The Implementation and Performance of User-level Communication Protocol for Shared Memory Clusters;

为了充分利用高性能网络，研究人员开发了多种用户级通信协议。

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Now let's see at a high level how a network packet is structured. Depending on the protocol being used for the communication, you could be dealing with one of the following IP packets.

现在我们从更高的层次看看网络包的结构是怎样的。

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USS protocol used for communication between PLC and inverter can compensate for the lack of hardware interface converter and could realize multi-level reversible speed.

利用USS协议实现PLC与变频器之间的通信可以弥补变频器硬件接口的不足，能够实现多级正反转调速。

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