Differences between traffic policing and traffic shaping for S series switches

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Traffic policing monitors the rate of traffic entering a network, and discards excess traffic to limit the traffic within a specified range and to protect network resources as well as user benefits.
Traffic shaping proactively adjusts the rate of outgoing traffic to reduce traffic bursts, so that outgoing traffic can be transmitted at a stable rate, preventing traffic congestion on downstream devices.
In most cases, traffic policing is applied to the inbound direction of a device, while traffic shaping is applied to the outbound direction of a device.

Other related questions:
What Are Differences Between the Outbound Traffic Policing and Traffic Shaping
Both outbound traffic policing (TP) and traffic shaping (TS) limit the rate of outgoing traffic on an interface. Traffic policing and traffic shaping have the following differences: -Traffic policing directly discards packets with rates that are greater than the traffic policing rate. Traffic shaping, however, buffers packets with rates that are greater than the traffic shaping rate and sends the buffered packets at an even rate. -Traffic shaping increases the delay, whereas traffic policing does not.

Differences between traffic shaping and traffic policing in the QoS function of the USG6000 series
Traffic shaping differs from traffic policing in the following aspects: �?Traffic shaping involves caching packets that exceed the traffic specifications in traffic policing. Cached packets are forwarded when there are sufficient tokens in the token bucket. �?Traffic shaping may increase the delay whereas traffic policing does not.

What are causes of inaccurate traffic policing or traffic shaping result on an AR
Traffic policing and traffic shaping may be performed on the SRU or interface card depending on the traffic type. When traffic policing or traffic shaping is performed on the interface card, the accuracy depends on the granularity of rate limiting. If different links are used, there is the problem of protocol encapsulation compensation.

Can traffic policing and traffic shaping be configured on an interface in the outbound direction
Traffic policing (qos car) affects traffic shaping (qos gts). It is recommended that the two commands should be not configured on an interface simultaneously.

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