What are recommended values of the CBS and PBS when interface-based traffic policing is used

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When interface-based traffic policing is configured on an AR, it is recommended that the default CBS and PBS be used.
- If the PIR is set and is different from the CIR, the CBS is 125 times the CIR and the PBS is 125 times the PIR.
- If the PIR is not set or the PIR equals the CIR, the CBS is 188 times the CIR and the PBS is 313 times the CIR.
The CIR is expressed in kbit/s, and the CBS and PBS are expressed in bytes.

Other related questions:
What are experiential values of CBS and PBS when CAR is configured on interfaces
In most cases: -If the peak information rate (PIR) is configured and the PIR and CIR are different, the committed burst size (CBS) is 125 times greater than the committed information rate (CIR), and the peak burst size (PBS) is 125 times greater than the PIR. -If the PIR is not configured or the PIR and CIR are the same, the CBS is 188 times greater than the CIR, and the PBS is 313 times greater than the CIR. The CIR value is expressed in kbit/s, and the CBS and PBS values are expressed in Bytes.

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.

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 policing and traffic shaping for S series switches
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.

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