如何确定tcp重传定时器的alpha值
我嗅探了文件上传以找出 TCP 段。我在以太输出中看到了重复确认和快速重传。我想验证重传该数据包的计时器确实是雅各布森公式所指示的计时器。我有所有段的时间戳。我应该研究我的Linux源代码的哪一部分来找出我的系统使用的重传定时器值计算算法。 如果它与雅各布森算法相同，我想知道重传计时器的 alpha 值。
i have sniffed a file upload to find out tcp segments. i see a dup ack and and fast retransmission in the ethereal output. i want to verify that the timer for retransmission of this packet is indeed the one that is indicated by jacobson's formula. i have the timestamps for all segments. what portion of my linux source should i study to find out the retransmission timer value calculation algorithm used by my system.
if it is the same as jacobson's algorithm i want to know the value of alpha for the retransmission timer.
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目前 Linux 内核中有很多拥塞实现，默认的拥塞实现在 2.6.x 分支中至少更改了两次。您应该首先找出您正在使用哪种算法，然后阅读有关它的一些文档。 （提示：）
您还可以查看 Linux 中的拥塞控制进展。第二篇文章也为您提供了有关所有可用拥塞算法的一些提示。
由于拥塞是网络上最大的问题之一，因此互联网上有大量研究、报告等。您也可以查看 Linux 内核开发列表/新闻组，因为也有很多关于它的讨论。
There is a lot of congestion implementations right now in the linux kernel, and the default one changes at least twice in 2.6.x branch. You should firstly find out which algorithm you are using and afterwards read some documentation on it. (hint: )
You can also take a look to the Congestion control advancements in linux. This second article gives you some hints about all available congestion algorithms too.
As congestion is one of the biggest problems on networks, there is a lot of studies, reports, etc available on the Internet. You can check out too the linux kernel development lists/news groups as there are a lot of discussion on it too.