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通过对信元的深入分析 ,提出基于ATM技术的UTOPIA接口的IP数据包的提取方法。用FPGA实现ATM层的数据分装与重组 ,可大大提高转换速度 ,然后通过对CPCS -PDU的分析采用软件提取IP数据包 ,最后给出了基于UTOPIA接口的信元提取的仿真结果。
Through the deep analysis of the cell, a method of extracting IP data packets based on the UTOPIA interface of ATM technology is proposed. The data layering and reassembly of ATM layer can be realized by using FPGA, which can greatly improve the conversion speed. Then the software extracts IP packets through the analysis of CPCS-PDU. Finally, the simulation results of cell extraction based on UTOPIA interface are given.