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Comparison Between Traffic Policing and Traffic Shaping
Similarity
Traffic policing and traffic shaping share the following features:
- Both are used to limit network traffic rate.
- Both use token buckets to measure the traffic rate.
- Both apply to DS boundary nodes.
Difference
The following table lists the differences between traffic policing and traffic shaping.| Traffic policing | Traffic Shaping |
|---|---|
| Drops excess traffic over the specifications or re-marks such traffic with a lower priority. | Buffers excess traffic over the specifications. |
| Consumes no additional memory resources and brings no delay or jitter. | Consumes memory resources for excess traffic buffer and brings delay and jitter. |
| Packet loss may result in packet retransmission. | Packet loss rarely occurs, so does packet retransmission. |
| Traffic re-marking supported. | Traffic re-marking unsupported. |
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