At present,multiple PON modes coexist in the network,while traditional OLT software has problems such as poor compati-bility,cumbersome development,and duplication when dealing with multiple PON modes.This article proposes a unified platform ar-chitecture that is compatible with multimode OLT,which can support multiple existing PON modes and has excellent backward compati-bility capabilities.The architecture achieves rate compatibility through different rate combinations corresponding to SerDes channels,and unifies the management and bandwidth allocation of ONUs,achieving multi-mode protocol stack compatibility and multi-chip adaptation in the software.This article uses different OLT business boards equipped with a unified platform to test registration and streaming business functions.The results indicate that the platform architecture is compatible with six PON modes,including 50G PON,and supports mode switching on different boards.At the same time,it can reduce the management difficulty of OLT products,shorten the project cycle,reduce the research and development cost,which is of great significance for the compatibility and smooth up-grading of new technologies of PON network(such as 50G PON)in the future.
维普
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