Re: My opinion
>> If the 800mb transport can be applied economically to long-haul....this means a lot more capex for CenturyLink to upgrade the long-haul plant <<
Internet2® has selected CenturyLink’s new low-loss fiber network to transform its research and education network.
With the low-loss optical fiber and the upgraded optronics kit, Internet2 will have the ability to reach anywhere on its domestic footprint with an unregenerated wavelength of up to 200G. Many high-use spans on Internet2’s Network will also support 400G and 800G wavelengths with existing technologies and higher bitrates are expected in the coming years as new DSP technology comes into production. Internet2 has been able to achieve unregenerated spans without employing Raman amplification, a reduction in complexity and improved efficiency both at installation and for ongoing operations.
https://news.centurylink.com/2019-12-17-Internet2-Selects-CenturyLinks-Advanced-Optical-Fiber-and-Professional-Services-to-Maximize-Research-and-Education-Network-Performance