The SDN adaptive parameters can be configured by going to Rules & Checking > Check Parameters in the LoadMaster WUI.

The SDN Adaptive Parameters section contains the following fields:

  • Adaptive Interval (sec): When using SDN-adaptive scheduling, the SDN Controller is polled to retrieve the port statistics values for each Real Server. This field value specifies how often this occurs.
  • Average over <N-Avg> Load values: Use this value to dampen fluctuations in the system. This ensures that the adaptive value and weight of the Real Servers do not change too frequently which provides a more stable and consistent traffic flow. The default and recommended value for this field is 6.
  • UseMin. Control Variable Value (%): Anything below the value set here is considered idle traffic and it does not affect the adaptive value (which is displayed on the Real Servers Statistics screen), for example - in the screenshot above anything below 5% is considered idle.
  • Use relative Bandwidth: Use the maximum load observed on the link as the link bandwidth. We recommend enabling this option. If this option is not selected then we use the real bandwidth.
  • Reset values: The Reset values check box will appear if the Use relative Bandwidth check box is enabled. Ticking Reset values will reset the maximum load values which have been observed.
  • Reset values to Default: Clicking this button will reset the SDN adaptive parameters to their default values.