摘要： 针对主动网络执行主动代码，处理主动信包的特点，该文提出了一种多优先级最短信包优先调度机制。该机制的结构由包分类器、缓冲管理器、缓冲队列和队列调度器组成。包分类器根据预先约定的规则对接收到的信包进行分类；缓冲管理器按照优先级将信包分发到相应的队列，并根据该信包长度遵循从小到大的顺序插入到队列中相应的位置；缓冲队列缓冲存储信包；队列调度器在相对优先级和时延两个方面均进行控制。实验结果表明该调度机制符合主动网络的特点，能够对主动网络中的信包进行快速、有效地调度处理。

关键词: 调度机制, 主动网络, 队列

Abstract: Aiming at the characteristics that active network executes active codes and processes capsule, this paper proposes a multi-priority shortest packet first scheduling mechanism. This scheduling mechanism consists of capsule classifier, buffer manager, buffer queues and queue scheduler. Capsule classifier classifies arriving capsule according to promissory rules. Buffer manager sends capsule to corresponding queue according to its priority and insert it to appropriate place of queue keeping to sequence. Buffer queues store capsules. Queue scheduler controls capsules from relative-priority and latency. Experimental results show that this scheduling mechanism accords with characteristics of active network, it can fast and effectively schedule capsule in active network.

Key words: scheduling mechanism, active network, queue

中图分类号: 

• TP393