Packet processing access unit(PPAU)serves as the MAC aggregation function of the DQDB protocal. The main function of PPAU is to process the inconsecutive, asynchronous data on the DQDB network.是什么意思_Packet processing access unit(PPAU)serves as the MAC aggregation function of the DQDB protocal. The main function of PPAU is to process the inconsecutive, asynchronous data on the DQDB network.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句