+ /** @brief Sets the rate of a task
+ *
+ * This will change the network bandwidth a task can use. This rate cannot be dynamically changed. Once the task has
+ * started, this call is ineffective. This rate depends on both the nominal bandwidth on the route onto which the task
+ * is scheduled (@see SD_task_get_current_bandwidth) and the amount of data to transfer.
+ *
+ * To divide the nominal bandwidth by 2, the rate then has to be :
+ * rate = bandwidth/(2*amount)
+ */