Optimized Parallel Transmission in OTN/WDM Networks to Support High-Speed Ethernet With Multiple Lane Distribution

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Executive Summary

The emerging high-speed Ethernet is expected to take full advantage of the currently deployed optical infrastructure, i.e., Optical Transport Network over Wavelength Division Multiplexing (OTN/WDM) networks. Parallel transmission is a viable option towards this goal, as exemplified by several IEEE and ITU-T standards. The optical virtual concatenation protocol in the OTN layer defined in ITU-T G.709 enables high-speed Ethernet signals to be decoupled into low rate virtual containers. The multiple lane distribution layer defined in IEEE 802.3ba facilitates the optical parallel transmission by stripping Ethernet signals into multiple low rate lanes which can be mapped onto optical channels.

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