Question

Explain the role of slow start and congestion avoidance in TCP.

Answer 1

Answers:-

Slow Start in Transmission Control Protocol (TCP)

• Slow Start in Transmission Control Protocol (TCP) is method used for the slowly increment in network connections and speed of network.
• In slow start method it uses exponential increment that can be used to balance the network and expands window size.
• In congestion control using TCP method are using slow start to avoid unnecessary data and forward this unnecessary data to other which keeps network congestion safe.

Avoidance in Transmission Control Protocol (TCP)

• Avoidance is the method used in TCP after two methods i.e. slow start and ssthresh method and also congestion and its windows expands it when it will enter the new state which is called as congestion avoidance.
• This method uses additive increment because it comes after threshold value(ssthresh) and also cwnd(congestion windows) increase.
• In avoidance state of congestion it will receive acknowledgement which is not duplicate then it leads to additive increment of windows congestion in TCP.