在程序的算法中，也要确保优先级队列中不能有连接已在树中的顶点的边。

In a programming algorithm we must likewise make sure that we don't have any edges in the priority queue that lead to vertices that are already in the tree.

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其次，设计了可靠的消息队列，并采用平均加权算法对消息进行排队，支持优先级机制。

Then, a priority message queue is designed, and Weighted Fair queuing (WFQ) algorithm is used for messages queuing.

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针对硬件交换转发判决这一关键问题，给出了在输入队列交换机中采用虚拟输出队列的交换结构和多优先级调度算法的硬件实现方案。

We describe the implementation of a scheduling algorithm for configuring crossbar in input-queued switches that support virtual output queues and multiple priorities.

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