The processing modules may send packets to one another via a common packet interface and may operate asynchronously.
处理模块可以通过公共分组接口向彼此发送分组，并且异步地进行操作。
We poll the network interface anytime we enter the network driver (typically for transmitting a packet) and from the process scheduler's idle loop.
一旦进入网络驱动(通常是传输一个数据包时)以及在进程调度器的空闲循环的时候，对网络接口进行轮询。
While configuration is a more general set of rules about how Snort should operate, rules tell Snort what to do every time a packet comes across a network interface that Snort monitors.
虽然配置是关于Snort如何操作的更加一般化的规则集，但在包每次跨过所监视的网络接口时，规则将告诉Snort执行什么操作。
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