EXFO FTB-8500 Series for FTB-500 - Manual (Page 325)

RFC 2544 Tabs
Ethernet and Fibre Channel Application 311
Frame Loss
Frame Loss
The objective of this test is to find the percentage of frames that are lost
due to lack of resources. Starting at full media speed, the test is performed
for a specific frame size and for the specified duration (Test Time). The test
is repeated by decreasing the throughput by the specified granularity (Test
granularity), then the test is repeated again until there are two successive
trials in which no frames are lost. The test performs the defined number of
trials (Nb of trials to average). At the end, the results are validated the
number of times specified (Final result validation). The test is performed
for each defined frame size.
Press TEST, RFC 2544, and Frame Loss.
Note: Frame Loss must be enabled from Global Configuration on page 298.
Configuration

Test Time (MM:SS): Select the test time value. Possible values are 1
second to 30 minutes. The default setting is 1 second (00:01).