Question 211

Ramp Up

TCP transitions from slow start to congestion avoidance when cwnd reaches ssthresh. How does cwnd growth differ between these two phases?

A

Slow start doubles cwnd every RTT; congestion avoidance holds cwnd constant

B

Slow start grows cwnd by 1 MSS per ACK (exponential); congestion avoidance grows cwnd by 1 MSS per RTT (linear)

C

Slow start grows linearly; congestion avoidance grows exponentially

D

Both phases grow linearly, but congestion avoidance uses a smaller increment