In the description of TCP congestion control, the value of the threshold, ssthresh, is set as ssthresh=cwnd/2 in several places and ssthresh value is referred to as being set to half the window size when a loss event occurred. Must the rate at which the sender is sending when the loss event occurred be approximately equal to cwnd segments per RTT?

Question

Computers and Technology

Dana Banks

19 December, 23:08

In the description of TCP congestion control, the value of the threshold, ssthresh, is set as ssthresh=cwnd/2 in several places and ssthresh value is referred to as being set to half the window size when a loss event occurred. Must the rate at which the sender is sending when the loss event occurred be approximately equal to cwnd segments per RTT?

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Josephine · Answer 1

Answer / Explanation:

To answer this question, we need to understand the meaning of some abbreviated term and what they mean. This includes:

TCP: Transmission Control Protocol

Congestion: This can be described as the restriction or blocking of a pathway of something.

Now if we relate it to the question asked, TCP control protocol congestion control is simple a type of algorithm procedure to avoid network congestion.

Now, If the pace at which a sender is sending is approximately equal to congestion window segments per RTT then the loss event is occurring.

Sound is a variable operated at the sender side so it can be used to execute a constraint on the traffic rate.

We should also know that ssthresh which can also be represented as slow start threshold is used to store second state value. When a segment loss event is occurring and the TCP, sender identifies the loss then the value of ssthresh is reset.

So, sender rate is cwnd/RTT.