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Difference between Flow Control and Congestion Control

  • Difficulty Level : Medium
  • Last Updated : 02 Apr, 2020

Both Flow Control and Congestion Control are the traffic controlling methods in different situations.
The main difference between flow control and congestion control is that, In flow control, Traffics are controlled which are flow from sender to a receiver. On the other hand, In congestion control, Traffics are controlled entering to the network.

Let’s see the difference between flow control and congestion control:

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S.NOFlow ControlCongestion Control
1.In flow control, Traffics are controlled which are flow from sender to a receiver.In this, Traffics are controlled entering to the network.
2.Data link layer and Transport layer handle it.Network layer and Transport layer handle it.
3.In this, Receiver’s data is prevented from being overwhelmed.In this, Network is prevented from congestion.
4.In flow control, Only sender is responsible for the traffic.In this, Transport layer is responsible for the traffic.
5.In this, Traffic is prevented by slowly sending by the sender.In this, Traffic is prevented by slowly transmitting by the transport layer.
6.In flow control, buffer overrun is restrained in the receiver.In congestion control, buffer overrun is restrained in the intermediate systems in the network.
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