Isn't this incredibly dangerous to have publically available? Please take this down.
lol, should hacker news remove the link to that page? Yeah, that'll fix it.
It works for Europe's right to be forgotten, for silly definitions of "works".
Submarine Cable Map 2014
61–70 of 113 posts
Re: Submarine Cable Map 2014
#62I spent a few years supporting these from the financial end. Modern cables are built in a loop so that they automatically fail-over. For instance, most Trans-Atlantic cables have pops in New York, Florida, England, and mainland Europe. If there is a cut in one segment, traffic automatically switches to the other. Most customers these days are also on products that mux across these cables. So, if your Trans-Atlantic c…
Also have the privilege of still working on these types of networks; one of the things that fascinated me was the money and effort that telecoms companies are spending these days on tracking boats/ships/fishermen by their transponders.
There dedicated people, equipment and networks just to track these offenders, as the telecoms obviously want to work out who to send the bill onto once they've fixed the cable, or which insurance company ;)
Re: Submarine Cable Map 2014
#63Does anyone knows the total capacity of all these submarine cables?
At the end of the day these submarine cables are just optical cables, that is a really long strand of glass that you can send optical light (laser) down, and it'll pop out at the other end.
So the capacity is really based on the equipment at either end (and repeaters if required), the cables can degrade overtime due to hydrogen impregnation and damage from ships etc... your also limited by distance before you need to repeat, however basically there will be newer and faster hardware on the market every day meaning there is no way to work out the total capacity.
I've seen unrepeated short span submarine cables only lit/working at 10Gbps, the equipment at either end can support substantially faster (100Gbps+) with some small hardware changes, however simple business sense means your only going to provide capacity for what your customers are only demanding.
Prices are also more relational to the traffic going over them cables (and demand) rather than the distance, for example it can be cheaper to get from London to New York on one of these cables than it is to get around the UK.
Re: Submarine Cable Map 2014
#64I spent a few years supporting these from the financial end. Modern cables are built in a loop so that they automatically fail-over. For instance, most Trans-Atlantic cables have pops in New York, Florida, England, and mainland Europe. If there is a cut in one segment, traffic automatically switches to the other. Most customers these days are also on products that mux across these cables. So, if your Trans-Atlantic c…
Also have the privilege of still working on these types of networks; one of the things that fascinated me was the money and effort that telecoms companies are spending these days on tracking boats/ships/fishermen by their transponders. There dedicated people, equipment and networks just to track these offenders, as the telecoms obviously want to work out who to send the bill onto once they've fixed the cable, or whic…
Yeah, the other funny thing is that there are only a few boats in the world that can repair breaks. So if there are too many outages, you just have to wait for them to finish and then sail across the world.
Re: Submarine Cable Map 2014
#65Some days ago we were discussing about sharks eating these calbes and how Google stops them http://www.forbes.com/sites/amitchowdhry/2014/08/15/how-goog...
> James M. Barrett, a former deputy director of international engineering for AT&T , said that there were 55,000 or 60,000 miles of old undersea cable made out of copper that did not have a single case of shark biting, meaning sharks prefer to snack on fiber optic cables specifically. It is believed that the electrical current in the fiber-optic lines attract the sharks, triggering a feeding reflex.
"electrical current in the fiber-optic" but not copper?
Re: Submarine Cable Map 2014
#66Re: Submarine Cable Map 2014
#67Does each cable actually lie at the sea bed? What if the route comes across a really deep part of the ocean?
I'm curious as well. Can someone give a succinct answer?
Re: Submarine Cable Map 2014
#68Some days ago we were discussing about sharks eating these calbes and how Google stops them http://www.forbes.com/sites/amitchowdhry/2014/08/15/how-goog...
> James M. Barrett, a former deputy director of international engineering for AT&T , said that there were 55,000 or 60,000 miles of old undersea cable made out of copper that did not have a single case of shark biting, meaning sharks prefer to snack on fiber optic cables specifically. It is believed that the electrical current in the fiber-optic lines attract the sharks, triggering a feeding reflex. "electrical curre…
I think that electrical cables have pretty low current. The fiber optic ones need to power amplifiers, so they have quite a bit of power going through.
Re: Submarine Cable Map 2014
#69Some days ago we were discussing about sharks eating these calbes and how Google stops them http://www.forbes.com/sites/amitchowdhry/2014/08/15/how-goog...
> James M. Barrett, a former deputy director of international engineering for AT&T , said that there were 55,000 or 60,000 miles of old undersea cable made out of copper that did not have a single case of shark biting, meaning sharks prefer to snack on fiber optic cables specifically. It is believed that the electrical current in the fiber-optic lines attract the sharks, triggering a feeding reflex. "electrical curre…
Fiber optic wire has a very high voltage wire to power the amplifiers. (Interestingly, it's only one. The ocean water provides the return path.)
Re: Submarine Cable Map 2014
#70I imagine you can use wget or curl to download the images (or other batch download tools that let you put in ranges), then ImageMagick to stitch them together. Not too hard, but all command line tools that may take a bit of experimenting to get right.
This works for me
curl http://a.tiles.telegeography.com/maps/submarine-cable-map-2014/6/\[0-9\]/9.png -o row09_column0#1.png
curl http://a.tiles.telegeography.com/maps/submarine-cable-map-2014/6/\[10-63\]/9.png -o row09_column#1.png
curl http://a.tiles.telegeography.com/maps/submarine-cable-map-2014/6/\[0-9\]/\[10-54\].png -o row#2_column0#1.png
curl http://a.tiles.telegeography.com/maps/submarine-cable-map-2014/6/\[10-63\]/\[10-54\].png -o row#2_column#1.png
echo "Creating montage"
montage -mode concatenate -tile 64x *.png final_map.png