该协议根据各节点内实时队列长度动态的控制轮询过程，每个轮询周期对具有最长队列的节点进行服务。

This protocol adaptively controls the polling process according to the real-time queue length of each stations and serves the one with the longest queue firstly in each polling cycle.

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事务流量——也称为类型A，提供实时的队列和响应集成。

Transactional traffic — Also known as Type a, provides real-time query and response integration.

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为了提高可伸缩性，已经提出了许多新的 API，比如 /dev/poll、实时信号、I/O 完成端口、/dev/epoll 和内核队列。

There have been many new APIs proposed to improve the scalability, such as /dev/poll, real-time signals, I/O completion ports, /dev/epoll, and kernel queues.

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