SLOW START, CONGESTION AVOIDANCE, ANO FAST: RETRANSMI T

Consider the figure below, which plots the evolution of TCP$"$s congestion window at the beginning of each time unit $($where the unit of time is equal to the RTT$)$; TCP sends a "tlight" of packets of size cwnd at the beginning of each time unit. The result of sending that flight of packets is that either

$($i$)$ all packets are ACKed at the end of the time unit,

$($ii$)$ there is a timeout for the first packet, or

$($iii$)$ there is a triple duplicate ACK for the first packet.

In this problem, you are asked to reconstruct the sequence of events $($ACKs$,$ losses$)$ that resulted in the evolution of TCP$\text{'}$s cwnd shown below.

Consider the evolution of TCP$\text{'}$s congestion window in the examplababo and answer the following questions. The initial value of cwnd is $1$ and the initial value of ssthresh $($shown as a red $+)$ is $8.$ Format your answer like: $1,3,5,9$

Give the times at which TCP is in slow start.

Give the times at which TCP is in congestion avoidance.

Give the times at which TCP is in tast recovery.

Give the times at which packets are lost via timeout.

Give the times at which packets are lost via triple ACK.

Give the times at which the value of ssthresh changes.

SLOW START, CONGESTION AVOIDANCE, ANO FAST: RETRANSMI T

Consider the figure below, which plots the evolution of TCP$"$s congestion window at the beginning of each time unit $($where the unit of time is equal to the RTT$)$; TCP sends a "tlight" of packets of size cwnd at the beginning of each time unit. The result of sending that flight of packets is that either

$($i$)$ all packets are ACKed at the end of the time unit,

$($ii$)$ there is a timeout for the first packet, or

$($iii$)$ there is a triple duplicate ACK for the first packet.

In this problem, you are asked to reconstruct the sequence of events $($ACKs$,$ losses$)$ that resulted in the evolution of TCP$\text{'}$s cwnd shown below.

Consider the evolution of TCP$\text{'}$s congestion window in the examplababo and answer the following questions. The initial value of cwnd is $1$ and the initial value of ssthresh $($shown as a red $+)$ is $8.$ Format your answer like: $1,3,5,9$

Give the times at which TCP is in slow start.

Give the times at which TCP is in congestion avoidance.

Give the times at which TCP is in tast recovery.

Give the times at which packets are lost via timeout.

Give the times at which packets are lost via triple ACK.

Give the times at which the value of ssthresh changes.