EXFO AXS-200/850 Ethernet Test Set - Manual (Page 83)

RFC 2544
Ethernet Test Set 73
Latency Configuration
Latency Configuration
The objective of this test is to find the time required for the sent frame to go
through the device under test and return to the AXS-200/850 module.
Starting by sending a stream of frames for the predefined duration (Test
Time) and throughput (Maximum Rate) at a particular frame size, an
identifying dependent tag is included in one frame. The time at which this
frame is transmitted is recorded (timestamp A). When the tagged frames
come back, the time is recorded again (timestamp B) and the Latency
result is: timestamp B - timestamp A. The test is repeated for the defined
number of times (Number of Trials) and the average result is calculated.
The test is performed for each defined frame size.
Press , select RFC 2544, Configuration, and the Latency tab.
Note: This page is not available when the Dual Test Set parameter is set to
Remote in Global Configuration on page 58.
Note: Latency must be enabled from Global Configuration on page 58.
³
Test Time (MM:SS): Select the test
time value. Choices are 1 second
to 2 minutes. The default setting is
1 second (00:01).
³
Number of Trials: Select the
number of trials to average.
Choices are from 1 to 50 trials. The
default setting is 1 trial.