The interval at which the traffic shaping rate increases can be set, but the interval at which the traffic shaping rate decreases cannot be set. Why

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When the NQA test instance detects that the packet loss ratio is greater than the upper threshold in the adaptive traffic profile, the upstream device reduces the traffic shaping rate. This ensures that the traffic shaping rate rapidly adapt to the network and prevents data loss.

Other related questions:
Why the interval at which the traffic shaping rate increases can be set in an adaptive traffic profile of an AR, but the interval at which the traffic shaping rate decreases cannot be set
An adaptive traffic profile on an AR does not support the configuration of the interval at which the traffic shaping rate decreases. When an NQA test instance detects that the packet loss rate is greater than the upper limit configured in the adaptive traffic profile, the traffic shaping rate of the interface needs to be reduced immediately. This ensures that the traffic shaping rate is rapidly adapted to the network in order to prevent data loss.

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.

Is the upper or lower threshold for the traffic shaping rate in the adaptive traffic profile used by default
The upper threshold for the traffic shaping rate is used by default. The system then dynamically adjust traffic shaping parameters based on the NQA result.

Which command is used to set the auto-dial interval

The dialer timer autodial seconds command is used to set the auto-dial interval.

seconds specifies the auto-dial interval. The value is an integer that ranges from 1 to 604800, in seconds. By default, the auto-dial interval is 300 seconds.
NOTE:
Before using the dialer timer autodial seconds command, ensure that the C-DCC function has been enabled by the dialer enable-circular command.

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.

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