manner in which ssthresh should

beyond R$//3?$ Explain. Now consider Figure $3\mathrm{.}46($c$).$ If lambda$^(\text{'})$ in increases

beyond R$//2,$ can lambda$\_("$out $")$ increase beyond R$/4$ under the assumption that a

Explain.

P$40.$ Consider Figure $3\mathrm{.}61.$ Assuming TCP Reno is the protocol experiencing the

behavior shown above, answer the following questions. In all cases, you

should provide a short discussion justifying your answer.

a$.$ Identify the intervals of time when TCP slow start is operating.

b$.$ Identify the intervals of time when TCP congestion avoidance is

operating.

c$.$ After the $16$ th transmission round, is segment loss detected by a triple

duplicate ACK or by a timeout?

d$.$ After the $22$ nd transmission round, is segment loss detected by a triple

duplicate ACK or by a timeout?

e$.$ What is the initial value of ssthresh at the first transmission round?

f$.$ What is the value of ssthresh at the $22$nd transmission round?

g$.$ During what transmission round is the $70$th segment sent?

h$.$ Assuming a packet loss is detected after the $26$th round by the receipt of

a triple duplicate ACK, what will be the values of the congestion window

size and of ssthresh?

i$.$ Suppose TCP Tahoe is used $($instead of TCP Reno$),$ and assume that triple

Suppose timeout event occurs at $22$nd round. How many packets have been sent out from the $17$th round till the $22$nd$,$ inclusive