当内核接收到数据包或读取套接字后，Windows TCP堆栈是否发送ACK? [英] Does windows TCP stack sends ACK when the packet is received by the kernel or after the socket read?

问题描述

我了解在大多数基于UNIX的系统中，内核一旦接收到数据包，便会发送ACK. 但是也想知道在Windows操作系统中行为是否也是相同的. (Windows 7).

I understand that in most UNIX based systems, as soon as the kernel receives the packet it sends the ACK. But would like to know if the behavior is same in windows operating system too. (Windows 7).

推荐答案

在所有操作系统中，行为都是相同的.它由RFC 793定义.ACK是在TCP接收到数据时(或在延迟ACK的情况下，之后)执行的.与应用程序读取内容无关.

The behaviour is the same in all operating systems. It is defined by RFC 793. ACK is performed when (or, in the case of a delayed ACK, after) the data is received by TCP. It has nothing to do with when the application reads.

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