Global Connections

So this is probably a dumb question but I couldn't find any answers on Google. Perhaps I'm phrasing it incorrectly. As I was going through my study material for the ICND1, I couldn't help but wonder how networks are interconnected globally. I mean, I understand the concept of the ISP's having all their Fiber Optic lines underground, but once the signal runs out of land, then what? How is Kabel Deutschland and O2 connected to Comcast and Verizon and so forth? I mean you can't run Fiber Optic lines across the ocean right? Satellite would have too much latency wouldn't it? I'd love to have some light shed on my confusion.

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Comments

echo465

Fiber goes across the ocean. Submarine communications cable - Wikipedia, the free encyclopedia

djfunz

Awesome! Thanks for the link. Amazing that they can lay cable in water that's miles deep and can still withstand the pressure as well as providing terabits of bandwidth. All that while still providing redundancy. Really cool stuff.

Lizano

You can see most on them here. Submarine Cable Map

djfunz

Also a very cool link. Impressive how long some of those lines are.

N2IT

djfunz wrote: »

Also a very cool link. Impressive how long some of those lines are.

A close friend of mine used to work for AT&T and was a project manager for those ocean data cables. He mentioned that Ocean liners/tankers would drop there anchor and rip those cables from time to time. I wonder who much that cost to repair.