Bert direction, Bert results, Network performance stats – Verilink PRISM 3030 (34-00208.L) Product Manual User Manual

Page 49: Errored seconds, Severely errored secs, Bert direction bert results, Errored seconds severely errored secs

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Diagnostics

39

BERT Direction

Selects which direction to send the test pattern. The choices are Toward Network
or Toward DTE. If the BERT Port menu is set to Network, the BERT direction is
automatically forced toward the network and this option does not appear.

BERT Results

The following BERT status and error counts are available through this selection:

Sync Status.

Displays the state of pattern sync during a test. If no test is in

progress, NO SYNC is displayed.

Elapsed Time.

Displays the elapsed time since a timed test began. A value is

displayed only when a test is running (in the HH:MM:SS format).

Bit Errors.

Displays the total number of bit errors detected since the test began or

since error statistics were last cleared.

Errored Seconds.

Displays the number of errored seconds that have been detected

since the test began or since error statistics were last cleared.

Pattern Sync Losses.

Displays the number of times during the test period that the

BERT pattern detector lost sync.

Reset BERT Test.

When set to YES, the BERT error counts and elapsed time

values are cleared to zero. This parameter then returns to NO automatically.

Network

Performance Stats

The unit records performance statistics as described in TR 54016. The unit is
equipped with a dual set of data registers with individual resets that maintain these
statistics. One set is accessed by the network service provider (telco). The other set
is accessed through the front panel, terminal interface, or the Verilink 8100A Site
Controller.

Performance data is collected in 15 -minute intervals for the preceding 24 -hour
period. The intervals (numbered Int# 00 to Int# 96) are viewed by pressing Select
and using the up and down arrow keys. Interval 00 is the most recently stored
interval and interval 96 is the interval that is 24 hours old. Pressing the Exit or
Select keys returns the cursor to the left. This allows scrolling to another data type.

When a specific interval is selected for viewing performance data, all other
parameters reflect that interval until another interval is selected.

Errored Seconds

ES displays the number of one-second intervals where at least one CRC or
out -of-frame error event occurred.

Severely Errored Secs

SES displays the number of one-second intervals where at least 320 CRC errors
were detected or at least one out-of-frame event occurred.

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