With ExpertSAM™, users can test ability of Ethernet-based services to carry variety of traffic at defined performance levels. Application is based on ITU Y.1564 standard and supports testing of 10 Gbps Ethernet links. Throughput, Frame Loss, Frame Delay, and Frame Delay Variation (cumulatively known as Service Acceptance Criteria) are measured and compared to expected values for each service ensuring it is within committed range or threshold defined for guaranteed traffic such as CIR.