Verilink WANsuite 5165, Reference Manual

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V T 1 0 0 I n t e r f a c e 4-11
Performance Screens
The Performance prompt near the bottom of the Network screens displays a
Performance 24 Hour screen (Figure 4.8), which provides a summary of the
error events that have occurred during each interval of the past 24 hours.
In addition to the parameters already defined on the Error Status and Alarm
Thresholds Table on page 4-9, the following parameters are included on the
Performance screens.
BES A Bursty Error Seconds (BES) is a 1-second period during which at least
more than one but fewer than 320 CRC6 errors occurred.
LOFC The Loss of Frame Count (LOFC) represents the number of time a loss of
frame is declared. A loss of frame is declared after 2.5 seconds of continuous
loss of signal or OOF.
CRCES Sets the Cyclic Redundancy Check Errored Seconds (CRCES) threshold. A
CRC is a method of confirming the integrity of received data.
Figure 4.8 Performance 24 Hour Screen
Select the “Performance 30 Day Prompt” on this screen to see a detailed
summary of the error events that have occurred during each interval of the
past 30 days (Figure 4.9).