12.2. Flow Controller Settings

When using Flow Controllers, the DataWriter may need specific parameters to be set. Properties related with this feature lie on the fastdds.sfc namespace.

• Property fastdds.sfc.priority is used to set the priority of the DataWriter for HIGH_PRIORITY and PRIORITY_WITH_RESERVATION flow controllers. Allowed values are from -10 (highest priority) to 10 (lowest priority). If the property is not present, it will be set to the lowest priority.

• Property fastdds.sfc.bandwidth_reservation is used to set the percentage of the bandwidth that the DataWriter is requesting for PRIORITY_WITH_RESERVATION flow controllers. Allowed values are from 0 to 100, and express a percentage of the total flow controller limit. If the property is not present, it will be set to 0 (no bandwidth is reserved for the DataWriter).