What is the difference between congestion control and traffic shaping?

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What is the difference between congestion control and traffic shaping?

Congestion control and traffic shaping are both techniques used in network management to regulate the flow of data, but they serve different purposes.

Congestion control is a mechanism used to prevent network congestion by managing the rate at which data is transmitted. It aims to ensure that the network does not become overwhelmed with traffic, which can lead to packet loss and degraded performance. Congestion control techniques include methods such as TCP congestion control algorithms, which dynamically adjust the transmission rate based on network conditions.

On the other hand, traffic shaping is a technique used to prioritize and shape the flow of data within a network. It involves controlling the bandwidth allocation for different types of traffic, such as giving higher priority to real-time applications like voice or video streaming. Traffic shaping helps to optimize network performance and ensure that critical applications receive the necessary bandwidth, while less important traffic is limited or delayed.

In summary, congestion control focuses on preventing network congestion by managing the transmission rate, while traffic shaping prioritizes and controls the flow of data within a network to optimize performance and allocate bandwidth effectively.