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Hetzner subsea fibre cut outage

status.hetzner.com

51–60 of 94 posts

Re: Hetzner subsea fibre cut outage

#51

Can they somehow tell exactly where the cable was cut?

This video explains and show the same concept for copper cables in a very simple and hands on way: "Cheap and simple TDR using an oscilloscope and 74AC14 Schmitt Trigger Inverter" https://www.youtube.com/watch?v=9cP6w2odGUc

Some NICs and managed switches can do it as well. Well, I should say that most can do it (as in the hardware is capable) but only some actually expose the functionality.

Re: Hetzner subsea fibre cut outage

#52

Earlier quoted context omitted.

They are a co-investor... so its partially their cable.

And as I'm an EU citizen paying top taxes, plenty of which went into funding the project, it's partially my cable as well.

Lol,

To be specific - you invested in EU taxes, while others invested in cable.

Re: Hetzner subsea fibre cut outage

#53

Happens quite often to subsea cables. I was renting a number of them and every now and again you'd get a break. You can follow the NOC's update emails: Break detected Ship has been commissioned Ship is at harbor Ship has sailed out to the cut Fusing the ends Service restored

How the hell do you fuse the ends of a massive cable like this at the bottom of the sea?!

(Second YT search hit so there might be better ones ) https://www.youtube.com/watch?v=FtEw19JX-UE

Re: Hetzner subsea fibre cut outage

#54
post #36

Earlier quoted context omitted.

So do they own a solid chunk of it somewhere, or like a really long pie-slice sliver down the whole thing?

Neither, it's shared ownership. It's similar to if you buy a house with your partner: neither of you owns specific rooms, but you own the whole thing together. There's likely agreements about which fibers (there's 8 fiber pairs in the cable) and/or how much bandwidth everyone can use, though.

Why only 8? Why don't they put like 100 in there?

Re: Hetzner subsea fibre cut outage

#55
post #41
post #36

Earlier quoted context omitted.

So do they own a solid chunk of it somewhere, or like a really long pie-slice sliver down the whole thing?

It's probably split up by wavelengths.

So if they only have specific wavelengths, how do they keep them in the pie slice of cable they own? I just realized they likely don't own a cylindrical section of it somewhere because the light has to go in and out of it, only thing that makes sense is the long pie slice.

Re: Hetzner subsea fibre cut outage

#56

Happens quite often to subsea cables. I was renting a number of them and every now and again you'd get a break. You can follow the NOC's update emails: Break detected Ship has been commissioned Ship is at harbor Ship has sailed out to the cut Fusing the ends Service restored

What's the kind of scenario where you'd be renting an undersea cable?

Re: Hetzner subsea fibre cut outage

#58
post #4

Bitten by a shark, or snagged on a russian submarine? Whichever the case, I just ran an ansible deployment over our cluster that's spread over their Frankfurt and Helsinki datacenters, and I didn't notice any difference. I guess that's to be expected, their line between those datacenters is just an optimization, the internet is still functioning as it always is and maybe Hetzner gets a slightly larger egress bill fro…

The models of these cables that I've seen shows them in a jacket of steel so I doubt it's a shark. Or that was a joke that went over my head...

Re: Hetzner subsea fibre cut outage

#60

When I lived in Cayman, the main fiber link (Maya-1[0]) was down for about a week (anchor drag, I think). Most of the island Caribbean has limited backup connectivity. The whole island only has one fiber line (around the whole western/southern Gulf of Mexico) and a crappy backup copper line to Jamaica. For a while, it was like being on a modem again. Forget about streaming anything. This outage Hetzner is reporting i…

> For a while, it was like being on a modem again

Internet in Congo if you're not on the UN satellite

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