QuietlySeeking -> RE: "THE Internet could soon be made obsolete." (4/7/2008 1:34:18 PM)
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Bad news. The only thing many cable broadband users will get from "upgrading to a T-1" is faster upload speeds. T-1 is only about 1.54 Mbps, while cable can run upwards of 4.5Mpbs sustained with peaks in the 10-15 Mbps range. quote:
ORIGINAL: DomKen Although realistically the next major step for most home users is the step from traditional broadband (cable or DSL) to a T1 line. And there is really very little impetus for the move as most users will not notice much of an improvement going from DOCSIS or DSL speeds to a full T1. quote:
ORIGINAL: Gemini1761 quote:
ORIGINAL: QuietlySeeking Fiber bandwith is limited only by the speed of light. Actually, you're incorrect in that statement. Fiber only runs at the speed of light, because it is light being pulsed through the fibers, specific wavelenghts of laser light to be precise. What limits it are a few things, one being the wavelenght used, just like going from the original infrared based CD and DVD ROM devices to the new "Blue" wavelenghts which allow greater data to be carried. The imprecision of that statement notwithstanding, the premise of the entire entry is still valid. The "last mile" run is the most expensive. Once fiber is in place, it can be upgraded from technology to technology without replacing it. And finally, the majority of the "bandwidth problem" is when switching between backbones. It doesn't matter if the Internet runs on parallel OC-192s if I only have a 14kbps modem at my house; hence a change from one backbone to another introduces the limitation, not the fiber itself. To be precise: The equipment (switches, hubs, routers, modems, network cards, etc.) that interconnects each segment of the network is more likely the cause of any bandwidth limitations rather than the transmission medium itself (fiber).
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