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| Confusing
quote:
To show how fast the new core, deployed only in the last year, is filling up, Zelingher noted that a 40-Gbit/s DWDM system in one point of presence, capable of carrying 80 wavelengths at full capacity, is already 25 percent full.
Confusing. Do they mean a single bit of fibre is handling traffic running at 800Gbit/s, or that a single MUX is running at 800Gbit/s? (40Gbps x 20 wavelengths).
Actually I'd love to see a bit of DWDM kit that can tell you how much data is going through it. Considering that at transmission level each wavelength runs at a constant rate and any unused timeslots are padded out I sense BS.
The DWDM kit would have absolutely no way of knowing if the equipment connected to it were sending it actual data or just scrambled padding.
With the recent acquisitions being consolidated onto one network it's not that surprising that upgrades would be needed, however if AT+T are having to upgrade so much faster than other suppliers are requiring it points to other deficiencies within their network, not enough diversity, not enough fibre routes available and not enough segmentation.
We'll see though, they may just be posturing because they want to extract more cash from more people  |
