TCP Congestion Control Concept (2)


How to control transfer rate?
Introduces new variable "congestion window (cwnd)" in sliding window scheme.
Adjusts the amount of data being injected into the network

Determination of Window Size
Window Size = min(advertised window, congestion window)
Advertised Window is used for flow control, which is sent from receiver side.
Congestion Window is used for congestion control, which is decided on sender side.