Chapter 3 Ethernet Testing
BER testing
HST-3000 Ethernet Testing User’s Guide
79
BER testing
If you are testing on an Ethernet network, when you perform
an end-to-end test you can transmit BERT patterns in the
frame payload to determine the ratio of erroneous bits to the
total bits received.
To transmit a BERT pattern
1 If you haven’t already done so, launch the Terminate
application for the circuit you are testing (see “Launching
an application” on page 28), and then select the
Layer 2 Traffic test (see “Selecting a layer 2 test” on
page 46).
2 Initialize the link (see “Initializing the link for Ethernet
testing” on page 47).
3 Press the Configure navigation key.
A configuration menu appears.
4 Use the left and right arrow keys to go to the Ethernet
configuration menu.
5 In Tx Payload, select a BERT payload, and then select
the pattern to transmit in the payload (see “Specifying
frame characteristics” on page 51).
6 Optional. If you intend to insert Bit Errors into the traffic
stream, go to the Error configuration menu, and then
verify that the error type is set to Bit (see “Inserting errors”
on page 81).
7 If you need to specify other settings for the test, use the
left and right arrow keys to go to the appropriate configu-
ration menu; otherwise, press the Home button to return
to the Main screen.
8 Press the Action soft key again, and then select
Start Traffic (if you configured a constant, bursty, or
flooded load), or Start Ramp (if you configured a ramped
traffic load).
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