VeEX UX400, User Manual

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Once all configurations have been made, the user can start the BERT test (press the
Start
icon on the top right section of the screen). The following are three scenarios of
how to prepare and start the unit for BERT testing.
Note: If testing on the fiber ports, make sure the LASER is turned on before starting the test.
End-to-End Testing
Connect the UX400 to another unit that supports BERT testing.
After configuring test settings on both units, start the tests.
Far-End Unit in Manual Loopback Mode
If the far-end unit is already in a manual loopback mode, do not send a loop up command since it is not necessary.
Once the correct control settings are configured, the user can start the test.
The selected tests will run automatically. When all the tests are complete the test will stop automatically. If the BERT test suite needs to be stopped before they are done,
then simply press the
Stop
button, located in the actions drop-down menu. The status of each selected test can be seen in the Results tab.
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6.3.2 BERT Results
6.3.2.1 Summary
Summary tab:
The following results including the Start (ST) and Elapsed (ET) times are displayed:
Line Rate
(Mbps)
:
Negotiated rate of the interface (10M, 100M, or 1000M). This value is always fixed since it depends on the maximum capacity of the link under
test, hence the test interface that is configured.
Utilization:
% of Line Rate. For example, if we transmit 100Mbps on a 1Gbps interface then the utilization value is 10% (or 100Mbps) of the total link capacity (or
Line Rate).
Utilization (bps)
Framed Rate:
(P MAC/IP VLAN Tag + Type/ CRC) / (P Total Overhead) * Line Rate % (in Mbps).
Data Rate:
Payload / (P Total Overhead) * Line Rate %.
Number of bytes
Pause Frames:
Total number of transmitted and received ethernet pause flow-control frames.
BERT Results - Summary
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6.3.2.2 Signal
The Signal tab (fiber ports only) displays the optical level measured by the SFP transceiver.
BERT Results - Signal (Page 1) BERT Results - Signal (Page 2)
UX400 10G e-Manual D07-00-058P RevA00 Page 49 of 209