a company like Optus with the new link.
Xenex
- Who has been totally Telstra free for over 15 months, and had loved it.
redundancy/shmundancy (Score:1)
just asking for it. (Score:1)
Who is smarter: us or them?
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Spelling by m-w.com [m-w.com].
Re:well, redundancy is *expensive* (Score:1)
Wonder how that happened (Score:1)
That would really suck (Score:1)
They have limited bandwidth.. and what happens.. (Score:5)
Bigpond Cable (Score:1)
Re:Eurasian Phat Pipe? (Score:1)
This is great! (Score:3)
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Re:Timothy, puhlease... (Score:1)
Re:Security? (Score:1)
Telstra... Hah! (Score:1)
Re:The Infosphere Wants To Be In Orbit (Score:1)
But what if I'm in Auckland and you're in Wellington (both NZ)? Well, we're only 485km away, yet we'll have more than double the latency that a terrestrial system would have. A wireless solution is not sufficient (I think) for spanning gaps of hundreds of kilometers, so you will need to lay fiber somewhere. Also, wireless border hopping (in Europe, for example) would be a pain in the arse, since you'd have to obtain rights to the same frequency on both sides of the border, a bothersome proposition. And even if you go to laser, you still have latency in the transmission hardware being tacked on
So you've got latency issues going to satellite. This isn't a new issue, and I might write it off if I gained the ability to read Slashdot on my yacht in the Mediterranean (what do you think I do during the summer?).
However, there's one more issue: upgrades. You may have heard the term "dark fiber [whatis.com]" (or fibre, depending). Simply, when Joe's Telco decides to lay fiber, they lay a lot more than they need, since they can't just go back and lay more easily. There's this unused ("dark") fiber laying around that can have equipment hooked on to it to expand the network. And the network hardware can be upgraded at any time (optical switches [zdnet.com], anyone?). You can upgrade a satellite (such as Hubble), but it's not cheap. And in all probability, the network will not improve all that much over time (maybe better compression routines).
So don't write off fiber/fibre entirely. Of course, a satellite AND fibre network would be ideal.
Re:Timothy, puhlease... (Score:2)
You mean, like the USofA?
Melt the ice caps (Score:1)
That would be cool.
Re:Timothy, puhlease... (Score:1)
You mean, like the USofA?
Probably not the whole of it.... I'm sure there's a few pacifists in southern California and Alaska.
Now, if there wasn't some truth to the stereotype he's referring to, then why are you taking offense? Do you cling to the belief that you have a right to carry a gun in case the King of England walks in through your door? Do you think of proponents of gun control as left-wing extremists? Do you long for the day when it'll be legal for you to buy an IMI Uzi at the local gas station?
Probably not. So why let it bother you?
Am I missing the point re: Mission Criticality (Score:1)
Re:well, redundancy is *expensive* (Score:1)
Wrong! You see, those are not simple cables, not even just a bunch of expensive monomode fibers. Even the best fiber doesn't transmit a signal over several thousand kilometers. You need signal enhancers at regular intervals (like, every 50km or so), and those cost something on the order of a million bucks. So please don't call other people idiots when you have little clue yourself...
Re:Big pipe? (Score:1)
Re:Big pipe? (Score:1)
One interesting point is that the problems caused by the cut cable were nothing compared to the problems Telstra had on the night due to other factors. As this outage notice [telstra.net] states, they had routing loops form within their network when the cable went down.
Also, an electricity substation supplying power to the main Telstra internet POP in Sydney exploded [abc.net.au] around the same time, cutting power to all of their routers. Power wasn't restored until the following morning.
More here [smh.com.au], here [zdnet.com.au] and here [internettr...report.com] (check the graphs).
Re:According to Timothy: (Score:2)
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Obfuscated e-mail addresses won't stop sadistic 12-year-old ACs.
poor guys (Score:4)
I can just imagine what a pain in the ass this will be to fix!
For those who are unfamiliar with SONET fiber technology:
You have to understand that for most companies, (until just recently), SONET is set up in a dual ring configuration. This is somewhat analogous to FDDI in a Lan. There are generally 4 fibers between offices, 2 per cable, (transmit and recieve). If you get backhoe fade on one cable, the signal gets transferred to the other cable's transmit and recieve. To set up a star type topography has traditionally been cost prohibitive, and is not done too often.
Although the internet is highly redundant on the IP level, most of continental and international traffic is jammed onto a few huge capacity strands of fiber to save money.
One cable cut in a long haul situation can quite possibly be disastorous in many areas of the world. I imagine Australia, being an island in the middle of nowhere, (internet wise), can't have too many redundant links.
Just a thought
Re:Timothy, puhlease... (Score:2)
Internet service was cut off for several days after a homeless guy was sleeping under a bridge...I beleive his blankets were covering some exposed electrical power equipment and a fire started. All the fiber lines nearby were melted (this is from memory, the story is probably off a bit). ALL the lines into MN at that time were through this area (maybe they still are?) so there was no net for a few days. If someone from MN remembers the exact story, post a reply
I think the point is that a fair amount of the net is fragile in this manner. Remember, you only have to cut the line once over any distance to prevent it from working. Obvious yeah, but people seem to forget.
Godzilla (Score:2)
__
Live traffic report... (Score:2)
Re:well, redundancy is *expensive* (Score:2)
Ocean conditions and prevailing currents prevent undersea cable from being layed in most areas of the ocean.
You see, while daily tides don't seem too powerful to the average person, the stress imposed on a cable that is exposed to miles upon miles of oceanic currents will break even the strongest of cables. A similar situation was previously discussed here [slashdot.org]
With respect to these conditions, Floreat Beach in Perth is the ideal area to lay cable. This coastline is sheltered from the impact of high energy swell by a series of submerged calcaranite barriers and offshore islands. As a result, low energy conditions prevail, especially in summer when incident wave heights are generally less than 0.5 m, giving the beaches a lake-like appearance.
In addition, Perth is home to many major Australian dotcoms and ISP's. It is considered by many to be Australia's version of Silicon Valley in the US.
"Redundancy" is commonly a myth... (Score:3)
Redundancy in the telecom world takes on two basic forms - equipment redundancy and circuit redundancy.
Equipment redundancy is pretty much what it says - redundant equipment in place with the same end service in mind. Should a processor in a fiber multiplexer die, fry, go up in smoke, whatever, the equipment fails over to the backup processor with little or no interruption of service. This is more or less a minimum standard in the telecom world.
Then there is circuit redundancy, which takes two more basic forms, either over a single cable (with multiple fiber strands), or over multiple cables. Unfortunately, more often than not in more "rural" areas, this is usually multiple fiber redundancy within a single cable. Which covers almost all equipment failures involving the physical cable interface, but does nothing at all for when Joe-Backhoe-Operator digs without a locate and tears up 15 feet of cable without even noticing it. Which is the most common failure I've experienced.
Even multiple cables isn't always the answer, especially if the physical routes aren't diverse enough. I can think of two instances, both in the upper midwest, where multiple cables in proximity (read - one or more conduits in a very small space) were damaged or destroyed, once by fire, and another by a vandal who knew where to find them.
The ideal situation is for telephone companies to have two routes out to the "network" running in almost opposite directions. However, again, although this works well for switched voice calls, most of the time it doesn't work for "nailed up" point to point circuits, which still leaves those types of circuits, commonly used by ISP's where frame relay isn't available, in the cold when routes are destroyed. And, we all know how fragile frame relay can be, especially when Worldcom is at the helm - "Oh, let's just globally upgrade the software in our network without any phasing or large scale testing at all. Oh, yeah, and when it falls on it's nose, let's let it fester for a week or so before we get the network to re-converge."
So, there you have it in a nutshell. Nothing is foolproof, especially if you don't own or control all of the network from point to point. But, I think most everyone would agree, there are very few times I've ever picked up the phone and not had dialtone. I think most people in the states would agree with that. Remember, the telephone network is the most complicated, expensive, diverse, available electronic network in the world. And although the phone companies are far from perfect, especially the former US West and Worldcom, when you think about it, it's really amazing how stable it is, and that it works as well as it does!
Brad
11/19/00 19:14 Pacific Time (Score:2)
Why do I say that? Because I run a web service that criss-crosses between California and Australia (and Tasmania, for what it's worth). We have an n-Tier web application that is hosted, in tiers, both in AU and in CA. The customer's sites are hosted in AU but link to web app pages in CA. Then the web server connects via secured named pipe to a legacy application server back in AU. (Yes, the transaction pings and pongs from the US to AU multiple times before completion). This is usually extremely transparent to the user (you can bet were not running Flash animation over these links!). But beginning Sunday at 19:14 PM my time, the usual became excruciatingly unusual. That's when I began logging timeout errors.
I don't know whether to be shocked at what effect one cut cable has caused, or to marvel that even with a severe blow to a continental backbone the Internet is routing around the damage, as designed.
One thing for sure -- I'm glad I'm not running a leased-line application that requires me or my company to troubleshoot the network! How nice to completely off-load responibility for intercontinental networking to completely unrelated third parties. There's antother point to be made about the distribution of labor in this story...and the economies of scale... but I digress...
Re:User's experience (Score:2)
Re:Security? (Score:2)
Re:well, redundancy is *expensive* (Score:2)
Actually, about four years ago, I worked for SWBell. One of our projects was to lay several T3 lines bewteen California and Hawaii.
"The transatlantic route is the most populated with cables and has also seen the greatest drop in the price of capacity. Last year, $250,000 would buy a T-1line between London and the USA. Five years ago, that is what it cost to lease a line for a year. Prices have not fallen as far in the Pacific, but will continue to drop worldwide"
Found here [russophile.com]
Re:Eurasian Phat Pipe? (Score:2)
Qwest cuts AT&T too... (Score:3)
How about c|net's story off of the ap: Qwest ordered to pay AT&T $350M [cnet.com] for repeatedly cutting a fiber-optic phone line.
well, redundancy is *expensive* (Score:2)
building one link is expensive enough, but 2 when not needed is just not likely to happen, unless they need the bandwidth to sell it. because .au is probably a hard market to get into (upfront costs ++), its rather monopolistic.
therefore, as the only company around, they don't really need to be uber reliable, only decent. from their point of view, redundancy is probably only a cost which they can slash... capitalism strikes again
Re:That's why you build STM rings (Score:2)
And now... (Score:3)
my insightful flamebait (Score:4)
The damaged cable does not usually handle "Most of the entire continent's bandwidth...." It handle 60% of a particular company's bandwidth, which is very different.
And this event does illustrate the need for more connections. The story also explains that there are more connections, including a new cable with 5x the bandwidth of the one damaged. Unfortunately, that new cable is owned by a different company which is not experience technical difficulties.
My mom is not a Karma whore!
Backhoes... (Score:2)
My GF's brother-in-law owns and operates a backhoe, and I rode "shotgun" with him on it many times (one of these days I hope he can show me how to operate the thing). I can tell you that when digging, even knowing there is a pipe, cable, conduit, something - it it hard to tell the difference between it and everything else that is "down there". Unless you are operating in "virgin" soil, many times there will be plant roots, old runs, rebar, branches - you name it, and many times it looks just like what you are trying to avoid. A good operator will either have a spotter, or be looking carefully, and stop immediately after seeing something that even looks like a cable or pipe, get off the rig, and inspect the area. More often than not, it is nothing - but every once in a while it is something, then you have to back off, and hand dig around it.
The biggest problem is when you are digging, and you don't spot the hazard - a boom on a backhoe can be moved quickly, or delicately - but even at it's most delicate, there is still a bit of inertia (hey, it's a big mass of steel, for cryin' out loud!) - which can still cause a break, if you don't catch it in time.
I know there are dangerous operators out there - but the majority are good workers, doing a job you or I might not ever think about doing...
I support the EFF [eff.org] - do you?
Re:Big pipe? (Score:3)
This made the newspapers (at least in a minor way) here, and believe me, there's a lot of unhappy people. I'd imagine that Telstra might well be leasing some space on that big, redundant connection in the not-too-distant future :)
Re:Big pipe? (Score:2)
i'm sorry (Score:4)
One seaworthy vessel; ten million dollars
A solid steel anchor; two thousand dollars
Whoring for karma with bad Mastercard ripoffs; priceless
There are some things having a life can't get you. 87 Karma is one of them.
User's experience (Score:4)
In Oz, as a Telstra customer last night, data rates to the US were down to a few hundred bytes per second (assuming you could successfully connect at all), and ping times were up to ~5000 msec. Thankfully, I didn't have any big up/downloads that needed doing. Things have improved today - ping times are back to normal and bandwidth is up to ~5-6 kilobytes per second (I'm on a cable modem).
How is it for others in the region? All we've heard so far is Australian reports, but this outage will unfortunately be affecting people throughout Asia :(
Re:well, redundancy is *expensive* (Score:2)
Re:The outage is 60% of Telstra, not Australia! (Score:2)
Of course, that was back when people just used text email and used local usenet news servers.
Timothy, puhlease... (Score:5)
Re:well, redundancy is *expensive* (Score:2)
If a professor said that to me, I'd have his ass in the Dean's office pronto. Like, chill out.
>The cable itself is far cheaper than the act of laying thousands of miles of it
I'd tend to agree, but what is the point of laying two cables side by side when anything strong enough to cut through one cable is likely going to cut through the the cable beside it?
There's a way to implement redundancy, and that means some separate paths. Two cables going through the same spot only helps if you are VERY lucky. Two cables 100's of miles apart is much different. And if you start to lay cables miles apart from each other, you start to double the cost of the work (if you ask me...).
you fools!!! (Score:3)
Re:Timothy, puhlease... (Score:2)
As an American who lived in your beautiful country for ten years (and who now has dual citizenship), let me extend apologies for the less than gracious comments of some /.'ers. I would like to believe most would rephrase their comments with some reflection.
(And to preempt any fatuous comments suggesting I return there, believe me, given half a chance, I would. Without hesitation. Not that the there's anything wrong living in the US, it's just that Australia is a great place to live. Perhaps even the greatest place to live. Oooops! I didn't mean to go all maudlin...)
So that's what it was... (Score:5)
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Re:The Infosphere Wants To Be In Orbit (Score:2)
As for the other issue, dark fiber is a lot more limited resource (and vulnerable to sabatage) than is line-of-sight wireless. Further, the cost of replacing an Intersat will start to approach the cost of replacing an optical switch as launch sevices exit their domination by governments and enter the industrial world. As I point out in "The First Inforb [geocities.com]" at some point the launch costs are low enough that office-environment information systems can be put into orbit by containing them within (unmanned) environmental controls. Industrially reasonable launch prices are below the $100/lb figure that is typical of current office environment information systems.
Now ain't that suspicious (Score:5)
Sounds like what they were talking about in Cryptonomicon, cable cutting wars. Easy to start, but nobody dares start them.
How is this possible? (Score:2)
People cut stuff, they drive dump trucks through aerial fiber (hitting power lines as well), and other really stupid stuff. If you have an entire continent running on one link, then that link better be redundant and fully looped. These people have one to blame but themselves (people being the inet company).
Eurasian Phat Pipe? (Score:2)
Routing through the mideast is a little dicey given the political instability. The infrastructure costs make a fat pipe via siberia a real pain. The point is simply redundancy, as well as opening up the net to other areas of the world. a fat pipe going through that part of the world would help this out tremendously.
Now it seems that this point has been brought home in spades. (shudder)
Re:That's why you build STM rings (Score:2)
SDH is the European equivalent of SONET. STM-x is the European equivalent of OC-x, which is just a measure of bandwidth.
Re:well, redundancy is *expensive* (Score:2)
Only if the aim is to lay several cables together, which also makes sense on land. However if the idea is to have redundancy against damage to the cable run you'd need different routes. Which involves more of the expensive bits...
Re:Eurasian Phat Pipe? (Score:2)
Re:well, redundancy is *expensive* (Score:2)
If you run into problems laying the cable then sorting them is rather more difficult, getting at a cable under a few km of water is not an easy task. Also you have problems of drunk sailors and dredger operators where the cable is in shallow water.
Some interesting facts (Score:2)
Well this has sort of flattened out now, and Australia is doing a lot better, but it's still interesting to note whats probably happened here.
1. Earthquake/plate shift (and it seems like an earthquake/plate shift) has disrupted the cable between Jakarta and Singapore. Because of the way the cable is arranged, this will mean Jakarta and Australia are effectively getting zero bandwidth from Singapore. Earthquake/plate shift is highly suspected due to the recent (not long after the cable break) earthquake in Papua New Guinea. Telstra didn't allow for any real redundancy (by running dual cables seperated by a few hundred feet or more) in their cable run. One cable handles all the traffic, so a single break causes complete data loss. (Southern Cross uses a two cable system to allow redundancy in the case of a cable break).
2. The night of the cable break, a power station in Paddington, a suburb just east of Sydney (NSW) burnt down, dropping 20,000+ homes and businesses into a blackout. Paddington is where Telstra routes most of it's eastern states traffic, and indeed all traffic destined to go through the previously existing pipes from Sydney goes through Paddington. A simple hiccup or loss of power caused by failing generators could have caused havoc. Such a scenario seems very likely given the problems that appeared on Telstra's network that night. Any sub-system that kicked in may have not been able to handle multiple failures dealing with traffic problems (eg: fibre to Singapore being down, which goes via Perth, Western Australia), causing more headaches.
3. Due to floods, much (approximately one-third) of the NSW outback is under water, making any problems with cables running across this area difficult. Cables that might be under 6 feet of dirt are under an additional 12 feet of water making any repair hard. Microwave links running across this area could also suffer, due to power outages, or possibly tower foundations shifting and throwing communications out of whack.
Anyway, things seem a lot better for Aussie internal traffic, and external traffic isn't TOO bad (apparently). Fortunately I'm with Optus Cable (who have their own link to the US) at home, and UEComm (One of the many companies who use Southern Cross) at work. *grin*
Wrong map colors, guys (Score:2)
Didn't anyone teach these guys in elementary school that water is blue and land is !blue? I spent ten minutes studing this map trying to parse out recognizable shapes before I realized that blue was land. I thought it was an extreme close up of Indonesia, and I kept wondering, "Why is Perth on the East coast of this landmass??"
Silly me.
-Chris
...More Powerful than Otto Preminger...