Recommendation ITU-T L.1310 contains the definition of energy efficiency/performance metrics test procedures, methodologies and measurement profiles required to assess the energy efficiency/performance of telecommunication equipment. Energy efficiency/performance metrics and measurement methods are defined for telecommunication network equipment and small networking equipment. These metrics allow for the comparison of equipment within the same class, e.g., equipment using the same technologies. The comparison of equipment in different classes is out of the scope of this Recommendation.