WebJun 14, 2024 · 也就是如果ssthresh 降低之后,需要传一个非常大的文件,并且网络状况超级好一直不丢包,这样能让CWND一直慢慢稳定增长,一直到CWND达到带宽的限制后出现丢包,这个时候CWND和ssthresh降到CWND的一半那么新的比较大的ssthresh值就能被缓存下来了。 tcp windows scale WebJun 13, 2015 · This is important to see when cwnd exceeds ssthresh, since cwnd's unit is MSS and ssthresh is expressed in bytes. So here we go: T = 1: cwnd = 1 MSS; ssthresh = 32 kB. Transmit 1 segment. T = 2. 1 segment acknowledged. cwnd += 1; ssthresh = 32 kB. New value of cwnd: 2. Transmit 2 segments. T = 3. 2 segments acknowledged. cwnd += …
【计算机网络】拥塞控制算法_外国大学计算机网络大作业 拥塞控 …
WebAug 11, 2016 · 1、TCP刚刚建立连接时,拥塞窗口cwnd和慢启动门限ssthresh的初始值是多少?. 2、当发生拥塞时,如何计算新的ssthresh值。. IW, the initial value of cwnd, … Web当cwndssthresh时:进行拥塞避免算法. 当cwnd==ssthresh时::两种皆可. 3.2 拥塞避免. 拥塞避免即让cwnd缓慢的增长,在一个RTT时间内,将cwnd的大小增加1,即增加cwnd的初始大小。这样,cwnd的大小就从以前的指数级增长变成现在的线性 ... department of the interior madeleine grayson
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WebDec 29, 2024 · 拥塞控制算法. cwnd 拥塞窗口大小. ssthresh 慢开始门限. 1、慢开始算法:首先将cwnd设置成1,之后按照2 逐渐设置给cwnd. 2、拥塞避免算法: … WebMay 17, 2024 · 当cwnd>ssthresh时,拥塞窗口按线性规律增长;. 当发生超时时,ssthresh的值更新为发送窗口数值的一半。. 第一轮次拥塞窗口的大小为1,第15轮次 … WebSep 15, 2024 · Meaning that cwnd could potentially reach a very high value since the initial value of ssthresh is extremely big. See the following citation to confirm my deduction : Implementation Note: An easy mistake to make is to simply use cwnd, rather than FlightSize, which in some implementations may incidentally increase well beyond rwnd. department of the interior news