*/
NetworkAction(Model* model, s4u::Host& src, s4u::Host& dst, double cost, bool failed)
: Action(model, cost, failed), src_(src), dst_(dst)
*/
NetworkAction(Model* model, s4u::Host& src, s4u::Host& dst, double cost, bool failed)
: Action(model, cost, failed), src_(src), dst_(dst)