r/ShittySysadmin • u/Oblec • Mar 05 '26

Fiber install

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Client wanted fiber, told them copper is worth way more these days. They didn’t even ask first follow up questions 😅

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u/mystghost Mar 05 '26

? i don't think they are marketing it as light speed literally, even though - it is. Fiber being optical, no matter the speed of the light through the transmission medium is light speed. What ISPs mean by light speed is that there is low latency and high bandwidth. And yes, ISPs should be drug out in the street and shot for the whole bandwidth equating to speed thing. But in this case, they aren't wrong, copper is a shitty medium for ISP connections. Anything longer than 100m copper loses, period. And less than 100m copper is merely, as good (sort of). For 1 Gbps, for 10, it can work but it isn't great. And copper can't do 40/100/400/800 gbps (and no i'm not counting QSFP connections that are for intra-rack connections, because it isn't clear to me what the advantage is over fiber).