4口155M異步傳送模式(asynchronous transfer mode,ATM)業(yè)務(wù)采集卡實(shí)現(xiàn)對4個155 M ATM overSDH/SONET接口的數(shù)據(jù)采集,基于大容量FPGA(field programmable gate array)實(shí)現(xiàn)AAL2/AAL5的線速信元重組,重組后生成的AAL2SSSAR-SDU/AAL5 CPCS-SDU加上時(shí)間戳、ATM通道標(biāo)識后,封裝成以太網(wǎng)報(bào)文,通過采集輸出口輸出給信令協(xié)議分析服務(wù)器,可實(shí)現(xiàn)對Iu-CS、Iu-PS接口的信令監(jiān)測,同時(shí)支持cell mode的采集應(yīng)用.

基于FPGA的ATM采集卡的設(shè)計(jì)與實(shí)現(xiàn).pdf