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To some people, it makes a difference if the fibre is all yours or if you're sharing it with someone else.
by Neil44 2y ago
To some people, it makes a difference if the fibre is all yours or if you're sharing it with someone else.
- ta1243 2y agoWhat specific sharing are you talking about, the wavelength, the individual strand, the entire cable, the trench?
- runjake 2y agoDark fiber is unlit fiber where you can do whatever you want with it (eg. shoot your own light down it). Leased fiber services are generally lit by the provider and may carry other customers' data on it, too. Albeit, this is still relatively secure, customers cannot see each other's data because the wavelengths are filtered. I'm not sure why this Wikipedia link was submitted without question/comment, so I flagged it and encourage others to do the same.
- ChrisGranger 2y ago>I'm not sure why this Wikipedia link was submitted without question/comment... This is one of my pet peeves. I wish OP (in general) would comment as to why they're posting, what they found interesting. I don't flag these posts, but they do sometimes feel like a lazy karma-grab.
- ta1243 2y agoI have some which are literally fibre I've personally run (or asked my riggers to run), but on someone else's land. For me those tend to be sub-km length and usually temporary unless in building or between neighbouring buildings. I have others which are fibre strands I pay another company to manage. They emerge as a single fibre at my location, and shine a powerful enough torch down and it comes out the other end. I'm sure that those strands go down cables with a few hundred strands on at some point though. These are mainly metropolitan range, but I've got a couple in the 100km+ range. My company has some which are wavelength services, these are multiplexed at local exchanges and I assume the wavelengths might be shifted. I don't deal with these. In theory I guess I can shine a torch at a given wavelength and it pops out the other end And then I've got ethernet circuits which are managed, I get an ethernet handoff at each end, but at its core it's just a packet service. All of these can be tapped by advesaries, it depends on your level of paranoia. Best to encrypt. The first 3 you can run say jumbo ethernet frames over. Or you can run non-ethernet traffic if you want.
- 0xcafefood 2y agoWho would that be? I could imagine HFT maybe.
- dboreham 2y agoOne difference is that you get to pick the optical equipment yourself instead of having to interoperate with whatever wdm scheme is deployed on the span.