I’m making an attempt to know calculations revolving round SMSS, cwnd, and IW.
I needed to consider the outcomes of slow-start on a line with a spherical journey time of 10msec and no congestion and conclude how lengthy it takes earlier than the primary full window could be despatched? I had the next information:
Preliminary Window = 4380 bytes Obtain window = 24 KB Most phase measurement (SMSS) = 2 KB = 2048 bytes
The ends in the reply urged the next:
Step 1: cwnd = 4380 bytes (2 segments despatched/ack)
Step 2: cwnd = 8476 bytes (Four segments despatched/ack)
Step 3: cwnd = 16668 bytes (eight segments despatched/ack)
Step 4: cwnd = 33052 bytes (12 segments despatched/ack)
In conclusion, it takes Three round-trip occasions (i.e 30 ms) till the total obtain window of 24 Okay can be utilized.
Now I do know that in sluggish begin, the congestion window is incrmented by SMSS bytes for every ack however I do not fairly perceive how the outcomes are derived. What system is used to double the bytes each time and the way can we conclude the variety of segments?