Corey Edwards <[EMAIL PROTECTED]> writes:
>
> I would point out that standards are currently being drafted for 40
> gigabit and 100 gigabit ethernet over fiber. That's a lot higher than
> the currently offered 15-45mbps on Utopia and much more than the copper
> offerings of cable and telcos. There is plenty of room for improvement
> using fiber infrastructure. Think about how much we've (ab)used the
> copper that was laid so many decades ago. My copper wiring is 40 years
> old and it supports 1.5mbps DSL. I don't think it's too much to expect
> 20-30 years of useful life from fiber.
>
Some Bell Labs scientists apparently calculated that, theoretically,
you could send 100 terabits/s of data over fiber optics using
wavelength division multiplexing. Now, there are different kinds of
fiber-optic cable with different characteristics, and I'm not sure
what's being installed. That could make a difference as to what the
ultimate bandwidth limit is. But whatever it is, there's plenty of
headroom for growth.
--Levi
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