In the previous chapters, we have discussed a variety of topics on wavelength-routed networks. A lightpath is physically set up through a suite of signaling mechanisms by way of dedicated control channels before optical data is launched, and is torn down after the connection ends. As network traffic gets more dynamic and bursty, wavelength-routed networks suffer a fatal drawback in achievable throughput. The major problem with wavelength-routed networks lies in the fact that the reserved channels are held regardless of whether or not effective data is transmitted. We need to have a new switching type to achieve an ultra-high throughput and real-time provisioning of data transmission.
KeywordsMigration Transportation Assure Expense
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