The key technology of net-charging based on data-link Layer is the capture and analysis of data frame.

基于数据链路层的网络计费方式中关键的技术在于链路层数据包的捕获及分析。

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The key technology of net-charging based on data-link Layer is the capture and analysis of data frame.

基于数据链路层的网络计费方式中关键的技术在于链路层数据包的捕获及分析。

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