Q. Show the Congestion control in TCP?

Congestion control in TCP

• TCP assumes that the cause of lost segment is due to congestion in the network
• Retransmission of the lost packets doesn't solve congestion problem - it aggravates it
• In flow control, sender window size determined by the receiver window - no information about the network congestion
• If the network cannot deliver data to the receiver due to congestion, it has to inform the sender to slow down
• Congestion window: min (receiver window size and congestion window size)