EXFO FTB-860, User Manual

Page: 97 / 409

RFC 2544 Test Setup and Results
NetBlazer
85
Subtests Configuration
Frame Loss Configuration
The objective of this test is to find the percentage of frames that are lost
due to lack of resources. Starting at the specified maximum rate (
Max.
Rate ), 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
10 %, then the test is repeated again until there are two successive trials in
which no frames are lost. The test is performed for each defined frame
size.
Note:
Frame Loss must be enabled from
Global Configuration
on page 77.

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
).

Max. Rate : Select the Maximum Rate for the test, in terms of a
percentage of the line rate (
%
),
Mbit/s
, or in
Gbit/s
. The accepted
values are as shown in table Max. Rate on page 82.

Threshold (%)
: Set the threshold value of frame loss. If the
determined frame loss value is lower or equal to the threshold value,
the test is declared as
PASS
. If the determined frame loss value for a
specific frame size is greater than the threshold value, the test is
declared as
FAIL
. This value should range from
0.000
to
100.000
and
applies to all the 7 RFC 2544 frame sizes or for the 7 user-defined frame
sizes. The default setting is
0.100
.
Note: Threshold parameter will be editable only when the RFC 2544 Pass/Fail
Verdict parameter is Enabled in
Global Configuration
on page 77.