在光传送网交换中, 为了解决将切割的离散数据流重新组成连续的数据流传输的问题, 设计了一种包重组电路。采用自顶而下的设计方法实现数据重组过程, 根据重组数据包请求完成包数据重组, 解决了重组过程中剩余字节的问题。采用硬件描述语言实现该电路, 同时进行了功能仿真和逻辑综合。仿真结果表明, 该电路满足设计要求, 能够实现数据包重组。

In this paper, a packet reassembly circuit is designed to transmit the continuous data stream reorganized in a top-down design approach from the incised discrete data streams in the Optical Transport Network (OTN) switching. The packet data reassembly is completed at the packet request, resolving the problem of the remained bytes in the reassembly process. This circuit is realized using the hardware description language and its functions are simulated and its logics synthesized. Simulation results indicate that it satisfies the design requirements and can implement data packet reassembly.