99..33..22 Test SetupTest Setup
Restriction of Number of StepsRestriction of Number of Steps
FC Perf. measures the throughput, traffic profile, latency, burst, and BB credit
count while changing the load applied to the DUT by changing the
transmission rate and size of the Ethernet frame. In addition to the final results,
Network Master retains the measurement results at each load as an
intermediate results, but 500 steps are retained at maximum. Depending on the
setting of the steps, it is possible to retain more than 500 steps, but in that case
the oldest measurement result(s) will be discarded.
Also, depending on the setting, only the results of one category (throughput,
traffic profile, latency, burst, or BB credit count) may be retained in large
amount disproportionately. In order to avoid this, Network Master organizes
the results so that results at least 100 steps remain as shown in the examples
below.
However, Traffic Profile and Credit (when BB Credit Count is set to SteppedStepped)
start the next test when the number of steps has reached the number of
measurable steps.
Example 1
TestTest
Number of Steps set inNumber of Steps set in
SetupSetup
Number of steps in whichNumber of steps in which
the measurement resultsthe measurement results
are retainedare retained
Throughput 100 100
Burst 200 200
Credit 500 200*
*: The test is stopped when the 200th step is measured because the
number of total steps reaches 500.
Example 2
TestTest
Number of Steps set inNumber of Steps set in
SetupSetup
Number of steps in whichNumber of steps in which
the measurement resultsthe measurement results
are retainedare retained
Throughput 500
300*
1
Burst 200
100*
2
Credit 100 100
*1: Measurement results for the first 200 steps are discarded.
*2: Measurement results for the first 100 steps are discarded.
In the test setting, the total number of steps can be set to more than 500. In this
case, a warning is displayed on the Summary screen when the measurement is
started.
The number of test steps can be calculated by the following formula.
Number of steps = f × l
f: Number of Frame Size steps
l: Number of Line Load steps
In the following setting example, the number of steps is 50.
To Next Page
Loading...
