To conduct a test that meets 100% of the RF2544 requirements would take about 2.5 days of continuous testing. This is typically only done in a laboratory environment and rarely (if ever) done in the field. Field tests are almost always customized by the user to provide a thorough test within a more reasonable time frame. For example, the RFC2544 requires testing with eight different packet sizes. A typical field test will reduce the number of different packet sizes, many times only using the largest and smallest packet size, which greatly reduces the test time. The test times shown for each test on the LanExpert are for the default settings, which we have picked for field tests. As the user changes the test parameters these estimated times will change so that the total test time is known before the tests are started.