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The Dunant subsea cable

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51–60 of 262 posts

Re: The Dunant subsea cable

#51
“ enough to transmit the entire digitized Library of Congress three times every second” the engineer in me: compressed? With images? Or just raw texts?

Re: The Dunant subsea cable

#52
I know a lot is focusing on the Bandwidth. But are we making any progress on Long Distance Subsea Cable using Hollow Core Cable, achieving close to maximum speed of light for theoretical lowest latency possible? Imagine cutting latency from West Coast US to Hong Kong by 50ms!

Light is only traveling at around 2/3 of speed within Fibre.

The previous decades have been around Bandwidth. Is time we shift out focus to latency. 5G is already part of that , and 6G is further pushing it as standard feature. I wish other part of network start thinking about Latency too.

May be not network, but everything. From out input devices to Display. We need to enter the new age of Minimal Latency Computing.

Re: The Dunant subsea cable

#53

I know there are many of these cables that have been around for years, but I am curious how are they physically secured? Especially where they transit from ocean to land? Is there some long underground/sea tunnel of conduit that the cable is routed through to the basement of some building? Or if you are walking along the beach somewhere is there just some cable running out of the ocean along the beach to some buildin…

I'd imagine that the permissions/licensing/whatever only applies to the ends of the cables, when you're out of international waters.

Re: The Dunant subsea cable

#54

I know there are many of these cables that have been around for years, but I am curious how are they physically secured? Especially where they transit from ocean to land? Is there some long underground/sea tunnel of conduit that the cable is routed through to the basement of some building? Or if you are walking along the beach somewhere is there just some cable running out of the ocean along the beach to some buildin…

> how are they physically secured Multiple nations have specialised subs to tap into them. I doubt you'd find anyone willing to make such a guarantee. They are impossible to secure in any way and you need to rely on security assurances at different layers instead.

[deleted]

Re: The Dunant subsea cable

#56
post #52

I know a lot is focusing on the Bandwidth. But are we making any progress on Long Distance Subsea Cable using Hollow Core Cable, achieving close to maximum speed of light for theoretical lowest latency possible? Imagine cutting latency from West Coast US to Hong Kong by 50ms! Light is only traveling at around 2/3 of speed within Fibre. The previous decades have been around Bandwidth. Is time we shift out focus to lat…

My bet is on tech like Starlink with inter-satellite communication. Starlink should have lower latency with space lasers compared to fiber.

Re: The Dunant subsea cable

#57
post #52

I know a lot is focusing on the Bandwidth. But are we making any progress on Long Distance Subsea Cable using Hollow Core Cable, achieving close to maximum speed of light for theoretical lowest latency possible? Imagine cutting latency from West Coast US to Hong Kong by 50ms! Light is only traveling at around 2/3 of speed within Fibre. The previous decades have been around Bandwidth. Is time we shift out focus to lat…

My bet is on tech like Starlink with inter-satellite communication. Starlink should have lower latency with space lasers compared to fiber.

Won't they be at low enough altitude that they'll need more hops than fiber to get around the globe, where each hop adds at least some delay?

Re: The Dunant subsea cable

#58
post #52

I know a lot is focusing on the Bandwidth. But are we making any progress on Long Distance Subsea Cable using Hollow Core Cable, achieving close to maximum speed of light for theoretical lowest latency possible? Imagine cutting latency from West Coast US to Hong Kong by 50ms! Light is only traveling at around 2/3 of speed within Fibre. The previous decades have been around Bandwidth. Is time we shift out focus to lat…

You gotta bore for that sweet latency win. A chord tunnel between San Francisco and Hong Kong would save 1300 miles (20% improvement right there), and if you drill it straight enough, you won't even need a cable.

Re: The Dunant subsea cable

#59
The article mentions the number of fibres in this cable is 12, and that new technology was used to increase that number.

What is the limit on how many fibres can go in a cable? Should we expect future cables to have 50 fibres, or 100, or 1000, or more?

Re: The Dunant subsea cable

#60

Do those come with pre attached NSA listening devices [1] ? [1] https://siliconangle.com/2013/07/19/how-the-nsa-taps-underse...

There's a reason the vast majority of undersea cables have at least one end in a Five Eyes country. No need to tap it in the middle of the ocean then!

False. Snowden revelations clearly indicated that tapping undersea cables is (unsurprisingly) difficult to detect.

A lot of surveillance is done both *illegally* and secretly.

Forcing carriers to install black boxes next to their routers is not always the preferred choice.

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