400GbE Clients Drives Need for Multiples of 400G Speeds
The purpose of optical networks is to transport layer 1 client interfaces (also called service interfaces) across wide geographic areas, connecting routers, switches and other edge devices with each other. We are now at the beginning of a period where 400GbE is displacing 100GbE as the dominant client interface requiring transport. Therefore, it is important that optical networks support an orderly mapping of 400GbE clients onto transmission line rates.
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How to achieve this goal for high-performance.
How to achieve this goal for cost-optimized transport solutions using a channel plan based on multiples of 75GHz that ensures there is no wasted spectrum.
