Quote:
Originally Posted by TJS
Does anyone know what sort of the speed the fiberoptic nodes connect to the street cabs at?
---------- Post added at 16:29 ---------- Previous post was at 16:29 ----------
Also is it the fiberoptic node thats limiting areas from being upgraded to the 100 mb package sooner; or do they need to upgrade the CMTS things?
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The speed of light! The downstream is pumped out for your modem at the configured rate and likewise from your modem for the upstream.
Have a read of
this.
The fibre capacity question is not intuitive. The article I've pointed to might help you understand. It's all about Msyms/second, QAM modulation (bit density) and how many channels are shared between how many users. A single channel at 256QAM (8 bits/symbol) at 6.952 MegaSysms/sec allows 55 Mbits per channel (you see that on the modem stats). There are 4 bonded channels on each of which you get your slice. If you were working at 50 meg, you'd get 13.9 meg/channel and if more than 4 users are fully stretching their link, anyone else coming onto that channel will face congestions (as then will the others). So it's the maths of DOCSIS that governs what happens, not the speed of light.
Does that help?