+ s4u::Link* link_{}; /*< The link onto which this data is attached*/
+ bool is_tracked_{false}; /*<Whether the link is tracked or not*/
+
+ double cumulated_bytes_{}; /*< Cumulated load since last reset*/
+ double min_bytes_per_second_{}; /*< Minimum instantaneous load observed since last reset*/
+ double max_bytes_per_second_{}; /*< Maximum instantaneous load observed since last reset*/
+ double last_reset_{}; /*< Timestamp of the last reset (init timestamp by default)*/
+ double last_updated_{}; /*< Timestamp of the last energy update event*/
+