The PPP protocol information is encapsulated within an Ethernet frame.
PPP协议的信息封装在以太帧中。
The voice data is directly encapsulated into Ethernet MAC frame;
本解决方案的特点在于采用以太网MAC帧直接封装语音数据；
To handle this there is a 16-bit frame type field in the Ethernet header.
以太帧头中有个16比特的帧类型区域控制此项。
To handle this there is a 16-bit frame type field in the Ethernet header.
以太帧头中有个16比特的帧类型区域控制此项。
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